[clang] [llvm] [HLSL][SPIRV][DXIL] Implement `WaveActiveSum` intrinsic (PR #118580)
via cfe-commits
cfe-commits at lists.llvm.org
Wed Dec 4 13:50:40 PST 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-backend-x86
Author: Adam Yang (adam-yang)
<details>
<summary>Changes</summary>
``` - add clang builtin to Builtins.td
- link builtin in hlsl_intrinsics
- add codegen for spirv intrinsic and two directx intrinsics to retain
signedness information of the operands in CGBuiltin.cpp
- add semantic analysis in SemaHLSL.cpp
- add lowering of spirv intrinsic to spirv backend in
SPIRVInstructionSelector.cpp
- add lowering of directx intrinsics to WaveActiveOp dxil op in
DXIL.td
- add test cases to illustrate passespendent pr merges.
```
Resolves #<!-- -->70106
---
Patch is 29.70 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/118580.diff
14 Files Affected:
- (modified) clang/include/clang/Basic/Builtins.td (+6)
- (modified) clang/include/clang/Basic/DiagnosticSemaKinds.td (+2)
- (modified) clang/lib/CodeGen/CGBuiltin.cpp (+34)
- (modified) clang/lib/Headers/hlsl/hlsl_intrinsics.h (+99)
- (modified) clang/lib/Sema/SemaHLSL.cpp (+31)
- (added) clang/test/CodeGenHLSL/builtins/WaveActiveSum.hlsl (+45)
- (added) clang/test/SemaHLSL/BuiltIns/WaveActiveSum-errors.hlsl (+28)
- (modified) llvm/include/llvm/IR/IntrinsicsDirectX.td (+2)
- (modified) llvm/include/llvm/IR/IntrinsicsSPIRV.td (+1)
- (modified) llvm/lib/Target/DirectX/DXIL.td (+26)
- (modified) llvm/lib/Target/DirectX/DirectXTargetTransformInfo.cpp (+2)
- (modified) llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp (+30)
- (added) llvm/test/CodeGen/DirectX/WaveActiveSum.ll (+143)
- (added) llvm/test/CodeGen/SPIRV/hlsl-intrinsics/WaveActiveSum.ll (+41)
``````````diff
diff --git a/clang/include/clang/Basic/Builtins.td b/clang/include/clang/Basic/Builtins.td
index e2c3d3c535571c..bf8d7241e4b7bc 100644
--- a/clang/include/clang/Basic/Builtins.td
+++ b/clang/include/clang/Basic/Builtins.td
@@ -4774,6 +4774,12 @@ def HLSLWaveActiveCountBits : LangBuiltin<"HLSL_LANG"> {
let Prototype = "unsigned int(bool)";
}
+def HLSLWaveActiveSum : LangBuiltin<"HLSL_LANG"> {
+ let Spellings = ["__builtin_hlsl_wave_active_sum"];
+ let Attributes = [NoThrow, Const];
+ let Prototype = "void (...)";
+}
+
def HLSLWaveGetLaneIndex : LangBuiltin<"HLSL_LANG"> {
let Spellings = ["__builtin_hlsl_wave_get_lane_index"];
let Attributes = [NoThrow, Const];
diff --git a/clang/include/clang/Basic/DiagnosticSemaKinds.td b/clang/include/clang/Basic/DiagnosticSemaKinds.td
index 8020be6c57bcfb..d83b433447e2cc 100644
--- a/clang/include/clang/Basic/DiagnosticSemaKinds.td
+++ b/clang/include/clang/Basic/DiagnosticSemaKinds.td
@@ -9272,6 +9272,8 @@ def err_typecheck_expect_scalar_or_vector : Error<
"a vector of such type is required">;
def err_typecheck_expect_any_scalar_or_vector : Error<
"invalid operand of type %0 where a scalar or vector is required">;
+def err_typecheck_expect_scalar_or_vector_not_type : Error<
+ "invalid operand of type %0">;
def err_typecheck_expect_flt_or_vector : Error<
"invalid operand of type %0 where floating, complex or "
"a vector of such types is required">;
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index 7588f8427cdd38..2fa044c0439e66 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -19053,6 +19053,23 @@ static Intrinsic::ID getFirstBitHighIntrinsic(CGHLSLRuntime &RT, QualType QT) {
return RT.getFirstBitUHighIntrinsic();
}
+// Return wave active sum that corresponds to the QT scalar type
+static Intrinsic::ID getWaveActiveSumIntrinsic(llvm::Triple::ArchType Arch,
+ CGHLSLRuntime &RT, QualType QT) {
+ switch (Arch) {
+ case llvm::Triple::spirv:
+ return llvm::Intrinsic::spv_wave_active_sum;
+ case llvm::Triple::dxil: {
+ if (QT->isUnsignedIntegerType())
+ return llvm::Intrinsic::dx_wave_active_usum;
+ return llvm::Intrinsic::dx_wave_active_sum;
+ }
+ default:
+ llvm_unreachable("Intrinsic WaveActiveSum"
