[clang] [llvm] Revert #116331 & #121852 (PR #122105)
via llvm-commits
llvm-commits at lists.llvm.org
Wed Jan 8 05:04:30 PST 2025
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-clang
@llvm/pr-subscribers-backend-directx
Author: Chris B (llvm-beanz)
<details>
<summary>Changes</summary>
#<!-- -->116331 introduced a regression in DXIL testing, and did not address all PR feedback before merging. @<!-- -->joaosaffran is looking at the regression tracked in #<!-- -->122052 and will re-land these changes with that fix.
---
Patch is 29.52 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/122105.diff
14 Files Affected:
- (modified) clang/include/clang/Basic/Attr.td (-10)
- (modified) clang/lib/CodeGen/CGStmt.cpp (-6)
- (modified) clang/lib/CodeGen/CodeGenFunction.cpp (+1-24)
- (modified) clang/lib/CodeGen/CodeGenFunction.h (-4)
- (modified) clang/lib/Sema/SemaStmtAttr.cpp (-8)
- (removed) clang/test/AST/HLSL/HLSLControlFlowHint.hlsl (-43)
- (removed) clang/test/CodeGenHLSL/HLSLControlFlowHint.hlsl (-48)
- (modified) llvm/include/llvm/IR/IntrinsicsSPIRV.td (+1-1)
- (modified) llvm/lib/Target/DirectX/DXILTranslateMetadata.cpp (-37)
- (modified) llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp (+6-23)
- (modified) llvm/lib/Target/SPIRV/SPIRVStructurizer.cpp (+11-33)
- (removed) llvm/test/CodeGen/DirectX/HLSLControlFlowHint.ll (-98)
- (removed) llvm/test/CodeGen/SPIRV/structurizer/HLSLControlFlowHint-pass-check.ll (-90)
- (removed) llvm/test/CodeGen/SPIRV/structurizer/HLSLControlFlowHint.ll (-91)
``````````diff
diff --git a/clang/include/clang/Basic/Attr.td b/clang/include/clang/Basic/Attr.td
index 6d7f65ab2c6135b..12faf06597008e8 100644
--- a/clang/include/clang/Basic/Attr.td
+++ b/clang/include/clang/Basic/Attr.td
@@ -4335,16 +4335,6 @@ def HLSLLoopHint: StmtAttr {
let Documentation = [HLSLLoopHintDocs, HLSLUnrollHintDocs];
}
-def HLSLControlFlowHint: StmtAttr {
- /// [branch]
- /// [flatten]
- let Spellings = [Microsoft<"branch">, Microsoft<"flatten">];
- let Subjects = SubjectList<[IfStmt],
- ErrorDiag, "'if' statements">;
- let LangOpts = [HLSL];
- let Documentation = [InternalOnly];
-}
-
def CapturedRecord : InheritableAttr {
// This attribute has no spellings as it is only ever created implicitly.
