[clang] [llvm] Explicit types in cbuffer layouts (PR #156919)
Justin Bogner via llvm-commits
llvm-commits at lists.llvm.org
Mon Oct 6 08:46:38 PDT 2025
https://github.com/bogner updated https://github.com/llvm/llvm-project/pull/156919
>From f6008b351cea1ff44e98d4e8ac6f442339830031 Mon Sep 17 00:00:00 2001
From: Justin Bogner <mail at justinbogner.com>
Date: Tue, 19 Aug 2025 13:23:42 -0600
Subject: [PATCH 1/9] [DirectX] Add 32- and 64-bit 3-element vectors to
DataLayout
This explicitly adds two 3-element vectors to the DataLayout so that
they'll be element-aligned. We need to do this more generally for
vectors, but this unblocks some very common cases.
Workaround for #123968
---
clang/lib/Basic/Targets/DirectX.h | 5 ++++-
clang/test/CodeGenHLSL/basic-target.c | 2 +-
llvm/lib/TargetParser/TargetDataLayout.cpp | 5 ++++-
llvm/test/CodeGen/DirectX/CBufferAccess/memcpy.ll | 8 ++++----
4 files changed, 13 insertions(+), 7 deletions(-)
diff --git a/clang/lib/Basic/Targets/DirectX.h b/clang/lib/Basic/Targets/DirectX.h
index bd13c9ee0fd05..a21a593365773 100644
--- a/clang/lib/Basic/Targets/DirectX.h
+++ b/clang/lib/Basic/Targets/DirectX.h
@@ -64,8 +64,11 @@ class LLVM_LIBRARY_VISIBILITY DirectXTargetInfo : public TargetInfo {
NoAsmVariants = true;
PlatformMinVersion = Triple.getOSVersion();
PlatformName = llvm::Triple::getOSTypeName(Triple.getOS());
+ // TODO: We need to align vectors on the element size generally, but for now
+ // we hard code this for 3-element 32- and 64-bit vectors as a workaround.
+ // See https://github.com/llvm/llvm-project/issues/123968
resetDataLayout("e-m:e-p:32:32-i1:32-i8:8-i16:16-i32:32-i64:64-f16:16-f32:"
- "32-f64:64-n8:16:32:64");
+ "32-f64:64-n8:16:32:64-v48:16:16-v96:32:32-v192:64:64");
TheCXXABI.set(TargetCXXABI::GenericItanium);
}
bool useFP16ConversionIntrinsics() const override { return false; }
diff --git a/clang/test/CodeGenHLSL/basic-target.c b/clang/test/CodeGenHLSL/basic-target.c
index c700e06bd5850..b9482df5a0987 100644
--- a/clang/test/CodeGenHLSL/basic-target.c
+++ b/clang/test/CodeGenHLSL/basic-target.c
@@ -6,5 +6,5 @@
// RUN: %clang -cc1 -triple dxil-pc-shadermodel6.0-domain -emit-llvm -o - %s | FileCheck %s
// RUN: %clang -cc1 -triple dxil-pc-shadermodel6.0-geometry -emit-llvm -o - %s | FileCheck %s
-// CHECK: target datalayout = "e-m:e-p:32:32-i1:32-i8:8-i16:16-i32:32-i64:64-f16:16-f32:32-f64:64-n8:16:32:64"
+// CHECK: target datalayout = "e-m:e-p:32:32-i1:32-i8:8-i16:16-i32:32-i64:64-f16:16-f32:32-f64:64-n8:16:32:64-v48:16:16-v96:32:32-v192:64:64"
// CHECK: target triple = "dxilv1.0-pc-shadermodel6.0-{{[a-z]+}}"
diff --git a/llvm/lib/TargetParser/TargetDataLayout.cpp b/llvm/lib/TargetParser/TargetDataLayout.cpp
index cea246e9527bd..5e6f77316780e 100644
--- a/llvm/lib/TargetParser/TargetDataLayout.cpp
+++ b/llvm/lib/TargetParser/TargetDataLayout.cpp
@@ -548,8 +548,11 @@ std::string Triple::computeDataLayout(StringRef ABIName) const {
case Triple::csky:
return computeCSKYDataLayout(*this);
case Triple::dxil:
+ // TODO: We need to align vectors on the element size generally, but for now
+ // we hard code this for 3-element 32- and 64-bit vectors as a workaround.
+ // See https://github.com/llvm/llvm-project/issues/123968
return "e-m:e-p:32:32-i1:32-i8:8-i16:16-i32:32-i64:64-f16:16-"
- "f32:32-f64:64-n8:16:32:64";
+ "f32:32-f64:64-n8:16:32:64-v48:16:16-v96:32:32-v192:64:64";
case Triple::hexagon:
return "e-m:e-p:32:32:32-a:0-n16:32-"
"i64:64:64-i32:32:32-i16:16:16-i1:8:8-f32:32:32-f64:64:64-"
diff --git a/llvm/test/CodeGen/DirectX/CBufferAccess/memcpy.ll b/llvm/test/CodeGen/DirectX/CBufferAccess/memcpy.ll
index a78fdd5037f93..f1486f974fb36 100644
--- a/llvm/test/CodeGen/DirectX/CBufferAccess/memcpy.ll
+++ b/llvm/test/CodeGen/DirectX/CBufferAccess/memcpy.ll
@@ -74,7 +74,7 @@ entry:
; CHECK: [[UPTO1:%.*]] = insertelement <3 x double> [[UPTO0]], double [[Y]], i32 1
; CHECK: [[UPTO2:%.*]] = insertelement <3 x double> [[UPTO1]], double [[Z]], i32 2
; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A2_COPY:%.*]], i32 0
-; CHECK: store <3 x double> [[UPTO2]], ptr [[DEST]], align 32
+; CHECK: store <3 x double> [[UPTO2]], ptr [[DEST]], align 8
; CHECK: [[LOAD:%.*]] = call { double, double } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 5)
; CHECK: [[X:%.*]] = extractvalue { double, double } [[LOAD]], 0
; CHECK: [[Y:%.*]] = extractvalue { double, double } [[LOAD]], 1
@@ -83,9 +83,9 @@ entry:
; CHECK: [[UPTO0:%.*]] = insertelement <3 x double> poison, double [[X]], i32 0
; CHECK: [[UPTO1:%.*]] = insertelement <3 x double> [[UPTO0]], double [[Y]], i32 1
; CHECK: [[UPTO2:%.*]] = insertelement <3 x double> [[UPTO1]], double [[Z]], i32 2
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A2_COPY]], i32 32
-; CHECK: store <3 x double> [[UPTO2]], ptr [[DEST]], align 32
- call void @llvm.memcpy.p0.p2.i32(ptr align 32 %a2.copy, ptr addrspace(2) align 32 @a2, i32 64, i1 false)
+; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A2_COPY]], i32 24
+; CHECK: store <3 x double> [[UPTO2]], ptr [[DEST]], align 8
+ call void @llvm.memcpy.p0.p2.i32(ptr align 32 %a2.copy, ptr addrspace(2) align 32 @a2, i32 48, i1 false)
; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb, align 4
; CHECK: [[LOAD:%.*]] = call { half, half, half, half, half, half, half, half } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 7)
>From b0b252904e5c0d204304c73b24164c5d3a2de1a0 Mon Sep 17 00:00:00 2001
From: Justin Bogner <mail at justinbogner.com>
Date: Thu, 7 Aug 2025 15:02:49 -0700
Subject: [PATCH 2/9] [DirectX] Introduce `dx.Padding` type
This introduces the `dx.Padding` type as an alternative to the
`dx.Layout` types that are currently used for cbuffers. Later, we'll
remove the `dx.Layout` types completely, but making the backend handle
either makes it easier to stage the necessary changes to get there.
See #147352 for details.
---
llvm/include/llvm/Analysis/DXILResource.h | 19 ++++
llvm/lib/Analysis/DXILResource.cpp | 47 +++++++++-
llvm/lib/IR/Type.cpp | 4 +
.../DXILResource/buffer-frombinding.ll | 4 +-
.../DirectX/CBufferLoadLegacy-errors.ll | 12 +--
.../test/CodeGen/DirectX/CBufferLoadLegacy.ll | 12 +--
.../ContainerData/PSVResources-order.ll | 2 +-
.../DirectX/ContainerData/PSVResources.ll | 2 +-
.../DirectX/CreateHandleFromBinding.ll | 2 +-
.../ForwardHandleAccesses/cbuffer-access.ll | 20 ++---
...ffer_metadata.ll => cbuffer-layouttype.ll} | 3 +
.../DirectX/Metadata/cbuffer-metadata.ll | 89 +++++++++++++++++++
.../CodeGen/DirectX/Metadata/cbuffer-only.ll | 2 +-
llvm/unittests/Analysis/DXILResourceTest.cpp | 4 +-
14 files changed, 187 insertions(+), 35 deletions(-)
rename llvm/test/CodeGen/DirectX/Metadata/{cbuffer_metadata.ll => cbuffer-layouttype.ll} (96%)
create mode 100644 llvm/test/CodeGen/DirectX/Metadata/cbuffer-metadata.ll
diff --git a/llvm/include/llvm/Analysis/DXILResource.h b/llvm/include/llvm/Analysis/DXILResource.h
index 88ac0a11fe5a2..c7aff167324e6 100644
--- a/llvm/include/llvm/Analysis/DXILResource.h
+++ b/llvm/include/llvm/Analysis/DXILResource.h
@@ -243,6 +243,25 @@ class LayoutExtType : public TargetExtType {
}
};
+/// The dx.Padding target extension type
+///
+/// `target("dx.Padding", NumBytes)`
+class PaddingExtType : public TargetExtType {
+public:
+ PaddingExtType() = delete;
+ PaddingExtType(const PaddingExtType &) = delete;
+ PaddingExtType &operator=(const PaddingExtType &) = delete;
+
+ unsigned getNumBytes() const { return getIntParameter(0); }
+
+ static bool classof(const TargetExtType *T) {
+ return T->getName() == "dx.Padding";
+ }
+ static bool classof(const Type *T) {
+ return isa<TargetExtType>(T) && classof(cast<TargetExtType>(T));
+ }
+};
+
//===----------------------------------------------------------------------===//
class ResourceTypeInfo {
diff --git a/llvm/lib/Analysis/DXILResource.cpp b/llvm/lib/Analysis/DXILResource.cpp
index b78cc03e34dbc..f9bf09262dd1f 100644
--- a/llvm/lib/Analysis/DXILResource.cpp
+++ b/llvm/lib/Analysis/DXILResource.cpp
@@ -281,6 +281,38 @@ static StructType *getOrCreateElementStruct(Type *ElemType, StringRef Name) {
return StructType::create(ElemType, Name);
}
+static Type *getTypeWithoutPadding(Type *Ty) {
+ // Recursively remove padding from structures.
+ if (auto *ST = dyn_cast<StructType>(Ty)) {
+ LLVMContext &Ctx = Ty->getContext();
+ SmallVector<Type *> ElementTypes;
+ ElementTypes.reserve(ST->getNumElements());
+ for (Type *ElTy : ST->elements()) {
+ if (isa<PaddingExtType>(ElTy))
+ continue;
+ ElementTypes.push_back(getTypeWithoutPadding(ElTy));
+ }
+
+ // Handle explicitly padded cbuffer arrays like { [ n x paddedty ], ty }
+ if (ElementTypes.size() == 2)
+ if (auto *AT = dyn_cast<ArrayType>(ElementTypes[0]))
+ if (ElementTypes[1] == AT->getElementType())
+ return ArrayType::get(ElementTypes[1], AT->getNumElements() + 1);
+
+ // If we only have a single element, don't wrap it in a struct.
+ if (ElementTypes.size() == 1)
+ return ElementTypes[0];
+
+ return StructType::get(Ctx, ElementTypes, /*IsPacked=*/false);
+ }
+ // Arrays just need to have their element type adjusted.
+ if (auto *AT = dyn_cast<ArrayType>(Ty))
+ return ArrayType::get(getTypeWithoutPadding(AT->getElementType()),
+ AT->getNumElements());
+ // Anything else should be good as is.
+ return Ty;
+}
+
StructType *ResourceTypeInfo::createElementStruct(StringRef CBufferName) {
SmallString<64> TypeName;
@@ -334,14 +366,21 @@ StructType *ResourceTypeInfo::createElementStruct(StringRef CBufferName) {
}
case ResourceKind::CBuffer: {
auto *RTy = cast<CBufferExtType>(HandleTy);
- LayoutExtType *LayoutType = cast<LayoutExtType>(RTy->getResourceType());
- StructType *Ty = cast<StructType>(LayoutType->getWrappedType());
SmallString<64> Name = getResourceKindName(Kind);
if (!CBufferName.empty()) {
Name.append(".");
Name.append(CBufferName);
}
- return StructType::create(Ty->elements(), Name);
+
+ // TODO: Remove this when we update the frontend to use explicit padding.
+ if (LayoutExtType *LayoutType =
+ dyn_cast<LayoutExtType>(RTy->getResourceType())) {
+ StructType *Ty = cast<StructType>(LayoutType->getWrappedType());
+ return StructType::create(Ty->elements(), Name);
+ }
+
+ return getOrCreateElementStruct(
+ getTypeWithoutPadding(RTy->getResourceType()), Name);
}
case ResourceKind::Sampler: {
auto *RTy = cast<SamplerExtType>(HandleTy);
@@ -454,10 +493,10 @@ uint32_t ResourceTypeInfo::getCBufferSize(const DataLayout &DL) const {
Type *ElTy = cast<CBufferExtType>(HandleTy)->getResourceType();
+ // TODO: Remove this when we update the frontend to use explicit padding.
if (auto *LayoutTy = dyn_cast<LayoutExtType>(ElTy))
return LayoutTy->getSize();
- // TODO: What should we do with unannotated arrays?
return DL.getTypeAllocSize(ElTy);
}
diff --git a/llvm/lib/IR/Type.cpp b/llvm/lib/IR/Type.cpp
index 9db48e8f6a96b..0e9535d24a4cc 100644
--- a/llvm/lib/IR/Type.cpp
+++ b/llvm/lib/IR/Type.cpp
@@ -1034,6 +1034,10 @@ static TargetTypeInfo getTargetTypeInfo(const TargetExtType *Ty) {
}
// DirectX resources
+ if (Name == "dx.Padding")
+ return TargetTypeInfo(
+ ArrayType::get(Type::getInt8Ty(C), Ty->getIntParameter(0)),
+ TargetExtType::CanBeGlobal);
if (Name.starts_with("dx."))
return TargetTypeInfo(PointerType::get(C, 0), TargetExtType::CanBeGlobal,
TargetExtType::CanBeLocal,
diff --git a/llvm/test/Analysis/DXILResource/buffer-frombinding.ll b/llvm/test/Analysis/DXILResource/buffer-frombinding.ll
index aeeb21ebb3201..ab1945d2921cc 100644
--- a/llvm/test/Analysis/DXILResource/buffer-frombinding.ll
+++ b/llvm/test/Analysis/DXILResource/buffer-frombinding.ll
@@ -150,7 +150,7 @@ define void @test_typedbuffer() {
; CHECK: Kind: CBuffer
; CHECK: CBuffer size: 4
- %cb1 = call target("dx.CBuffer", target("dx.Layout", {float}, 4, 0))
+ %cb1 = call target("dx.CBuffer", <{ [2 x <{ float, target("dx.Padding", 12) }>], float }>)
@llvm.dx.resource.handlefrombinding(i32 1, i32 8, i32 1, i32 0, ptr @Constants.str)
; CHECK: Resource [[CB1:[0-9]+]]:
; CHECK: Name: Constants
@@ -161,7 +161,7 @@ define void @test_typedbuffer() {
; CHECK: Size: 1
; CHECK: Class: CBV
; CHECK: Kind: CBuffer
- ; CHECK: CBuffer size: 4
+ ; CHECK: CBuffer size: 36
; CHECK-NOT: Resource {{[0-9]+}}:
diff --git a/llvm/test/CodeGen/DirectX/CBufferLoadLegacy-errors.ll b/llvm/test/CodeGen/DirectX/CBufferLoadLegacy-errors.ll
index 71dcf11b9dc88..196560f551f5f 100644
--- a/llvm/test/CodeGen/DirectX/CBufferLoadLegacy-errors.ll
+++ b/llvm/test/CodeGen/DirectX/CBufferLoadLegacy-errors.ll
@@ -11,11 +11,11 @@ declare void @f16_user(half)
; CHECK-SAME: in function four64
; CHECK-SAME: Type mismatch between intrinsic and DXIL op
define void @four64() "hlsl.export" {
- %buffer = call target("dx.CBuffer", target("dx.Layout", {double}, 8, 0))
+ %buffer = call target("dx.CBuffer", <{ double }>)
@llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
%load = call {double, double, double, double} @llvm.dx.resource.load.cbufferrow.4(
- target("dx.CBuffer", target("dx.Layout", {double}, 8, 0)) %buffer,
+ target("dx.CBuffer", <{ double }>) %buffer,
i32 0)
%data = extractvalue {double, double, double, double} %load, 0
@@ -28,11 +28,11 @@ define void @four64() "hlsl.export" {
; CHECK-SAME: in function two32
; CHECK-SAME: Type mismatch between intrinsic and DXIL op
define void @two32() "hlsl.export" {
- %buffer = call target("dx.CBuffer", target("dx.Layout", {float}, 4, 0))
+ %buffer = call target("dx.CBuffer", <{ float }>)
@llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
%load = call {float, float} @llvm.dx.resource.load.cbufferrow.2(
- target("dx.CBuffer", target("dx.Layout", {float}, 4, 0)) %buffer,
+ target("dx.CBuffer", <{ float }>) %buffer,
i32 0)
%data = extractvalue {float, float} %load, 0
@@ -41,5 +41,5 @@ define void @two32() "hlsl.export" {
ret void
}
-declare { double, double, double, double } @llvm.dx.resource.load.cbufferrow.4.f64.f64.f64.f64.tdx.CBuffer_tdx.Layout_sl_f64s_8_0tt(target("dx.CBuffer", target("dx.Layout", { double }, 8, 0)), i32)
-declare { float, float } @llvm.dx.resource.load.cbufferrow.2.f32.f32.tdx.CBuffer_tdx.Layout_sl_f32s_4_0tt(target("dx.CBuffer", target("dx.Layout", { float }, 4, 0)), i32)
+declare { double, double, double, double } @llvm.dx.resource.load.cbufferrow.4.f64.f64.f64.f64.tdx.CBuffer_sl_f64st(target("dx.CBuffer", <{ double }>), i32)
+declare { float, float } @llvm.dx.resource.load.cbufferrow.2.f32.f32.tdx.CBuffer_sl_f32st(target("dx.CBuffer", <{ float }>), i32)
diff --git a/llvm/test/CodeGen/DirectX/CBufferLoadLegacy.ll b/llvm/test/CodeGen/DirectX/CBufferLoadLegacy.ll
index d6906516b716d..dd40aa8d8d31c 100644
--- a/llvm/test/CodeGen/DirectX/CBufferLoadLegacy.ll
+++ b/llvm/test/CodeGen/DirectX/CBufferLoadLegacy.ll
@@ -8,12 +8,12 @@ declare void @f16_user(half)
; CHECK-LABEL: define void @loadf32
define void @loadf32() {
- %buffer = call target("dx.CBuffer", target("dx.Layout", {float}, 4, 0))
+ %buffer = call target("dx.CBuffer", <{ float }>)
@llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
; CHECK: [[DATA:%.*]] = call %dx.types.CBufRet.f32 @dx.op.cbufferLoadLegacy.f32(i32 59, %dx.types.Handle %{{.*}}, i32 0)
%load = call {float, float, float, float} @llvm.dx.resource.load.cbufferrow.4(
- target("dx.CBuffer", target("dx.Layout", {float}, 4, 0)) %buffer,
+ target("dx.CBuffer", <{ float }>) %buffer,
i32 0)
%data = extractvalue {float, float, float, float} %load, 0
@@ -27,12 +27,12 @@ define void @loadf32() {
; CHECK-LABEL: define void @loadf64
define void @loadf64() {
%buffer = call
- target("dx.CBuffer", target("dx.Layout", {double, double, double, double}, 64, 0, 8, 16, 24))
+ target("dx.CBuffer", <{ <4 x double> }>)
@llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
; CHECK: [[DATA:%.*]] = call %dx.types.CBufRet.f64 @dx.op.cbufferLoadLegacy.f64(i32 59, %dx.types.Handle %{{.*}}, i32 1)
%load = call {double, double} @llvm.dx.resource.load.cbufferrow.2(
- target("dx.CBuffer", target("dx.Layout", {double, double, double, double}, 64, 0, 8, 16, 24)) %buffer,
+ target("dx.CBuffer", <{ <4 x double> }>) %buffer,
i32 1)
%data = extractvalue {double, double} %load, 1
@@ -46,12 +46,12 @@ define void @loadf64() {
; CHECK-LABEL: define void @loadf16
define void @loadf16() {
%buffer = call
- target("dx.CBuffer", target("dx.Layout", {half}, 2, 0))
+ target("dx.CBuffer", <{ half }>)
@llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
; CHECK: [[DATA:%.*]] = call %dx.types.CBufRet.f16.8 @dx.op.cbufferLoadLegacy.f16(i32 59, %dx.types.Handle %{{.*}}, i32 0)
%load = call {half, half, half, half, half, half, half, half} @llvm.dx.resource.load.cbufferrow.8(
- target("dx.CBuffer", target("dx.Layout", {half}, 2, 0)) %buffer,
+ target("dx.CBuffer", <{ half }>) %buffer,
i32 0)
%data = extractvalue {half, half, half, half, half, half, half, half} %load, 0
diff --git a/llvm/test/CodeGen/DirectX/ContainerData/PSVResources-order.ll b/llvm/test/CodeGen/DirectX/ContainerData/PSVResources-order.ll
index bcf82a67a55df..5cd67be1a4a28 100644
--- a/llvm/test/CodeGen/DirectX/ContainerData/PSVResources-order.ll
+++ b/llvm/test/CodeGen/DirectX/ContainerData/PSVResources-order.ll
@@ -18,7 +18,7 @@ define void @main() #0 {
%srv0 = call target("dx.RawBuffer", i8, 0, 0)
@llvm.dx.resource.handlefrombinding.tdx.RawBuffer_i8_0_0t(
i32 1, i32 8, i32 1, i32 0, ptr null)
- %cbuf = call target("dx.CBuffer", target("dx.Layout", {float}, 4, 0))
+ %cbuf = call target("dx.CBuffer", <{ float }>)
@llvm.dx.resource.handlefrombinding(i32 3, i32 2, i32 1, i32 0, ptr null)
ret void
}
diff --git a/llvm/test/CodeGen/DirectX/ContainerData/PSVResources.ll b/llvm/test/CodeGen/DirectX/ContainerData/PSVResources.ll
index bea03102e4ccf..a1beccab68f5d 100644
--- a/llvm/test/CodeGen/DirectX/ContainerData/PSVResources.ll
+++ b/llvm/test/CodeGen/DirectX/ContainerData/PSVResources.ll
@@ -14,7 +14,7 @@ define void @main() #0 {
; CHECK: Kind: CBuffer
; CHECK: Flags:
; CHECK: UsedByAtomic64: false
- %cbuf = call target("dx.CBuffer", target("dx.Layout", {float}, 4, 0))
+ %cbuf = call target("dx.CBuffer", <{ float }>)
@llvm.dx.resource.handlefrombinding(i32 3, i32 2, i32 1, i32 0, ptr null)
; ByteAddressBuffer Buf : register(t8, space1)
diff --git a/llvm/test/CodeGen/DirectX/CreateHandleFromBinding.ll b/llvm/test/CodeGen/DirectX/CreateHandleFromBinding.ll
index 38f2de28dbe59..671fcef281314 100644
--- a/llvm/test/CodeGen/DirectX/CreateHandleFromBinding.ll
+++ b/llvm/test/CodeGen/DirectX/CreateHandleFromBinding.ll
@@ -72,7 +72,7 @@ define void @test_bindings() {
; CHECK: call %dx.types.Handle @dx.op.annotateHandle(i32 216, %dx.types.Handle [[BUF5]], %dx.types.ResourceProperties { i32 10, i32 1033 }) #[[#ATTR]]
; cbuffer cb0 : register(b0) { int4 i; float4 f; }
- %cb0 = call target("dx.CBuffer", target("dx.Layout", {<4 x i32>, <4 x float>}, 32, 0, 16))
+ %cb0 = call target("dx.CBuffer", <{ <4 x i32>, <4 x float> }>)
@llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
; CHECK: [[BUF6:%.*]] = call %dx.types.Handle @dx.op.createHandleFromBinding(i32 217, %dx.types.ResBind { i32 0, i32 0, i32 0, i8 2 }, i32 0, i1 false) #[[#ATTR]]
; CHECK: call %dx.types.Handle @dx.op.annotateHandle(i32 216, %dx.types.Handle [[BUF6]], %dx.types.ResourceProperties { i32 13, i32 32 }) #[[#ATTR]]
diff --git a/llvm/test/CodeGen/DirectX/ForwardHandleAccesses/cbuffer-access.ll b/llvm/test/CodeGen/DirectX/ForwardHandleAccesses/cbuffer-access.ll
index 26b157f35a3e4..d67486324d220 100644
--- a/llvm/test/CodeGen/DirectX/ForwardHandleAccesses/cbuffer-access.ll
+++ b/llvm/test/CodeGen/DirectX/ForwardHandleAccesses/cbuffer-access.ll
@@ -4,27 +4,27 @@
%__cblayout_CB2 = type <{ float }>
%struct.Scalars = type { float, i32, i32 }
- at CB.cb = local_unnamed_addr global target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 12, 0, 4, 8)) poison
- at CB2.cb = local_unnamed_addr global target("dx.CBuffer", target("dx.Layout", %__cblayout_CB2, 4, 0)) poison
+ at CB.cb = local_unnamed_addr global target("dx.CBuffer", %__cblayout_CB) poison
+ at CB2.cb = local_unnamed_addr global target("dx.CBuffer", %__cblayout_CB2) poison
define void @main() local_unnamed_addr #1 {
entry:
; CHECK: [[CB:%.*]] = tail call target({{.*}}) @llvm.dx.resource.handlefrombinding
- %h = tail call target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 12, 0, 4, 8)) @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
- store target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 12, 0, 4, 8)) %h, ptr @CB.cb, align 4
+ %h = tail call target("dx.CBuffer", %__cblayout_CB) @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
+ store target("dx.CBuffer", %__cblayout_CB) %h, ptr @CB.cb, align 4
%_ZL3Out_h.i.i = tail call target("dx.RawBuffer", %struct.Scalars, 1, 0) @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
; CHECK-NOT: load target({{.*}}), ptr @CB.cb
- %cb = load target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 12, 0, 4, 8)), ptr @CB.cb, align 4
+ %cb = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb, align 4
; CHECK: call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target({{.*}}) [[CB]], i32 0)
- %0 = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4(target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 12, 0, 4, 8)) %cb, i32 0)
+ %0 = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4(target("dx.CBuffer", %__cblayout_CB) %cb, i32 0)
%1 = extractvalue { float, float, float, float } %0, 0
call void @llvm.dx.resource.store.rawbuffer(target("dx.RawBuffer", %struct.Scalars, 1, 0) %_ZL3Out_h.i.i, i32 0, i32 0, float %1)
-
+
; CHECK: [[CB2:%.*]] = tail call target({{.*}}) @llvm.dx.resource.handlefromimplicitbinding
- %h2 = tail call target("dx.CBuffer", target("dx.Layout", %__cblayout_CB2, 4, 0)) @llvm.dx.resource.handlefromimplicitbinding(i32 100, i32 0, i32 1, i32 0, ptr null)
- store target("dx.CBuffer", target("dx.Layout", %__cblayout_CB2, 4, 0)) %h2, ptr @CB2.cb, align 4
+ %h2 = tail call target("dx.CBuffer", %__cblayout_CB2) @llvm.dx.resource.handlefromimplicitbinding(i32 100, i32 0, i32 1, i32 0, ptr null)
+ store target("dx.CBuffer", %__cblayout_CB2) %h2, ptr @CB2.cb, align 4
; CHECK-NOT: load target({{.*}}), ptr @CB2.cb
- %cb2 = load target("dx.CBuffer", target("dx.Layout", %__cblayout_CB2, 4, 0)), ptr @CB2.cb, align 4
+ %cb2 = load target("dx.CBuffer", %__cblayout_CB2), ptr @CB2.cb, align 4
ret void
}
diff --git a/llvm/test/CodeGen/DirectX/Metadata/cbuffer_metadata.ll b/llvm/test/CodeGen/DirectX/Metadata/cbuffer-layouttype.ll
similarity index 96%
rename from llvm/test/CodeGen/DirectX/Metadata/cbuffer_metadata.ll
rename to llvm/test/CodeGen/DirectX/Metadata/cbuffer-layouttype.ll
index 7ba2ed2988312..6595e51992b48 100644
--- a/llvm/test/CodeGen/DirectX/Metadata/cbuffer_metadata.ll
+++ b/llvm/test/CodeGen/DirectX/Metadata/cbuffer-layouttype.ll
@@ -1,3 +1,6 @@
+; TODO: Remove this test once we've updated the frontend to use explicit
+; padding. The cbuffer-metadata.ll test covers the newer logic.