+ " not supported by target architecture");
+ }
+}
+
Value *CodeGenFunction::EmitHLSLBuiltinExpr(unsigned BuiltinID,
const CallExpr *E,
ReturnValueSlot ReturnValue) {
@@ -19362,6 +19379,23 @@ case Builtin::BI__builtin_hlsl_elementwise_isinf: {
Intrinsic::getOrInsertDeclaration(&CGM.getModule(), ID),
ArrayRef{OpExpr});
}
+ case Builtin::BI__builtin_hlsl_wave_active_sum: {
+ // Due to the use of variadic arguments, explicitly retreive argument
+ Value *OpExpr = EmitScalarExpr(E->getArg(0));
+ llvm::FunctionType *FT = llvm::FunctionType::get(
+ OpExpr->getType(), ArrayRef{OpExpr->getType()}, false);
+ Intrinsic::ID IID = getWaveActiveSumIntrinsic(
+ getTarget().getTriple().getArch(), CGM.getHLSLRuntime(),
+ E->getArg(0)->getType());
+
+ // Get overloaded name
+ std::string Name =
+ Intrinsic::getName(IID, ArrayRef{OpExpr->getType()}, &CGM.getModule());
+ return EmitRuntimeCall(CGM.CreateRuntimeFunction(FT, Name, {},
+ /*Local=*/false,
+ /*AssumeConvergent=*/true),
+ ArrayRef{OpExpr}, "hlsl.wave.active.sum");
+ }
case Builtin::BI__builtin_hlsl_wave_get_lane_index: {
// We don't define a SPIR-V intrinsic, instead it is a SPIR-V built-in
// defined in SPIRVBuiltins.td. So instead we manually get the matching name
diff --git a/clang/lib/Headers/hlsl/hlsl_intrinsics.h b/clang/lib/Headers/hlsl/hlsl_intrinsics.h
index 1126e13600f8af..aaea4db70540d3 100644
--- a/clang/lib/Headers/hlsl/hlsl_intrinsics.h
+++ b/clang/lib/Headers/hlsl/hlsl_intrinsics.h
@@ -2349,6 +2349,105 @@ __attribute__((convergent)) double3 WaveReadLaneAt(double3, int32_t);
_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_read_lane_at)
__attribute__((convergent)) double4 WaveReadLaneAt(double4, int32_t);
+//===----------------------------------------------------------------------===//
+// WaveActiveSum builtins
+//===----------------------------------------------------------------------===//
+
+_HLSL_16BIT_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) half WaveActiveSum(half);
+_HLSL_16BIT_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) half2 WaveActiveSum(half2);
+_HLSL_16BIT_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) half3 WaveActiveSum(half3);
+_HLSL_16BIT_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) half4 WaveActiveSum(half4);
+
+#ifdef __HLSL_ENABLE_16_BIT
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) int16_t WaveActiveSum(int16_t);
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) int16_t2 WaveActiveSum(int16_t2);
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) int16_t3 WaveActiveSum(int16_t3);
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) int16_t4 WaveActiveSum(int16_t4);
+
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) uint16_t WaveActiveSum(uint16_t);
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) uint16_t2 WaveActiveSum(uint16_t2);
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) uint16_t3 WaveActiveSum(uint16_t3);
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) uint16_t4 WaveActiveSum(uint16_t4);
+#endif
+
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) int WaveActiveSum(int);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) int2 WaveActiveSum(int2);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) int3 WaveActiveSum(int3);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) int4 WaveActiveSum(int4);
+
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) uint WaveActiveSum(uint);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) uint2 WaveActiveSum(uint2);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) uint3 WaveActiveSum(uint3);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) uint4 WaveActiveSum(uint4);
+
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) int64_t WaveActiveSum(int64_t);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) int64_t2 WaveActiveSum(int64_t2);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) int64_t3 WaveActiveSum(int64_t3);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) int64_t4 WaveActiveSum(int64_t4);