let Spellings = [];
diff --git a/clang/lib/CodeGen/CGStmt.cpp b/clang/lib/CodeGen/CGStmt.cpp
index c8ff48fc733125d..a87c50b8a1cbbfa 100644
--- a/clang/lib/CodeGen/CGStmt.cpp
+++ b/clang/lib/CodeGen/CGStmt.cpp
@@ -757,8 +757,6 @@ void CodeGenFunction::EmitAttributedStmt(const AttributedStmt &S) {
bool noinline = false;
bool alwaysinline = false;
bool noconvergent = false;
- HLSLControlFlowHintAttr::Spelling flattenOrBranch =
- HLSLControlFlowHintAttr::SpellingNotCalculated;
const CallExpr *musttail = nullptr;
for (const auto *A : S.getAttrs()) {
@@ -790,9 +788,6 @@ void CodeGenFunction::EmitAttributedStmt(const AttributedStmt &S) {
Builder.CreateAssumption(AssumptionVal);
}
} break;
- case attr::HLSLControlFlowHint: {
- flattenOrBranch = cast<HLSLControlFlowHintAttr>(A)->getSemanticSpelling();
- } break;
}
}
SaveAndRestore save_nomerge(InNoMergeAttributedStmt, nomerge);
@@ -800,7 +795,6 @@ void CodeGenFunction::EmitAttributedStmt(const AttributedStmt &S) {
SaveAndRestore save_alwaysinline(InAlwaysInlineAttributedStmt, alwaysinline);
SaveAndRestore save_noconvergent(InNoConvergentAttributedStmt, noconvergent);
SaveAndRestore save_musttail(MustTailCall, musttail);
- SaveAndRestore save_flattenOrBranch(HLSLControlFlowAttr, flattenOrBranch);
EmitStmt(S.getSubStmt(), S.getAttrs());
}
diff --git a/clang/lib/CodeGen/CodeGenFunction.cpp b/clang/lib/CodeGen/CodeGenFunction.cpp
index 067ff55b87ae638..af58fa64f865855 100644
--- a/clang/lib/CodeGen/CodeGenFunction.cpp
+++ b/clang/lib/CodeGen/CodeGenFunction.cpp
@@ -40,7 +40,6 @@
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/FPEnv.h"
-#include "llvm/IR/Instruction.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/MDBuilder.h"
@@ -2084,29 +2083,7 @@ void CodeGenFunction::EmitBranchOnBoolExpr(
Weights = createProfileWeights(TrueCount, CurrentCount - TrueCount);
}
- llvm::Instruction *BrInst = Builder.CreateCondBr(CondV, TrueBlock, FalseBlock,
- Weights, Unpredictable);
- switch (HLSLControlFlowAttr) {
- case HLSLControlFlowHintAttr::Microsoft_branch:
- case HLSLControlFlowHintAttr::Microsoft_flatten: {
- llvm::MDBuilder MDHelper(CGM.getLLVMContext());
-
- llvm::ConstantInt *BranchHintConstant =
- HLSLControlFlowAttr ==
- HLSLControlFlowHintAttr::Spelling::Microsoft_branch
- ? llvm::ConstantInt::get(CGM.Int32Ty, 1)
- : llvm::ConstantInt::get(CGM.Int32Ty, 2);
-
- SmallVector<llvm::Metadata *, 2> Vals(
- {MDHelper.createString("hlsl.controlflow.hint"),
- MDHelper.createConstant(BranchHintConstant)});
- BrInst->setMetadata("hlsl.controlflow.hint",
- llvm::MDNode::get(CGM.getLLVMContext(), Vals));
- break;
- }
- case HLSLControlFlowHintAttr::SpellingNotCalculated:
- break;
- }
+ Builder.CreateCondBr(CondV, TrueBlock, FalseBlock, Weights, Unpredictable);
}
/// ErrorUnsupported - Print out an error that codegen doesn't support the
diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
index bc612a0bfb32ba4..f2240f8308ce384 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -615,10 +615,6 @@ class CodeGenFunction : public CodeGenTypeCache {
/// True if the current statement has noconvergent attribute.
bool InNoConvergentAttributedStmt = false;
- /// HLSL Branch attribute.
- HLSLControlFlowHintAttr::Spelling HLSLControlFlowAttr =
- HLSLControlFlowHintAttr::SpellingNotCalculated;
-
// The CallExpr within the current statement that the musttail attribute
// applies to. nullptr if there is no 'musttail' on the current statement.