+
; RUN: opt -S -dxil-translate-metadata < %s | FileCheck %s
; RUN: opt -S --passes="dxil-pretty-printer" < %s 2>&1 | FileCheck %s --check-prefix=PRINT
; RUN: llc %s --filetype=asm -o - < %s 2>&1 | FileCheck %s --check-prefixes=CHECK,PRINT
diff --git a/llvm/test/CodeGen/DirectX/Metadata/cbuffer-metadata.ll b/llvm/test/CodeGen/DirectX/Metadata/cbuffer-metadata.ll
new file mode 100644
index 0000000000000..6b90e17816991
--- /dev/null
+++ b/llvm/test/CodeGen/DirectX/Metadata/cbuffer-metadata.ll
@@ -0,0 +1,89 @@
+; RUN: opt -S -dxil-translate-metadata < %s | FileCheck %s
+; RUN: opt -S --passes="dxil-pretty-printer" < %s 2>&1 | FileCheck %s --check-prefix=PRINT
+; RUN: llc %s --filetype=asm -o - < %s 2>&1 | FileCheck %s --check-prefixes=CHECK,PRINT
+
+target triple = "dxil-pc-shadermodel6.6-compute"
+
+%__cblayout_CB1 = type <{ float, i32, double, <2 x i32> }>
+ at CB1.cb = global target("dx.CBuffer", %__cblayout_CB1) poison
+ at CB1.str = private unnamed_addr constant [4 x i8] c"CB1\00", align 1
+
+%__cblayout_CB2 = type <{ float, target("dx.Padding", 4), double, float, half, i16, i64, i32 }>
+ at CB2.cb = global target("dx.CBuffer", %__cblayout_CB2) poison
+ at CB2.str = private unnamed_addr constant [4 x i8] c"CB2\00", align 1
+
+%__cblayout_MyConstants = type <{
+ double, target("dx.Padding", 8),
+ <3 x float>, float,
+ <3 x double>, half, target("dx.Padding", 6),
+ <2 x double>,
+ float, <3 x half>, <3 x half>
+}>
+ at MyConstants.cb = global target("dx.CBuffer", %__cblayout_MyConstants) poison
+ at MyConstants.str = private unnamed_addr constant [12 x i8] c"MyConstants\00", align 1
+
+; PRINT:; Resource Bindings:
+; PRINT-NEXT:;
+; PRINT-NEXT:; Name Type Format Dim ID HLSL Bind Count
+; PRINT-NEXT:; ----
+; PRINT-NEXT:; CB1 cbuffer NA NA CB0 cb0 1
+; PRINT-NEXT:; CB2 cbuffer NA NA CB1 cb1 1
+; PRINT-NEXT:; MyConstants cbuffer NA NA CB2 cb5,space15 1
+
+define void @test() #0 {
+
+ ; cbuffer CB1 : register(b0) {
+ ; float a;
+ ; int b;
+ ; double c;
+ ; int2 d;
+ ; }
+ %CB1.cb_h = call target("dx.CBuffer", %__cblayout_CB1)
+ @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr @CB1.str)
+
+ ; cbuffer CB2 : register(b0) {
+ ; float a;
+ ; double b;
+ ; float c;
+ ; half d;
+ ; uint16_t e;
+ ; int64_t f;
+ ; int g;
+ ;}
+ %CB2.cb_h = call target("dx.CBuffer", %__cblayout_CB2)
+ @llvm.dx.resource.handlefrombinding(i32 0, i32 1, i32 1, i32 0, ptr @CB2.str)
+
+ ; cbuffer CB3 : register(b5) {
+ ; double B0;
+ ; float3 B1;
+ ; float B2;
+ ; double3 B3;
+ ; half B4;
+ ; double2 B5;
+ ; float B6;
+ ; half3 B7;
+ ; half3 B8;
+ ; }
+ %CB3.cb_h = call target("dx.CBuffer", %__cblayout_MyConstants)
+ @llvm.dx.resource.handlefrombinding(i32 15, i32 5, i32 1, i32 0, ptr @MyConstants.str)
+
+ ret void
+}
+
+attributes #0 = { noinline nounwind "hlsl.shader"="compute" }
+
+; CHECK: %CBuffer.CB1 = type { { float, i32, double, <2 x i32> } }
+; CHECK: %CBuffer.CB2 = type { { float, double, float, half, i16, i64, i32 } }
+; CHECK: %CBuffer.MyConstants = type { { double, <3 x float>, float, <3 x double>, half, <2 x double>, float, <3 x half>, <3 x half> } }
+
+; CHECK: @CB1 = external constant %CBuffer.CB1
+; CHECK: @CB2 = external constant %CBuffer.CB2
+; CHECK: @MyConstants = external constant %CBuffer.MyConstants
+
+; CHECK: !dx.resources = !{[[ResList:[!][0-9]+]]}
+
+; CHECK: [[ResList]] = !{null, null, [[CBList:[!][0-9]+]], null}
+; CHECK: [[CBList]] = !{![[CB1:[0-9]+]], ![[CB2:[0-9]+]], ![[MYCONSTANTS:[0-9]+]]}
+; CHECK: ![[CB1]] = !{i32 0, ptr @CB1, !"CB1", i32 0, i32 0, i32 1, i32 24, null}
+; CHECK: ![[CB2]] = !{i32 1, ptr @CB2, !"CB2", i32 0, i32 1, i32 1, i32 36, null}
+; CHECK: ![[MYCONSTANTS]] = !{i32 2, ptr @MyConstants, !"MyConstants", i32 15, i32 5, i32 1, i32 96, null}
diff --git a/llvm/test/CodeGen/DirectX/Metadata/cbuffer-only.ll b/llvm/test/CodeGen/DirectX/Metadata/cbuffer-only.ll
index e2a1c09c13038..0b454c12a74a2 100644
--- a/llvm/test/CodeGen/DirectX/Metadata/cbuffer-only.ll
+++ b/llvm/test/CodeGen/DirectX/Metadata/cbuffer-only.ll
@@ -7,7 +7,7 @@
target triple = "dxil-pc-shadermodel6.6-compute"
define void @cbuffer_is_only_binding() {
- %cbuf = call target("dx.CBuffer", target("dx.Layout", {float}, 4, 0))
+ %cbuf = call target("dx.CBuffer", <{ float }>)
@llvm.dx.resource.handlefrombinding(i32 1, i32 8, i32 1, i32 0, ptr null)
; CHECK: %CBuffer = type { float }
diff --git a/llvm/unittests/Analysis/DXILResourceTest.cpp b/llvm/unittests/Analysis/DXILResourceTest.cpp
index ee37fad04f389..8c3a2134ae0d6 100644
--- a/llvm/unittests/Analysis/DXILResourceTest.cpp
+++ b/llvm/unittests/Analysis/DXILResourceTest.cpp
@@ -369,10 +369,8 @@ TEST(DXILResource, AnnotationsAndMetadata) {
{
StructType *CBufStruct =
StructType::create(Context, {Floatx4Ty, Floatx4Ty}, "cb0");
- TargetExtType *CBufLayoutType =
- llvm::TargetExtType::get(Context, "dx.Layout", CBufStruct, {32, 0, 16});
ResourceTypeInfo RTI(
- llvm::TargetExtType::get(Context, "dx.CBuffer", CBufLayoutType));
+ llvm::TargetExtType::get(Context, "dx.CBuffer", CBufStruct));
EXPECT_EQ(RTI.getResourceClass(), ResourceClass::CBuffer);
EXPECT_EQ(RTI.getCBufferSize(DL), 32u);
EXPECT_EQ(RTI.getResourceKind(), ResourceKind::CBuffer);
>From a832f680521203456c7b4f093e4cda41f5dbc7fb Mon Sep 17 00:00:00 2001
From: Justin Bogner <mail at justinbogner.com>
Date: Thu, 18 Sep 2025 14:02:59 -0700
Subject: [PATCH 3/9] [AST] Give `CharUnits::operator%` a consistent type. NFC
Update the `operator%` overload that accepts `CharUnits` to return
`CharUnits` to match the other `operator%`. This is more logical than
returning an `int64` and cleans up users that want to continue to do
math with the result.
Many users of this were explicitly comparing against 0. I considered
updating these to compare against `CharUnits::Zero` or even introducing
an `explicit operator bool()`, but they all feel clearer if we update
them to use the existing `isMultipleOf()` function instead.
---
clang/include/clang/AST/CharUnits.h | 6 +++---
clang/lib/AST/APValue.cpp | 2 +-
clang/lib/AST/RecordLayoutBuilder.cpp | 9 ++++-----
clang/lib/CodeGen/CGAtomic.cpp | 2 +-
clang/lib/CodeGen/CGExprConstant.cpp | 2 +-
clang/lib/CodeGen/CGObjCMac.cpp | 2 +-
clang/lib/CodeGen/CGRecordLayoutBuilder.cpp | 12 ++++++------
clang/lib/Sema/SemaChecking.cpp | 2 +-
clang/lib/StaticAnalyzer/Core/Store.cpp | 2 +-
9 files changed, 19 insertions(+), 20 deletions(-)
diff --git a/clang/include/clang/AST/CharUnits.h b/clang/include/clang/AST/CharUnits.h
index c06354451dfbe..bd7457f1caeaa 100644
--- a/clang/include/clang/AST/CharUnits.h
+++ b/clang/include/clang/AST/CharUnits.h
@@ -141,7 +141,7 @@ namespace clang {
/// Among other things, this promises that
/// self.alignTo(N) will just return self.
bool isMultipleOf(CharUnits N) const {
- return (*this % N) == 0;
+ return (*this % N) == CharUnits::Zero();
}
// Arithmetic operators.
@@ -165,8 +165,8 @@ namespace clang {
CharUnits operator% (QuantityType N) const {
return CharUnits(Quantity % N);
}
- QuantityType operator% (const CharUnits &Other) const {
- return Quantity % Other.Quantity;
+ CharUnits operator% (const CharUnits &Other) const {
+ return CharUnits(Quantity % Other.Quantity);
}
CharUnits operator+ (const CharUnits &Other) const {
return CharUnits(Quantity + Other.Quantity);
diff --git a/clang/lib/AST/APValue.cpp b/clang/lib/AST/APValue.cpp
index 7173c2a0e1a2a..2e1c8eb3726cf 100644
--- a/clang/lib/AST/APValue.cpp
+++ b/clang/lib/AST/APValue.cpp
@@ -784,7 +784,7 @@ void APValue::printPretty(raw_ostream &Out, const PrintingPolicy &Policy,
if (!O.isZero()) {
if (IsReference)
Out << "*(";
- if (S.isZero() || O % S) {
+ if (S.isZero() || !O.isMultipleOf(S)) {
Out << "(char*)";
S = CharUnits::One();
}
diff --git a/clang/lib/AST/RecordLayoutBuilder.cpp b/clang/lib/AST/RecordLayoutBuilder.cpp
index 43f4e070748bb..00b938bdf308d 100644
--- a/clang/lib/AST/RecordLayoutBuilder.cpp
+++ b/clang/lib/AST/RecordLayoutBuilder.cpp
@@ -2087,9 +2087,8 @@ void ItaniumRecordLayoutBuilder::LayoutField(const FieldDecl *D,
if (InsertExtraPadding) {
CharUnits ASanAlignment = CharUnits::fromQuantity(8);
CharUnits ExtraSizeForAsan = ASanAlignment;
- if (FieldSize % ASanAlignment)
- ExtraSizeForAsan +=
- ASanAlignment - CharUnits::fromQuantity(FieldSize % ASanAlignment);
+ if (!FieldSize.isMultipleOf(ASanAlignment))
+ ExtraSizeForAsan += ASanAlignment - (FieldSize % ASanAlignment);
EffectiveFieldSize = FieldSize = FieldSize + ExtraSizeForAsan;
}
@@ -2119,10 +2118,10 @@ void ItaniumRecordLayoutBuilder::LayoutField(const FieldDecl *D,
if (RD->hasAttr<PackedAttr>() || !MaxFieldAlignment.isZero())
if (FieldAlign < OriginalFieldAlign)
if (D->getType()->isRecordType()) {
- // If the offset is a multiple of the alignment of
+ // If the offset is not a multiple of the alignment of
// the type, raise the warning.
// TODO: Takes no account the alignment of the outer struct
- if (FieldOffset % OriginalFieldAlign != 0)
+ if (!FieldOffset.isMultipleOf(OriginalFieldAlign))
Diag(D->getLocation(), diag::warn_unaligned_access)
<< Context.getCanonicalTagType(RD) << D->getName()
<< D->getType();
diff --git a/clang/lib/CodeGen/CGAtomic.cpp b/clang/lib/CodeGen/CGAtomic.cpp
index eeb0fd6412946..4a3446abcc78f 100644
--- a/clang/lib/CodeGen/CGAtomic.cpp
+++ b/clang/lib/CodeGen/CGAtomic.cpp
@@ -880,7 +880,7 @@ RValue CodeGenFunction::EmitAtomicExpr(AtomicExpr *E) {
CharUnits MaxInlineWidth =
getContext().toCharUnitsFromBits(MaxInlineWidthInBits);
DiagnosticsEngine &Diags = CGM.getDiags();
- bool Misaligned = (Ptr.getAlignment() % TInfo.Width) != 0;
+ bool Misaligned = !Ptr.getAlignment().isMultipleOf(TInfo.Width);
bool Oversized = getContext().toBits(TInfo.Width) > MaxInlineWidthInBits;
if (Misaligned) {
Diags.Report(E->getBeginLoc(), diag::warn_atomic_op_misaligned)
diff --git a/clang/lib/CodeGen/CGExprConstant.cpp b/clang/lib/CodeGen/CGExprConstant.cpp
index b44dd9ecc717e..6407afc3d9447 100644
--- a/clang/lib/CodeGen/CGExprConstant.cpp
+++ b/clang/lib/CodeGen/CGExprConstant.cpp
@@ -433,7 +433,7 @@ llvm::Constant *ConstantAggregateBuilder::buildFrom(
// All remaining elements must be the same type.
if (Elems[I]->getType() != CommonType ||
- Offset(I) % ElemSize != 0) {
+ !Offset(I).isMultipleOf(ElemSize)) {
CanEmitArray = false;
break;
}
diff --git a/clang/lib/CodeGen/CGObjCMac.cpp b/clang/lib/CodeGen/CGObjCMac.cpp
index 60f30a1334d6d..dbcce9b86ad52 100644
--- a/clang/lib/CodeGen/CGObjCMac.cpp
+++ b/clang/lib/CodeGen/CGObjCMac.cpp
@@ -5367,7 +5367,7 @@ IvarLayoutBuilder::buildBitmap(CGObjCCommonMac &CGObjC,
// Ignore scan requests that don't start at an even multiple of the
// word size. We can't encode them.
- if ((beginOfScan % WordSize) != 0)
+ if (!beginOfScan.isMultipleOf(WordSize))
continue;
// Ignore scan requests that start before the instance start.
diff --git a/clang/lib/CodeGen/CGRecordLayoutBuilder.cpp b/clang/lib/CodeGen/CGRecordLayoutBuilder.cpp
index 5f6136c917ac2..e9205c68c2812 100644
--- a/clang/lib/CodeGen/CGRecordLayoutBuilder.cpp
+++ b/clang/lib/CodeGen/CGRecordLayoutBuilder.cpp
@@ -369,11 +369,11 @@ void CGRecordLowering::lowerUnion(bool isNonVirtualBaseType) {
appendPaddingBytes(LayoutSize - getSize(StorageType));
// Set packed if we need it.
const auto StorageAlignment = getAlignment(StorageType);
- assert((Layout.getSize() % StorageAlignment == 0 ||
- Layout.getDataSize() % StorageAlignment) &&
+ assert((Layout.getSize().isMultipleOf(StorageAlignment) ||
+ !Layout.getDataSize().isMultipleOf(StorageAlignment)) &&
"Union's standard layout and no_unique_address layout must agree on "
"packedness");
- if (Layout.getDataSize() % StorageAlignment)
+ if (!Layout.getDataSize().isMultipleOf(StorageAlignment))
Packed = true;
}
@@ -977,7 +977,7 @@ void CGRecordLowering::determinePacked(bool NVBaseType) {
continue;
// If any member falls at an offset that it not a multiple of its alignment,
// then the entire record must be packed.
- if (Member.Offset % getAlignment(Member.Data))
+ if (!Member.Offset.isMultipleOf(getAlignment(Member.Data)))
Packed = true;
if (Member.Offset < NVSize)
NVAlignment = std::max(NVAlignment, getAlignment(Member.Data));
@@ -985,12 +985,12 @@ void CGRecordLowering::determinePacked(bool NVBaseType) {
}
// If the size of the record (the capstone's offset) is not a multiple of the
// record's alignment, it must be packed.
- if (Members.back().Offset % Alignment)
+ if (!Members.back().Offset.isMultipleOf(Alignment))
Packed = true;
// If the non-virtual sub-object is not a multiple of the non-virtual
// sub-object's alignment, it must be packed. We cannot have a packed
// non-virtual sub-object and an unpacked complete object or vise versa.
- if (NVSize % NVAlignment)
+ if (!NVSize.isMultipleOf(NVAlignment))
Packed = true;
// Update the alignment of the sentinel.
if (!Packed)
diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index 39c3aa2243338..8633aaf8531d9 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -15946,7 +15946,7 @@ void Sema::RefersToMemberWithReducedAlignment(
}
// Check if the synthesized offset fulfills the alignment.
- if (Offset % ExpectedAlignment != 0 ||
+ if (!Offset.isMultipleOf(ExpectedAlignment) ||
// It may fulfill the offset it but the effective alignment may still be
// lower than the expected expression alignment.
CompleteObjectAlignment < ExpectedAlignment) {
diff --git a/clang/lib/StaticAnalyzer/Core/Store.cpp b/clang/lib/StaticAnalyzer/Core/Store.cpp
index 971e6bc798837..b609f36ae7e89 100644
--- a/clang/lib/StaticAnalyzer/Core/Store.cpp
+++ b/clang/lib/StaticAnalyzer/Core/Store.cpp
@@ -210,7 +210,7 @@ std::optional<const MemRegion *> StoreManager::castRegion(const MemRegion *R,
// Is the offset a multiple of the size? If so, we can layer the
// ElementRegion (with elementType == PointeeTy) directly on top of
// the base region.
- if (off % pointeeTySize == 0) {
+ if (off.isMultipleOf(pointeeTySize)) {
newIndex = off / pointeeTySize;
newSuperR = baseR;
}
>From 9d3ee226f0685d1ff8bf5e6c52966ce5246f6a57 Mon Sep 17 00:00:00 2001
From: Justin Bogner <mail at justinbogner.com>
Date: Tue, 19 Aug 2025 13:46:38 -0600
Subject: [PATCH 4/9] [DirectX] Make a test a bit more readable. NFC
CHECK-lines ignore whitespace, so we can remove some here and make this
a bit easier to read.
---
.../CodeGen/DirectX/Metadata/cbuffer-layouttype.ll | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/llvm/test/CodeGen/DirectX/Metadata/cbuffer-layouttype.ll b/llvm/test/CodeGen/DirectX/Metadata/cbuffer-layouttype.ll
index 6595e51992b48..85952c9ae4e83 100644
--- a/llvm/test/CodeGen/DirectX/Metadata/cbuffer-layouttype.ll
+++ b/llvm/test/CodeGen/DirectX/Metadata/cbuffer-layouttype.ll
@@ -22,11 +22,11 @@ target triple = "dxil-pc-shadermodel6.6-compute"
; PRINT:; Resource Bindings:
; PRINT-NEXT:;
-; PRINT-NEXT:; Name Type Format Dim ID HLSL Bind Count
-; PRINT-NEXT:; ------------------------------ ---------- ------- ----------- ------- -------------- ------
-; PRINT-NEXT:; CB1 cbuffer NA NA CB0 cb0 1
-; PRINT-NEXT:; CB2 cbuffer NA NA CB1 cb1 1
-; PRINT-NEXT:; MyConstants cbuffer NA NA CB2 cb5,space15 1
+; PRINT-NEXT:; Name Type Format Dim ID HLSL Bind Count
+; PRINT-NEXT:; ----
+; PRINT-NEXT:; CB1 cbuffer NA NA CB0 cb0 1
+; PRINT-NEXT:; CB2 cbuffer NA NA CB1 cb1 1
+; PRINT-NEXT:; MyConstants cbuffer NA NA CB2 cb5,space15 1
define void @test() #0 {
>From 5797e1849d99d0814f1dbbf16920eb92a28201b2 Mon Sep 17 00:00:00 2001
From: Justin Bogner <mail at justinbogner.com>
Date: Tue, 9 Sep 2025 14:08:37 -0700
Subject: [PATCH 5/9] [DirectX] Fix crash when naming buffers of arrays
DXILResource was falling over trying to name a resource type that
contained an array, such as `StructuredBuffer<float[3][2]>`. Handle this
by walking through array types to gather the dimensions.
---
llvm/lib/Analysis/DXILResource.cpp | 8 ++++++++
llvm/test/CodeGen/DirectX/Metadata/resource-symbols.ll | 9 ++++++++-
2 files changed, 16 insertions(+), 1 deletion(-)
diff --git a/llvm/lib/Analysis/DXILResource.cpp b/llvm/lib/Analysis/DXILResource.cpp
index f9bf09262dd1f..6f19a68dcd194 100644
--- a/llvm/lib/Analysis/DXILResource.cpp
+++ b/llvm/lib/Analysis/DXILResource.cpp
@@ -255,6 +255,12 @@ static void formatTypeName(SmallString<64> &Dest, StringRef Name,
if (!ContainedType)
return;
+ SmallVector<uint64_t> ArrayDimensions;
+ while (ArrayType *AT = dyn_cast<ArrayType>(ContainedType)) {
+ ArrayDimensions.push_back(AT->getNumElements());
+ ContainedType = AT->getElementType();
+ }
+
StringRef ElementName;
ElementType ET = toDXILElementType(ContainedType, IsSigned);
if (ET != ElementType::Invalid) {
@@ -271,6 +277,8 @@ static void formatTypeName(SmallString<64> &Dest, StringRef Name,
DestStream << "<" << ElementName;
if (const FixedVectorType *VTy = dyn_cast<FixedVectorType>(ContainedType))
DestStream << VTy->getNumElements();
+ for (uint64_t Dim : ArrayDimensions)
+ DestStream << "[" << Dim << "]";
DestStream << ">";
}
diff --git a/llvm/test/CodeGen/DirectX/Metadata/resource-symbols.ll b/llvm/test/CodeGen/DirectX/Metadata/resource-symbols.ll
index 4f13f4789cd66..56798c8382d45 100644
--- a/llvm/test/CodeGen/DirectX/Metadata/resource-symbols.ll
+++ b/llvm/test/CodeGen/DirectX/Metadata/resource-symbols.ll
@@ -28,6 +28,11 @@ define void @test() {
@llvm.dx.resource.handlefrombinding(i32 0, i32 10, i32 1, i32 0, ptr @SB.str)
; CHECK: %"StructuredBuffer<struct.S>" = type { %struct.S }
+ ; StructuredBuffer<float[3][2]>
+ %struct1 = call target("dx.RawBuffer", [3 x [2 x float]], 0, 0)
+ @llvm.dx.resource.handlefrombinding(i32 0, i32 12, i32 1, i32 0, ptr null)
+ ; CHECK: %"StructuredBuffer<float[3][2]>" = type { [3 x [2 x float]] }
+
; ByteAddressBuffer
%byteaddr = call target("dx.RawBuffer", i8, 0, 0)
@llvm.dx.resource.handlefrombinding(i32 0, i32 20, i32 1, i32 0, ptr null)
@@ -40,12 +45,14 @@ define void @test() {
; CHECK-NEXT: @[[T1:.*]] = external constant %"Buffer<int32_t>"
; CHECK-NEXT: @[[T2:.*]] = external constant %"Buffer<uint32_t3>"
; CHECK-NEXT: @[[S0:.*]] = external constant %"StructuredBuffer<struct.S>"
+; CHECK-NEXT: @[[S1:.*]] = external constant %"StructuredBuffer<float[3][2]>"
; CHECK-NEXT: @[[B0:.*]] = external constant %ByteAddressBuffer
; CHECK: !{i32 0, ptr @[[T0]], !"A"
; CHECK: !{i32 1, ptr @[[T1]], !""
; CHECK: !{i32 2, ptr @[[T2]], !""
; CHECK: !{i32 3, ptr @[[S0]], !"SB"
-; CHECK: !{i32 4, ptr @[[B0]], !""
+; CHECK: !{i32 4, ptr @[[S1]], !""
+; CHECK: !{i32 5, ptr @[[B0]], !""
attributes #0 = { nocallback nofree nosync nounwind willreturn memory(none) }
>From 030d8cb65d4b438c1d3098c6d5efaadbc800db4d Mon Sep 17 00:00:00 2001
From: Justin Bogner <mail at justinbogner.com>
Date: Wed, 11 Jun 2025 16:21:41 -0400
Subject: [PATCH 6/9] wip: Update DXILCBufferAccess to padding approach
---
clang/lib/CodeGen/TargetInfo.h | 14 ++
clang/lib/CodeGen/Targets/DirectX.cpp | 13 ++
clang/lib/CodeGen/Targets/SPIR.cpp | 14 ++
llvm/include/llvm/Frontend/HLSL/CBuffer.h | 6 +-
llvm/lib/Frontend/HLSL/CBuffer.cpp | 35 ++-
llvm/lib/IR/Type.cpp | 4 +
llvm/lib/Target/DirectX/DXILCBufferAccess.cpp | 93 +-------
.../DirectX/CBufferAccess/array-typedgep.ll | 16 +-
.../CodeGen/DirectX/CBufferAccess/arrays.ll | 97 ++++----
.../CodeGen/DirectX/CBufferAccess/float.ll | 6 +-
.../DirectX/CBufferAccess/gep-ce-two-uses.ll | 18 +-
.../CodeGen/DirectX/CBufferAccess/memcpy.ll | 216 ------------------
.../CodeGen/DirectX/CBufferAccess/scalars.ll | 34 +--
.../CodeGen/DirectX/CBufferAccess/vectors.ll | 36 +--
14 files changed, 179 insertions(+), 423 deletions(-)
delete mode 100644 llvm/test/CodeGen/DirectX/CBufferAccess/memcpy.ll
diff --git a/clang/lib/CodeGen/TargetInfo.h b/clang/lib/CodeGen/TargetInfo.h
index d0edae1295094..8b59fde4b4120 100644
--- a/clang/lib/CodeGen/TargetInfo.h
+++ b/clang/lib/CodeGen/TargetInfo.h
@@ -448,6 +448,20 @@ class TargetCodeGenInfo {
return nullptr;
}
+ virtual llvm::Type *
+ getHLSLPadding(CodeGenModule &CGM, CharUnits NumBytes) const {
+ return llvm::ArrayType::get(llvm::Type::getInt8Ty(CGM.getLLVMContext()),
+ NumBytes.getQuantity());
+ }
+
+ virtual bool isHLSLPadding(llvm::Type *Ty) const {
+ // TODO: Do we actually want to default these functions like this?