+
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) uint64_t WaveActiveSum(uint64_t);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) uint64_t2 WaveActiveSum(uint64_t2);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) uint64_t3 WaveActiveSum(uint64_t3);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) uint64_t4 WaveActiveSum(uint64_t4);
+
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) float WaveActiveSum(float);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) float2 WaveActiveSum(float2);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) float3 WaveActiveSum(float3);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) float4 WaveActiveSum(float4);
+
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) double WaveActiveSum(double);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) double2 WaveActiveSum(double2);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) double3 WaveActiveSum(double3);
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_sum)
+__attribute__((convergent)) double4 WaveActiveSum(double4);
+
//===----------------------------------------------------------------------===//
// sign builtins
//===----------------------------------------------------------------------===//
diff --git a/clang/lib/Sema/SemaHLSL.cpp b/clang/lib/Sema/SemaHLSL.cpp
index 88db3e12541193..4d04c0e9e6150f 100644
--- a/clang/lib/Sema/SemaHLSL.cpp
+++ b/clang/lib/Sema/SemaHLSL.cpp
@@ -1843,6 +1843,23 @@ static bool CheckAnyScalarOrVector(Sema *S, CallExpr *TheCall,
return false;
}
+static bool CheckNotBoolType(Sema *S, CallExpr *TheCall, unsigned ArgIndex) {
+ QualType BoolType = S->getASTContext().BoolTy;
+ assert(TheCall->getNumArgs() >= ArgIndex);
+ QualType ArgType = TheCall->getArg(ArgIndex)->getType();
+ auto *VTy = ArgType->getAs<VectorType>();
+ // is the bool or vector<bool>
+ if (S->Context.hasSameUnqualifiedType(ArgType, BoolType) ||
+ (VTy &&
+ S->Context.hasSameUnqualifiedType(VTy->getElementType(), BoolType))) {
+ S->Diag(TheCall->getArg(0)->getBeginLoc(),
+ diag::err_typecheck_expect_scalar_or_vector_not_type)
+ << ArgType << BoolType;
+ return true;
+ }
+ return false;
+}
+
static bool CheckBoolSelect(Sema *S, CallExpr *TheCall) {
assert(TheCall->getNumArgs() == 3);
Expr *Arg1 = TheCall->getArg(1);
@@ -2151,6 +2168,20 @@ bool SemaHLSL::CheckBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) {
TheCall->setType(ArgTyA);
break;
}
+ case Builtin::BI__builtin_hlsl_wave_active_sum: {
+ if (SemaRef.checkArgCount(TheCall, 1))
+ return true;
+
+ // Ensure input expr type is a scalar/vector and the same as the return type
+ if (CheckAnyScalarOrVector(&SemaRef, TheCall, 0))
+ return true;
+ if (CheckNotBoolType(&SemaRef, TheCall, 0))
+ return true;
+ ExprResult Expr = TheCall->getArg(0);
+ QualType ArgTyExpr = Expr.get()->getType();
+ TheCall->setType(ArgTyExpr);
+ break;
+ }
// Note these are llvm builtins that we want to catch invalid intrinsic
// generation. Normal handling of these builitns will occur elsewhere.
case Builtin::BI__builtin_elementwise_bitreverse: {
diff --git a/clang/test/CodeGenHLSL/builtins/WaveActiveSum.hlsl b/clang/test/CodeGenHLSL/builtins/WaveActiveSum.hlsl
new file mode 100644
index 00000000000000..4df8194bfd1ed3
--- /dev/null
+++ b/clang/test/CodeGenHLSL/builtins/WaveActiveSum.hlsl
@@ -0,0 +1,45 @@
+// RUN: %clang_cc1 -std=hlsl2021 -finclude-default-header -triple \
+// RUN: dxil-pc-shadermodel6.3-compute %s -emit-llvm -disable-llvm-passes -o - | \
+// RUN: FileCheck %s --check-prefixes=CHECK,CHECK-DXIL
+// RUN: %clang_cc1 -std=hlsl2021 -finclude-default-header -triple \
+// RUN: spirv-pc-vulkan-compute %s -emit-llvm -disable-llvm-passes -o - | \
+// RUN: FileCheck %s --check-prefixes=CHECK,CHECK-SPIRV
+
+// Test basic lowering to runtime function call.