const CallExpr *MustTailCall = nullptr;
diff --git a/clang/lib/Sema/SemaStmtAttr.cpp b/clang/lib/Sema/SemaStmtAttr.cpp
index 422d8abc1028aa2..106e2430de901ec 100644
--- a/clang/lib/Sema/SemaStmtAttr.cpp
+++ b/clang/lib/Sema/SemaStmtAttr.cpp
@@ -619,12 +619,6 @@ static Attr *handleHLSLLoopHintAttr(Sema &S, Stmt *St, const ParsedAttr &A,
return ::new (S.Context) HLSLLoopHintAttr(S.Context, A, UnrollFactor);
}
-static Attr *handleHLSLControlFlowHint(Sema &S, Stmt *St, const ParsedAttr &A,
- SourceRange Range) {
-
- return ::new (S.Context) HLSLControlFlowHintAttr(S.Context, A);
-}
-
static Attr *ProcessStmtAttribute(Sema &S, Stmt *St, const ParsedAttr &A,
SourceRange Range) {
if (A.isInvalid() || A.getKind() == ParsedAttr::IgnoredAttribute)
@@ -661,8 +655,6 @@ static Attr *ProcessStmtAttribute(Sema &S, Stmt *St, const ParsedAttr &A,
return handleLoopHintAttr(S, St, A, Range);
case ParsedAttr::AT_HLSLLoopHint:
return handleHLSLLoopHintAttr(S, St, A, Range);
- case ParsedAttr::AT_HLSLControlFlowHint:
- return handleHLSLControlFlowHint(S, St, A, Range);
case ParsedAttr::AT_OpenCLUnrollHint:
return handleOpenCLUnrollHint(S, St, A, Range);
case ParsedAttr::AT_Suppress:
diff --git a/clang/test/AST/HLSL/HLSLControlFlowHint.hlsl b/clang/test/AST/HLSL/HLSLControlFlowHint.hlsl
deleted file mode 100644
index a36779c05fbc936..000000000000000
--- a/clang/test/AST/HLSL/HLSLControlFlowHint.hlsl
+++ /dev/null
@@ -1,43 +0,0 @@
-// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-compute -ast-dump %s | FileCheck %s
-
-// CHECK: FunctionDecl 0x{{[0-9A-Fa-f]+}} <{{.*}}> {{.*}} used branch 'int (int)'
-// CHECK: AttributedStmt 0x{{[0-9A-Fa-f]+}} <<invalid sloc>
-// CHECK-NEXT: -HLSLControlFlowHintAttr 0x{{[0-9A-Fa-f]+}} <{{.*}}> branch
-export int branch(int X){
- int resp;
- [branch] if (X > 0) {
- resp = -X;
- } else {
- resp = X * 2;
- }
-
- return resp;
-}
-
-// CHECK: FunctionDecl 0x{{[0-9A-Fa-f]+}} <{{.*}}> {{.*}} used flatten 'int (int)'
-// CHECK: AttributedStmt 0x{{[0-9A-Fa-f]+}} <<invalid sloc>
-// CHECK-NEXT: -HLSLControlFlowHintAttr 0x{{[0-9A-Fa-f]+}} <{{.*}}> flatten
-export int flatten(int X){
- int resp;
- [flatten] if (X > 0) {
- resp = -X;
- } else {
- resp = X * 2;
- }
-
- return resp;
-}
-
-// CHECK: FunctionDecl 0x{{[0-9A-Fa-f]+}} <{{.*}}> {{.*}} used no_attr 'int (int)'
-// CHECK-NOT: AttributedStmt 0x{{[0-9A-Fa-f]+}} <<invalid sloc>
-// CHECK-NOT: -HLSLControlFlowHintAttr
-export int no_attr(int X){
- int resp;
- if (X > 0) {
- resp = -X;
- } else {
- resp = X * 2;
- }
-
- return resp;
-}
diff --git a/clang/test/CodeGenHLSL/HLSLControlFlowHint.hlsl b/clang/test/CodeGenHLSL/HLSLControlFlowHint.hlsl
deleted file mode 100644
index aa13b2758185024..000000000000000
--- a/clang/test/CodeGenHLSL/HLSLControlFlowHint.hlsl
+++ /dev/null
@@ -1,48 +0,0 @@
-// RUN: %clang_cc1 -finclude-default-header -x hlsl -triple dxil-pc-shadermodel6.3-library %s -fnative-half-type -emit-llvm -o - | FileCheck %s
-// RUN: %clang_cc1 -finclude-default-header -x hlsl -triple spirv-vulkan-library %s -fnative-half-type -emit-llvm -o - | FileCheck %s