+ if (auto *AT = dyn_cast<llvm::ArrayType>(Ty))
+ if (AT->getElementType() == llvm::Type::getInt8Ty(Ty->getContext()))
+ return true;
+ return false;
+ }
+
// Set the Branch Protection Attributes of the Function accordingly to the
// BPI. Remove attributes that contradict with current BPI.
static void
diff --git a/clang/lib/CodeGen/Targets/DirectX.cpp b/clang/lib/CodeGen/Targets/DirectX.cpp
index b4cebb9a32aca..d44e531dacdff 100644
--- a/clang/lib/CodeGen/Targets/DirectX.cpp
+++ b/clang/lib/CodeGen/Targets/DirectX.cpp
@@ -32,6 +32,19 @@ class DirectXTargetCodeGenInfo : public TargetCodeGenInfo {
llvm::Type *
getHLSLType(CodeGenModule &CGM, const Type *T,
const SmallVector<int32_t> *Packoffsets = nullptr) const override;
+
+ llvm::Type *getHLSLPadding(CodeGenModule &CGM,
+ CharUnits NumBytes) const override {
+ unsigned Size = NumBytes.getQuantity();
+ return llvm::TargetExtType::get(CGM.getLLVMContext(), "dx.Padding", {},
+ {Size});
+ }
+
+ bool isHLSLPadding(llvm::Type *Ty) const override {
+ if (auto *TET = dyn_cast<llvm::TargetExtType>(Ty))
+ return TET->getName() == "dx.Padding";
+ return false;
+ }
};
llvm::Type *DirectXTargetCodeGenInfo::getHLSLType(
diff --git a/clang/lib/CodeGen/Targets/SPIR.cpp b/clang/lib/CodeGen/Targets/SPIR.cpp
index 2e3fc53c58edc..a945f203c15e5 100644
--- a/clang/lib/CodeGen/Targets/SPIR.cpp
+++ b/clang/lib/CodeGen/Targets/SPIR.cpp
@@ -56,6 +56,20 @@ class CommonSPIRTargetCodeGenInfo : public TargetCodeGenInfo {
llvm::Type *
getHLSLType(CodeGenModule &CGM, const Type *Ty,
const SmallVector<int32_t> *Packoffsets = nullptr) const override;
+
+ llvm::Type *
+ getHLSLPadding(CodeGenModule &CGM, CharUnits NumBytes) const override {
+ unsigned Size = NumBytes.getQuantity();
+ return llvm::TargetExtType::get(CGM.getLLVMContext(), "spirv.Padding", {},
+ {Size});
+ }
+
+ bool isHLSLPadding(llvm::Type *Ty) const override {
+ if (auto *TET = dyn_cast<llvm::TargetExtType>(Ty))
+ return TET->getName() == "spirv.Padding";
+ return false;
+ }
+
llvm::Type *getSPIRVImageTypeFromHLSLResource(
const HLSLAttributedResourceType::Attributes &attributes,
QualType SampledType, CodeGenModule &CGM) const;
diff --git a/llvm/include/llvm/Frontend/HLSL/CBuffer.h b/llvm/include/llvm/Frontend/HLSL/CBuffer.h
index 694a7fa854576..f4e232ffe1745 100644
--- a/llvm/include/llvm/Frontend/HLSL/CBuffer.h
+++ b/llvm/include/llvm/Frontend/HLSL/CBuffer.h
@@ -46,7 +46,8 @@ class CBufferMetadata {
CBufferMetadata(NamedMDNode *MD) : MD(MD) {}
public:
- static std::optional<CBufferMetadata> get(Module &M);
+ static std::optional<CBufferMetadata>
+ get(Module &M, llvm::function_ref<bool(Type *)> IsPadding);
using iterator = SmallVector<CBufferMapping>::iterator;
iterator begin() { return Mappings.begin(); }
@@ -55,9 +56,6 @@ class CBufferMetadata {
void eraseFromModule();
};
-APInt translateCBufArrayOffset(const DataLayout &DL, APInt Offset,
- ArrayType *Ty);
-
} // namespace hlsl
} // namespace llvm
diff --git a/llvm/lib/Frontend/HLSL/CBuffer.cpp b/llvm/lib/Frontend/HLSL/CBuffer.cpp
index 407b6ad6d5a7e..329357ac8f08e 100644
--- a/llvm/lib/Frontend/HLSL/CBuffer.cpp
+++ b/llvm/lib/Frontend/HLSL/CBuffer.cpp
@@ -15,25 +15,28 @@
using namespace llvm;
using namespace llvm::hlsl;
-static size_t getMemberOffset(GlobalVariable *Handle, size_t Index) {
+static SmallVector<size_t>
+getMemberOffsets(const DataLayout &DL, GlobalVariable *Handle,
+ llvm::function_ref<bool(Type *)> IsPadding) {
+ SmallVector<size_t> Offsets;
+
auto *HandleTy = cast<TargetExtType>(Handle->getValueType());
assert((HandleTy->getName().ends_with(".CBuffer") ||
HandleTy->getName() == "spirv.VulkanBuffer") &&
"Not a cbuffer type");
assert(HandleTy->getNumTypeParameters() == 1 && "Expected layout type");
+ auto *LayoutTy = cast<StructType>(HandleTy->getTypeParameter(0));
- auto *LayoutTy = cast<TargetExtType>(HandleTy->getTypeParameter(0));
- assert(LayoutTy->getName().ends_with(".Layout") && "Not a layout type");
-
- // Skip the "size" parameter.
- size_t ParamIndex = Index + 1;
- assert(LayoutTy->getNumIntParameters() > ParamIndex &&
- "Not enough parameters");
+ const StructLayout *SL = DL.getStructLayout(LayoutTy);
+ for (int I = 0, E = LayoutTy->getNumElements(); I < E; ++I)
+ if (!IsPadding(LayoutTy->getElementType(I)))
+ Offsets.push_back(SL->getElementOffset(I));
- return LayoutTy->getIntParameter(ParamIndex);
+ return Offsets;
}
-std::optional<CBufferMetadata> CBufferMetadata::get(Module &M) {
+std::optional<CBufferMetadata>
+CBufferMetadata::get(Module &M, llvm::function_ref<bool(Type *)> IsPadding) {
NamedMDNode *CBufMD = M.getNamedMetadata("hlsl.cbs");
if (!CBufMD)
return std::nullopt;
@@ -47,13 +50,16 @@ std::optional<CBufferMetadata> CBufferMetadata::get(Module &M) {
cast<ValueAsMetadata>(MD->getOperand(0))->getValue());
CBufferMapping &Mapping = Result->Mappings.emplace_back(Handle);
+ SmallVector<size_t> MemberOffsets =
+ getMemberOffsets(M.getDataLayout(), Handle, IsPadding);
+
for (int I = 1, E = MD->getNumOperands(); I < E; ++I) {
Metadata *OpMD = MD->getOperand(I);
// Some members may be null if they've been optimized out.
if (!OpMD)
continue;
auto *V = cast<GlobalVariable>(cast<ValueAsMetadata>(OpMD)->getValue());
- Mapping.Members.emplace_back(V, getMemberOffset(Handle, I - 1));
+ Mapping.Members.emplace_back(V, MemberOffsets[I - 1]);
}
}
@@ -64,10 +70,3 @@ void CBufferMetadata::eraseFromModule() {
// Remove the cbs named metadata
MD->eraseFromParent();
}
-
-APInt hlsl::translateCBufArrayOffset(const DataLayout &DL, APInt Offset,
- ArrayType *Ty) {
- int64_t TypeSize = DL.getTypeSizeInBits(Ty->getElementType()) / 8;
- int64_t RoundUp = alignTo(TypeSize, Align(CBufferRowSizeInBytes));
- return Offset.udiv(TypeSize) * RoundUp;
-}
diff --git a/llvm/lib/IR/Type.cpp b/llvm/lib/IR/Type.cpp
index 0e9535d24a4cc..b060a6c4f3bf6 100644
--- a/llvm/lib/IR/Type.cpp
+++ b/llvm/lib/IR/Type.cpp
@@ -1008,6 +1008,10 @@ static TargetTypeInfo getTargetTypeInfo(const TargetExtType *Ty) {
}
if (Name == "spirv.IntegralConstant" || Name == "spirv.Literal")
return TargetTypeInfo(Type::getVoidTy(C));
+ if (Name == "spirv.Padding")
+ return TargetTypeInfo(
+ ArrayType::get(Type::getInt8Ty(C), Ty->getIntParameter(0)),
+ TargetExtType::CanBeGlobal);
if (Name.starts_with("spirv."))
return TargetTypeInfo(PointerType::get(C, 0), TargetExtType::HasZeroInit,
TargetExtType::CanBeGlobal,
diff --git a/llvm/lib/Target/DirectX/DXILCBufferAccess.cpp b/llvm/lib/Target/DirectX/DXILCBufferAccess.cpp
index 44277971acd60..e6ba437ce417e 100644
--- a/llvm/lib/Target/DirectX/DXILCBufferAccess.cpp
+++ b/llvm/lib/Target/DirectX/DXILCBufferAccess.cpp
@@ -8,6 +8,7 @@
#include "DXILCBufferAccess.h"
#include "DirectX.h"
+#include "llvm/Analysis/DXILResource.h"
#include "llvm/Frontend/HLSL/CBuffer.h"
#include "llvm/Frontend/HLSL/HLSLResource.h"
#include "llvm/IR/IRBuilder.h"
@@ -97,10 +98,6 @@ struct CBufferResource {
(void)Success;
assert(Success && "Offsets into cbuffer globals must be constant");
- if (auto *ATy = dyn_cast<ArrayType>(Member->getValueType()))
- ConstantOffset =
- hlsl::translateCBufArrayOffset(DL, ConstantOffset, ATy);
-
return ConstantOffset.getZExtValue();
}
@@ -194,88 +191,14 @@ static void replaceLoad(LoadInst *LI, CBufferResource &CBR,
DeadInsts.push_back(LI);
}
-/// This function recursively copies N array elements from the cbuffer resource
-/// CBR to the MemCpy Destination. Recursion is used to unravel multidimensional
-/// arrays into a sequence of scalar/vector extracts and stores.
-static void copyArrayElemsForMemCpy(IRBuilder<> &Builder, MemCpyInst *MCI,
- CBufferResource &CBR, ArrayType *ArrTy,
- size_t ArrOffset, size_t N,
- const Twine &Name = "") {
- const DataLayout &DL = MCI->getDataLayout();
- Type *ElemTy = ArrTy->getElementType();
- size_t ElemTySize = DL.getTypeAllocSize(ElemTy);
- for (unsigned I = 0; I < N; ++I) {
- size_t Offset = ArrOffset + I * ElemTySize;
-
- // Recursively copy nested arrays
- if (ArrayType *ElemArrTy = dyn_cast<ArrayType>(ElemTy)) {
- copyArrayElemsForMemCpy(Builder, MCI, CBR, ElemArrTy, Offset,
- ElemArrTy->getNumElements(), Name);
- continue;
- }
-
- // Load CBuffer value and store it in Dest
- APInt CBufArrayOffset(
- DL.getIndexTypeSizeInBits(MCI->getSource()->getType()), Offset);
- CBufArrayOffset =
- hlsl::translateCBufArrayOffset(DL, CBufArrayOffset, ArrTy);
- Value *CBufferVal =
- CBR.loadValue(Builder, ElemTy, CBufArrayOffset.getZExtValue(), Name);
- Value *GEP =
- Builder.CreateInBoundsGEP(Builder.getInt8Ty(), MCI->getDest(),
- {Builder.getInt32(Offset)}, Name + ".dest");
- Builder.CreateStore(CBufferVal, GEP, MCI->isVolatile());
- }
-}
-
-/// Replace memcpy from a cbuffer global with a memcpy from the cbuffer handle
-/// itself. Assumes the cbuffer global is an array, and the length of bytes to
-/// copy is divisible by array element allocation size.
-/// The memcpy source must also be a direct cbuffer global reference, not a GEP.
-static void replaceMemCpy(MemCpyInst *MCI, CBufferResource &CBR) {
-
- ArrayType *ArrTy = dyn_cast<ArrayType>(CBR.getValueType());
- assert(ArrTy && "MemCpy lowering is only supported for array types");
-
- // This assumption vastly simplifies the implementation
- if (MCI->getSource() != CBR.Member)
- reportFatalUsageError(
- "Expected MemCpy source to be a cbuffer global variable");
-
- ConstantInt *Length = dyn_cast<ConstantInt>(MCI->getLength());
- uint64_t ByteLength = Length->getZExtValue();
-
- // If length to copy is zero, no memcpy is needed
- if (ByteLength == 0) {
- MCI->eraseFromParent();
- return;
- }
-
- const DataLayout &DL = CBR.getDataLayout();
-
- Type *ElemTy = ArrTy->getElementType();
- size_t ElemSize = DL.getTypeAllocSize(ElemTy);
- assert(ByteLength % ElemSize == 0 &&
- "Length of bytes to MemCpy must be divisible by allocation size of "
- "source/destination array elements");
- size_t ElemsToCpy = ByteLength / ElemSize;
-
- IRBuilder<> Builder(MCI);
- CBR.createAndSetCurrentHandle(Builder);
-
- copyArrayElemsForMemCpy(Builder, MCI, CBR, ArrTy, 0, ElemsToCpy,
- "memcpy." + MCI->getDest()->getName() + "." +
- MCI->getSource()->getName());
-
- MCI->eraseFromParent();
-}
-
static void replaceAccessesWithHandle(CBufferResource &CBR) {
SmallVector<WeakTrackingVH> DeadInsts;
SmallVector<User *> ToProcess{CBR.users()};
while (!ToProcess.empty()) {
User *Cur = ToProcess.pop_back_val();
+ assert(!isa<MemCpyInst>(Cur) &&
+ "memcpy should have been removed in an earlier pass");
// If we have a load instruction, replace the access.
if (auto *LI = dyn_cast<LoadInst>(Cur)) {
@@ -283,13 +206,6 @@ static void replaceAccessesWithHandle(CBufferResource &CBR) {
continue;
}
- // If we have a memcpy instruction, replace it with multiple accesses and
- // subsequent stores to the destination
- if (auto *MCI = dyn_cast<MemCpyInst>(Cur)) {
- replaceMemCpy(MCI, CBR);
- continue;
- }
-
// Otherwise, walk users looking for a load...
if (isa<GetElementPtrInst>(Cur) || isa<GEPOperator>(Cur)) {
ToProcess.append(Cur->user_begin(), Cur->user_end());
@@ -302,7 +218,8 @@ static void replaceAccessesWithHandle(CBufferResource &CBR) {
}
static bool replaceCBufferAccesses(Module &M) {
- std::optional<hlsl::CBufferMetadata> CBufMD = hlsl::CBufferMetadata::get(M);
+ std::optional<hlsl::CBufferMetadata> CBufMD = hlsl::CBufferMetadata::get(
+ M, [](Type *Ty) { return isa<llvm::dxil::PaddingExtType>(Ty); });
if (!CBufMD)
return false;
diff --git a/llvm/test/CodeGen/DirectX/CBufferAccess/array-typedgep.ll b/llvm/test/CodeGen/DirectX/CBufferAccess/array-typedgep.ll
index 52ad0f3df1aba..10ea19df1d177 100644
--- a/llvm/test/CodeGen/DirectX/CBufferAccess/array-typedgep.ll
+++ b/llvm/test/CodeGen/DirectX/CBufferAccess/array-typedgep.ll
@@ -3,24 +3,24 @@
; cbuffer CB : register(b0) {
; float a1[3];
; }
-%__cblayout_CB = type <{ [3 x float] }>
+%__cblayout_CB = type <{ [2 x <{ float, [12 x i8] }>], float }>
- at CB.cb = global target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 36, 0)) poison
+ at CB.cb = global target("dx.CBuffer", %__cblayout_CB) poison
; CHECK: @CB.cb =
; CHECK-NOT: external {{.*}} addrspace(2) global
- at a1 = external addrspace(2) global [3 x float], align 4
+ at a1 = external addrspace(2) global <{ [2 x <{ float, [12 x i8] }>], float }>, align 4
; CHECK: define void @f
define void @f(ptr %dst) {
entry:
- %CB.cb_h = call target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 36, 0)) @llvm.dx.resource.handlefrombinding.tdx.CBuffer_tdx.Layout_s___cblayout_CBs_36_0tt(i32 0, i32 0, i32 1, i32 0, ptr null)
- store target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 36, 0)) %CB.cb_h, ptr @CB.cb, align 4
+ %CB.cb_h = call target("dx.CBuffer", %__cblayout_CB) @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
+ store target("dx.CBuffer", %__cblayout_CB) %CB.cb_h, ptr @CB.cb, align 4
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 1)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 1)
; CHECK: [[X:%.*]] = extractvalue { float, float, float, float } [[LOAD]], 0
; CHECK: store float [[X]], ptr %dst
- %a1 = load float, ptr addrspace(2) getelementptr inbounds ([3 x float], ptr addrspace(2) @a1, i32 0, i32 1), align 4
+ %a1 = load float, ptr addrspace(2) getelementptr inbounds (<{ [2 x <{ float, [12 x i8] }>], float }>, ptr addrspace(2) @a1, i32 0, i32 0, i32 1), align 4
store float %a1, ptr %dst, align 32
ret void
diff --git a/llvm/test/CodeGen/DirectX/CBufferAccess/arrays.ll b/llvm/test/CodeGen/DirectX/CBufferAccess/arrays.ll
index db4e14c1336a6..714df11a3a1fa 100644
--- a/llvm/test/CodeGen/DirectX/CBufferAccess/arrays.ll
+++ b/llvm/test/CodeGen/DirectX/CBufferAccess/arrays.ll
@@ -1,47 +1,60 @@
; RUN: opt -S -dxil-cbuffer-access -mtriple=dxil--shadermodel6.3-library %s | FileCheck %s
+; TODO: Remove datalayout.
+; This hack forces dxil-compatible alignment of 3-element 32- and 64-bit vectors
+target datalayout = "e-m:e-p:32:32-i1:32-i8:8-i16:16-i32:32-i64:64-f16:16-f32:32-f64:64-n8:16:32:64-v96:32:32-v192:64:64"
+
; cbuffer CB : register(b0) {
-; float a1[3];
-; double3 a2[2];
-; float16_t a3[2][2];
-; uint64_t a4[3];
-; int4 a5[2][3][4];
-; uint16_t a6[1];
-; int64_t a7[2];
-; bool a8[4];
+; float a1[3]; // offset 0, size 4 (+12) * 3
+; double3 a2[2]; // offset 48, size 24 (+8) * 2
+; float16_t a3[2][2]; // offset 112, size 2 (+14) * 4
+; uint64_t a4[3]; // offset 176, size 8 (+8) * 3
+; int4 a5[2][3][4]; // offset 224, size 16 * 24
+; uint16_t a6[1]; // offset 608, size 2 (+14) * 1
+; int64_t a7[2]; // offset 624, size 8 (+8) * 2
+; bool a8[4]; // offset 656, size 4 (+12) * 4
; }
-%__cblayout_CB = type <{ [3 x float], [2 x <3 x double>], [2 x [2 x half]], [3 x i64], [2 x [3 x [4 x <4 x i32>]]], [1 x i16], [2 x i64], [4 x i32] }>
+%__cblayout_CB = type <{
+ <{ [2 x <{ float, target("dx.Padding", 12) }>], float }>, target("dx.Padding", 12),
+ <{ [1 x <{ <3 x double>, target("dx.Padding", 8) }>], <3 x double> }>, target("dx.Padding", 8),
+ <{ [3 x <{ half, target("dx.Padding", 14) }>], half }>, target("dx.Padding", 14),
+ <{ [2 x <{ i64, target("dx.Padding", 8) }>], i64 }>, target("dx.Padding", 8),
+ [24 x <4 x i32>],
+ [1 x i16], target("dx.Padding", 14),
+ <{ [1 x <{ i64, target("dx.Padding", 8) }>], i64 }>, target("dx.Padding", 8),
+ <{ [3 x <{ i32, target("dx.Padding", 12) }>], i32 }>
+}>
- at CB.cb = local_unnamed_addr global target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 708, 0, 48, 112, 176, 224, 608, 624, 656)) poison
+ at CB.cb = local_unnamed_addr global target("dx.CBuffer", %__cblayout_CB) poison
; CHECK: @CB.cb =
; CHECK-NOT: external {{.*}} addrspace(2) global
- at a1 = external local_unnamed_addr addrspace(2) global [3 x float], align 4
- at a2 = external local_unnamed_addr addrspace(2) global [2 x <3 x double>], align 32
- at a3 = external local_unnamed_addr addrspace(2) global [2 x [2 x half]], align 2
- at a4 = external local_unnamed_addr addrspace(2) global [3 x i64], align 8
- at a5 = external local_unnamed_addr addrspace(2) global [2 x [3 x [4 x <4 x i32>]]], align 16
+ at a1 = external local_unnamed_addr addrspace(2) global <{ [2 x <{ float, target("dx.Padding", 12) }>], float }>, align 4
+ at a2 = external local_unnamed_addr addrspace(2) global <{ [1 x <{ <3 x double>, target("dx.Padding", 8) }>], <3 x double> }>, align 32
+ at a3 = external local_unnamed_addr addrspace(2) global <{ [3 x <{ half, target("dx.Padding", 14) }>], half }>, align 2
+ at a4 = external local_unnamed_addr addrspace(2) global <{ [2 x <{ i64, target("dx.Padding", 8) }>], i64 }>, align 8
+ at a5 = external local_unnamed_addr addrspace(2) global [24 x <4 x i32>], align 16
@a6 = external local_unnamed_addr addrspace(2) global [1 x i16], align 2
- at a7 = external local_unnamed_addr addrspace(2) global [2 x i64], align 8
- at a8 = external local_unnamed_addr addrspace(2) global [4 x i32], align 4
+ at a7 = external local_unnamed_addr addrspace(2) global <{ [1 x <{ i64, target("dx.Padding", 8) }>], i64 }>, align 8
+ at a8 = external local_unnamed_addr addrspace(2) global <{ [3 x <{ i32, target("dx.Padding", 12) }>], i32 }>, align 4
; CHECK: define void @f
define void @f(ptr %dst) {
entry:
- %CB.cb_h.i.i = tail call target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 708, 0, 48, 112, 176, 224, 608, 624, 656)) @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
- store target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 708, 0, 48, 112, 176, 224, 608, 624, 656)) %CB.cb_h.i.i, ptr @CB.cb, align 4
+ %CB.cb_h.i.i = tail call target("dx.CBuffer", %__cblayout_CB) @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
+ store target("dx.CBuffer", %__cblayout_CB) %CB.cb_h.i.i, ptr @CB.cb, align 4
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 1)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 1)
; CHECK: [[X:%.*]] = extractvalue { float, float, float, float } [[LOAD]], 0
; CHECK: store float [[X]], ptr %dst
- %a1 = load float, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a1, i32 4), align 4
+ %a1 = load float, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a1, i32 16), align 4
store float %a1, ptr %dst, align 32
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { double, double } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 5)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { double, double } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 5)
; CHECK: [[X:%.*]] = extractvalue { double, double } [[LOAD]], 0
; CHECK: [[Y:%.*]] = extractvalue { double, double } [[LOAD]], 1
- ; CHECK: [[LOAD:%.*]] = call { double, double } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 6)
+ ; CHECK: [[LOAD:%.*]] = call { double, double } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 6)
; CHECK: [[Z:%.*]] = extractvalue { double, double } [[LOAD]], 0
; CHECK: [[VEC0:%.*]] = insertelement <3 x double> poison, double [[X]], i32 0
; CHECK: [[VEC1:%.*]] = insertelement <3 x double> [[VEC0]], double [[Y]], i32 1
@@ -52,26 +65,26 @@ entry:
%a2.i = getelementptr inbounds nuw i8, ptr %dst, i32 8
store <3 x double> %a2, ptr %a2.i, align 32
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { half, half, half, half, half, half, half, half } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 8)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { half, half, half, half, half, half, half, half } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 8)
; CHECK: [[X:%.*]] = extractvalue { half, half, half, half, half, half, half, half } [[LOAD]], 0
; CHECK: [[PTR:%.*]] = getelementptr inbounds nuw i8, ptr %dst, i32 32
; CHECK: store half [[X]], ptr [[PTR]]
- %a3 = load half, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a3, i32 6), align 2
+ %a3 = load half, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a3, i32 16), align 2
%a3.i = getelementptr inbounds nuw i8, ptr %dst, i32 32
store half %a3, ptr %a3.i, align 2
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { i64, i64 } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 12)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { i64, i64 } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 12)
; CHECK: [[X:%.*]] = extractvalue { i64, i64 } [[LOAD]], 0
; CHECK: [[PTR:%.*]] = getelementptr inbounds nuw i8, ptr %dst, i32 40
; CHECK: store i64 [[X]], ptr [[PTR]]
- %a4 = load i64, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a4, i32 8), align 8
+ %a4 = load i64, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a4, i32 16), align 8
%a4.i = getelementptr inbounds nuw i8, ptr %dst, i32 40
store i64 %a4, ptr %a4.i, align 8
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 26)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 26)
; CHECK: [[X:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 0
; CHECK: [[Y:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 1
; CHECK: [[Z:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 2
@@ -82,12 +95,12 @@ entry:
; CHECK: [[VEC3:%.*]] = insertelement <4 x i32> [[VEC2]], i32 [[A]], i32 3
; CHECK: [[PTR:%.*]] = getelementptr inbounds nuw i8, ptr %dst, i32 48
; CHECK: store <4 x i32> [[VEC3]], ptr [[PTR]]
- %a5 = load <4 x i32>, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a5, i32 272), align 4
+ %a5 = load <4 x i32>, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a5, i32 192), align 4
%a5.i = getelementptr inbounds nuw i8, ptr %dst, i32 48
store <4 x i32> %a5, ptr %a5.i, align 4
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { i16, i16, i16, i16, i16, i16, i16, i16 } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 38)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { i16, i16, i16, i16, i16, i16, i16, i16 } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 38)
; CHECK: [[X:%.*]] = extractvalue { i16, i16, i16, i16, i16, i16, i16, i16 } [[LOAD]], 0
; CHECK: [[PTR:%.*]] = getelementptr inbounds nuw i8, ptr %dst, i32 64
; CHECK: store i16 [[X]], ptr [[PTR]]
@@ -95,21 +108,21 @@ entry:
%a6.i = getelementptr inbounds nuw i8, ptr %dst, i32 64
store i16 %a6, ptr %a6.i, align 2
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { i64, i64 } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 40)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { i64, i64 } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 40)
; CHECK: [[X:%.*]] = extractvalue { i64, i64 } [[LOAD]], 0
; CHECK: [[PTR:%.*]] = getelementptr inbounds nuw i8, ptr %dst, i32 72
; CHECK: store i64 [[X]], ptr [[PTR]]
- %a7 = load i64, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a7, i32 8), align 8
+ %a7 = load i64, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a7, i32 16), align 8
%a7.i = getelementptr inbounds nuw i8, ptr %dst, i32 72
store i64 %a7, ptr %a7.i, align 8
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 42)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 42)
; CHECK: [[X:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 0
; CHECK: [[PTR:%.*]] = getelementptr inbounds nuw i8, ptr %dst, i32 80
; CHECK: store i32 [[X]], ptr [[PTR]]
- %a8 = load i32, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a8, i32 4), align 4, !range !1, !noundef !2
+ %a8 = load i32, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a8, i32 16), align 4, !range !1, !noundef !2
%a8.i = getelementptr inbounds nuw i8, ptr %dst, i32 80
store i32 %a8, ptr %a8.i, align 4
diff --git a/llvm/test/CodeGen/DirectX/CBufferAccess/float.ll b/llvm/test/CodeGen/DirectX/CBufferAccess/float.ll
index d7272b449166d..6f45fb6ae2e24 100644
--- a/llvm/test/CodeGen/DirectX/CBufferAccess/float.ll
+++ b/llvm/test/CodeGen/DirectX/CBufferAccess/float.ll
@@ -2,7 +2,7 @@
%__cblayout_CB = type <{ float }>
- at CB.cb = local_unnamed_addr global target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 4, 0)) poison
+ at CB.cb = local_unnamed_addr global target("dx.CBuffer", %__cblayout_CB) poison
; CHECK: @CB.cb =
; CHECK-NOT: external {{.*}} addrspace(2) global
@x = external local_unnamed_addr addrspace(2) global float, align 4
@@ -10,8 +10,8 @@
; CHECK: define void @f
define void @f(ptr %dst) {
entry:
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 0)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 0)
; CHECK: [[X:%.*]] = extractvalue { float, float, float, float } [[LOAD]], 0
; CHECK: store float [[X]], ptr %dst
%x = load float, ptr addrspace(2) @x, align 4
diff --git a/llvm/test/CodeGen/DirectX/CBufferAccess/gep-ce-two-uses.ll b/llvm/test/CodeGen/DirectX/CBufferAccess/gep-ce-two-uses.ll
index abe087dbe6100..21724d32f10d0 100644
--- a/llvm/test/CodeGen/DirectX/CBufferAccess/gep-ce-two-uses.ll
+++ b/llvm/test/CodeGen/DirectX/CBufferAccess/gep-ce-two-uses.ll
@@ -3,28 +3,28 @@
; cbuffer CB : register(b0) {
; float a1[3];
; }
-%__cblayout_CB = type <{ [3 x float] }>
+%__cblayout_CB = type <{ [2 x <{ float, [12 x i8] }>], float }>
- at CB.cb = local_unnamed_addr global target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 36, 0)) poison
+ at CB.cb = local_unnamed_addr global target("dx.CBuffer", %__cblayout_CB) poison
; CHECK: @CB.cb =
; CHECK-NOT: external {{.*}} addrspace(2) global
- at a1 = external local_unnamed_addr addrspace(2) global [3 x float], align 4
+ at a1 = external addrspace(2) global <{ [2 x <{ float, [12 x i8] }>], float }>, align 4
; CHECK: define void @f
define void @f(ptr %dst) {
entry:
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 1)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 1)
; CHECK: [[X:%.*]] = extractvalue { float, float, float, float } [[LOAD]], 0
; CHECK: store float [[X]], ptr %dst
- %a1 = load float, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a1, i32 4), align 4
+ %a1 = load float, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a1, i32 16), align 4
store float %a1, ptr %dst, align 32
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 1)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 1)
; CHECK: [[X:%.*]] = extractvalue { float, float, float, float } [[LOAD]], 0
; CHECK: store float [[X]], ptr %dst
- %a2 = load float, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a1, i32 4), align 4
+ %a2 = load float, ptr addrspace(2) getelementptr inbounds nuw (i8, ptr addrspace(2) @a1, i32 16), align 4
store float %a2, ptr %dst, align 32
ret void
diff --git a/llvm/test/CodeGen/DirectX/CBufferAccess/memcpy.ll b/llvm/test/CodeGen/DirectX/CBufferAccess/memcpy.ll