+
+// CHECK-LABEL: test_int
+int test_int(int expr) {
+ // CHECK-SPIRV: %[[RET:.*]] = call spir_func [[TY:.*]] @llvm.spv.wave.active.sum.i32([[TY]] %[[#]])
+ // CHECK-DXIL: %[[RET:.*]] = call [[TY:.*]] @llvm.dx.wave.active.sum.i32([[TY]] %[[#]])
+ // CHECK: ret [[TY]] %[[RET]]
+ return WaveActiveSum(expr);
+}
+
+// CHECK-DXIL: declare [[TY]] @llvm.dx.wave.active.sum.i32([[TY]]) #[[#attr:]]
+// CHECK-SPIRV: declare spir_func [[TY]] @llvm.spv.wave.active.sum.i32([[TY]]) #[[#attr:]]
+
+// CHECK-LABEL: test_uint64_t
+uint64_t test_uint64_t(uint64_t expr) {
+ // CHECK-SPIRV: %[[RET:.*]] = call spir_func [[TY:.*]] @llvm.spv.wave.active.sum.i64([[TY]] %[[#]])
+ // CHECK-DXIL: %[[RET:.*]] = call [[TY:.*]] @llvm.dx.wave.active.usum.i64([[TY]] %[[#]])
+ // CHECK: ret [[TY]] %[[RET]]
+ return WaveActiveSum(expr);
+}
+
+// CHECK-DXIL: declare [[TY]] @llvm.dx.wave.active.usum.i64([[TY]]) #[[#attr:]]
+// CHECK-SPIRV: declare spir_func [[TY]] @llvm.spv.wave.active.sum.i64([[TY]]) #[[#attr:]]
+
+// Test basic lowering to runtime function call with array and float value.
+
+// CHECK-LABEL: test_floatv4
+float4 test_floatv4(float4 expr) {
+ // CHECK-SPIRV: %[[RET1:.*]] = call spir_func [[TY1:.*]] @llvm.spv.wave.active.sum.v4f32([[TY1]] %[[#]]
+ // CHECK-DXIL: %[[RET1:.*]] = call [[TY1:.*]] @llvm.dx.wave.active.sum.v4f32([[TY1]] %[[#]])
+ // CHECK: ret [[TY1]] %[[RET1]]
+ return WaveActiveSum(expr);
+}
+
+// CHECK-DXIL: declare [[TY1]] @llvm.dx.wave.active.sum.v4f32([[TY1]]) #[[#attr]]
+// CHECK-SPIRV: declare spir_func [[TY1]] @llvm.spv.wave.active.sum.v4f32([[TY1]]) #[[#attr]]
+
+// CHECK: attributes #[[#attr]] = {{{.*}} convergent {{.*}}}
diff --git a/clang/test/SemaHLSL/BuiltIns/WaveActiveSum-errors.hlsl b/clang/test/SemaHLSL/BuiltIns/WaveActiveSum-errors.hlsl
new file mode 100644
index 00000000000000..406e8fc57ca958
--- /dev/null
+++ b/clang/test/SemaHLSL/BuiltIns/WaveActiveSum-errors.hlsl
@@ -0,0 +1,28 @@
+// RUN: %clang_cc1 -finclude-default-header -triple dxil-pc-shadermodel6.6-library %s -emit-llvm-only -disable-llvm-passes -verify
+
+int test_too_few_arg() {
+ return __builtin_hlsl_wave_active_sum();
+ // expected-error at -1 {{too few arguments to function call, expected 1, have 0}}
+}
+
+float2 test_too_many_arg(float2 p0) {
+ return __builtin_hlsl_wave_active_sum(p0, p0);
+ // expected-error at -1 {{too many arguments to function call, expected 1, have 2}}
+}
+
+bool test_expr_bool_type_check(bool p0) {
+ return __builtin_hlsl_wave_active_sum(p0);
+ // expected-error at -1 {{invalid operand of type 'bool'}}
+}
+
+bool2 test_expr_bool_vec_type_check(bool2 p0) {
+ return __builtin_hlsl_wave_active_sum(p0);
+ // expected-error at -1 {{invalid operand of type 'bool2' (aka 'vector<bool, 2>')}}
+}
+
+struct S { float f; };
+
+S test_expr_struct_type_check(S p0) {