-
-// CHECK: define {{.*}} i32 {{.*}}test_branch{{.*}}(i32 {{.*}} [[VALD:%.*]])
-// CHECK: [[PARAM:%.*]] = load i32, ptr [[VALD]].addr, align 4
-// CHECK: [[CMP:%.*]] = icmp sgt i32 [[PARAM]], 0
-// CHECK: br i1 [[CMP]], label %if.then, label %if.else, !hlsl.controlflow.hint [[HINT_BRANCH:![0-9]+]]
-export int test_branch(int X){
- int resp;
- [branch] if (X > 0) {
- resp = -X;
- } else {
- resp = X * 2;
- }
-
- return resp;
-}
-
-// CHECK: define {{.*}} i32 {{.*}}test_flatten{{.*}}(i32 {{.*}} [[VALD:%.*]])
-// CHECK: [[PARAM:%.*]] = load i32, ptr [[VALD]].addr, align 4
-// CHECK: [[CMP:%.*]] = icmp sgt i32 [[PARAM]], 0
-// CHECK: br i1 [[CMP]], label %if.then, label %if.else, !hlsl.controlflow.hint [[HINT_FLATTEN:![0-9]+]]
-export int test_flatten(int X){
- int resp;
- [flatten] if (X > 0) {
- resp = -X;
- } else {
- resp = X * 2;
- }
-
- return resp;
-}
-
-// CHECK: define {{.*}} i32 {{.*}}test_no_attr{{.*}}(i32 {{.*}} [[VALD:%.*]])
-// CHECK-NOT: !hlsl.controlflow.hint
-export int test_no_attr(int X){
- int resp;
- if (X > 0) {
- resp = -X;
- } else {
- resp = X * 2;
- }
-
- return resp;
-}
-
-//CHECK: [[HINT_BRANCH]] = !{!"hlsl.controlflow.hint", i32 1}
-//CHECK: [[HINT_FLATTEN]] = !{!"hlsl.controlflow.hint", i32 2}
diff --git a/llvm/include/llvm/IR/IntrinsicsSPIRV.td b/llvm/include/llvm/IR/IntrinsicsSPIRV.td
index e6e21dcd6d69950..c72179e3e18a3de 100644
--- a/llvm/include/llvm/IR/IntrinsicsSPIRV.td
+++ b/llvm/include/llvm/IR/IntrinsicsSPIRV.td
@@ -33,7 +33,7 @@ let TargetPrefix = "spv" in {
def int_spv_ptrcast : Intrinsic<[llvm_any_ty], [llvm_any_ty, llvm_metadata_ty, llvm_i32_ty], [ImmArg<ArgIndex<2>>]>;
def int_spv_switch : Intrinsic<[], [llvm_any_ty, llvm_vararg_ty]>;
def int_spv_loop_merge : Intrinsic<[], [llvm_vararg_ty]>;
- def int_spv_selection_merge : Intrinsic<[], [llvm_any_ty, llvm_i32_ty], [ImmArg<ArgIndex<1>>]>;
+ def int_spv_selection_merge : Intrinsic<[], [llvm_vararg_ty]>;
def int_spv_cmpxchg : Intrinsic<[llvm_i32_ty], [llvm_any_ty, llvm_vararg_ty]>;
def int_spv_unreachable : Intrinsic<[], []>;
def int_spv_alloca : Intrinsic<[llvm_any_ty], [llvm_i8_ty], [ImmArg<ArgIndex<0>>]>;
diff --git a/llvm/lib/Target/DirectX/DXILTranslateMetadata.cpp b/llvm/lib/Target/DirectX/DXILTranslateMetadata.cpp
index ad079f45c88297b..5afe6b2d2883db4 100644
--- a/llvm/lib/Target/DirectX/DXILTranslateMetadata.cpp
+++ b/llvm/lib/Target/DirectX/DXILTranslateMetadata.cpp
@@ -15,14 +15,12 @@
#include "llvm/ADT/Twine.h"
#include "llvm/Analysis/DXILMetadataAnalysis.h"
#include "llvm/Analysis/DXILResource.h"
-#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/IR/DiagnosticPrinter.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/LLVMContext.h"
-#include "llvm/IR/MDBuilder.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/InitializePasses.h"
@@ -302,39 +300,6 @@ static MDTuple *emitTopLevelLibraryNode(Module &M, MDNode *RMD,
return constructEntryMetadata(nullptr, nullptr, RMD, Properties, Ctx);
}
-// TODO: We might need to refactor this to be more generic,
-// in case we need more metadata to be replaced.