deleted file mode 100644
index f1486f974fb36..0000000000000
--- a/llvm/test/CodeGen/DirectX/CBufferAccess/memcpy.ll
+++ /dev/null
@@ -1,216 +0,0 @@
-; RUN: opt -S -dxil-cbuffer-access -mtriple=dxil--shadermodel6.3-library %s | FileCheck %s
-
-; cbuffer CB : register(b0) {
-; float a1[3];
-; double3 a2[2];
-; float16_t a3[2][2];
-; uint64_t a4[3];
-; int2 a5[3][2];
-; uint16_t a6[1];
-; int64_t a7[2];
-; bool a8[4];
-; }
-%__cblayout_CB = type <{ [3 x float], [2 x <3 x double>], [2 x [2 x half]], [3 x i64], [3 x [2 x <2 x i32>]], [1 x i16], [2 x i64], [4 x i32] }>
-
- at CB.cb = local_unnamed_addr global target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 708, 0, 48, 112, 176, 224, 272, 288, 320)) poison
- at a1 = external local_unnamed_addr addrspace(2) global [3 x float], align 4
- at a2 = external local_unnamed_addr addrspace(2) global [2 x <3 x double>], align 32
- at a3 = external local_unnamed_addr addrspace(2) global [2 x [2 x half]], align 2
- at a4 = external local_unnamed_addr addrspace(2) global [3 x i64], align 8
- at a5 = external local_unnamed_addr addrspace(2) global [3 x [2 x <2 x i32>]], align 16
- at a6 = external local_unnamed_addr addrspace(2) global [1 x i16], align 2
- at a7 = external local_unnamed_addr addrspace(2) global [2 x i64], align 8
- at a8 = external local_unnamed_addr addrspace(2) global [4 x i32], align 4
-
-; CHECK: define void @f(
-define void @f(ptr %dst) {
-entry:
- %CB.cb_h.i.i = tail call target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 708, 0, 48, 112, 176, 224, 272, 288, 320)) @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
- store target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 708, 0, 48, 112, 176, 224, 272, 288, 320)) %CB.cb_h.i.i, ptr @CB.cb, align 4
-
- %a1.copy = alloca [3 x float], align 4
- %a2.copy = alloca [2 x <3 x double>], align 32
- %a3.copy = alloca [2 x [2 x half]], align 2
- %a4.copy = alloca [3 x i64], align 8
- %a5.copy = alloca [3 x [2 x <2 x i32>]], align 16
- %a6.copy = alloca [1 x i16], align 2
- %a7.copy = alloca [2 x i64], align 8
- %a8.copy = alloca [4 x i32], align 4
-
- ; Try copying no elements
-; CHECK-NOT: memcpy
- call void @llvm.memcpy.p0.p2.i32(ptr align 4 %a1.copy, ptr addrspace(2) align 4 @a1, i32 0, i1 false)
-
- ; Try copying only the first element
-; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb, align 4
-; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 0)
-; CHECK: [[X:%.*]] = extractvalue { float, float, float, float } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A1_COPY:%.*]], i32 0
-; CHECK: store float [[X]], ptr [[DEST]], align 4
- call void @llvm.memcpy.p0.p2.i32(ptr align 4 %a1.copy, ptr addrspace(2) align 4 @a1, i32 4, i1 false)
-
-; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb, align 4
-; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 0)
-; CHECK: [[X:%.*]] = extractvalue { float, float, float, float } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A1_COPY:%.*]], i32 0
-; CHECK: store float [[X]], ptr [[DEST]], align 4
-; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 1)
-; CHECK: [[Y:%.*]] = extractvalue { float, float, float, float } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A1_COPY]], i32 4
-; CHECK: store float [[Y]], ptr [[DEST]], align 4
-; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 2)
-; CHECK: [[Z:%.*]] = extractvalue { float, float, float, float } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A1_COPY]], i32 8
-; CHECK: store float [[Z]], ptr [[DEST]], align 4
- call void @llvm.memcpy.p0.p2.i32(ptr align 4 %a1.copy, ptr addrspace(2) align 4 @a1, i32 12, i1 false)
-
-; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb, align 4
-; CHECK: [[LOAD:%.*]] = call { double, double } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 3)
-; CHECK: [[X:%.*]] = extractvalue { double, double } [[LOAD]], 0
-; CHECK: [[Y:%.*]] = extractvalue { double, double } [[LOAD]], 1
-; CHECK: [[LOAD:%.*]] = call { double, double } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 4)
-; CHECK: [[Z:%.*]] = extractvalue { double, double } [[LOAD]], 0
-; CHECK: [[UPTO0:%.*]] = insertelement <3 x double> poison, double [[X]], i32 0
-; CHECK: [[UPTO1:%.*]] = insertelement <3 x double> [[UPTO0]], double [[Y]], i32 1
-; CHECK: [[UPTO2:%.*]] = insertelement <3 x double> [[UPTO1]], double [[Z]], i32 2
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A2_COPY:%.*]], i32 0
-; CHECK: store <3 x double> [[UPTO2]], ptr [[DEST]], align 8
-; CHECK: [[LOAD:%.*]] = call { double, double } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 5)
-; CHECK: [[X:%.*]] = extractvalue { double, double } [[LOAD]], 0
-; CHECK: [[Y:%.*]] = extractvalue { double, double } [[LOAD]], 1
-; CHECK: [[LOAD:%.*]] = call { double, double } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 6)
-; CHECK: [[Z:%.*]] = extractvalue { double, double } [[LOAD]], 0
-; CHECK: [[UPTO0:%.*]] = insertelement <3 x double> poison, double [[X]], i32 0
-; CHECK: [[UPTO1:%.*]] = insertelement <3 x double> [[UPTO0]], double [[Y]], i32 1
-; CHECK: [[UPTO2:%.*]] = insertelement <3 x double> [[UPTO1]], double [[Z]], i32 2
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A2_COPY]], i32 24
-; CHECK: store <3 x double> [[UPTO2]], ptr [[DEST]], align 8
- call void @llvm.memcpy.p0.p2.i32(ptr align 32 %a2.copy, ptr addrspace(2) align 32 @a2, i32 48, i1 false)
-
-; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb, align 4
-; CHECK: [[LOAD:%.*]] = call { half, half, half, half, half, half, half, half } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 7)
-; CHECK: [[X:%.*]] = extractvalue { half, half, half, half, half, half, half, half } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A3_COPY:%.*]], i32 0
-; CHECK: store half [[X]], ptr [[DEST]], align 2
-; CHECK: [[LOAD:%.*]] = call { half, half, half, half, half, half, half, half } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 8)
-; CHECK: [[Y:%.*]] = extractvalue { half, half, half, half, half, half, half, half } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A3_COPY]], i32 2
-; CHECK: store half [[Y]], ptr [[DEST]], align 2
-; CHECK: [[LOAD:%.*]] = call { half, half, half, half, half, half, half, half } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 9)
-; CHECK: [[X:%.*]] = extractvalue { half, half, half, half, half, half, half, half } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A3_COPY]], i32 4
-; CHECK: store half [[X]], ptr [[DEST]], align 2
-; CHECK: [[LOAD:%.*]] = call { half, half, half, half, half, half, half, half } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 10)
-; CHECK: [[Y:%.*]] = extractvalue { half, half, half, half, half, half, half, half } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A3_COPY]], i32 6
-; CHECK: store half [[Y]], ptr [[DEST]], align 2
- call void @llvm.memcpy.p0.p2.i32(ptr align 2 %a3.copy, ptr addrspace(2) align 2 @a3, i32 8, i1 false)
-
-; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb, align 4
-; CHECK: [[LOAD:%.*]] = call { i64, i64 } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 11)
-; CHECK: [[X:%.*]] = extractvalue { i64, i64 } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A4_COPY:%.*]], i32 0
-; CHECK: store i64 [[X]], ptr [[DEST]], align 8
-; CHECK: [[LOAD:%.*]] = call { i64, i64 } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 12)
-; CHECK: [[Y:%.*]] = extractvalue { i64, i64 } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A4_COPY]], i32 8
-; CHECK: store i64 [[Y]], ptr [[DEST]], align 8
-; CHECK: [[LOAD:%.*]] = call { i64, i64 } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 13)
-; CHECK: [[Z:%.*]] = extractvalue { i64, i64 } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A4_COPY]], i32 16
-; CHECK: store i64 [[Z]], ptr [[DEST]], align 8
- call void @llvm.memcpy.p0.p2.i32(ptr align 8 %a4.copy, ptr addrspace(2) align 8 @a4, i32 24, i1 false)
-
-; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb, align 4
-; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 14)
-; CHECK: [[X:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 0
-; CHECK: [[Y:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 1
-; CHECK: [[UPTO0:%.*]] = insertelement <2 x i32> poison, i32 [[X]], i32 0
-; CHECK: [[UPTO1:%.*]] = insertelement <2 x i32> [[UPTO0]], i32 [[Y]], i32 1
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A5_COPY:%.*]], i32 0
-; CHECK: store <2 x i32> [[UPTO1]], ptr [[DEST]], align 8
-; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 15)
-; CHECK: [[X:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 0
-; CHECK: [[Y:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 1
-; CHECK: [[UPTO0:%.*]] = insertelement <2 x i32> poison, i32 [[X]], i32 0
-; CHECK: [[UPTO1:%.*]] = insertelement <2 x i32> [[UPTO0]], i32 [[Y]], i32 1
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A5_COPY]], i32 8
-; CHECK: store <2 x i32> [[UPTO1]], ptr [[DEST]], align 8
-; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 16)
-; CHECK: [[X:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 0
-; CHECK: [[Y:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 1
-; CHECK: [[UPTO0:%.*]] = insertelement <2 x i32> poison, i32 [[X]], i32 0
-; CHECK: [[UPTO1:%.*]] = insertelement <2 x i32> [[UPTO0]], i32 [[Y]], i32 1
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A5_COPY]], i32 16
-; CHECK: store <2 x i32> [[UPTO1]], ptr [[DEST]], align 8
-; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 17)
-; CHECK: [[X:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 0
-; CHECK: [[Y:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 1
-; CHECK: [[UPTO0:%.*]] = insertelement <2 x i32> poison, i32 [[X]], i32 0
-; CHECK: [[UPTO1:%.*]] = insertelement <2 x i32> [[UPTO0]], i32 [[Y]], i32 1
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A5_COPY]], i32 24
-; CHECK: store <2 x i32> [[UPTO1]], ptr [[DEST]], align 8
-; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 18)
-; CHECK: [[X:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 0
-; CHECK: [[Y:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 1
-; CHECK: [[UPTO0:%.*]] = insertelement <2 x i32> poison, i32 [[X]], i32 0
-; CHECK: [[UPTO1:%.*]] = insertelement <2 x i32> [[UPTO0]], i32 [[Y]], i32 1
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A5_COPY]], i32 32
-; CHECK: store <2 x i32> [[UPTO1]], ptr [[DEST]], align 8
-; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 19)
-; CHECK: [[X:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 0
-; CHECK: [[Y:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 1
-; CHECK: [[UPTO0:%.*]] = insertelement <2 x i32> poison, i32 [[X]], i32 0
-; CHECK: [[UPTO1:%.*]] = insertelement <2 x i32> [[UPTO0]], i32 [[Y]], i32 1
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A5_COPY]], i32 40
-; CHECK: store <2 x i32> [[UPTO1]], ptr [[DEST]], align 8
- call void @llvm.memcpy.p0.p2.i32(ptr align 16 %a5.copy, ptr addrspace(2) align 16 @a5, i32 48, i1 false)
-
-; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb, align 4
-; CHECK: [[LOAD:%.*]] = call { i16, i16, i16, i16, i16, i16, i16, i16 } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 17)
-; CHECK: [[X:%.*]] = extractvalue { i16, i16, i16, i16, i16, i16, i16, i16 } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A6_COPY:%.*]], i32 0
-; CHECK: store i16 [[X]], ptr [[DEST]], align 2
- call void @llvm.memcpy.p0.p2.i32(ptr align 2 %a6.copy, ptr addrspace(2) align 2 @a6, i32 2, i1 false)
-
-; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb, align 4
-; CHECK: [[LOAD:%.*]] = call { i64, i64 } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 18)
-; CHECK: [[X:%.*]] = extractvalue { i64, i64 } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A7_COPY:%.*]], i32 0
-; CHECK: store i64 [[X]], ptr [[DEST]], align 8
-; CHECK: [[LOAD:%.*]] = call { i64, i64 } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 19)
-; CHECK: [[Y:%.*]] = extractvalue { i64, i64 } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A7_COPY]], i32 8
-; CHECK: store i64 [[Y]], ptr [[DEST]], align 8
- call void @llvm.memcpy.p0.p2.i32(ptr align 8 %a7.copy, ptr addrspace(2) align 8 @a7, i32 16, i1 false)
-
-; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb, align 4
-; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 20)
-; CHECK: [[X:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A8_COPY:%.*]], i32 0
-; CHECK: store i32 [[X]], ptr [[DEST]], align 4
-; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 21)
-; CHECK: [[Y:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A8_COPY]], i32 4
-; CHECK: store i32 [[Y]], ptr [[DEST]], align 4
-; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 22)
-; CHECK: [[Z:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A8_COPY]], i32 8
-; CHECK: store i32 [[Z]], ptr [[DEST]], align 4
-; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 23)
-; CHECK: [[W:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 0
-; CHECK: [[DEST:%.*]] = getelementptr inbounds i8, ptr [[A8_COPY]], i32 12
-; CHECK: store i32 [[W]], ptr [[DEST]], align 4
- call void @llvm.memcpy.p0.p2.i32(ptr align 4 %a8.copy, ptr addrspace(2) align 4 @a8, i32 16, i1 false)
-
- ret void
-}
-
-declare void @llvm.memcpy.p0.p2.i32(ptr noalias writeonly captures(none), ptr addrspace(2) noalias readonly captures(none), i32, i1 immarg)
-
-; CHECK-NOT: !hlsl.cbs =
-!hlsl.cbs = !{!0}
-
-!0 = !{ptr @CB.cb, ptr addrspace(2) @a1, ptr addrspace(2) @a2, ptr addrspace(2) @a3, ptr addrspace(2) @a4, ptr addrspace(2) @a5, ptr addrspace(2) @a6, ptr addrspace(2) @a7, ptr addrspace(2) @a8}
-!1 = !{i32 0, i32 2}
-!2 = !{}
diff --git a/llvm/test/CodeGen/DirectX/CBufferAccess/scalars.ll b/llvm/test/CodeGen/DirectX/CBufferAccess/scalars.ll
index 7857c25d69636..e53ba1c273240 100644
--- a/llvm/test/CodeGen/DirectX/CBufferAccess/scalars.ll
+++ b/llvm/test/CodeGen/DirectX/CBufferAccess/scalars.ll
@@ -11,7 +11,7 @@
; }
%__cblayout_CB = type <{ float, i32, i32, half, i16, double, i64 }>
- at CB.cb = local_unnamed_addr global target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 32, 0, 4, 8, 12, 14, 16, 24)) poison
+ at CB.cb = local_unnamed_addr global target("dx.CBuffer", %__cblayout_CB) poison
; CHECK: @CB.cb =
; CHECK-NOT: external {{.*}} addrspace(2) global
@a1 = external local_unnamed_addr addrspace(2) global float, align 4
@@ -25,18 +25,18 @@
; CHECK: define void @f
define void @f(ptr %dst) {
entry:
- %CB.cb_h.i.i = tail call target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 32, 0, 4, 8, 12, 14, 16, 24)) @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
- store target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 32, 0, 4, 8, 12, 14, 16, 24)) %CB.cb_h.i.i, ptr @CB.cb, align 4
+ %CB.cb_h.i.i = tail call target("dx.CBuffer", %__cblayout_CB) @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
+ store target("dx.CBuffer", %__cblayout_CB) %CB.cb_h.i.i, ptr @CB.cb, align 4
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 0)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 0)
; CHECK: [[A1:%.*]] = extractvalue { float, float, float, float } [[LOAD]], 0
; CHECK: store float [[A1]], ptr %dst
%a1 = load float, ptr addrspace(2) @a1, align 4
store float %a1, ptr %dst, align 8
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 0)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 0)
; CHECK: [[A2:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 1
; CHECK: [[PTR:%.*]] = getelementptr inbounds nuw i8, ptr %dst, i32 4
; CHECK: store i32 [[A2]], ptr [[PTR]]
@@ -44,8 +44,8 @@ entry:
%a2.i = getelementptr inbounds nuw i8, ptr %dst, i32 4
store i32 %a2, ptr %a2.i, align 4
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 0)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 0)
; CHECK: [[A3:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 2
; CHECK: [[PTR:%.*]] = getelementptr inbounds nuw i8, ptr %dst, i32 8
; CHECK: store i32 [[A3]], ptr [[PTR]]
@@ -53,8 +53,8 @@ entry:
%a3.i = getelementptr inbounds nuw i8, ptr %dst, i32 8
store i32 %a3, ptr %a3.i, align 8
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { half, half, half, half, half, half, half, half } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 0)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { half, half, half, half, half, half, half, half } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 0)
; CHECK: [[A4:%.*]] = extractvalue { half, half, half, half, half, half, half, half } [[LOAD]], 6
; CHECK: [[PTR:%.*]] = getelementptr inbounds nuw i8, ptr %dst, i32 12
; CHECK: store half [[A4]], ptr [[PTR]]
@@ -62,8 +62,8 @@ entry:
%a4.i = getelementptr inbounds nuw i8, ptr %dst, i32 12
store half %a4, ptr %a4.i, align 4
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { i16, i16, i16, i16, i16, i16, i16, i16 } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 0)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { i16, i16, i16, i16, i16, i16, i16, i16 } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 0)
; CHECK: [[A5:%.*]] = extractvalue { i16, i16, i16, i16, i16, i16, i16, i16 } [[LOAD]], 7
; CHECK: [[PTR:%.*]] = getelementptr inbounds nuw i8, ptr %dst, i32 14
; CHECK: store i16 [[A5]], ptr [[PTR]]
@@ -71,8 +71,8 @@ entry:
%a5.i = getelementptr inbounds nuw i8, ptr %dst, i32 14
store i16 %a5, ptr %a5.i, align 2
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { double, double } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 1)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { double, double } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 1)
; CHECK: [[A6:%.*]] = extractvalue { double, double } [[LOAD]], 0
; CHECK: [[PTR:%.*]] = getelementptr inbounds nuw i8, ptr %dst, i32 16
; CHECK: store double [[A6]], ptr [[PTR]]
@@ -80,8 +80,8 @@ entry:
%a6.i = getelementptr inbounds nuw i8, ptr %dst, i32 16
store double %a6, ptr %a6.i, align 8
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { i64, i64 } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 1)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { i64, i64 } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 1)
; CHECK: [[A7:%.*]] = extractvalue { i64, i64 } [[LOAD]], 1
; CHECK: [[PTR:%.*]] = getelementptr inbounds nuw i8, ptr %dst, i32 24
; CHECK: store i64 [[A7]], ptr [[PTR]]
diff --git a/llvm/test/CodeGen/DirectX/CBufferAccess/vectors.ll b/llvm/test/CodeGen/DirectX/CBufferAccess/vectors.ll
index 4160008a986af..e99c77dbe2710 100644
--- a/llvm/test/CodeGen/DirectX/CBufferAccess/vectors.ll
+++ b/llvm/test/CodeGen/DirectX/CBufferAccess/vectors.ll
@@ -8,9 +8,9 @@
; int4 a5; // offset 80, size 16
; uint16_t3 a6; // offset 96, size 6 (+10)
; };
-%__cblayout_CB = type <{ <3 x float>, <3 x double>, <2 x half>, <3 x i64>, <4 x i32>, <3 x i16> }>
+%__cblayout_CB = type <{ <3 x float>, target("dx.Padding", 4), <3 x double>, <2 x half>, target("dx.Padding", 4), <3 x i64>, target("dx.Padding", 8), <4 x i32>, <3 x i16> }>
- at CB.cb = local_unnamed_addr global target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 102, 0, 16, 40, 48, 80, 96)) poison
+ at CB.cb = local_unnamed_addr global target("dx.CBuffer", %__cblayout_CB) poison
; CHECK: @CB.cb =
; CHECK-NOT: external {{.*}} addrspace(2) global
@a1 = external local_unnamed_addr addrspace(2) global <3 x float>, align 16
@@ -23,11 +23,11 @@
; CHECK: define void @f
define void @f(ptr %dst) {
entry:
- %CB.cb_h.i.i = tail call target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 102, 0, 16, 40, 48, 80, 96)) @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
- store target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 102, 0, 16, 40, 48, 80, 96)) %CB.cb_h.i.i, ptr @CB.cb, align 4
+ %CB.cb_h.i.i = tail call target("dx.CBuffer", %__cblayout_CB) @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
+ store target("dx.CBuffer", %__cblayout_CB) %CB.cb_h.i.i, ptr @CB.cb, align 4
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 0)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { float, float, float, float } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 0)
; CHECK: [[X:%.*]] = extractvalue { float, float, float, float } [[LOAD]], 0
; CHECK: [[Y:%.*]] = extractvalue { float, float, float, float } [[LOAD]], 1
; CHECK: [[Z:%.*]] = extractvalue { float, float, float, float } [[LOAD]], 2
@@ -38,11 +38,11 @@ entry:
%a1 = load <3 x float>, ptr addrspace(2) @a1, align 16
store <3 x float> %a1, ptr %dst, align 4
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { double, double } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 1)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { double, double } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 1)
; CHECK: [[X:%.*]] = extractvalue { double, double } [[LOAD]], 0
; CHECK: [[Y:%.*]] = extractvalue { double, double } [[LOAD]], 1
- ; CHECK: [[LOAD:%.*]] = call { double, double } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 2)
+ ; CHECK: [[LOAD:%.*]] = call { double, double } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 2)
; CHECK: [[Z:%.*]] = extractvalue { double, double } [[LOAD]], 0
; CHECK: [[VEC0:%.*]] = insertelement <3 x double> poison, double [[X]], i32 0
; CHECK: [[VEC1:%.*]] = insertelement <3 x double> [[VEC0]], double [[Y]], i32 1
@@ -53,8 +53,8 @@ entry:
%a2.i = getelementptr inbounds nuw i8, ptr %dst, i32 16
store <3 x double> %a2, ptr %a2.i, align 8
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { half, half, half, half, half, half, half, half } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 2)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { half, half, half, half, half, half, half, half } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 2)
; CHECK: [[X:%.*]] = extractvalue { half, half, half, half, half, half, half, half } [[LOAD]], 4
; CHECK: [[Y:%.*]] = extractvalue { half, half, half, half, half, half, half, half } [[LOAD]], 5
; CHECK: [[VEC0:%.*]] = insertelement <2 x half> poison, half [[X]], i32 0
@@ -65,11 +65,11 @@ entry:
%a3.i = getelementptr inbounds nuw i8, ptr %dst, i32 40
store <2 x half> %a3, ptr %a3.i, align 2
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { i64, i64 } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 3)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { i64, i64 } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 3)
; CHECK: [[X:%.*]] = extractvalue { i64, i64 } [[LOAD]], 0
; CHECK: [[Y:%.*]] = extractvalue { i64, i64 } [[LOAD]], 1
- ; CHECK: [[LOAD:%.*]] = call { i64, i64 } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 4)
+ ; CHECK: [[LOAD:%.*]] = call { i64, i64 } @llvm.dx.resource.load.cbufferrow.2.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 4)
; CHECK: [[Z:%.*]] = extractvalue { i64, i64 } [[LOAD]], 0
; CHECK: [[VEC0:%.*]] = insertelement <3 x i64> poison, i64 [[X]], i32 0
; CHECK: [[VEC1:%.*]] = insertelement <3 x i64> [[VEC0]], i64 [[Y]], i32 1
@@ -80,8 +80,8 @@ entry:
%a4.i = getelementptr inbounds nuw i8, ptr %dst, i32 48
store <3 x i64> %a4, ptr %a4.i, align 8
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 5)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 5)
; CHECK: [[X:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 0
; CHECK: [[Y:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 1
; CHECK: [[Z:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 2
@@ -96,8 +96,8 @@ entry:
%a5.i = getelementptr inbounds nuw i8, ptr %dst, i32 72
store <4 x i32> %a5, ptr %a5.i, align 4
- ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", {{.*}})), ptr @CB.cb
- ; CHECK: [[LOAD:%.*]] = call { i16, i16, i16, i16, i16, i16, i16, i16 } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", {{.*}})) [[CB]], i32 6)
+ ; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
+ ; CHECK: [[LOAD:%.*]] = call { i16, i16, i16, i16, i16, i16, i16, i16 } @llvm.dx.resource.load.cbufferrow.8.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 6)
; CHECK: [[X:%.*]] = extractvalue { i16, i16, i16, i16, i16, i16, i16, i16 } [[LOAD]], 0
; CHECK: [[Y:%.*]] = extractvalue { i16, i16, i16, i16, i16, i16, i16, i16 } [[LOAD]], 1
; CHECK: [[Z:%.*]] = extractvalue { i16, i16, i16, i16, i16, i16, i16, i16 } [[LOAD]], 2
>From 29843c0ab437ae28b396262b65f568f2232cee96 Mon Sep 17 00:00:00 2001
From: Justin Bogner <mail at justinbogner.com>
Date: Wed, 11 Jun 2025 11:09:21 -0400
Subject: [PATCH 7/9] wip: Explicit structs in clang codegen
This abandons the `dx.Layout` idea and just uses explicit padding.
Note: Reordered fields break stuff, including ones from implicit bindings.
---
clang/lib/CodeGen/CGExpr.cpp | 20 ++
clang/lib/CodeGen/CGExprAgg.cpp | 127 ++++++++
clang/lib/CodeGen/CGHLSLRuntime.cpp | 24 +-
clang/lib/CodeGen/CGHLSLRuntime.h | 7 +-
clang/lib/CodeGen/HLSLBufferLayoutBuilder.cpp | 270 +++++-------------
clang/lib/CodeGen/HLSLBufferLayoutBuilder.h | 47 +--
clang/lib/CodeGen/Targets/DirectX.cpp | 7 +-
clang/lib/CodeGen/Targets/SPIR.cpp | 7 +-
clang/test/CodeGenHLSL/ArrayAssignable.hlsl | 70 +++--
.../GlobalConstructorFunction.hlsl | 6 +-
clang/test/CodeGenHLSL/resources/cbuffer.hlsl | 251 ++++++++++------
.../resources/cbuffer_and_namespaces.hlsl | 10 +-
.../resources/cbuffer_with_packoffset.hlsl | 13 +-
...uffer_with_static_global_and_function.hlsl | 2 +-
.../resources/default_cbuffer.hlsl | 11 +-
.../default_cbuffer_with_layout.hlsl | 3 +
llvm/lib/Target/SPIRV/SPIRVCBufferAccess.cpp | 7 +-
llvm/lib/Target/SPIRV/SPIRVEmitIntrinsics.cpp | 3 -
.../CodeGen/SPIRV/hlsl-resources/cbuffer.ll | 8 +-
.../SPIRV/hlsl-resources/cbuffer_unused.ll | 18 +-
20 files changed, 528 insertions(+), 383 deletions(-)
diff --git a/clang/lib/CodeGen/CGExpr.cpp b/clang/lib/CodeGen/CGExpr.cpp
index e6e4947882544..6c6a84709c32e 100644
--- a/clang/lib/CodeGen/CGExpr.cpp
+++ b/clang/lib/CodeGen/CGExpr.cpp
@@ -4678,6 +4678,26 @@ LValue CodeGenFunction::EmitArraySubscriptExpr(const ArraySubscriptExpr *E,
emitArraySubscriptGEP(*this, Int8Ty, Addr.emitRawPointer(*this),
ScaledIdx, false, SignedIndices, E->getExprLoc());
Addr = Address(EltPtr, OrigBaseElemTy, EltAlign);
+ } else if (E->getType().getAddressSpace() == LangAS::hlsl_constant) {
+ // This is an array inside of a cbuffer.