+ return __builtin_hlsl_wave_active_sum(p0);
+ // expected-error at -1 {{invalid operand of type 'S' where a scalar or vector is required}}
+}
diff --git a/llvm/include/llvm/IR/IntrinsicsDirectX.td b/llvm/include/llvm/IR/IntrinsicsDirectX.td
index 5696345a617fe5..38629a9ed668bf 100644
--- a/llvm/include/llvm/IR/IntrinsicsDirectX.td
+++ b/llvm/include/llvm/IR/IntrinsicsDirectX.td
@@ -100,6 +100,8 @@ def int_dx_rsqrt : DefaultAttrsIntrinsic<[llvm_anyfloat_ty], [LLVMMatchType<0>]
def int_dx_wave_active_countbits : DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i1_ty], [IntrConvergent, IntrNoMem]>;
def int_dx_wave_any : DefaultAttrsIntrinsic<[llvm_i1_ty], [llvm_i1_ty], [IntrConvergent, IntrNoMem]>;
def int_dx_wave_getlaneindex : DefaultAttrsIntrinsic<[llvm_i32_ty], [], [IntrConvergent, IntrNoMem]>;
+def int_dx_wave_active_sum : DefaultAttrsIntrinsic<[llvm_any_ty], [LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;
+def int_dx_wave_active_usum : DefaultAttrsIntrinsic<[llvm_anyint_ty], [LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;
def int_dx_wave_is_first_lane : DefaultAttrsIntrinsic<[llvm_i1_ty], [], [IntrConvergent]>;
def int_dx_wave_readlane : DefaultAttrsIntrinsic<[llvm_any_ty], [LLVMMatchType<0>, llvm_i32_ty], [IntrConvergent, IntrNoMem]>;
def int_dx_sign : DefaultAttrsIntrinsic<[LLVMScalarOrSameVectorWidth<0, llvm_i32_ty>], [llvm_any_ty], [IntrNoMem]>;
diff --git a/llvm/include/llvm/IR/IntrinsicsSPIRV.td b/llvm/include/llvm/IR/IntrinsicsSPIRV.td
index 17b70062e58fa9..58c955f6371b45 100644
--- a/llvm/include/llvm/IR/IntrinsicsSPIRV.td
+++ b/llvm/include/llvm/IR/IntrinsicsSPIRV.td
@@ -87,6 +87,7 @@ let TargetPrefix = "spv" in {
def int_spv_dot4add_u8packed : DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty], [IntrNoMem]>;
def int_spv_wave_active_countbits : DefaultAttrsIntrinsic<[llvm_i32_ty], [llvm_i1_ty], [IntrConvergent, IntrNoMem]>;
def int_spv_wave_any : DefaultAttrsIntrinsic<[llvm_i1_ty], [llvm_i1_ty], [IntrConvergent, IntrNoMem]>;
+ def int_spv_wave_active_sum : DefaultAttrsIntrinsic<[llvm_any_ty], [LLVMMatchType<0>], [IntrConvergent, IntrNoMem]>;
def int_spv_wave_is_first_lane : DefaultAttrsIntrinsic<[llvm_i1_ty], [], [IntrConvergent]>;
def int_spv_wave_readlane : DefaultAttrsIntrinsic<[llvm_any_ty], [LLVMMatchType<0>, llvm_i32_ty], [IntrConvergent, IntrNoMem]>;
def int_spv_sign : DefaultAttrsIntrinsic<[LLVMScalarOrSameVectorWidth<0, llvm_i32_ty>], [llvm_any_ty], [IntrNoMem]>;
diff --git a/llvm/lib/Target/DirectX/DXIL.td b/llvm/lib/Target/DirectX/DXIL.td
index cff6cdce813ded..95e5ffab10aa06 100644
--- a/llvm/lib/Target/DirectX/DXIL.td
+++ b/llvm/lib/Target/DirectX/DXIL.td
@@ -301,6 +301,14 @@ defvar BarrierMode_GroupMemoryBarrierWithGroupSync = 9;
defvar BarrierMode_AllMemoryBarrier = 10;