-static void translateBranchMetadata(Module &M) {
- for (Function &F : M) {
- for (BasicBlock &BB : F) {
- Instruction *BBTerminatorInst = BB.getTerminator();
-
- MDNode *HlslControlFlowMD =
- BBTerminatorInst->getMetadata("hlsl.controlflow.hint");
-
- if (!HlslControlFlowMD)
- continue;
-
- assert(HlslControlFlowMD->getNumOperands() == 2 &&
- "invalid operands for hlsl.controlflow.hint");
-
- MDBuilder MDHelper(M.getContext());
- ConstantInt *Op1 =
- mdconst::extract<ConstantInt>(HlslControlFlowMD->getOperand(1));
-
- SmallVector<llvm::Metadata *, 2> Vals(
- ArrayRef<Metadata *>{MDHelper.createString("dx.controlflow.hints"),
- MDHelper.createConstant(Op1)});
-
- MDNode *MDNode = llvm::MDNode::get(M.getContext(), Vals);
-
- BBTerminatorInst->setMetadata("dx.controlflow.hints", MDNode);
- BBTerminatorInst->setMetadata("hlsl.controlflow.hint", nullptr);
- }
- F.clearMetadata();
- }
-}
-
static void translateMetadata(Module &M, DXILBindingMap &DBM,
DXILResourceTypeMap &DRTM,
const Resources &MDResources,
@@ -407,7 +372,6 @@ PreservedAnalyses DXILTranslateMetadata::run(Module &M,
const dxil::ModuleMetadataInfo MMDI = MAM.getResult<DXILMetadataAnalysis>(M);
translateMetadata(M, DBM, DRTM, MDResources, ShaderFlags, MMDI);
- translateBranchMetadata(M);
return PreservedAnalyses::all();
}
@@ -445,7 +409,6 @@ class DXILTranslateMetadataLegacy : public ModulePass {
getAnalysis<DXILMetadataAnalysisWrapperPass>().getModuleMetadata();
translateMetadata(M, DBM, DRTM, MDResources, ShaderFlags, MMDI);
- translateBranchMetadata(M);
return true;
}
};
diff --git a/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp b/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
index 237f71a1b70e50a..28c9b81db51f518 100644
--- a/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
+++ b/llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp
@@ -33,7 +33,6 @@
#include "llvm/CodeGen/TargetOpcodes.h"
#include "llvm/IR/IntrinsicsSPIRV.h"
#include "llvm/Support/Debug.h"
-#include "llvm/Support/ErrorHandling.h"
#define DEBUG_TYPE "spirv-isel"
@@ -46,17 +45,6 @@ using ExtInstList =
namespace {
-llvm::SPIRV::SelectionControl::SelectionControl
-getSelectionOperandForImm(int Imm) {
- if (Imm == 2)
- return SPIRV::SelectionControl::Flatten;
- if (Imm == 1)
- return SPIRV::SelectionControl::DontFlatten;
- if (Imm == 0)
- return SPIRV::SelectionControl::None;
- llvm_unreachable("Invalid immediate");
-}
-
#define GET_GLOBALISEL_PREDICATE_BITSET
#include "SPIRVGenGlobalISel.inc"
#undef GET_GLOBALISEL_PREDICATE_BITSET
@@ -2830,8 +2818,12 @@ bool SPIRVInstructionSelector::selectIntrinsic(Register ResVReg,
}
return MIB.constrainAllUses(TII, TRI, RBI);
}
- case Intrinsic::spv_loop_merge: {
- auto MIB = BuildMI(BB, I, I.getDebugLoc(), TII.get(SPIRV::OpLoopMerge));
+ case Intrinsic::spv_loop_merge:
+ case Intrinsic::spv_selection_merge: {