+ Addr = EmitPointerWithAlignment(E->getBase(), &EltBaseInfo, &EltTBAAInfo);
+ auto *Idx = EmitIdxAfterBase(/*Promote*/true);
+
+ // ...
+ CharUnits RowAlignedSize = getContext()
+ .getTypeSizeInChars(E->getType())
+ .alignTo(CharUnits::fromQuantity(16));
+
+ llvm::Value *RowAlignedSizeVal =
+ llvm::ConstantInt::get(Idx->getType(), RowAlignedSize.getQuantity());
+ llvm::Value *ScaledIdx = Builder.CreateMul(Idx, RowAlignedSizeVal);
+
+ CharUnits EltAlign =
+ getArrayElementAlign(Addr.getAlignment(), Idx, RowAlignedSize);
+ llvm::Value *EltPtr =
+ emitArraySubscriptGEP(*this, Int8Ty, Addr.emitRawPointer(*this),
+ ScaledIdx, false, SignedIndices, E->getExprLoc());
+ Addr = Address(EltPtr, Addr.getElementType(), EltAlign);
} else if (const Expr *Array = isSimpleArrayDecayOperand(E->getBase())) {
// If this is A[i] where A is an array, the frontend will have decayed the
// base to be a ArrayToPointerDecay implicit cast. While correct, it is
diff --git a/clang/lib/CodeGen/CGExprAgg.cpp b/clang/lib/CodeGen/CGExprAgg.cpp
index b8150a24d45fc..b696687cd3877 100644
--- a/clang/lib/CodeGen/CGExprAgg.cpp
+++ b/clang/lib/CodeGen/CGExprAgg.cpp
@@ -19,12 +19,14 @@
#include "CodeGenModule.h"
#include "ConstantEmitter.h"
#include "EHScopeStack.h"
+#include "HLSLBufferLayoutBuilder.h"
#include "TargetInfo.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/Attr.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/StmtVisitor.h"
+#include "llvm/ADT/ScopeExit.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalVariable.h"
@@ -2280,6 +2282,127 @@ AggValueSlot::Overlap_t CodeGenFunction::getOverlapForBaseInit(
return AggValueSlot::MayOverlap;
}
+namespace {
+class HLSLBufferCopyEmitter {
+ CodeGenFunction &CGF;
+ Address DestPtr;
+ Address SrcPtr;
+ llvm::Type *LayoutTy = nullptr;
+
+ SmallVector<llvm::Value *> CurStoreIndices;
+ SmallVector<llvm::Value *> CurLoadIndices;
+
+ void emitCopyAtIndices(llvm::Type *FieldTy, unsigned StoreIndex,
+ unsigned LoadIndex) {
+ CurStoreIndices.push_back(llvm::ConstantInt::get(CGF.SizeTy, StoreIndex));
+ CurLoadIndices.push_back(llvm::ConstantInt::get(CGF.SizeTy, LoadIndex));
+ auto RestoreIndices = llvm::make_scope_exit([&]() {
+ CurStoreIndices.pop_back();
+ CurLoadIndices.pop_back();
+ });
+
+ if (processArray(FieldTy))
+ return;
+ if (processBufferLayoutArray(FieldTy))
+ return;
+ if (processStruct(FieldTy))
+ return;
+
+ // We have a scalar or vector element - emit a copy.
+ CharUnits Align = CharUnits::fromQuantity(
+ CGF.CGM.getDataLayout().getABITypeAlign(FieldTy));
+ Address SrcGEP = RawAddress(
+ CGF.Builder.CreateInBoundsGEP(LayoutTy, SrcPtr.getBasePointer(),
+ CurLoadIndices, "cbuf.src"),
+ FieldTy, Align, SrcPtr.isKnownNonNull());
+ Address DestGEP = CGF.Builder.CreateInBoundsGEP(
+ DestPtr, CurStoreIndices, FieldTy, Align, "cbuf.dest");
+ llvm::Value *Load = CGF.Builder.CreateLoad(SrcGEP, "cbuf.load");
+ CGF.Builder.CreateStore(Load, DestGEP);
+ }
+
+ bool processArray(llvm::Type *FieldTy) {
+ auto *AT = dyn_cast<llvm::ArrayType>(FieldTy);
+ if (!AT)
+ return false;
+
+ // If we have an array then there isn't any padding
+ // between elements. We just need to copy each element over.
+ for (unsigned I = 0, E = AT->getNumElements(); I < E; ++I)
+ emitCopyAtIndices(AT->getElementType(), I, I);
+ return true;
+ }
+
+ bool processBufferLayoutArray(llvm::Type *FieldTy) {
+ auto *ST = dyn_cast<llvm::StructType>(FieldTy);
+ if (!ST || ST->getNumElements() != 2)
+ return false;
+
+ auto *PaddedEltsTy = dyn_cast<llvm::ArrayType>(ST->getElementType(0));
+ if (!PaddedEltsTy)
+ return false;
+
+ auto *PaddedTy = dyn_cast<llvm::StructType>(PaddedEltsTy->getElementType());
+ if (!PaddedTy || PaddedTy->getNumElements() != 2)
+ return false;
+
+ if (!CGF.CGM.getTargetCodeGenInfo().isHLSLPadding(
+ PaddedTy->getElementType(1)))
+ return false;
+
+ llvm::Type *ElementTy = ST->getElementType(1);
+ if (PaddedTy->getElementType(0) != ElementTy)
+ return false;
+
+ // All but the last of the logical array elements are in the padded array.
+ unsigned NumElts = PaddedEltsTy->getNumElements() + 1;
+
+ // Add an extra indirection to the load for the struct and walk the
+ // array prefix.
+ CurLoadIndices.push_back(llvm::ConstantInt::get(CGF.SizeTy, 0));
+ for (unsigned I = 0; I < NumElts - 1; ++I)
+ emitCopyAtIndices(ElementTy, I, I);
+ CurLoadIndices.pop_back();
+
+ // Now copy the last element.
+ emitCopyAtIndices(ElementTy, NumElts - 1, 1);
+
+ return true;
+ }
+
+ bool processStruct(llvm::Type *FieldTy) {
+ auto *ST = dyn_cast<llvm::StructType>(FieldTy);
+ if (!ST)
+ return false;
+
+ unsigned Skipped = 0;
+ for (unsigned I = 0, E = ST->getNumElements(); I < E; ++I) {
+ llvm::Type *ElementTy = ST->getElementType(I);
+ if (CGF.CGM.getTargetCodeGenInfo().isHLSLPadding(ElementTy))
+ ++Skipped;
+ else
+ emitCopyAtIndices(ElementTy, I, I + Skipped);
+ }
+ return true;
+ }
+
+public:
+ HLSLBufferCopyEmitter(CodeGenFunction &CGF, Address DestPtr, Address SrcPtr)
+ : CGF(CGF), DestPtr(DestPtr), SrcPtr(SrcPtr) {}
+
+ bool emitCopy(QualType CType) {
+ LayoutTy = HLSLBufferLayoutBuilder(CGF.CGM).layOutType(CType);
+
+ // If we don't have an aggregate, we can just fall back to normal memcpy.
+ if (!LayoutTy->isAggregateType())
+ return false;
+
+ emitCopyAtIndices(LayoutTy, 0, 0);
+ return true;
+ }
+};
+} // namespace
+
void CodeGenFunction::EmitAggregateCopy(LValue Dest, LValue Src, QualType Ty,
AggValueSlot::Overlap_t MayOverlap,
bool isVolatile) {
@@ -2315,6 +2438,10 @@ void CodeGenFunction::EmitAggregateCopy(LValue Dest, LValue Src, QualType Ty,
}
}
+ if (getLangOpts().HLSL && Ty.getAddressSpace() == LangAS::hlsl_constant)
+ if (HLSLBufferCopyEmitter(*this, DestPtr, SrcPtr).emitCopy(Ty))
+ return;
+
// Aggregate assignment turns into llvm.memcpy. This is almost valid per
// C99 6.5.16.1p3, which states "If the value being stored in an object is
// read from another object that overlaps in anyway the storage of the first
diff --git a/clang/lib/CodeGen/CGHLSLRuntime.cpp b/clang/lib/CodeGen/CGHLSLRuntime.cpp
index cf018c8c7de2a..214151b8f5c3a 100644
--- a/clang/lib/CodeGen/CGHLSLRuntime.cpp
+++ b/clang/lib/CodeGen/CGHLSLRuntime.cpp
@@ -266,9 +266,9 @@ CGHLSLRuntime::convertHLSLSpecificType(const Type *T,
assert(T->isHLSLSpecificType() && "Not an HLSL specific type!");
// Check if the target has a specific translation for this type first.
- if (llvm::Type *TargetTy =
+ if (llvm::Type *LayoutTy =
CGM.getTargetCodeGenInfo().getHLSLType(CGM, T, Packoffsets))
- return TargetTy;
+ return LayoutTy;
llvm_unreachable("Generic handling of HLSL types is not supported.");
}
@@ -285,10 +285,8 @@ void CGHLSLRuntime::emitBufferGlobalsAndMetadata(const HLSLBufferDecl *BufDecl,
// get the layout struct from constant buffer target type
llvm::Type *BufType = BufGV->getValueType();
- llvm::Type *BufLayoutType =
- cast<llvm::TargetExtType>(BufType)->getTypeParameter(0);
llvm::StructType *LayoutStruct = cast<llvm::StructType>(
- cast<llvm::TargetExtType>(BufLayoutType)->getTypeParameter(0));
+ cast<llvm::TargetExtType>(BufType)->getTypeParameter(0));
// Start metadata list associating the buffer global variable with its
// constatns
@@ -327,6 +325,9 @@ void CGHLSLRuntime::emitBufferGlobalsAndMetadata(const HLSLBufferDecl *BufDecl,
continue;
}
+ if (CGM.getTargetCodeGenInfo().isHLSLPadding(*ElemIt))
+ ++ElemIt;
+
assert(ElemIt != LayoutStruct->element_end() &&
"number of elements in layout struct does not match");
llvm::Type *LayoutType = *ElemIt++;
@@ -424,12 +425,11 @@ void CGHLSLRuntime::addBuffer(const HLSLBufferDecl *BufDecl) {
if (BufDecl->hasValidPackoffset())
fillPackoffsetLayout(BufDecl, Layout);
- llvm::TargetExtType *TargetTy =
- cast<llvm::TargetExtType>(convertHLSLSpecificType(
- ResHandleTy, BufDecl->hasValidPackoffset() ? &Layout : nullptr));
+ llvm::Type *LayoutTy = convertHLSLSpecificType(
+ ResHandleTy, BufDecl->hasValidPackoffset() ? &Layout : nullptr);
llvm::GlobalVariable *BufGV = new GlobalVariable(
- TargetTy, /*isConstant*/ false,
- GlobalValue::LinkageTypes::ExternalLinkage, PoisonValue::get(TargetTy),
+ LayoutTy, /*isConstant*/ false,
+ GlobalValue::LinkageTypes::ExternalLinkage, PoisonValue::get(LayoutTy),
llvm::formatv("{0}{1}", BufDecl->getName(),
BufDecl->isCBuffer() ? ".cb" : ".tb"),
GlobalValue::NotThreadLocal);
@@ -462,7 +462,7 @@ void CGHLSLRuntime::addRootSignature(
SignatureDecl->getRootElements(), nullptr, M);
}
-llvm::TargetExtType *
+llvm::StructType *
CGHLSLRuntime::getHLSLBufferLayoutType(const RecordType *StructType) {
const auto Entry = LayoutTypes.find(StructType);
if (Entry != LayoutTypes.end())
@@ -471,7 +471,7 @@ CGHLSLRuntime::getHLSLBufferLayoutType(const RecordType *StructType) {
}
void CGHLSLRuntime::addHLSLBufferLayoutType(const RecordType *StructType,
- llvm::TargetExtType *LayoutTy) {
+ llvm::StructType *LayoutTy) {
assert(getHLSLBufferLayoutType(StructType) == nullptr &&
"layout type for this struct already exist");
LayoutTypes[StructType] = LayoutTy;
diff --git a/clang/lib/CodeGen/CGHLSLRuntime.h b/clang/lib/CodeGen/CGHLSLRuntime.h
index 9c0e6056fd4ee..c79b7cded3a19 100644
--- a/clang/lib/CodeGen/CGHLSLRuntime.h
+++ b/clang/lib/CodeGen/CGHLSLRuntime.h
@@ -186,10 +186,9 @@ class CGHLSLRuntime {
llvm::Instruction *getConvergenceToken(llvm::BasicBlock &BB);
- llvm::TargetExtType *
- getHLSLBufferLayoutType(const RecordType *LayoutStructTy);
+ llvm::StructType *getHLSLBufferLayoutType(const RecordType *LayoutStructTy);
void addHLSLBufferLayoutType(const RecordType *LayoutStructTy,
- llvm::TargetExtType *LayoutTy);
+ llvm::StructType *LayoutTy);
void emitInitListOpaqueValues(CodeGenFunction &CGF, InitListExpr *E);
std::optional<LValue>
@@ -207,7 +206,7 @@ class CGHLSLRuntime {
HLSLResourceBindingAttr *RBA);
llvm::Triple::ArchType getArch();
- llvm::DenseMap<const clang::RecordType *, llvm::TargetExtType *> LayoutTypes;
+ llvm::DenseMap<const clang::RecordType *, llvm::StructType *> LayoutTypes;
};
} // namespace CodeGen
diff --git a/clang/lib/CodeGen/HLSLBufferLayoutBuilder.cpp b/clang/lib/CodeGen/HLSLBufferLayoutBuilder.cpp
index 838903cdcd1ee..99b5602b18bff 100644
--- a/clang/lib/CodeGen/HLSLBufferLayoutBuilder.cpp
+++ b/clang/lib/CodeGen/HLSLBufferLayoutBuilder.cpp
@@ -9,6 +9,7 @@
#include "HLSLBufferLayoutBuilder.h"
#include "CGHLSLRuntime.h"
#include "CodeGenModule.h"
+#include "TargetInfo.h"
#include "clang/AST/Type.h"
#include <climits>
@@ -19,71 +20,21 @@
using namespace clang;
using namespace clang::CodeGen;
-using llvm::hlsl::CBufferRowSizeInBytes;
-namespace {
-
-// Creates a new array type with the same dimentions but with the new
-// element type.
-static llvm::Type *
-createArrayWithNewElementType(CodeGenModule &CGM,
- const ConstantArrayType *ArrayType,
- llvm::Type *NewElemType) {
- const clang::Type *ArrayElemType = ArrayType->getArrayElementTypeNoTypeQual();
- if (ArrayElemType->isConstantArrayType())
- NewElemType = createArrayWithNewElementType(
- CGM, cast<const ConstantArrayType>(ArrayElemType), NewElemType);
- return llvm::ArrayType::get(NewElemType, ArrayType->getSExtSize());
-}
-
-// Returns the size of a scalar or vector in bytes
-static unsigned getScalarOrVectorSizeInBytes(llvm::Type *Ty) {
- assert(Ty->isVectorTy() || Ty->isIntegerTy() || Ty->isFloatingPointTy());
- if (Ty->isVectorTy()) {
- llvm::FixedVectorType *FVT = cast<llvm::FixedVectorType>(Ty);
- return FVT->getNumElements() *
- (FVT->getElementType()->getScalarSizeInBits() / 8);
- }
- return Ty->getScalarSizeInBits() / 8;
-}
-
-} // namespace
+static const CharUnits CBufferRowSize =
+ CharUnits::fromQuantity(llvm::hlsl::CBufferRowSizeInBytes);
namespace clang {
namespace CodeGen {
-// Creates a layout type for given struct or class with HLSL constant buffer
-// layout taking into account PackOffsets, if provided.
-// Previously created layout types are cached by CGHLSLRuntime.
-//
-// The function iterates over all fields of the record type (including base
-// classes) and calls layoutField to converts each field to its corresponding
-// LLVM type and to calculate its HLSL constant buffer layout. Any embedded
-// structs (or arrays of structs) are converted to target layout types as well.
-//
-// When PackOffsets are specified the elements will be placed based on the
-// user-specified offsets. Not all elements must have a packoffset/register(c#)
-// annotation though. For those that don't, the PackOffsets array will contain
-// -1 value instead. These elements must be placed at the end of the layout
-// after all of the elements with specific offset.
-llvm::TargetExtType *HLSLBufferLayoutBuilder::createLayoutType(
+llvm::StructType *HLSLBufferLayoutBuilder::layOutStruct(
const RecordType *RT, const llvm::SmallVector<int32_t> *PackOffsets) {
// check if we already have the layout type for this struct
- if (llvm::TargetExtType *Ty =
- CGM.getHLSLRuntime().getHLSLBufferLayoutType(RT))
+ // TODO: Do we need to check for matching PackOffsets?
+ if (llvm::StructType *Ty = CGM.getHLSLRuntime().getHLSLBufferLayoutType(RT))
return Ty;
- SmallVector<unsigned> Layout;
- SmallVector<llvm::Type *> LayoutElements;
- unsigned Index = 0; // packoffset index
- unsigned EndOffset = 0;
-
- SmallVector<std::pair<const FieldDecl *, unsigned>> DelayLayoutFields;
-
- // reserve first spot in the layout vector for buffer size
- Layout.push_back(0);
-
// iterate over all fields of the record, including fields on base classes
llvm::SmallVector<CXXRecordDecl *> RecordDecls;
RecordDecls.push_back(RT->castAsCXXRecordDecl());
@@ -94,179 +45,102 @@ llvm::TargetExtType *HLSLBufferLayoutBuilder::createLayoutType(
RecordDecls.push_back(D->bases_begin()->getType()->castAsCXXRecordDecl());
}
- unsigned FieldOffset;
- llvm::Type *FieldType;
+ SmallVector<llvm::Type *> Layout;
+ SmallVector<const FieldDecl *> DelayLayoutFields;
+ CharUnits CurrentOffset = CharUnits::Zero();
+ auto LayOutField = [&](QualType FieldType) {
+ llvm::Type *LayoutType = layOutType(FieldType);
+
+ const llvm::DataLayout &DL = CGM.getDataLayout();
+ CharUnits Size =
+ CharUnits::fromQuantity(DL.getTypeSizeInBits(LayoutType) / 8);
+ CharUnits Align = CharUnits::fromQuantity(DL.getABITypeAlign(LayoutType));
+
+ if (LayoutType->isAggregateType() ||
+ (CurrentOffset % CBufferRowSize) + Size > CBufferRowSize)
+ Align = Align.alignTo(CBufferRowSize);
+
+ CharUnits NextOffset = CurrentOffset.alignTo(Align);
+ if (NextOffset > CurrentOffset) {
+ llvm::Type *Padding = CGM.getTargetCodeGenInfo().getHLSLPadding(
+ CGM, NextOffset - CurrentOffset);
+ Layout.emplace_back(Padding);
+ CurrentOffset = NextOffset;
+ }
+ Layout.emplace_back(LayoutType);
+ CurrentOffset += Size;
+ };
+ unsigned PackOffsetIndex = 0;
while (!RecordDecls.empty()) {
const CXXRecordDecl *RD = RecordDecls.pop_back_val();
for (const auto *FD : RD->fields()) {
- assert((!PackOffsets || Index < PackOffsets->size()) &&
+ assert((!PackOffsets || PackOffsetIndex < PackOffsets->size()) &&
"number of elements in layout struct does not match number of "
"packoffset annotations");
// No PackOffset info at all, or have a valid packoffset/register(c#)
// annotations value -> layout the field.
- const int PO = PackOffsets ? (*PackOffsets)[Index++] : -1;
- if (!PackOffsets || PO != -1) {
- if (!layoutField(FD, EndOffset, FieldOffset, FieldType, PO))
- return nullptr;
- Layout.push_back(FieldOffset);
- LayoutElements.push_back(FieldType);
+ const int PO = PackOffsets ? (*PackOffsets)[PackOffsetIndex++] : -1;
+ if (PO != -1) {
+ LayOutField(FD->getType());
continue;
}
// Have PackOffset info, but there is no packoffset/register(cX)
// annotation on this field. Delay the layout until after all of the
// other elements with packoffsets/register(cX) are processed.
- DelayLayoutFields.emplace_back(FD, LayoutElements.size());
- // reserve space for this field in the layout vector and elements list
- Layout.push_back(UINT_MAX);
- LayoutElements.push_back(nullptr);
+ DelayLayoutFields.emplace_back(FD);
}
}
// process delayed layouts
- for (auto I : DelayLayoutFields) {
- const FieldDecl *FD = I.first;
- const unsigned IndexInLayoutElements = I.second;
- // the first item in layout vector is size, so we need to offset the index
- // by 1
- const unsigned IndexInLayout = IndexInLayoutElements + 1;
- assert(Layout[IndexInLayout] == UINT_MAX &&
- LayoutElements[IndexInLayoutElements] == nullptr);
-
- if (!layoutField(FD, EndOffset, FieldOffset, FieldType))
- return nullptr;
- Layout[IndexInLayout] = FieldOffset;
- LayoutElements[IndexInLayoutElements] = FieldType;
- }
+ for (const FieldDecl *FD : DelayLayoutFields)
+ LayOutField(FD->getType());
- // set the size of the buffer
- Layout[0] = EndOffset;
-
- // create the layout struct type; anonymous struct have empty name but
+ // Create the layout struct type; anonymous structs have empty name but
// non-empty qualified name
const auto *Decl = RT->castAsCXXRecordDecl();
std::string Name =
Decl->getName().empty() ? "anon" : Decl->getQualifiedNameAsString();
- llvm::StructType *StructTy =
- llvm::StructType::create(LayoutElements, Name, true);
- // create target layout type
- llvm::TargetExtType *NewLayoutTy = llvm::TargetExtType::get(
- CGM.getLLVMContext(), LayoutTypeName, {StructTy}, Layout);
- if (NewLayoutTy)
- CGM.getHLSLRuntime().addHLSLBufferLayoutType(RT, NewLayoutTy);
- return NewLayoutTy;
+ llvm::StructType *NewTy = llvm::StructType::create(Layout, Name,
+ /*isPacked=*/true);
+ CGM.getHLSLRuntime().addHLSLBufferLayoutType(RT, NewTy);
+ return NewTy;
}
-// The function converts a single field of HLSL Buffer to its corresponding
-// LLVM type and calculates it's layout. Any embedded structs (or
-// arrays of structs) are converted to target layout types as well.
-// The converted type is set to the FieldType parameter, the element
-// offset is set to the FieldOffset parameter. The EndOffset (=size of the
-// buffer) is also updated accordingly to the offset just after the placed
-// element, unless the incoming EndOffset already larger (may happen in case
-// of unsorted packoffset annotations).
-// Returns true if the conversion was successful.
-// The packoffset parameter contains the field's layout offset provided by the
-// user or -1 if there was no packoffset (or register(cX)) annotation.
-bool HLSLBufferLayoutBuilder::layoutField(const FieldDecl *FD,
- unsigned &EndOffset,
- unsigned &FieldOffset,
- llvm::Type *&FieldType,
- int Packoffset) {
-
- // Size of element; for arrays this is a size of a single element in the
- // array. Total array size of calculated as (ArrayCount-1) * ArrayStride +
- // ElemSize.
- unsigned ElemSize = 0;
- unsigned ElemOffset = 0;
- unsigned ArrayCount = 1;
- unsigned ArrayStride = 0;
-
- unsigned NextRowOffset = llvm::alignTo(EndOffset, CBufferRowSizeInBytes);
-
- llvm::Type *ElemLayoutTy = nullptr;
- QualType FieldTy = FD->getType();
-
- if (FieldTy->isConstantArrayType()) {
- // Unwrap array to find the element type and get combined array size.
- QualType Ty = FieldTy;
- while (Ty->isConstantArrayType()) {
- auto *ArrayTy = CGM.getContext().getAsConstantArrayType(Ty);
- ArrayCount *= ArrayTy->getSExtSize();
- Ty = ArrayTy->getElementType();
- }
- // For array of structures, create a new array with a layout type
- // instead of the structure type.
- if (Ty->isStructureOrClassType()) {
- llvm::Type *NewTy = cast<llvm::TargetExtType>(
- createLayoutType(Ty->getAsCanonical<RecordType>()));
- if (!NewTy)
- return false;
- assert(isa<llvm::TargetExtType>(NewTy) && "expected target type");
- ElemSize = cast<llvm::TargetExtType>(NewTy)->getIntParameter(0);
- ElemLayoutTy = createArrayWithNewElementType(
- CGM, cast<ConstantArrayType>(FieldTy.getTypePtr()), NewTy);
- } else {
- // Array of vectors or scalars
- ElemSize =
- getScalarOrVectorSizeInBytes(CGM.getTypes().ConvertTypeForMem(Ty));
- ElemLayoutTy = CGM.getTypes().ConvertTypeForMem(FieldTy);
- }
- ArrayStride = llvm::alignTo(ElemSize, CBufferRowSizeInBytes);
- ElemOffset = (Packoffset != -1) ? Packoffset : NextRowOffset;
-
- } else if (FieldTy->isStructureOrClassType()) {
- // Create a layout type for the structure
- ElemLayoutTy = createLayoutType(
- cast<RecordType>(FieldTy->getAsCanonical<RecordType>()));
- if (!ElemLayoutTy)
- return false;
- assert(isa<llvm::TargetExtType>(ElemLayoutTy) && "expected target type");
- ElemSize = cast<llvm::TargetExtType>(ElemLayoutTy)->getIntParameter(0);
- ElemOffset = (Packoffset != -1) ? Packoffset : NextRowOffset;
-
- } else {
- // scalar or vector - find element size and alignment
- unsigned Align = 0;
- ElemLayoutTy = CGM.getTypes().ConvertTypeForMem(FieldTy);
- if (ElemLayoutTy->isVectorTy()) {
- // align vectors by sub element size
- const llvm::FixedVectorType *FVT =
- cast<llvm::FixedVectorType>(ElemLayoutTy);
- unsigned SubElemSize = FVT->getElementType()->getScalarSizeInBits() / 8;
- ElemSize = FVT->getNumElements() * SubElemSize;
- Align = SubElemSize;
- } else {
- assert(ElemLayoutTy->isIntegerTy() || ElemLayoutTy->isFloatingPointTy());
- ElemSize = ElemLayoutTy->getScalarSizeInBits() / 8;
- Align = ElemSize;
- }
+llvm::Type *HLSLBufferLayoutBuilder::layOutArray(const ConstantArrayType *AT) {
+ llvm::Type *EltTy = layOutType(AT->getElementType());
+ uint64_t Count = AT->getZExtSize();
+
+ CharUnits EltSize =
+ CharUnits::fromQuantity(CGM.getDataLayout().getTypeSizeInBits(EltTy) / 8);
+ CharUnits Padding = EltSize.alignTo(CBufferRowSize) - EltSize;
+
+ // If we don't have any padding between elements then we just need the array
+ // itself.