defvar BarrierMode_AllMemoryBarrierWithGroupSync = 11;
+defvar WaveOpKind_Sum = 0;
+defvar WaveOpKind_Product = 1;
+defvar WaveOpKind_Min = 2;
+defvar WaveOpKind_Max = 3;
+
+defvar SignedOpKind_Signed = 0;
+defvar SignedOpKind_Unsigned = 1;
+
// Intrinsic arg selection
class IntrinArgSelectType;
def IntrinArgSelect_Index : IntrinArgSelectType;
@@ -932,6 +940,24 @@ def WaveActiveAnyTrue : DXILOp<113, waveAnyTrue> {
let stages = [Stages<DXIL1_0, [all_stages]>];
}
+def WaveActiveOp : DXILOp<119, waveActiveOp> {
+ let Doc = "returns the result of the operation across waves";
+ let intrinsics = [
+ IntrinSelect<
+ int_dx_wave_active_sum,
+ [ IntrinArgIndex<0>, IntrinArgI8<WaveOpKind_Sum>, IntrinArgI8<SignedOpKind_Signed> ]>,
+ IntrinSelect<
+ int_dx_wave_active_usum,
+ [ IntrinArgIndex<0>, IntrinArgI8<WaveOpKind_Sum>, IntrinArgI8<SignedOpKind_Unsigned> ]>,
+ ];
+
+ let arguments = [OverloadTy, Int8Ty, Int8Ty];
+ let result = OverloadTy;
+ let overloads = [Overloads<DXIL1_0, [HalfTy, FloatTy, DoubleTy, Int16Ty, Int32Ty, Int64Ty]>];
+ let stages = [Stages<DXIL1_0, [all_stages]>];
+ let attributes = [Attributes<DXIL1_0, [ReadNone]>];
+}
+
def WaveIsFirstLane : DXILOp<110, waveIsFirstLane> {
let Doc = "returns 1 for the first lane in the wave";
let intrinsics = [ IntrinSelect<int_dx_wave_is_first_lane> ];
diff --git a/llvm/lib/Target/DirectX/DirectXTargetTransformInfo.cpp b/llvm/lib/Target/DirectX/DirectXTargetTransformInfo.cpp
index 2ca4e23594d56d..40d15c8b0de4a3 100644
--- a/llvm/lib/Target/DirectX/DirectXTargetTransformInfo.cpp
+++ b/llvm/lib/Target/DirectX/DirectXTargetTransformInfo.cpp
@@ -40,6 +40,8 @@ bool DirectXTTIImpl::isTargetIntrinsicTriviallyScalarizable(
switch (ID) {
case Intrinsic::dx_frac:
case Intrinsic::dx_rsqrt:
+ case Intrinsic::dx_wave_active_sum:
+ case Intrinsic::dx_wave_active_usum:
case Intrinsic::dx_wave_readlane:
case Intrinsic::dx_asdouble:
case Intrinsic::dx_splitdouble:
diff --git a/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp b/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
index 3547ac66430a87..3ebf9d4bf36fc6 100644
--- a/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
+++ b/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
@@ -192,6 +192,9 @@ class SPIRVInstructionSelector : public InstructionSelector {
bool selectDot4AddPackedExpansion(Register ResVReg, const SPIRVType *ResType,
MachineInstr &I) const;
+ bool selectWaveActiveSum(Register ResVReg, const SPIRVType *ResType,
+ MachineInstr &I) const;
+
void renderImm32(MachineInstrBuilder &MIB, const MachineInstr &I,
int OpIdx) const;
void renderFImm64(MachineInstrBuilder &MIB, const MachineInstr &I,
@@ -2022,6 +202...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/118580
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