+ const auto Opcode = IID == Intrinsic::spv_selection_merge
+ ? SPIRV::OpSelectionMerge
+ : SPIRV::OpLoopMerge;
+ auto MIB = BuildMI(BB, I, I.getDebugLoc(), TII.get(Opcode));
for (unsigned i = 1; i < I.getNumExplicitOperands(); ++i) {
assert(I.getOperand(i).isMBB());
MIB.addMBB(I.getOperand(i).getMBB());
@@ -2839,15 +2831,6 @@ bool SPIRVInstructionSelector::selectIntrinsic(Register ResVReg,
MIB.addImm(SPIRV::SelectionControl::None);
return MIB.constrainAllUses(TII, TRI, RBI);
}
- case Intrinsic::spv_selection_merge: {
- auto MIB =
- BuildMI(BB, I, I.getDebugLoc(), TII.get(SPIRV::OpSelectionMerge));
- assert(I.getOperand(1).isMBB() &&
- "operand 1 to spv_selection_merge must be a basic block");
- MIB.addMBB(I.getOperand(1).getMBB());
- MIB.addImm(getSelectionOperandForImm(I.getOperand(2).getImm()));
- return MIB.constrainAllUses(TII, TRI, RBI);
- }
case Intrinsic::spv_cmpxchg:
return selectAtomicCmpXchg(ResVReg, ResType, I);
case Intrinsic::spv_unreachable:
diff --git a/llvm/lib/Target/SPIRV/SPIRVStructurizer.cpp b/llvm/lib/Target/SPIRV/SPIRVStructurizer.cpp
index 2e4343c7922f1cb..336cde4e7822462 100644
--- a/llvm/lib/Target/SPIRV/SPIRVStructurizer.cpp
+++ b/llvm/lib/Target/SPIRV/SPIRVStructurizer.cpp
@@ -18,16 +18,14 @@
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/CodeGen/IntrinsicLowering.h"
+#include "llvm/IR/Analysis.h"
#include "llvm/IR/CFG.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/IntrinsicsSPIRV.h"
-#include "llvm/IR/LegacyPassManager.h"
#include "llvm/InitializePasses.h"
-#include "llvm/PassRegistry.h"
-#include "llvm/Transforms/Utils.h"
#include "llvm/Transforms/Utils/Cloning.h"
#include "llvm/Transforms/Utils/LoopSimplify.h"
#include "llvm/Transforms/Utils/LowerMemIntrinsics.h"
@@ -648,7 +646,8 @@ class SPIRVStructurizer : public FunctionPass {
Builder.SetInsertPoint(Header->getTerminator());
auto MergeAddress = BlockAddress::get(BB.getParent(), &BB);
- createOpSelectMerge(&Builder, MergeAddress);
+ SmallVector<Value *, 1> Args = {MergeAddress};
+ Builder.CreateIntrinsic(Intrinsic::spv_selection_merge, {}, {Args});
Modified = true;
}
@@ -770,9 +769,10 @@ class SPIRVStructurizer : public FunctionPass {
BasicBlock *Merge = Candidates[0];
auto MergeAddress = BlockAddress::get(Merge->getParent(), Merge);
+ SmallVector<Value *, 1> Args = {MergeAddress};
IRBuilder<> Builder(&BB);
Builder.SetInsertPoint(BB.getTerminator());
- createOpSelectMerge(&Builder, MergeAddress);
+ Builder.CreateIntrinsic(Intrinsic::spv_selection_merge, {}, {Args});
}
return Modified;
@@ -1105,7 +1105,8 @@ class SPIRVStructurizer : public FunctionPass {
Builder.SetInsertPoint(Header->getTerminator());
auto MergeAddress = BlockAddress::get(Merge->getParent(), Merge);
- createOpSelectMerge(&Builder, MergeAddress);
+ SmallVector<Value *, 1> Args = {MergeAddress};