+ if (Count < 2 || Padding.isZero())
+ return llvm::ArrayType::get(EltTy, Count);
+
+ llvm::LLVMContext &Context = CGM.getLLVMContext();
+ llvm::Type *PaddingTy =
+ CGM.getTargetCodeGenInfo().getHLSLPadding(CGM, Padding);
+ auto *PaddedEltTy =
+ llvm::StructType::get(Context, {EltTy, PaddingTy}, /*isPacked=*/true);
+ return llvm::StructType::get(
+ Context, {llvm::ArrayType::get(PaddedEltTy, Count - 1), EltTy},
+ /*IsPacked=*/true);
+}
- // calculate or get element offset for the vector or scalar
- if (Packoffset != -1) {
- ElemOffset = Packoffset;
- } else {
- ElemOffset = llvm::alignTo(EndOffset, Align);
- // if the element does not fit, move it to the next row
- if (ElemOffset + ElemSize > NextRowOffset)
- ElemOffset = NextRowOffset;
- }
- }
+llvm::Type *HLSLBufferLayoutBuilder::layOutType(QualType Ty) {
+ if (const auto *AT = CGM.getContext().getAsConstantArrayType(Ty))
+ return layOutArray(AT);
- // Update end offset of the layout; do not update it if the EndOffset
- // is already bigger than the new value (which may happen with unordered
- // packoffset annotations)
- unsigned NewEndOffset =
- ElemOffset + (ArrayCount - 1) * ArrayStride + ElemSize;
- EndOffset = std::max<unsigned>(EndOffset, NewEndOffset);
+ if (Ty->isStructureOrClassType())
+ return layOutStruct(Ty->getAsCanonical<RecordType>());
- // add the layout element and offset to the lists
- FieldOffset = ElemOffset;
- FieldType = ElemLayoutTy;
- return true;
+ return CGM.getTypes().ConvertTypeForMem(Ty);
}
} // namespace CodeGen
diff --git a/clang/lib/CodeGen/HLSLBufferLayoutBuilder.h b/clang/lib/CodeGen/HLSLBufferLayoutBuilder.h
index 61240b280cfcb..0515b469f8b03 100644
--- a/clang/lib/CodeGen/HLSLBufferLayoutBuilder.h
+++ b/clang/lib/CodeGen/HLSLBufferLayoutBuilder.h
@@ -6,13 +6,11 @@
//
//===----------------------------------------------------------------------===//
+#include "clang/AST/TypeBase.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/IR/DerivedTypes.h"
namespace clang {
-class RecordType;
-class FieldDecl;
-
namespace CodeGen {
class CodeGenModule;
@@ -24,23 +22,36 @@ class CodeGenModule;
class HLSLBufferLayoutBuilder {
private:
CodeGenModule &CGM;
- llvm::StringRef LayoutTypeName;
public:
- HLSLBufferLayoutBuilder(CodeGenModule &CGM, llvm::StringRef LayoutTypeName)
- : CGM(CGM), LayoutTypeName(LayoutTypeName) {}
-
- // Returns LLVM target extension type with the name LayoutTypeName
- // for given structure type and layout data. The first number in
- // the Layout is the size followed by offsets for each struct element.
- llvm::TargetExtType *
- createLayoutType(const RecordType *StructType,
- const llvm::SmallVector<int32_t> *Packoffsets = nullptr);
-
-private:
- bool layoutField(const clang::FieldDecl *FD, unsigned &EndOffset,
- unsigned &FieldOffset, llvm::Type *&FieldType,
- int Packoffset = -1);
+ HLSLBufferLayoutBuilder(CodeGenModule &CGM) : CGM(CGM) {}
+
+ /// Lays out a struct type following HLSL buffer rules and considering
+ /// PackOffsets, if provided. Previously created layout structs are cached by
+ /// CGHLSLRuntime.
+ ///
+ /// The function iterates over all fields of the record type (including base
+ /// classes) and calls layoutField to converts each field to its corresponding
+ /// LLVM type and to calculate its HLSL constant buffer layout. Any embedded
+ /// structs (or arrays of structs) are converted to layout types as well.
+ ///
+ /// When PackOffsets are specified the elements will be placed based on the
+ /// user-specified offsets. Not all elements must have a
+ /// packoffset/register(c#) annotation though. For those that don't, the
+ /// PackOffsets array will contain -1 value instead. These elements must be
+ /// placed at the end of the layout after all of the elements with specific
+ /// offset.
+ llvm::StructType *
+ layOutStruct(const RecordType *StructType,
+ const llvm::SmallVector<int32_t> *Packoffsets = nullptr);
+
+ /// Lays out an array type following HLSL buffer rules.
+ llvm::Type *
+ layOutArray(const ConstantArrayType *AT);
+
+ /// Lays out a type following HLSL buffer rules. Arrays and structures will be
+ /// padded appropriately and nested objects will be converted as appropriate.
+ llvm::Type *layOutType(QualType Type);
};
} // namespace CodeGen
diff --git a/clang/lib/CodeGen/Targets/DirectX.cpp b/clang/lib/CodeGen/Targets/DirectX.cpp
index d44e531dacdff..6f6eb8beed5b9 100644
--- a/clang/lib/CodeGen/Targets/DirectX.cpp
+++ b/clang/lib/CodeGen/Targets/DirectX.cpp
@@ -88,10 +88,9 @@ llvm::Type *DirectXTargetCodeGenInfo::getHLSLType(
if (ContainedTy.isNull() || !ContainedTy->isStructureType())
return nullptr;
- llvm::Type *BufferLayoutTy =
- HLSLBufferLayoutBuilder(CGM, "dx.Layout")
- .createLayoutType(ContainedTy->castAsCanonical<RecordType>(),
- Packoffsets);
+ llvm::StructType *BufferLayoutTy =
+ HLSLBufferLayoutBuilder(CGM).layOutStruct(
+ ContainedTy->getAsCanonical<RecordType>(), Packoffsets);
if (!BufferLayoutTy)
return nullptr;
diff --git a/clang/lib/CodeGen/Targets/SPIR.cpp b/clang/lib/CodeGen/Targets/SPIR.cpp
index a945f203c15e5..9db3daebd3786 100644
--- a/clang/lib/CodeGen/Targets/SPIR.cpp
+++ b/clang/lib/CodeGen/Targets/SPIR.cpp
@@ -513,10 +513,9 @@ llvm::Type *CommonSPIRTargetCodeGenInfo::getHLSLType(
if (ContainedTy.isNull() || !ContainedTy->isStructureType())
return nullptr;
- llvm::Type *BufferLayoutTy =
- HLSLBufferLayoutBuilder(CGM, "spirv.Layout")
- .createLayoutType(ContainedTy->castAsCanonical<RecordType>(),
- Packoffsets);
+ llvm::StructType *BufferLayoutTy =
+ HLSLBufferLayoutBuilder(CGM).layOutStruct(
+ ContainedTy->getAsCanonical<RecordType>(), Packoffsets);
uint32_t StorageClass = /* Uniform storage class */ 2;
return llvm::TargetExtType::get(Ctx, "spirv.VulkanBuffer", {BufferLayoutTy},
{StorageClass, false});
diff --git a/clang/test/CodeGenHLSL/ArrayAssignable.hlsl b/clang/test/CodeGenHLSL/ArrayAssignable.hlsl
index aaa486eff10b7..0a71801a860d2 100644
--- a/clang/test/CodeGenHLSL/ArrayAssignable.hlsl
+++ b/clang/test/CodeGenHLSL/ArrayAssignable.hlsl
@@ -5,18 +5,19 @@ struct S {
float f;
};
-// CHECK: [[CBLayout:%.*]] = type <{ [2 x float], [2 x <4 x i32>], [2 x [2 x i32]], [1 x target("dx.Layout", %S, 8, 0, 4)] }>
-// CHECK: @CBArrays.cb = global target("dx.CBuffer", target("dx.Layout", [[CBLayout]], 136, 0, 32, 64, 128))
-// CHECK: @c1 = external hidden addrspace(2) global [2 x float], align 4
+// CHECK: [[CBLayout:%.*]] = type <{ <{ [1 x <{ float, target("dx.Padding", 12) }>], float }>, target("dx.Padding", 12), [2 x <4 x i32>], <{ [1 x <{ <{ [1 x <{ i32, target("dx.Padding", 12) }>], i32 }>, target("dx.Padding", 12) }>], <{ [1 x <{ i32, target("dx.Padding", 12) }>], i32 }> }>, target("dx.Padding", 12), <{ [1 x <{ %S, target("dx.Padding", 8) }>], %S }> }>
+
+// CHECK: @CBArrays.cb = global target("dx.CBuffer", [[CBLayout]])
+// CHECK: @c1 = external hidden addrspace(2) global <{ [1 x <{ float, target("dx.Padding", 12) }>], float }>, align 4
// CHECK: @c2 = external hidden addrspace(2) global [2 x <4 x i32>], align 16
-// CHECK: @c3 = external hidden addrspace(2) global [2 x [2 x i32]], align 4
-// CHECK: @c4 = external hidden addrspace(2) global [1 x target("dx.Layout", %S, 8, 0, 4)], align 1
+// CHECK: @c3 = external hidden addrspace(2) global <{ [1 x <{ <{ [1 x <{ i32, target("dx.Padding", 12) }>], i32 }>, target("dx.Padding", 12) }>], <{ [1 x <{ i32, target("dx.Padding", 12) }>], i32 }> }>, align 4
+// CHECK: @c4 = external hidden addrspace(2) global <{ [1 x <{ %S, target("dx.Padding", 8) }>], %S }>, align 1
cbuffer CBArrays : register(b0) {
float c1[2];
int4 c2[2];
int c3[2][2];
- S c4[1];
+ S c4[2];
}
// CHECK-LABEL: define hidden void {{.*}}arr_assign1
@@ -140,40 +141,71 @@ void arr_assign7() {
// CHECK-LABEL: define hidden void {{.*}}arr_assign8
// CHECK: [[C:%.*]] = alloca [2 x float], align 4
-// CHECK-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 4 [[C]], ptr align 4 {{.*}}, i32 8, i1 false)
-// CHECK-NEXT: call void @llvm.memcpy.p0.p2.i32(ptr align 4 [[C]], ptr addrspace(2) align 4 @c1, i32 8, i1 false)
+// CHECK-NEXT: [[V0:%.*]] = getelementptr inbounds [2 x float], ptr [[C]], i32 0
+// CHECK-NEXT: [[L0:%.*]] = load float, ptr addrspace(2) @c1, align 4
+// CHECK-NEXT: store float [[L0]], ptr [[V0]], align 4
+// CHECK-NEXT: [[V1:%.*]] = getelementptr inbounds [2 x float], ptr [[C]], i32 0, i32 1
+// CHECK-NEXT: [[L1:%.*]] = load float, ptr addrspace(2) getelementptr inbounds (<{ [1 x <{ float, target("dx.Padding", 12) }>], float }>, ptr addrspace(2) @c1, i32 0, i32 1), align 4
+// CHECK-NEXT: store float [[L1]], ptr [[V1]], align 4
// CHECK-NEXT: ret void
void arr_assign8() {
- float C[2] = {1.0, 2.0};
+ float C[2];
C = c1;
}
+// TODO: A memcpy would actually be valid here, since everything is aligned on
+// 16 byte boundaries.
+//
// CHECK-LABEL: define hidden void {{.*}}arr_assign9
// CHECK: [[C:%.*]] = alloca [2 x <4 x i32>], align 16
-// CHECK-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 16 [[C]], ptr align 16 {{.*}}, i32 32, i1 false)
-// CHECK-NEXT: call void @llvm.memcpy.p0.p2.i32(ptr align 16 [[C]], ptr addrspace(2) align 16 @c2, i32 32, i1 false)
+// CHECK-NEXT: [[V0:%.*]] = getelementptr inbounds [2 x <4 x i32>], ptr [[C]], i32 0
+// CHECK-NEXT: [[L0:%.*]] = load <4 x i32>, ptr addrspace(2) @c2, align 16
+// CHECK-NEXT: store <4 x i32> [[L0]], ptr [[V0]], align 16
+// CHECK-NEXT: [[V1:%.*]] = getelementptr inbounds [2 x <4 x i32>], ptr [[C]], i32 0, i32 1
+// CHECK-NEXT: [[L1:%.*]] = load <4 x i32>, ptr addrspace(2) getelementptr inbounds ([2 x <4 x i32>], ptr addrspace(2) @c2, i32 0, i32 1), align 16
+// CHECK-NEXT: store <4 x i32> [[L1]], ptr [[V1]], align 16
// CHECK-NEXT: ret void
void arr_assign9() {
- int4 C[2] = {1,2,3,4,5,6,7,8};
+ int4 C[2];
C = c2;
}
// CHECK-LABEL: define hidden void {{.*}}arr_assign10
// CHECK: [[C:%.*]] = alloca [2 x [2 x i32]], align 4
-// CHECK-NEXT: call void @llvm.memcpy.p0.p0.i32(ptr align 4 [[C]], ptr align 4 {{.*}}, i32 16, i1 false)
-// CHECK-NEXT: call void @llvm.memcpy.p0.p2.i32(ptr align 4 [[C]], ptr addrspace(2) align 4 @c3, i32 16, i1 false)
+// CHECK-NEXT: [[V0:%.*]] = getelementptr inbounds [2 x [2 x i32]], ptr [[C]], i32 0, i32 0
+// CHECK-NEXT: [[L0:%.*]] = load i32, ptr addrspace(2) @c3, align 4
+// CHECK-NEXT: store i32 [[L0]], ptr [[V0]], align 4
+// CHECK-NEXT: [[V1:%.*]] = getelementptr inbounds [2 x [2 x i32]], ptr [[C]], i32 0, i32 0, i32 1
+// CHECK-NEXT: [[L1:%.*]] = load i32, ptr addrspace(2) getelementptr inbounds (<{ [1 x <{ <{ [1 x <{ i32, target("dx.Padding", 12) }>], i32 }>, target("dx.Padding", 12) }>], <{ [1 x <{ i32, target("dx.Padding", 12) }>], i32 }> }>, ptr addrspace(2) @c3, i32 0, i32 0, i32 0, i32 1), align 4
+// CHECK-NEXT: store i32 [[L1]], ptr [[V1]], align 4
+// CHECK-NEXT: [[V2:%.*]] = getelementptr inbounds [2 x [2 x i32]], ptr [[C]], i32 0, i32 1, i32 0
+// CHECK-NEXT: [[L2:%.*]] = load i32, ptr addrspace(2) getelementptr inbounds (<{ [1 x <{ <{ [1 x <{ i32, target("dx.Padding", 12) }>], i32 }>, target("dx.Padding", 12) }>], <{ [1 x <{ i32, target("dx.Padding", 12) }>], i32 }> }>, ptr addrspace(2) @c3, i32 0, i32 1, i32 0, i32 0), align 4
+// CHECK-NEXT: store i32 [[L2]], ptr [[V2]], align 4
+// CHECK-NEXT: [[V3:%.*]] = getelementptr inbounds [2 x [2 x i32]], ptr [[C]], i32 0, i32 1, i32 1
+// CHECK-NEXT: [[L3:%.*]] = load i32, ptr addrspace(2) getelementptr inbounds (<{ [1 x <{ <{ [1 x <{ i32, target("dx.Padding", 12) }>], i32 }>, target("dx.Padding", 12) }>], <{ [1 x <{ i32, target("dx.Padding", 12) }>], i32 }> }>, ptr addrspace(2) @c3, i32 0, i32 1, i32 1), align 4
+// CHECK-NEXT: store i32 [[L3]], ptr [[V3]], align 4
// CHECK-NEXT: ret void
void arr_assign10() {
- int C[2][2] = {1,2,3,4};
+ int C[2][2];
C = c3;
}
// CHECK-LABEL: define hidden void {{.*}}arr_assign11
-// CHECK: [[C:%.*]] = alloca [1 x %struct.S], align 1
-// CHECK: call void @llvm.memcpy.p0.p2.i32(ptr align 1 [[C]], ptr addrspace(2) align 1 @c4, i32 8, i1 false)
+// CHECK: [[C:%.*]] = alloca [2 x %struct.S], align 1
+// CHECK-NEXT: [[V0:%.*]] = getelementptr inbounds [2 x %struct.S], ptr [[C]], i32 0, i32 0
+// CHECK-NEXT: [[L0:%.*]] = load i32, ptr addrspace(2) @c4, align 4
+// CHECK-NEXT: store i32 [[L0]], ptr [[V0]], align 4
+// CHECK-NEXT: [[V1:%.*]] = getelementptr inbounds [2 x %struct.S], ptr [[C]], i32 0, i32 0, i32 1
+// CHECK-NEXT: [[L1:%.*]] = load float, ptr addrspace(2) getelementptr inbounds (<{ [1 x <{ %S, target("dx.Padding", 8) }>], %S }>, ptr addrspace(2) @c4, i32 0, i32 0, i32 0, i32 1), align 4
+// CHECK-NEXT: store float [[L1]], ptr [[V1]], align 4
+// CHECK-NEXT: [[V2:%.*]] = getelementptr inbounds [2 x %struct.S], ptr [[C]], i32 0, i32 1, i32 0
+// CHECK-NEXT: [[L2:%.*]] = load i32, ptr addrspace(2) getelementptr inbounds (<{ [1 x <{ %S, target("dx.Padding", 8) }>], %S }>, ptr addrspace(2) @c4, i32 0, i32 1, i32 0), align 4
+// CHECK-NEXT: store i32 [[L2]], ptr [[V2]], align 4
+// CHECK-NEXT: [[V3:%.*]] = getelementptr inbounds [2 x %struct.S], ptr [[C]], i32 0, i32 1, i32 1
+// CHECK-NEXT: [[L3:%.*]] = load float, ptr addrspace(2) getelementptr inbounds (<{ [1 x <{ %S, target("dx.Padding", 8) }>], %S }>, ptr addrspace(2) @c4, i32 0, i32 1, i32 1), align 4
+// CHECK-NEXT: store float [[L3]], ptr [[V3]], align 4
// CHECK-NEXT: ret void
void arr_assign11() {
- S s = {1, 2.0};
- S C[1] = {s};
+ S C[2];
C = c4;
}
diff --git a/clang/test/CodeGenHLSL/GlobalConstructorFunction.hlsl b/clang/test/CodeGenHLSL/GlobalConstructorFunction.hlsl
index b36682e065b3a..df82e8201ba55 100644
--- a/clang/test/CodeGenHLSL/GlobalConstructorFunction.hlsl
+++ b/clang/test/CodeGenHLSL/GlobalConstructorFunction.hlsl
@@ -37,9 +37,9 @@ void main(unsigned GI : SV_GroupIndex) {}
// INLINE-NEXT: alloca
// INLINE-NEXT: store i32 12
// INLINE-NEXT: store i32 13
-// INLINE-NEXT: %[[HANDLE:.*]] = call target("dx.CBuffer", target("dx.Layout", %"__cblayout_$Globals", 4, 0))
-// INLINE-NEXT-SAME: @"llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_tdx.Layout_s___cblayout_$Globalss_4_0tt"(i32 0, i32 0, i32 1, i32 0, i1 false)
-// INLINE-NEXT: store target("dx.CBuffer", target("dx.Layout", %"__cblayout_$Globals", 4, 0)) %[[HANDLE]], ptr @"$Globals.cb", align 4
+// INLINE-NEXT: %[[HANDLE:.*]] = call target("dx.CBuffer", %"__cblayout_$Globals")
+// INLINE-NEXT-SAME: @"llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_s___cblayout_$Globalsst"(i32 0, i32 0, i32 1, i32 0, i1 false, ptr @"$Globals.str")
+// INLINE-NEXT: store target("dx.CBuffer", %"__cblayout_$Globals") %[[HANDLE]], ptr @"$Globals.cb", align 4
// INLINE-NEXT: %0 = call i32 @llvm.dx.flattened.thread.id.in.group()
// INLINE-NEXT: store i32 %
// INLINE-NEXT: store i32 0
diff --git a/clang/test/CodeGenHLSL/resources/cbuffer.hlsl b/clang/test/CodeGenHLSL/resources/cbuffer.hlsl
index 8dcff5dad9d13..ab37ae0bc4e68 100644
--- a/clang/test/CodeGenHLSL/resources/cbuffer.hlsl
+++ b/clang/test/CodeGenHLSL/resources/cbuffer.hlsl
@@ -1,37 +1,121 @@
// RUN: %clang_cc1 -finclude-default-header -triple dxil-pc-shadermodel6.3-compute -fnative-half-type -emit-llvm -disable-llvm-passes -o - %s | FileCheck %s
-// CHECK: %__cblayout_CBScalars = type <{ float, double, half, i64, i32, i16, i32, i64 }>
-// CHECK: %__cblayout_CBVectors = type <{ <3 x float>, <3 x double>, <2 x half>, <3 x i64>, <4 x i32>, <3 x i16>, <3 x i64> }>
-// CHECK: %__cblayout_CBArrays = type <{ [3 x float], [2 x <3 x double>], [2 x [2 x half]], [3 x i64], [2 x [3 x [4 x <4 x i32>]]], [1 x i16], [2 x i64], [4 x i32] }>
-// CHECK: %__cblayout_CBStructs = type <{ target("dx.Layout", %A, 8, 0), target("dx.Layout", %B, 14, 0, 8),
-// CHECK-SAME: target("dx.Layout", %C, 24, 0, 16), [5 x target("dx.Layout", %A, 8, 0)],
-// CHECK-SAME: target("dx.Layout", %__cblayout_D, 94, 0), half, <3 x i16> }>
+// CHECK: %__cblayout_CBScalars = type <{
+// CHECK-SAME: float, target("dx.Padding", 4), double,
+// CHECK-SAME: half, target("dx.Padding", 6), i64,
+// CHECK-SAME: i32, i16, target("dx.Padding", 2), i32, target("dx.Padding", 4),
+// CHECK-SAME: i64
+// CHECK-SAME: }>
+
+// CHECK: %__cblayout_CBVectors = type <{
+// CHECK-SAME: <3 x float>, target("dx.Padding", 4),
+// CHECK-SAME: <3 x double>, <2 x half>, target("dx.Padding", 4),
+// CHECK-SAME: <3 x i64>, target("dx.Padding", 8),
+// CHECK-SAME: <4 x i32>,
+// CHECK-SAME: <3 x i16>, target("dx.Padding", 10),
+// CHECK-SAME: <3 x i64>
+// CHECK-SAME: }>
+
+// CHECK: %__cblayout_CBArrays = type <{
+// CHECK-SAME: <{ [2 x <{ float, target("dx.Padding", 12) }>], float }>, target("dx.Padding", 12),
+// CHECK-SAME: <{ [1 x <{ <3 x double>, target("dx.Padding", 8) }>], <3 x double> }>, target("dx.Padding", 8),
+// CHECK-SAME: <{ [1 x <{
+// CHECK-SAME: <{ [1 x <{ half, target("dx.Padding", 14) }>], half }>, target("dx.Padding", 14) }>],
+// CHECK-SAME: <{ [1 x <{ half, target("dx.Padding", 14) }>], half }>
+// CHECK-SAME: }>, target("dx.Padding", 14),
+// CHECK-SAME: <{ [2 x <{ i64, target("dx.Padding", 8) }>], i64 }>, target("dx.Padding", 8),
+// CHECK-SAME: [2 x [3 x [4 x <4 x i32>]]]
+// CHECK-SAME: [1 x i16], target("dx.Padding", 14),
+// CHECK-SAME: <{ [1 x <{ i64, target("dx.Padding", 8) }>], i64 }>, target("dx.Padding", 8),
+// CHECK-SAME: <{ [3 x <{ i32, target("dx.Padding", 12) }>], i32 }>
+// CHECK-SAME: }>
+
+// CHECK: %__cblayout_CBStructs = type <{
+// CHECK-SAME: %A, target("dx.Padding", 8),
+
+// TODO: We should have target("dx.Padding", 2) padding after %B, but we don't correctly handle
+// 2- and 3-element vectors inside structs yet because of DataLayout rules.