+ Builder.CreateIntrinsic(Intrinsic::spv_selection_merge, {}, {Args});
continue;
}
@@ -1119,7 +1120,8 @@ class SPIRVStructurizer : public FunctionPass {
Builder.SetInsertPoint(Header->getTerminator());
auto MergeAddress = BlockAddress::get(NewMerge->getParent(), NewMerge);
- createOpSelectMerge(&Builder, MergeAddress);
+ SmallVector<Value *, 1> Args = {MergeAddress};
+ Builder.CreateIntrinsic(Intrinsic::spv_selection_merge, {}, {Args});
}
return Modified;
@@ -1206,27 +1208,6 @@ class SPIRVStructurizer : public FunctionPass {
AU.addPreserved<SPIRVConvergenceRegionAnalysisWrapperPass>();
FunctionPass::getAnalysisUsage(AU);
}
-
- void createOpSelectMerge(IRBuilder<> *Builder, BlockAddress *MergeAddress) {
- Instruction *BBTerminatorInst = Builder->GetInsertBlock()->getTerminator();
-
- MDNode *MDNode = BBTerminatorInst->getMetadata("hlsl.controlflow.hint");
-
- ConstantInt *BranchHint = llvm::ConstantInt::get(Builder->getInt32Ty(), 0);
-
- if (MDNode) {
- assert(MDNode->getNumOperands() == 2 &&
- "invalid metadata hlsl.controlflow.hint");
- BranchHint = mdconst::extract<ConstantInt>(MDNode->getOperand(1));
-
- assert(BranchHint && "invalid metadata value for hlsl.controlflow.hint");
- }
-
- llvm::SmallVector<llvm::Value *, 2> Args = {MergeAddress, BranchHint};
-
- Builder->CreateIntrinsic(Intrinsic::spv_selection_merge,
- {MergeAddress->getType()}, {Args});
- }
};
} // namespace llvm
@@ -1248,11 +1229,8 @@ FunctionPass *llvm::createSPIRVStructurizerPass() {
PreservedAnalyses SPIRVStructurizerWrapper::run(Function &F,
FunctionAnalysisManager &AF) {
-
- auto FPM = legacy::FunctionPassManager(F.getParent());
- FPM.add(createSPIRVStructurizerPass());
-
- if (!FPM.run(F))
+ FunctionPass *StructurizerPass = createSPIRVStructurizerPass();
+ if (!StructurizerPass->runOnFunction(F))
return PreservedAnalyses::all();
PreservedAnalyses PA;
PA.preserveSet<CFGAnalyses>();
diff --git a/llvm/test/CodeGen/DirectX/HLSLControlFlowHint.ll b/llvm/test/CodeGen/DirectX/HLSLControlFlowHint.ll
deleted file mode 100644
index fe66e481359bb73..000000000000000
--- a/llvm/test/CodeGen/DirectX/HLSLControlFlowHint.ll
+++ /dev/null
@@ -1,98 +0,0 @@
-; RUN: opt -S -dxil-op-lower -dxil-translate-metadata -mtriple=dxil-pc-shadermodel6.3-library %s | FileCheck %s
-
-; This test make sure LLVM metadata is being translated into DXIL.
-
-
-; CHECK: define i32 @test_branch(i32 %X)
-; CHECK-NO: hlsl.controlflow.hint
-; CHECK: br i1 %cmp, label %if.then, label %if.else, !dx.controlflow.hints [[HINT_BRANCH:![0-9]+]]
-define i32 @test_branch(i32 %X) {
-entry:
- %X.addr = alloca i32, align 4
- %resp = alloca i32, align 4
- store i32 %X, ptr %X.addr, align 4
- %0 = load i32, ptr %X.addr, align 4
- %cmp = icmp sgt i32 %0, 0
- br i1 %...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/122105
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