+// CHECK-SAME: %B,
+
+// CHECK-SAME: %C, target("dx.Padding", 8),
+// CHECK-SAME: <{ [4 x <{ %A, target("dx.Padding", 8) }>], %A }>, target("dx.Padding", 8),
+// CHECK-SAME: %__cblayout_D, half,
+// CHECK-SAME: <3 x i16>
+// CHECK-SAME: }>
// CHECK: %A = type <{ <2 x float> }>
// CHECK: %B = type <{ <2 x float>, <3 x i16> }>
-// CHECK: %C = type <{ i32, target("dx.Layout", %A, 8, 0) }>
-// CHECK: %__cblayout_D = type <{ [2 x [3 x target("dx.Layout", %B, 14, 0, 8)]] }>
+// CHECK: %C = type <{ i32, target("dx.Padding", 12), %A }>
+
+// CHECK: %__cblayout_D = type <{
+// CHECK-SAME: <{ [1 x <{
+// CHECK-SAME: <{ [2 x <{ %B, target("dx.Padding", 2) }>], %B }>, target("dx.Padding", 2)
+// CHECK-SAME: }>],
+// CHECK-SAME: <{ [2 x <{ %B, target("dx.Padding", 2) }>], %B }> }>
+// CHECK-SAME: }>
+
+// CHECK: %__cblayout_CBClasses = type <{
+// CHECK-SAME: %K, target("dx.Padding", 12),
+// CHECK-SAME: %L, target("dx.Padding", 8),
+// CHECK-SAME: %M, target("dx.Padding", 12),
+// CHECK-SAME: <{ [9 x <{ %K, target("dx.Padding", 12) }>], %K }>
+// CHECK-SAME: }>
-// CHECK: %__cblayout_CBClasses = type <{ target("dx.Layout", %K, 4, 0), target("dx.Layout", %L, 8, 0, 4),
-// CHECK-SAME: target("dx.Layout", %M, 68, 0), [10 x target("dx.Layout", %K, 4, 0)] }>
// CHECK: %K = type <{ float }>
// CHECK: %L = type <{ float, float }>
-// CHECK: %M = type <{ [5 x target("dx.Layout", %K, 4, 0)] }>
-
-// CHECK: %__cblayout_CBMix = type <{ [2 x target("dx.Layout", %Test, 8, 0, 4)], float, [3 x [2 x <2 x float>]], float,
-// CHECK-SAME: target("dx.Layout", %anon, 4, 0), double, target("dx.Layout", %anon.0, 8, 0), float, <1 x double>, i16 }>
+// CHECK: %M = type <{ <{ [4 x <{ %K, target("dx.Padding", 12) }>], %K }> }>
+
+// CHECK: %__cblayout_CBMix = type <{
+// CHECK-SAME: <{ [1 x <{ %Test, target("dx.Padding", 8) }>], %Test }>, float, target("dx.Padding", 4)
+// CHECK-SAME: <{ [2 x <{
+// CHECK-SAME: <{ [1 x <{ <2 x float>, target("dx.Padding", 8) }>], <2 x float> }>, target("dx.Padding", 8) }>],
+// CHECK-SAME: <{ [1 x <{ <2 x float>, target("dx.Padding", 8) }>], <2 x float> }>
+// CHECK-SAME: }>, float, target("dx.Padding", 4),
+// CHECK-SAME: %anon, target("dx.Padding", 4), double,
+// CHECK-SAME: %anon.0, float, target("dx.Padding", 4),
+// CHECK-SAME: <1 x double>, i16
+// CHECK-SAME: }>
// CHECK: %Test = type <{ float, float }>
// CHECK: %anon = type <{ float }>
// CHECK: %anon.0 = type <{ <2 x i32> }>
-// CHECK: %__cblayout_CB_A = type <{ [2 x double], [3 x <3 x float>], float, [3 x double], half, [1 x <2 x double>], float, [2 x <3 x half>], <3 x half> }>
-// CHECK: %__cblayout_CB_B = type <{ [3 x <3 x double>], <3 x half> }>
-// CHECK: %__cblayout_CB_C = type <{ i32, target("dx.Layout", %F, 96, 0, 16, 28, 32, 56, 64, 80, 84, 90), half, target("dx.Layout", %G, 258, 0, 48, 64, 256), double }>
-
-// CHECK: %F = type <{ double, <3 x float>, float, <3 x double>, half, <2 x double>, float, <3 x half>, <3 x half> }>
-// CHECK: %G = type <{ target("dx.Layout", %E, 36, 0, 8, 16, 20, 22, 24, 32), [1 x float], [2 x target("dx.Layout", %F, 96, 0, 16, 28, 32, 56, 64, 80, 84, 90)], half }>
-// CHECK: %E = type <{ float, double, float, half, i16, i64, i32 }>
+// CHECK: %__cblayout_CB_A = type <{
+// CHECK-SAME: <{ [1 x <{ double, target("dx.Padding", 8) }>], double }>, target("dx.Padding", 8),
+// CHECK-SAME: <{ [2 x <{ <3 x float>, target("dx.Padding", 4) }>], <3 x float> }>, float,
+// CHECK-SAME: <{ [2 x <{ double, target("dx.Padding", 8) }>], double }>, half, target("dx.Padding", 6),
+// CHECK-SAME: [1 x <2 x double>],
+// CHECK-SAME: float, target("dx.Padding", 12),
+// CHECK-SAME: <{ [1 x <{ <3 x half>, target("dx.Padding", 10) }>], <3 x half> }>, <3 x half>
+// CHECK-SAME: }>
+
+// CHECK: %__cblayout_CB_B = type <{
+// CHECK-SAME: <{ [2 x <{ <3 x double>, target("dx.Padding", 8) }>], <3 x double> }>, <3 x half>
+// CHECK-SAME: }>
+
+// CHECK: %__cblayout_CB_C = type <{
+// CHECK-SAME: i32, target("dx.Padding", 12),
+// CHECK-SAME: %F,
+// CHECK-SAME: half, target("dx.Padding", 14),
+// CHECK-SAME: %G, target("dx.Padding", 6), double
+// CHECK-SAME: }>
+
+// CHECK: %F = type <{
+// CHECK-SAME: double, target("dx.Padding", 8),
+// CHECK-SAME: <3 x float>, float,
+// CHECK-SAME: <3 x double>, half, target("dx.Padding", 6),
+// CHECK-SAME: <2 x double>,
+// CHECK-SAME: float, <3 x half>, <3 x half>
+// CHECK-SAME: }>
+
+// CHECK: %G = type <{
+// CHECK-SAME: %E, target("dx.Padding", 12),
+// CHECK-SAME: [1 x float], target("dx.Padding", 12),
+// CHECK-SAME: [2 x %F],
+// CHECK-SAME: half
+// CHECK-SAME: }>
+
+// CHECK: %E = type <{ float, target("dx.Padding", 4), double, float, half, i16, i64, i32 }>
cbuffer CBScalars : register(b1, space5) {
float a1;
@@ -44,8 +128,7 @@ cbuffer CBScalars : register(b1, space5) {
int64_t a8;
}
-// CHECK: @CBScalars.cb = global target("dx.CBuffer", target("dx.Layout", %__cblayout_CBScalars,
-// CHECK-SAME: 56, 0, 8, 16, 24, 32, 36, 40, 48))
+// CHECK: @CBScalars.cb = global target("dx.CBuffer", %__cblayout_CBScalars)
// CHECK: @a1 = external hidden addrspace(2) global float, align 4
// CHECK: @a2 = external hidden addrspace(2) global double, align 8
// CHECK: @a3 = external hidden addrspace(2) global half, align 2
@@ -67,8 +150,7 @@ cbuffer CBVectors {
// FIXME: add a bool vectors after llvm-project/llvm#91639 is added
}
-// CHECK: @CBVectors.cb = global target("dx.CBuffer", target("dx.Layout", %__cblayout_CBVectors,
-// CHECK-SAME: 136, 0, 16, 40, 48, 80, 96, 112))
+// CHECK: @CBVectors.cb = global target("dx.CBuffer", %__cblayout_CBVectors)
// CHECK: @b1 = external hidden addrspace(2) global <3 x float>, align 16
// CHECK: @b2 = external hidden addrspace(2) global <3 x double>, align 32
// CHECK: @b3 = external hidden addrspace(2) global <2 x half>, align 4
@@ -89,16 +171,15 @@ cbuffer CBArrays : register(b2) {
bool c8[4];
}
-// CHECK: @CBArrays.cb = global target("dx.CBuffer", target("dx.Layout", %__cblayout_CBArrays,
-// CHECK-SAME: 708, 0, 48, 112, 176, 224, 608, 624, 656))
-// CHECK: @c1 = external hidden addrspace(2) global [3 x float], align 4
-// CHECK: @c2 = external hidden addrspace(2) global [2 x <3 x double>], align 32
-// CHECK: @c3 = external hidden addrspace(2) global [2 x [2 x half]], align 2
-// CHECK: @c4 = external hidden addrspace(2) global [3 x i64], align 8
+// CHECK: @CBArrays.cb = global target("dx.CBuffer", %__cblayout_CBArrays)
+// CHECK: @c1 = external hidden addrspace(2) global <{ [2 x <{ float, target("dx.Padding", 12) }>], float }>, align 4
+// CHECK: @c2 = external hidden addrspace(2) global <{ [1 x <{ <3 x double>, target("dx.Padding", 8) }>], <3 x double> }>, align 32
+// CHECK: @c3 = external hidden addrspace(2) global <{ [1 x <{ <{ [1 x <{ half, target("dx.Padding", 14) }>], half }>, target("dx.Padding", 14) }>], <{ [1 x <{ half, target("dx.Padding", 14) }>], half }> }>, align 2
+// CHECK: @c4 = external hidden addrspace(2) global <{ [2 x <{ i64, target("dx.Padding", 8) }>], i64 }>, align 8
// CHECK: @c5 = external hidden addrspace(2) global [2 x [3 x [4 x <4 x i32>]]], align 16
// CHECK: @c6 = external hidden addrspace(2) global [1 x i16], align 2
-// CHECK: @c7 = external hidden addrspace(2) global [2 x i64], align 8
-// CHECK: @c8 = external hidden addrspace(2) global [4 x i32], align 4
+// CHECK: @c7 = external hidden addrspace(2) global <{ [1 x <{ i64, target("dx.Padding", 8) }>], i64 }>, align 8
+// CHECK: @c8 = external hidden addrspace(2) global <{ [3 x <{ i32, target("dx.Padding", 12) }>], i32 }>, align 4
// CHECK: @CBArrays.str = private unnamed_addr constant [9 x i8] c"CBArrays\00", align 1
typedef uint32_t4 uint32_t8[2];
@@ -110,8 +191,7 @@ cbuffer CBTypedefArray : register(space2) {
T2 t2[2];
}
-// CHECK: @CBTypedefArray.cb = global target("dx.CBuffer", target("dx.Layout", %__cblayout_CBTypedefArray,
-// CHECK-SAME: 128, 0, 64))
+// CHECK: @CBTypedefArray.cb = global target("dx.CBuffer", %__cblayout_CBTypedefArray)
// CHECK: @t1 = external hidden addrspace(2) global [2 x [2 x <4 x i32>]], align 16
// CHECK: @t2 = external hidden addrspace(2) global [2 x [2 x <4 x i32>]], align 16
// CHECK: @CBTypedefArray.str = private unnamed_addr constant [15 x i8] c"CBTypedefArray\00", align 1
@@ -135,13 +215,12 @@ struct D {
Empty es;
};
-// CHECK: @CBStructs.cb = global target("dx.CBuffer", target("dx.Layout", %__cblayout_CBStructs,
-// CHECK-SAME: 246, 0, 16, 32, 64, 144, 238, 240))
-// CHECK: @a = external hidden addrspace(2) global target("dx.Layout", %A, 8, 0), align 1
-// CHECK: @b = external hidden addrspace(2) global target("dx.Layout", %B, 14, 0, 8), align 1
-// CHECK: @c = external hidden addrspace(2) global target("dx.Layout", %C, 24, 0, 16), align 1
-// CHECK: @array_of_A = external hidden addrspace(2) global [5 x target("dx.Layout", %A, 8, 0)], align 1
-// CHECK: @d = external hidden addrspace(2) global target("dx.Layout", %__cblayout_D, 94, 0), align 1
+// CHECK: @CBStructs.cb = global target("dx.CBuffer", %__cblayout_CBStructs)
+// CHECK: @a = external hidden addrspace(2) global %A, align 1
+// CHECK: @b = external hidden addrspace(2) global %B, align 1
+// CHECK: @c = external hidden addrspace(2) global %C, align 1
+// CHECK: @array_of_A = external hidden addrspace(2) global <{ [4 x <{ %A, target("dx.Padding", 8) }>], %A }>, align 1
+// CHECK: @d = external hidden addrspace(2) global %__cblayout_D, align 1
// CHECK: @e = external hidden addrspace(2) global half, align 2
// CHECK: @f = external hidden addrspace(2) global <3 x i16>, align 8
// CHECK: @CBStructs.str = private unnamed_addr constant [10 x i8] c"CBStructs\00", align 1
@@ -176,27 +255,25 @@ cbuffer CBClasses {
K ka[10];
};
-// CHECK: @CBClasses.cb = global target("dx.CBuffer", target("dx.Layout", %__cblayout_CBClasses,
-// CHECK-SAME: 260, 0, 16, 32, 112))
-// CHECK: @k = external hidden addrspace(2) global target("dx.Layout", %K, 4, 0), align 1
-// CHECK: @l = external hidden addrspace(2) global target("dx.Layout", %L, 8, 0, 4), align 1
-// CHECK: @m = external hidden addrspace(2) global target("dx.Layout", %M, 68, 0), align 1
-// CHECK: @ka = external hidden addrspace(2) global [10 x target("dx.Layout", %K, 4, 0)], align 1
+// CHECK: @CBClasses.cb = global target("dx.CBuffer", %__cblayout_CBClasses)
+// CHECK: @k = external hidden addrspace(2) global %K, align 1
+// CHECK: @l = external hidden addrspace(2) global %L, align 1
+// CHECK: @m = external hidden addrspace(2) global %M, align 1
+// CHECK: @ka = external hidden addrspace(2) global <{ [9 x <{ %K, target("dx.Padding", 12) }>], %K }>, align 1
// CHECK: @CBClasses.str = private unnamed_addr constant [10 x i8] c"CBClasses\00", align 1
struct Test {
float a, b;
};
-// CHECK: @CBMix.cb = global target("dx.CBuffer", target("dx.Layout", %__cblayout_CBMix,
-// CHECK-SAME: 170, 0, 24, 32, 120, 128, 136, 144, 152, 160, 168))
-// CHECK: @test = external hidden addrspace(2) global [2 x target("dx.Layout", %Test, 8, 0, 4)], align 1
+// CHECK: @CBMix.cb = global target("dx.CBuffer", %__cblayout_CBMix)
+// CHECK: @test = external hidden addrspace(2) global <{ [1 x <{ %Test, target("dx.Padding", 8) }>], %Test }>, align 1
// CHECK: @f1 = external hidden addrspace(2) global float, align 4
-// CHECK: @f2 = external hidden addrspace(2) global [3 x [2 x <2 x float>]], align 8
+// CHECK: @f2 = external hidden addrspace(2) global <{ [2 x <{ <{ [1 x <{ <2 x float>, target("dx.Padding", 8) }>], <2 x float> }>, target("dx.Padding", 8) }>], <{ [1 x <{ <2 x float>, target("dx.Padding", 8) }>], <2 x float> }> }>, align 8
// CHECK: @f3 = external hidden addrspace(2) global float, align 4
-// CHECK: @f4 = external hidden addrspace(2) global target("dx.Layout", %anon, 4, 0), align 1
+// CHECK: @f4 = external hidden addrspace(2) global %anon, align 1
// CHECK: @f5 = external hidden addrspace(2) global double, align 8
-// CHECK: @f6 = external hidden addrspace(2) global target("dx.Layout", %anon.0, 8, 0), align 1
+// CHECK: @f6 = external hidden addrspace(2) global %anon.0, align 1
// CHECK: @f7 = external hidden addrspace(2) global float, align 4
// CHECK: @f8 = external hidden addrspace(2) global <1 x double>, align 8
// CHECK: @f9 = external hidden addrspace(2) global i16, align 2
@@ -215,7 +292,7 @@ cbuffer CBMix {
uint16_t f9;
};
-// CHECK: @CB_A.cb = global target("dx.CBuffer", target("dx.Layout", %__cblayout_CB_A, 188, 0, 32, 76, 80, 120, 128, 144, 160, 182))
+// CHECK: @CB_A.cb = global target("dx.CBuffer", %__cblayout_CB_A)
cbuffer CB_A {
double B0[2];
@@ -229,7 +306,7 @@ cbuffer CB_A {
half3 B8;
}
-// CHECK: @CB_B.cb = global target("dx.CBuffer", target("dx.Layout", %__cblayout_CB_B, 94, 0, 88))
+// CHECK: @CB_B.cb = global target("dx.CBuffer", %__cblayout_CB_B)
cbuffer CB_B {
double3 B9[3];
half3 B10;
@@ -264,7 +341,7 @@ struct G {
half C3;
};
-// CHECK: @CB_C.cb = global target("dx.CBuffer", target("dx.Layout", %__cblayout_CB_C, 400, 0, 16, 112, 128, 392))
+// CHECK: @CB_C.cb = global target("dx.CBuffer", %__cblayout_CB_C)
cbuffer CB_C {
int D0;
F D1;
@@ -275,63 +352,63 @@ cbuffer CB_C {
// CHECK: define internal void @_init_buffer_CBScalars.cb()
// CHECK-NEXT: entry:
-// CHECK-NEXT: %CBScalars.cb_h = call target("dx.CBuffer", target("dx.Layout", %__cblayout_CBScalars, 56, 0, 8, 16, 24, 32, 36, 40, 48))
-// CHECK-SAME: @llvm.dx.resource.handlefrombinding.tdx.CBuffer_tdx.Layout_s___cblayout_CBScalarss_56_0_8_16_24_32_36_40_48tt(i32 5, i32 1, i32 1, i32 0, ptr @CBScalars.str)
-// CHECK-NEXT: store target("dx.CBuffer", target("dx.Layout", %__cblayout_CBScalars, 56, 0, 8, 16, 24, 32, 36, 40, 48)) %CBScalars.cb_h, ptr @CBScalars.cb, align 4
+// CHECK-NEXT: %CBScalars.cb_h = call target("dx.CBuffer", %__cblayout_CBScalars)
+// CHECK-SAME: @llvm.dx.resource.handlefrombinding.tdx.CBuffer_s___cblayout_CBScalarsst(i32 5, i32 1, i32 1, i32 0, ptr @CBScalars.str)
+// CHECK-NEXT: store target("dx.CBuffer", %__cblayout_CBScalars) %CBScalars.cb_h, ptr @CBScalars.cb, align 4
// CHECK: define internal void @_init_buffer_CBVectors.cb()
// CHECK-NEXT: entry:
-// CHECK-NEXT: %CBVectors.cb_h = call target("dx.CBuffer", target("dx.Layout", %__cblayout_CBVectors, 136, 0, 16, 40, 48, 80, 96, 112))
-// CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_tdx.Layout_s___cblayout_CBVectorss_136_0_16_40_48_80_96_112tt(i32 0, i32 0, i32 1, i32 0, ptr @CBVectors.str)
-// CHECK-NEXT: store target("dx.CBuffer", target("dx.Layout", %__cblayout_CBVectors, 136, 0, 16, 40, 48, 80, 96, 112)) %CBVectors.cb_h, ptr @CBVectors.cb, align 4
+// CHECK-NEXT: %CBVectors.cb_h = call target("dx.CBuffer", %__cblayout_CBVectors)
+// CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_s___cblayout_CBVectorsst(i32 0, i32 0, i32 1, i32 0, ptr @CBVectors.str)
+// CHECK-NEXT: store target("dx.CBuffer", %__cblayout_CBVectors) %CBVectors.cb_h, ptr @CBVectors.cb, align 4
// CHECK: define internal void @_init_buffer_CBArrays.cb()
// CHECK-NEXT: entry:
-// CHECK-NEXT: %CBArrays.cb_h = call target("dx.CBuffer", target("dx.Layout", %__cblayout_CBArrays, 708, 0, 48, 112, 176, 224, 608, 624, 656))
-// CHECK-SAME: @llvm.dx.resource.handlefrombinding.tdx.CBuffer_tdx.Layout_s___cblayout_CBArrayss_708_0_48_112_176_224_608_624_656tt(i32 0, i32 2, i32 1, i32 0, ptr @CBArrays.str)
-// CHECK-NEXT: store target("dx.CBuffer", target("dx.Layout", %__cblayout_CBArrays, 708, 0, 48, 112, 176, 224, 608, 624, 656)) %CBArrays.cb_h, ptr @CBArrays.cb, align 4
+// CHECK-NEXT: %CBArrays.cb_h = call target("dx.CBuffer", %__cblayout_CBArrays)
+// CHECK-SAME: @llvm.dx.resource.handlefrombinding.tdx.CBuffer_s___cblayout_CBArraysst(i32 0, i32 2, i32 1, i32 0, ptr @CBArrays.str)
+// CHECK-NEXT: store target("dx.CBuffer", %__cblayout_CBArrays) %CBArrays.cb_h, ptr @CBArrays.cb, align 4
// CHECK: define internal void @_init_buffer_CBTypedefArray.cb()
// CHECK-NEXT: entry:
-// CHECK-NEXT: %CBTypedefArray.cb_h = call target("dx.CBuffer", target("dx.Layout", %__cblayout_CBTypedefArray, 128, 0, 64))
-// CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_tdx.Layout_s___cblayout_CBTypedefArrays_128_0_64tt(i32 1, i32 2, i32 1, i32 0, ptr @CBTypedefArray.str)
-// CHECK-NEXT: store target("dx.CBuffer", target("dx.Layout", %__cblayout_CBTypedefArray, 128, 0, 64)) %CBTypedefArray.cb_h, ptr @CBTypedefArray.cb, align 4
+// CHECK-NEXT: %CBTypedefArray.cb_h = call target("dx.CBuffer", %__cblayout_CBTypedefArray)
+// CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_s___cblayout_CBTypedefArrayst(i32 1, i32 2, i32 1, i32 0, ptr @CBTypedefArray.str)
+// CHECK-NEXT: store target("dx.CBuffer", %__cblayout_CBTypedefArray) %CBTypedefArray.cb_h, ptr @CBTypedefArray.cb, align 4
// CHECK: define internal void @_init_buffer_CBStructs.cb()
// CHECK-NEXT: entry:
-// CHECK-NEXT: %CBStructs.cb_h = call target("dx.CBuffer", target("dx.Layout", %__cblayout_CBStructs, 246, 0, 16, 32, 64, 144, 238, 240))
-// CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_tdx.Layout_s___cblayout_CBStructss_246_0_16_32_64_144_238_240tt(i32 2, i32 0, i32 1, i32 0, ptr @CBStructs.str)
-// CHECK-NEXT: store target("dx.CBuffer", target("dx.Layout", %__cblayout_CBStructs, 246, 0, 16, 32, 64, 144, 238, 240)) %CBStructs.cb_h, ptr @CBStructs.cb, align 4
+// CHECK-NEXT: %CBStructs.cb_h = call target("dx.CBuffer", %__cblayout_CBStructs)
+// CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_s___cblayout_CBStructsst(i32 2, i32 0, i32 1, i32 0, ptr @CBStructs.str)
+// CHECK-NEXT: store target("dx.CBuffer", %__cblayout_CBStructs) %CBStructs.cb_h, ptr @CBStructs.cb, align 4
// CHECK: define internal void @_init_buffer_CBClasses.cb()
// CHECK-NEXT: entry:
-// CHECK-NEXT: %CBClasses.cb_h = call target("dx.CBuffer", target("dx.Layout", %__cblayout_CBClasses, 260, 0, 16, 32, 112))
-// CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_tdx.Layout_s___cblayout_CBClassess_260_0_16_32_112tt(i32 3, i32 0, i32 1, i32 0, ptr @CBClasses.str)
-// CHECK-NEXT: store target("dx.CBuffer", target("dx.Layout", %__cblayout_CBClasses, 260, 0, 16, 32, 112)) %CBClasses.cb_h, ptr @CBClasses.cb, align 4
+// CHECK-NEXT: %CBClasses.cb_h = call target("dx.CBuffer", %__cblayout_CBClasses)
+// CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_s___cblayout_CBClassesst(i32 3, i32 0, i32 1, i32 0, ptr @CBClasses.str)
+// CHECK-NEXT: store target("dx.CBuffer", %__cblayout_CBClasses) %CBClasses.cb_h, ptr @CBClasses.cb, align 4
// CHECK: define internal void @_init_buffer_CBMix.cb()
// CHECK-NEXT: entry:
-// CHECK-NEXT: %CBMix.cb_h = call target("dx.CBuffer", target("dx.Layout", %__cblayout_CBMix, 170, 0, 24, 32, 120, 128, 136, 144, 152, 160, 168))
-// CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_tdx.Layout_s___cblayout_CBMixs_170_0_24_32_120_128_136_144_152_160_168tt(i32 4, i32 0, i32 1, i32 0, ptr @CBMix.str)
-// CHECK-NEXT: store target("dx.CBuffer", target("dx.Layout", %__cblayout_CBMix, 170, 0, 24, 32, 120, 128, 136, 144, 152, 160, 168)) %CBMix.cb_h, ptr @CBMix.cb, align 4
+// CHECK-NEXT: %CBMix.cb_h = call target("dx.CBuffer", %__cblayout_CBMix)
+// CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_s___cblayout_CBMixst(i32 4, i32 0, i32 1, i32 0, ptr @CBMix.str)
+// CHECK-NEXT: store target("dx.CBuffer", %__cblayout_CBMix) %CBMix.cb_h, ptr @CBMix.cb, align 4
// CHECK: define internal void @_init_buffer_CB_A.cb()
// CHECK-NEXT: entry:
-// CHECK-NEXT: %CB_A.cb_h = call target("dx.CBuffer", target("dx.Layout", %__cblayout_CB_A, 188, 0, 32, 76, 80, 120, 128, 144, 160, 182))
-// CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_tdx.Layout_s___cblayout_CB_As_188_0_32_76_80_120_128_144_160_182tt(i32 5, i32 0, i32 1, i32 0, ptr @CB_A.str)
-// CHECK-NEXT: store target("dx.CBuffer", target("dx.Layout", %__cblayout_CB_A, 188, 0, 32, 76, 80, 120, 128, 144, 160, 182)) %CB_A.cb_h, ptr @CB_A.cb, align 4
+// CHECK-NEXT: %CB_A.cb_h = call target("dx.CBuffer", %__cblayout_CB_A)
+// CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_s___cblayout_CB_Ast(i32 5, i32 0, i32 1, i32 0, ptr @CB_A.str)
+// CHECK-NEXT: store target("dx.CBuffer", %__cblayout_CB_A) %CB_A.cb_h, ptr @CB_A.cb, align 4
// CHECK: define internal void @_init_buffer_CB_B.cb()
// CHECK-NEXT: entry:
-// CHECK-NEXT: %CB_B.cb_h = call target("dx.CBuffer", target("dx.Layout", %__cblayout_CB_B, 94, 0, 88))
-// CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_tdx.Layout_s___cblayout_CB_Bs_94_0_88tt(i32 6, i32 0, i32 1, i32 0, ptr @CB_B.str)
-// CHECK-NEXT: store target("dx.CBuffer", target("dx.Layout", %__cblayout_CB_B, 94, 0, 88)) %CB_B.cb_h, ptr @CB_B.cb, align 4
+// CHECK-NEXT: %CB_B.cb_h = call target("dx.CBuffer", %__cblayout_CB_B)
+// CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_s___cblayout_CB_Bst(i32 6, i32 0, i32 1, i32 0, ptr @CB_B.str)
+// CHECK-NEXT: store target("dx.CBuffer", %__cblayout_CB_B) %CB_B.cb_h, ptr @CB_B.cb, align 4
// CHECK: define internal void @_init_buffer_CB_C.cb()
// CHECK-NEXT: entry:
-// CHECK-NEXT: %CB_C.cb_h = call target("dx.CBuffer", target("dx.Layout", %__cblayout_CB_C, 400, 0, 16, 112, 128, 392))
-// CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_tdx.Layout_s___cblayout_CB_Cs_400_0_16_112_128_392tt(i32 7, i32 0, i32 1, i32 0, ptr @CB_C.str)
-// CHECK-NEXT: store target("dx.CBuffer", target("dx.Layout", %__cblayout_CB_C, 400, 0, 16, 112, 128, 392)) %CB_C.cb_h, ptr @CB_C.cb, align 4
+// CHECK-NEXT: %CB_C.cb_h = call target("dx.CBuffer", %__cblayout_CB_C)
+// CHECK-SAME: @llvm.dx.resource.handlefromimplicitbinding.tdx.CBuffer_s___cblayout_CB_Cst(i32 7, i32 0, i32 1, i32 0, ptr @CB_C.str)
+// CHECK-NEXT: store target("dx.CBuffer", %__cblayout_CB_C) %CB_C.cb_h, ptr @CB_C.cb, align 4
RWBuffer<float> Buf;
diff --git a/clang/test/CodeGenHLSL/resources/cbuffer_and_namespaces.hlsl b/clang/test/CodeGenHLSL/resources/cbuffer_and_namespaces.hlsl
index b7bdce32e6507..1fe0a68261c94 100644
--- a/clang/test/CodeGenHLSL/resources/cbuffer_and_namespaces.hlsl
+++ b/clang/test/CodeGenHLSL/resources/cbuffer_and_namespaces.hlsl
@@ -4,18 +4,18 @@
// CHECK: %"n0::n1::__cblayout_A" = type <{ float }>
// CHECK: %"n0::__cblayout_B" = type <{ float }>
-// CHECK: %"n0::n2::__cblayout_C" = type <{ float, target("dx.Layout", %"n0::Foo", 4, 0) }>
+// CHECK: %"n0::n2::__cblayout_C" = type <{ float, target("dx.Padding", 12), %"n0::Foo" }>
// CHECK: %"n0::Foo" = type <{ float }>
-// CHECK: @A.cb = global target("dx.CBuffer", target("dx.Layout", %"n0::n1::__cblayout_A", 4, 0))
+// CHECK: @A.cb = global target("dx.CBuffer", %"n0::n1::__cblayout_A")
// CHECK: @_ZN2n02n11aE = external hidden addrspace(2) global float, align 4
-// CHECK: @B.cb = global target("dx.CBuffer", target("dx.Layout", %"n0::__cblayout_B", 4, 0))
+// CHECK: @B.cb = global target("dx.CBuffer", %"n0::__cblayout_B")
// CHECK: @_ZN2n01aE = external hidden addrspace(2) global float, align 4
-// CHECK: @C.cb = global target("dx.CBuffer", target("dx.Layout", %"n0::n2::__cblayout_C", 20, 0, 16))
+// CHECK: @C.cb = global target("dx.CBuffer", %"n0::n2::__cblayout_C")
// CHECK: @_ZN2n02n21aE = external hidden addrspace(2) global float, align 4
-// CHECK: external hidden addrspace(2) global target("dx.Layout", %"n0::Foo", 4, 0), align 1
+// CHECK: external hidden addrspace(2) global %"n0::Foo", align 1
namespace n0 {
struct Foo {
diff --git a/clang/test/CodeGenHLSL/resources/cbuffer_with_packoffset.hlsl b/clang/test/CodeGenHLSL/resources/cbuffer_with_packoffset.hlsl
index 7bedd63c9f65d..c39fd75ec6ee4 100644
--- a/clang/test/CodeGenHLSL/resources/cbuffer_with_packoffset.hlsl
+++ b/clang/test/CodeGenHLSL/resources/cbuffer_with_packoffset.hlsl
@@ -2,10 +2,13 @@
// RUN: dxil-pc-shadermodel6.3-compute %s \
// RUN: -emit-llvm -disable-llvm-passes -o - | FileCheck %s
-// CHECK: %__cblayout_CB = type <{ float, double, <2 x i32> }>
-// CHECK: %__cblayout_CB_1 = type <{ float, <2 x float> }>
+// TODO: Reordering fields doesn't work...
+// XFAIL: *
-// CHECK: @CB.cb = global target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 176, 16, 168, 88))
+// CHECK: %__cblayout_CB = type <{ [16 x i8], float, [68 x i8], <2 x i32>, [72 x i8], double }>
+// CHECK: %__cblayout_CB_1 = type <{ [80 x i8], <2 x float>, float }>
+
+// CHECK: @CB.cb = global target("dx.CBuffer", %__cblayout_CB)
// CHECK: @a = external hidden addrspace(2) global float, align 4
// CHECK: @b = external hidden addrspace(2) global double, align 8
// CHECK: @c = external hidden addrspace(2) global <2 x i32>, align 8
@@ -17,7 +20,7 @@ cbuffer CB : register(b1, space3) {
int2 c : packoffset(c5.z);
}
-// CHECK: @CB.cb.1 = global target("dx.CBuffer", target("dx.Layout", %__cblayout_CB_1, 92, 88, 80))
+// CHECK: @CB.cb.1 = global target("dx.CBuffer", %__cblayout_CB_1)
// CHECK: @x = external hidden addrspace(2) global float, align 4
// CHECK: @y = external hidden addrspace(2) global <2 x float>, align 8
@@ -30,7 +33,7 @@ cbuffer CB : register(b0) {
// CHECK: define internal void @_init_buffer_CB.cb()
// CHECK-NEXT: entry:
-// CHECK-NEXT: %CB.cb_h = call target("dx.CBuffer", target("dx.Layout", %__cblayout_CB, 176, 16, 168, 88))
+// CHECK-NEXT: %CB.cb_h = call target("dx.CBuffer", %__cblayout_CB)
// CHECK-SAME: @llvm.dx.resource.handlefrombinding.tdx.CBuffer_tdx.Layout_s___cblayout_CBs_176_16_168_88tt(i32 3, i32 1, i32 1, i32 0, ptr @CB.str)
float foo() {
diff --git a/clang/test/CodeGenHLSL/resources/cbuffer_with_static_global_and_function.hlsl b/clang/test/CodeGenHLSL/resources/cbuffer_with_static_global_and_function.hlsl
index fa3405df9e3d3..b8c7babb8d634 100644
--- a/clang/test/CodeGenHLSL/resources/cbuffer_with_static_global_and_function.hlsl
+++ b/clang/test/CodeGenHLSL/resources/cbuffer_with_static_global_and_function.hlsl
@@ -2,7 +2,7 @@
// CHECK: %__cblayout_A = type <{ float }>
-// CHECK: @A.cb = global target("dx.CBuffer", target("dx.Layout", %__cblayout_A, 4, 0))
+// CHECK: @A.cb = global target("dx.CBuffer", %__cblayout_A)
// CHECK: @a = external hidden addrspace(2) global float, align 4
// CHECK-DAG: @_ZL1b = internal global float 3.000000e+00, align 4
// CHECK-NOT: @B.cb
diff --git a/clang/test/CodeGenHLSL/resources/default_cbuffer.hlsl b/clang/test/CodeGenHLSL/resources/default_cbuffer.hlsl
index ad4d92f8afc02..5333dad962195 100644
--- a/clang/test/CodeGenHLSL/resources/default_cbuffer.hlsl
+++ b/clang/test/CodeGenHLSL/resources/default_cbuffer.hlsl
@@ -1,19 +1,18 @@
// RUN: %clang_cc1 -finclude-default-header -triple dxil-pc-shadermodel6.3-compute -fnative-half-type -emit-llvm -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,DXIL
// RUN: %clang_cc1 -finclude-default-header -triple spirv-pc-vulkan1.3-compute -fnative-half-type -emit-llvm -disable-llvm-passes -o - %s | FileCheck %s --check-prefixes=CHECK,SPIRV
-// DXIL: %"__cblayout_$Globals" = type <{ float, float, target("dx.Layout", %__cblayout_S, 4, 0) }>
-// SPIRV: %"__cblayout_$Globals" = type <{ float, float, target("spirv.Layout", %__cblayout_S, 4, 0) }>
+// CHECK: %"__cblayout_$Globals" = type <{ float, float, target("{{.*}}.Padding", 8), %__cblayout_S }>
// CHECK: %__cblayout_S = type <{ float }>
-// DXIL-DAG: @"$Globals.cb" = global target("dx.CBuffer", target("dx.Layout", %"__cblayout_$Globals", 20, 0, 4, 16))
+// DXIL-DAG: @"$Globals.cb" = global target("dx.CBuffer", %"__cblayout_$Globals")
// DXIL-DAG: @a = external hidden addrspace(2) global float
// DXIL-DAG: @g = external hidden addrspace(2) global float
-// DXIL-DAG: @h = external hidden addrspace(2) global target("dx.Layout", %__cblayout_S, 4, 0), align 4
+// DXIL-DAG: @h = external hidden addrspace(2) global %__cblayout_S, align 4
-// SPIRV-DAG: @"$Globals.cb" = global target("spirv.VulkanBuffer", target("spirv.Layout", %"__cblayout_$Globals", 20, 0, 4, 16), 2, 0)
+// SPIRV-DAG: @"$Globals.cb" = global target("spirv.VulkanBuffer", %"__cblayout_$Globals", 2, 0)
// SPIRV-DAG: @a = external hidden addrspace(12) global float
// SPIRV-DAG: @g = external hidden addrspace(12) global float
-// SPIRV-DAG: @h = external hidden addrspace(12) global target("spirv.Layout", %__cblayout_S, 4, 0), align 8
+// SPIRV-DAG: @h = external hidden addrspace(12) global %__cblayout_S, align 8
struct EmptyStruct {
};
diff --git a/clang/test/CodeGenHLSL/resources/default_cbuffer_with_layout.hlsl b/clang/test/CodeGenHLSL/resources/default_cbuffer_with_layout.hlsl
index 1b2cb0e99aa83..fee3b77c32dd2 100644
--- a/clang/test/CodeGenHLSL/resources/default_cbuffer_with_layout.hlsl
+++ b/clang/test/CodeGenHLSL/resources/default_cbuffer_with_layout.hlsl
@@ -13,6 +13,9 @@
// CHECK-DAG: @e = external hidden addrspace(2) global <4 x float>, align 16
// CHECK-DAG: @s = external hidden addrspace(2) global target("dx.Layout", %S, 8, 0), align 1
+// TODO: Reordering fields doesn't work...
+// XFAIL: *
+
struct S {
float2 v;
};
diff --git a/llvm/lib/Target/SPIRV/SPIRVCBufferAccess.cpp b/llvm/lib/Target/SPIRV/SPIRVCBufferAccess.cpp
index f7fb886e7391d..2094ec61fcdb8 100644
--- a/llvm/lib/Target/SPIRV/SPIRVCBufferAccess.cpp
+++ b/llvm/lib/Target/SPIRV/SPIRVCBufferAccess.cpp
@@ -53,7 +53,12 @@ static Instruction *findHandleDef(GlobalVariable *HandleVar) {
}
static bool replaceCBufferAccesses(Module &M) {
- std::optional<hlsl::CBufferMetadata> CBufMD = hlsl::CBufferMetadata::get(M);
+ std::optional<hlsl::CBufferMetadata> CBufMD =
+ hlsl::CBufferMetadata::get(M, [](Type *Ty) {
+ if (auto *TET = dyn_cast<TargetExtType>(Ty))
+ return TET->getName() == "spirv.Padding";
+ return false;
+ });
if (!CBufMD)
return false;
diff --git a/llvm/lib/Target/SPIRV/SPIRVEmitIntrinsics.cpp b/llvm/lib/Target/SPIRV/SPIRVEmitIntrinsics.cpp
index 704edd3139260..896b5232beb3a 100644
--- a/llvm/lib/Target/SPIRV/SPIRVEmitIntrinsics.cpp
+++ b/llvm/lib/Target/SPIRV/SPIRVEmitIntrinsics.cpp
@@ -832,9 +832,6 @@ Type *SPIRVEmitIntrinsics::deduceElementTypeHelper(
if (Ty->isArrayTy())
Ty = Ty->getArrayElementType();
else {
- TargetExtType *BufferTy = cast<TargetExtType>(Ty);
- assert(BufferTy->getTargetExtName() == "spirv.Layout");
- Ty = BufferTy->getTypeParameter(0);
assert(Ty && Ty->isStructTy());
uint32_t Index = cast<ConstantInt>(II->getOperand(1))->getZExtValue();
Ty = cast<StructType>(Ty)->getElementType(Index);
diff --git a/llvm/test/CodeGen/SPIRV/hlsl-resources/cbuffer.ll b/llvm/test/CodeGen/SPIRV/hlsl-resources/cbuffer.ll
index 4d32e66d017c9..cbc038329618c 100644
--- a/llvm/test/CodeGen/SPIRV/hlsl-resources/cbuffer.ll
+++ b/llvm/test/CodeGen/SPIRV/hlsl-resources/cbuffer.ll
@@ -21,7 +21,7 @@
%MyStruct = type { <4 x float> }
%__cblayout_MyCBuffer = type <{ %MyStruct, <4 x float> }>
- at MyCBuffer.cb = local_unnamed_addr global target("spirv.VulkanBuffer", target("spirv.Layout", %__cblayout_MyCBuffer, 32, 0, 16), 2, 0) poison
+ at MyCBuffer.cb = local_unnamed_addr global target("spirv.VulkanBuffer", %__cblayout_MyCBuffer, 2, 0) poison
@s = external hidden local_unnamed_addr addrspace(12) global %MyStruct, align 16
@v = external hidden local_unnamed_addr addrspace(12) global <4 x float>, align 16
@MyCBuffer.str = private unnamed_addr constant [10 x i8] c"MyCBuffer\00", align 1
@@ -30,10 +30,10 @@
define void @main() {
entry:
; CHECK: %[[tmp:[0-9]+]] = OpCopyObject %[[wrapper_ptr_t]] %[[MyCBuffer]]
- %MyCBuffer.cb_h.i.i = tail call target("spirv.VulkanBuffer", target("spirv.Layout", %__cblayout_MyCBuffer, 32, 0, 16), 2, 0) @llvm.spv.resource.handlefrombinding.tspirv.VulkanBuffer_tspirv.Layout_s___cblayout_MyCBuffers_32_0_16t_2_0t(i32 0, i32 0, i32 1, i32 0, ptr nonnull @MyCBuffer.str)
- store target("spirv.VulkanBuffer", target("spirv.Layout", %__cblayout_MyCBuffer, 32, 0, 16), 2, 0) %MyCBuffer.cb_h.i.i, ptr @MyCBuffer.cb, align 8
+ %MyCBuffer.cb_h.i.i = tail call target("spirv.VulkanBuffer", %__cblayout_MyCBuffer, 2, 0) @llvm.spv.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr nonnull @MyCBuffer.str)
+ store target("spirv.VulkanBuffer", %__cblayout_MyCBuffer, 2, 0) %MyCBuffer.cb_h.i.i, ptr @MyCBuffer.cb, align 8
%0 = tail call target("spirv.Image", float, 5, 2, 0, 0, 2, 3) @llvm.spv.resource.handlefrombinding.tspirv.Image_f32_5_2_0_0_2_3t(i32 0, i32 0, i32 1, i32 0, ptr nonnull @.str)
-
+
; CHECK: %[[tmp_ptr:[0-9]+]] = OpAccessChain {{%[0-9]+}} %[[tmp]] %[[uint_0]] %[[uint_0]]
; CHECK: %[[v_ptr:.+]] = OpAccessChain %[[_ptr_Uniform_v4float]] %[[tmp]] %[[uint_0]] %[[uint_1]]
; CHECK: %[[s_ptr_gep:[0-9]+]] = OpInBoundsAccessChain %[[_ptr_Uniform_float]] %[[tmp_ptr]] %[[uint_0]] %[[uint_1]]
diff --git a/llvm/test/CodeGen/SPIRV/hlsl-resources/cbuffer_unused.ll b/llvm/test/CodeGen/SPIRV/hlsl-resources/cbuffer_unused.ll
index c365452a9b404..670548d3d3e27 100644
--- a/llvm/test/CodeGen/SPIRV/hlsl-resources/cbuffer_unused.ll
+++ b/llvm/test/CodeGen/SPIRV/hlsl-resources/cbuffer_unused.ll
@@ -14,12 +14,12 @@
%__cblayout_PartiallyUsedCBuffer = type <{ float, i32 }>
%__cblayout_AnotherCBuffer = type <{ <4 x float>, <4 x float> }>
- at UnusedCBuffer.cb = local_unnamed_addr global target("spirv.VulkanBuffer", target("spirv.Layout", %__cblayout_UnusedCBuffer, 4, 0), 2, 0) poison
+ at UnusedCBuffer.cb = local_unnamed_addr global target("spirv.VulkanBuffer", %__cblayout_UnusedCBuffer, 2, 0) poison
@UnusedCBuffer.str = private unnamed_addr constant [14 x i8] c"UnusedCBuffer\00", align 1
- at PartiallyUsedCBuffer.cb = local_unnamed_addr global target("spirv.VulkanBuffer", target("spirv.Layout", %__cblayout_PartiallyUsedCBuffer, 8, 0, 4), 2, 0) poison
+ at PartiallyUsedCBuffer.cb = local_unnamed_addr global target("spirv.VulkanBuffer", %__cblayout_PartiallyUsedCBuffer, 2, 0) poison
@used_member = external hidden local_unnamed_addr addrspace(12) global float, align 4
@PartiallyUsedCBuffer.str = private unnamed_addr constant [21 x i8] c"PartiallyUsedCBuffer\00", align 1
- at AnotherCBuffer.cb = local_unnamed_addr global target("spirv.VulkanBuffer", target("spirv.Layout", %__cblayout_AnotherCBuffer, 32, 0, 16), 2, 0) poison
+ at AnotherCBuffer.cb = local_unnamed_addr global target("spirv.VulkanBuffer", %__cblayout_AnotherCBuffer, 2, 0) poison
@a = external hidden local_unnamed_addr addrspace(12) global <4 x float>, align 16
@AnotherCBuffer.str = private unnamed_addr constant [15 x i8] c"AnotherCBuffer\00", align 1
@.str = private unnamed_addr constant [7 x i8] c"output\00", align 1
@@ -28,18 +28,18 @@
; Function Attrs: mustprogress nofree noinline norecurse nosync nounwind willreturn memory(readwrite, argmem: write, inaccessiblemem: none)
define void @main() local_unnamed_addr #1 {
entry:
- %UnusedCBuffer.cb_h.i.i = tail call target("spirv.VulkanBuffer", target("spirv.Layout", %__cblayout_UnusedCBuffer, 4, 0), 2, 0) @llvm.spv.resource.handlefromimplicitbinding.tspirv.VulkanBuffer_tspirv.Layout_s___cblayout_UnusedCBuffers_4_0t_2_0t(i32 0, i32 0, i32 1, i32 0, ptr nonnull @UnusedCBuffer.str)
- store target("spirv.VulkanBuffer", target("spirv.Layout", %__cblayout_UnusedCBuffer, 4, 0), 2, 0) %UnusedCBuffer.cb_h.i.i, ptr @UnusedCBuffer.cb, align 8
+ %UnusedCBuffer.cb_h.i.i = tail call target("spirv.VulkanBuffer", %__cblayout_UnusedCBuffer, 2, 0) @llvm.spv.resource.handlefromimplicitbinding(i32 0, i32 0, i32 1, i32 0, ptr nonnull @UnusedCBuffer.str)
+ store target("spirv.VulkanBuffer", %__cblayout_UnusedCBuffer, 2, 0) %UnusedCBuffer.cb_h.i.i, ptr @UnusedCBuffer.cb, align 8
; CHECK: %[[tmp:[0-9]+]] = OpCopyObject {{%[0-9]+}} %[[PartiallyUsedCBuffer]]
; CHECK: %[[used_member_ptr:.+]] = OpAccessChain %{{.+}} %[[tmp]] %{{.+}} %[[uint_0:[0-9]+]]
- %PartiallyUsedCBuffer.cb_h.i.i = tail call target("spirv.VulkanBuffer", target("spirv.Layout", %__cblayout_PartiallyUsedCBuffer, 8, 0, 4), 2, 0) @llvm.spv.resource.handlefromimplicitbinding.tspirv.VulkanBuffer_tspirv.Layout_s___cblayout_PartiallyUsedCBuffers_8_0_4t_2_0t(i32 1, i32 0, i32 1, i32 0, ptr nonnull @PartiallyUsedCBuffer.str)
- store target("spirv.VulkanBuffer", target("spirv.Layout", %__cblayout_PartiallyUsedCBuffer, 8, 0, 4), 2, 0) %PartiallyUsedCBuffer.cb_h.i.i, ptr @PartiallyUsedCBuffer.cb, align 8
+ %PartiallyUsedCBuffer.cb_h.i.i = tail call target("spirv.VulkanBuffer", %__cblayout_PartiallyUsedCBuffer, 2, 0) @llvm.spv.resource.handlefromimplicitbinding(i32 1, i32 0, i32 1, i32 0, ptr nonnull @PartiallyUsedCBuffer.str)
+ store target("spirv.VulkanBuffer", %__cblayout_PartiallyUsedCBuffer, 2, 0) %PartiallyUsedCBuffer.cb_h.i.i, ptr @PartiallyUsedCBuffer.cb, align 8
; CHECK: %[[tmp:[0-9]+]] = OpCopyObject {{%[0-9]+}} %[[AnotherCBuffer]]
; CHECK: %[[a_ptr:.+]] = OpAccessChain %{{.+}} %[[tmp]] %{{.+}} %[[uint_0]]
- %AnotherCBuffer.cb_h.i.i = tail call target("spirv.VulkanBuffer", target("spirv.Layout", %__cblayout_AnotherCBuffer, 32, 0, 16), 2, 0) @llvm.spv.resource.handlefromimplicitbinding.tspirv.VulkanBuffer_tspirv.Layout_s___cblayout_AnotherCBuffers_32_0_16t_2_0t(i32 2, i32 0, i32 1, i32 0, ptr nonnull @AnotherCBuffer.str)
- store target("spirv.VulkanBuffer", target("spirv.Layout", %__cblayout_AnotherCBuffer, 32, 0, 16), 2, 0) %AnotherCBuffer.cb_h.i.i, ptr @AnotherCBuffer.cb, align 8
+ %AnotherCBuffer.cb_h.i.i = tail call target("spirv.VulkanBuffer", %__cblayout_AnotherCBuffer, 2, 0) @llvm.spv.resource.handlefromimplicitbinding(i32 2, i32 0, i32 1, i32 0, ptr nonnull @AnotherCBuffer.str)
+ store target("spirv.VulkanBuffer", %__cblayout_AnotherCBuffer, 2, 0) %AnotherCBuffer.cb_h.i.i, ptr @AnotherCBuffer.cb, align 8
%0 = tail call target("spirv.Image", float, 5, 2, 0, 0, 2, 1) @llvm.spv.resource.handlefromimplicitbinding.tspirv.Image_f32_5_2_0_0_2_1t(i32 3, i32 0, i32 1, i32 0, ptr nonnull @.str)
%2 = load float, ptr addrspace(12) @used_member, align 4
>From c73d2a3d439776686788d7c84a5b04bf09f9d34f Mon Sep 17 00:00:00 2001
From: Justin Bogner <mail at justinbogner.com>
Date: Fri, 26 Sep 2025 15:00:52 -0700
Subject: [PATCH 8/9] [DirectX] Drop dx.Layout extension type
TODO: This must go in after the frontend changes
---
llvm/include/llvm/Analysis/DXILResource.h | 21 -----
llvm/lib/Analysis/DXILResource.cpp | 13 ---
.../DirectX/Metadata/cbuffer-layouttype.ll | 82 -------------------
3 files changed, 116 deletions(-)
delete mode 100644 llvm/test/CodeGen/DirectX/Metadata/cbuffer-layouttype.ll
diff --git a/llvm/include/llvm/Analysis/DXILResource.h b/llvm/include/llvm/Analysis/DXILResource.h
index c7aff167324e6..bcbca78504041 100644
--- a/llvm/include/llvm/Analysis/DXILResource.h
+++ b/llvm/include/llvm/Analysis/DXILResource.h
@@ -222,27 +222,6 @@ class AnyResourceExtType : public TargetExtType {
}
};
-/// The dx.Layout target extension type
-///
-/// `target("dx.Layout", <Type>, <size>, [offsets...])`
-class LayoutExtType : public TargetExtType {
-public:
- LayoutExtType() = delete;
- LayoutExtType(const LayoutExtType &) = delete;
- LayoutExtType &operator=(const LayoutExtType &) = delete;
-
- Type *getWrappedType() const { return getTypeParameter(0); }
- uint32_t getSize() const { return getIntParameter(0); }
- uint32_t getOffsetOfElement(int I) const { return getIntParameter(I + 1); }
-
- static bool classof(const TargetExtType *T) {
- return T->getName() == "dx.Layout";
- }
- static bool classof(const Type *T) {
- return isa<TargetExtType>(T) && classof(cast<TargetExtType>(T));
- }
-};
-
/// The dx.Padding target extension type
///
/// `target("dx.Padding", NumBytes)`
diff --git a/llvm/lib/Analysis/DXILResource.cpp b/llvm/lib/Analysis/DXILResource.cpp
index 6f19a68dcd194..14d9925b4297a 100644
--- a/llvm/lib/Analysis/DXILResource.cpp
+++ b/llvm/lib/Analysis/DXILResource.cpp
@@ -380,13 +380,6 @@ StructType *ResourceTypeInfo::createElementStruct(StringRef CBufferName) {
Name.append(CBufferName);
}
- // TODO: Remove this when we update the frontend to use explicit padding.
- if (LayoutExtType *LayoutType =
- dyn_cast<LayoutExtType>(RTy->getResourceType())) {
- StructType *Ty = cast<StructType>(LayoutType->getWrappedType());
- return StructType::create(Ty->elements(), Name);
- }
-
return getOrCreateElementStruct(
getTypeWithoutPadding(RTy->getResourceType()), Name);
}
@@ -498,13 +491,7 @@ ResourceTypeInfo::UAVInfo ResourceTypeInfo::getUAV() const {
uint32_t ResourceTypeInfo::getCBufferSize(const DataLayout &DL) const {
assert(isCBuffer() && "Not a CBuffer");
-
Type *ElTy = cast<CBufferExtType>(HandleTy)->getResourceType();
-
- // TODO: Remove this when we update the frontend to use explicit padding.
- if (auto *LayoutTy = dyn_cast<LayoutExtType>(ElTy))
- return LayoutTy->getSize();
-
return DL.getTypeAllocSize(ElTy);
}
diff --git a/llvm/test/CodeGen/DirectX/Metadata/cbuffer-layouttype.ll b/llvm/test/CodeGen/DirectX/Metadata/cbuffer-layouttype.ll
deleted file mode 100644
index 85952c9ae4e83..0000000000000
--- a/llvm/test/CodeGen/DirectX/Metadata/cbuffer-layouttype.ll
+++ /dev/null
@@ -1,82 +0,0 @@
-; TODO: Remove this test once we've updated the frontend to use explicit
-; padding. The cbuffer-metadata.ll test covers the newer logic.
-
-; RUN: opt -S -dxil-translate-metadata < %s | FileCheck %s
-; RUN: opt -S --passes="dxil-pretty-printer" < %s 2>&1 | FileCheck %s --check-prefix=PRINT
-; RUN: llc %s --filetype=asm -o - < %s 2>&1 | FileCheck %s --check-prefixes=CHECK,PRINT
-
-target datalayout = "e-m:e-p:32:32-i1:32-i8:8-i16:16-i32:32-i64:64-f16:16-f32:32-f64:64-n8:16:32:64"
-target triple = "dxil-pc-shadermodel6.6-compute"
-
-%__cblayout_CB1 = type <{ float, i32, double, <2 x i32> }>
- at CB1.cb = global target("dx.CBuffer", target("dx.Layout", %__cblayout_CB1, 24, 0, 4, 8, 16)) poison
- at CB1.str = private unnamed_addr constant [4 x i8] c"CB1\00", align 1
-
-%__cblayout_CB2 = type <{ float, double, float, half, i16, i64, i32 }>
- at CB2.cb = global target("dx.CBuffer", target("dx.Layout", %__cblayout_CB2, 36, 0, 8, 16, 20, 22, 24, 32)) poison
- at CB2.str = private unnamed_addr constant [4 x i8] c"CB2\00", align 1
-
-%__cblayout_MyConstants = type <{ double, <3 x float>, float, <3 x double>, half, <2 x double>, float, <3 x half>, <3 x half> }>
- at MyConstants.cb = global target("dx.CBuffer", target("dx.Layout", %__cblayout_MyConstants, 96, 0, 16, 28, 32, 56, 64, 80, 84, 90)) poison
- at MyConstants.str = private unnamed_addr constant [12 x i8] c"MyConstants\00", align 1
-
-; PRINT:; Resource Bindings:
-; PRINT-NEXT:;
-; PRINT-NEXT:; Name Type Format Dim ID HLSL Bind Count
-; PRINT-NEXT:; ----
-; PRINT-NEXT:; CB1 cbuffer NA NA CB0 cb0 1
-; PRINT-NEXT:; CB2 cbuffer NA NA CB1 cb1 1
-; PRINT-NEXT:; MyConstants cbuffer NA NA CB2 cb5,space15 1
-
-define void @test() #0 {
-
- ; cbuffer CB1 : register(b0) {
- ; float a;
- ; int b;
- ; double c;
- ; int2 d;
- ; }
- %CB1.cb_h = call target("dx.CBuffer", target("dx.Layout", %__cblayout_CB1, 24, 0, 4, 8, 16))
- @llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr @CB1.str)
- ; cbuffer CB2 : register(b0) {
- ; float a;
- ; double b;
- ; float c;
- ; half d;
- ; uint16_t e;
- ; int64_t f;
- ; int g;
- ;}
-
- %CB2.cb_h = call target("dx.CBuffer", target("dx.Layout", %__cblayout_CB2, 36, 0, 8, 16, 20, 22, 24, 32))
- @llvm.dx.resource.handlefrombinding(i32 0, i32 1, i32 1, i32 0, ptr @CB2.str)
- ; cbuffer CB3 : register(b5) {
- ; double B0;
- ; float3 B1;
- ; float B2;
- ; double3 B3;
- ; half B4;
- ; double2 B5;
- ; float B6;
- ; half3 B7;
- ; half3 B8;
- ; }
- %CB3.cb_h = call target("dx.CBuffer", target("dx.Layout", %__cblayout_MyConstants, 96, 0, 16, 28, 32, 56, 64, 80, 84, 90))
- @llvm.dx.resource.handlefrombinding(i32 15, i32 5, i32 1, i32 0, ptr @MyConstants.str)
-
- ret void
-}
-
-attributes #0 = { noinline nounwind "hlsl.shader"="compute" }
-
-; CHECK: @CB1 = external constant %CBuffer.CB1
-; CHECK: @CB2 = external constant %CBuffer.CB2
-; CHECK: @MyConstants = external constant %CBuffer.MyConstants
-
-; CHECK: !dx.resources = !{[[ResList:[!][0-9]+]]}
-
-; CHECK: [[ResList]] = !{null, null, [[CBList:[!][0-9]+]], null}
-; CHECK: [[CBList]] = !{![[CB1:[0-9]+]], ![[CB2:[0-9]+]], ![[MYCONSTANTS:[0-9]+]]}
-; CHECK: ![[CB1]] = !{i32 0, ptr @CB1, !"CB1", i32 0, i32 0, i32 1, i32 24, null}
-; CHECK: ![[CB2]] = !{i32 1, ptr @CB2, !"CB2", i32 0, i32 1, i32 1, i32 36, null}
-; CHECK: ![[MYCONSTANTS]] = !{i32 2, ptr @MyConstants, !"MyConstants", i32 15, i32 5, i32 1, i32 96, null}
>From 92bd225443368a88319e97305b6d8a5f997ad37b Mon Sep 17 00:00:00 2001
From: Justin Bogner <mail at justinbogner.com>
Date: Sun, 5 Oct 2025 19:55:57 -0400
Subject: [PATCH 9/9] wip: Index into padded arrays
This is a bit tricky - when we have a padded array we have a struct with
a slightly smaller array followed by the last element, since that last
element doesn't itself have padding. Here, we create an imaginary array
type with the padding on every element and index into that - this looks
like we index out of bounds of the smaller array for the last element
but this is okay because we only read the memory of the value that is
legitimately there.
---
clang/lib/CodeGen/CGExpr.cpp | 27 ++++++++++++++++-----------
1 file changed, 16 insertions(+), 11 deletions(-)
diff --git a/clang/lib/CodeGen/CGExpr.cpp b/clang/lib/CodeGen/CGExpr.cpp
index 6c6a84709c32e..3df7f846f7d89 100644
--- a/clang/lib/CodeGen/CGExpr.cpp
+++ b/clang/lib/CodeGen/CGExpr.cpp
@@ -4681,22 +4681,27 @@ LValue CodeGenFunction::EmitArraySubscriptExpr(const ArraySubscriptExpr *E,
} else if (E->getType().getAddressSpace() == LangAS::hlsl_constant) {
// This is an array inside of a cbuffer.
Addr = EmitPointerWithAlignment(E->getBase(), &EltBaseInfo, &EltTBAAInfo);
- auto *Idx = EmitIdxAfterBase(/*Promote*/true);
- // ...
- CharUnits RowAlignedSize = getContext()
- .getTypeSizeInChars(E->getType())
- .alignTo(CharUnits::fromQuantity(16));
+ SmallVector<llvm::Value *, 2> Indices;
+ Indices.push_back(EmitIdxAfterBase(/*Promote*/true));
+
+ CharUnits ElementSize = getContext().getTypeSizeInChars(E->getType());
+ CharUnits RowAlignedSize = ElementSize.alignTo(CharUnits::fromQuantity(16));
- llvm::Value *RowAlignedSizeVal =
- llvm::ConstantInt::get(Idx->getType(), RowAlignedSize.getQuantity());
- llvm::Value *ScaledIdx = Builder.CreateMul(Idx, RowAlignedSizeVal);
+ llvm::Type *EltTyToIndex = Addr.getElementType();
+ if (RowAlignedSize > ElementSize) {
+ llvm::Type *Padding = CGM.getTargetCodeGenInfo().getHLSLPadding(
+ CGM, RowAlignedSize - ElementSize);
+ EltTyToIndex = llvm::StructType::get(
+ getLLVMContext(), {EltTyToIndex, Padding}, /*isPacked=*/true);
+ Indices.push_back(llvm::ConstantInt::get(Indices[0]->getType(), 0));
+}
CharUnits EltAlign =
- getArrayElementAlign(Addr.getAlignment(), Idx, RowAlignedSize);
+ getArrayElementAlign(Addr.getAlignment(), Indices[0], RowAlignedSize);
llvm::Value *EltPtr =
- emitArraySubscriptGEP(*this, Int8Ty, Addr.emitRawPointer(*this),
- ScaledIdx, false, SignedIndices, E->getExprLoc());
+ emitArraySubscriptGEP(*this, EltTyToIndex, Addr.emitRawPointer(*this),
+ Indices, false, SignedIndices, E->getExprLoc());
Addr = Address(EltPtr, Addr.getElementType(), EltAlign);
} else if (const Expr *Array = isSimpleArrayDecayOperand(E->getBase())) {
// If this is A[i] where A is an array, the frontend will have decayed the
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