[llvm] r335851 - Revert "Add support for generating a call graph profile from Branch Frequency Info."
Benjamin Kramer via llvm-commits
llvm-commits at lists.llvm.org
Thu Jun 28 06:15:03 PDT 2018
Author: d0k
Date: Thu Jun 28 06:15:03 2018
New Revision: 335851
URL: http://llvm.org/viewvc/llvm-project?rev=335851&view=rev
Log:
Revert "Add support for generating a call graph profile from Branch Frequency Info."
This reverts commits r335794 and r335797. Breaks ThinLTO+FDO selfhost.
Removed:
llvm/trunk/include/llvm/Transforms/Instrumentation/CGProfile.h
llvm/trunk/lib/Transforms/Instrumentation/CGProfile.cpp
llvm/trunk/test/Instrumentation/cgprofile.ll
llvm/trunk/test/MC/ELF/cgprofile.ll
llvm/trunk/test/Verifier/module-flags-cgprofile.ll
Modified:
llvm/trunk/include/llvm/CodeGen/TargetLoweringObjectFileImpl.h
llvm/trunk/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
llvm/trunk/lib/IR/Verifier.cpp
llvm/trunk/lib/Passes/PassBuilder.cpp
llvm/trunk/lib/Passes/PassRegistry.def
llvm/trunk/lib/Transforms/Instrumentation/CMakeLists.txt
llvm/trunk/test/Other/new-pm-defaults.ll
llvm/trunk/test/Other/new-pm-thinlto-defaults.ll
Modified: llvm/trunk/include/llvm/CodeGen/TargetLoweringObjectFileImpl.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/TargetLoweringObjectFileImpl.h?rev=335851&r1=335850&r2=335851&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/TargetLoweringObjectFileImpl.h (original)
+++ llvm/trunk/include/llvm/CodeGen/TargetLoweringObjectFileImpl.h Thu Jun 28 06:15:03 2018
@@ -36,14 +36,11 @@ class TargetLoweringObjectFileELF : publ
protected:
MCSymbolRefExpr::VariantKind PLTRelativeVariantKind =
MCSymbolRefExpr::VK_None;
- const TargetMachine *TM;
public:
TargetLoweringObjectFileELF() = default;
~TargetLoweringObjectFileELF() override = default;
- void Initialize(MCContext &Ctx, const TargetMachine &TM) override;
-
/// Emit Obj-C garbage collection and linker options.
void emitModuleMetadata(MCStreamer &Streamer, Module &M) const override;
Removed: llvm/trunk/include/llvm/Transforms/Instrumentation/CGProfile.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Transforms/Instrumentation/CGProfile.h?rev=335850&view=auto
==============================================================================
--- llvm/trunk/include/llvm/Transforms/Instrumentation/CGProfile.h (original)
+++ llvm/trunk/include/llvm/Transforms/Instrumentation/CGProfile.h (removed)
@@ -1,31 +0,0 @@
-//===- Transforms/Instrumentation/CGProfile.h -------------------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-/// \file
-/// This file provides the interface for LLVM's Call Graph Profile pass.
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_TRANSFORMS_CGPROFILE_H
-#define LLVM_TRANSFORMS_CGPROFILE_H
-
-#include "llvm/ADT/MapVector.h"
-#include "llvm/IR/PassManager.h"
-
-namespace llvm {
-class CGProfilePass : public PassInfoMixin<CGProfilePass> {
-public:
- PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
-
-private:
- void addModuleFlags(
- Module &M,
- MapVector<std::pair<Function *, Function *>, uint64_t> &Counts) const;
-};
-} // end namespace llvm
-
-#endif // LLVM_TRANSFORMS_CGPROFILE_H
Modified: llvm/trunk/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/TargetLoweringObjectFileImpl.cpp?rev=335851&r1=335850&r2=335851&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/TargetLoweringObjectFileImpl.cpp (original)
+++ llvm/trunk/lib/CodeGen/TargetLoweringObjectFileImpl.cpp Thu Jun 28 06:15:03 2018
@@ -91,12 +91,6 @@ static void GetObjCImageInfo(Module &M,
// ELF
//===----------------------------------------------------------------------===//
-void TargetLoweringObjectFileELF::Initialize(MCContext &Ctx,
- const TargetMachine &TgtM) {
- TargetLoweringObjectFile::Initialize(Ctx, TgtM);
- TM = &TgtM;
-}
-
void TargetLoweringObjectFileELF::emitModuleMetadata(MCStreamer &Streamer,
Module &M) const {
auto &C = getContext();
@@ -122,49 +116,15 @@ void TargetLoweringObjectFileELF::emitMo
StringRef Section;
GetObjCImageInfo(M, Version, Flags, Section);
- if (!Section.empty()) {
- auto *S = C.getELFSection(Section, ELF::SHT_PROGBITS, ELF::SHF_ALLOC);
- Streamer.SwitchSection(S);
- Streamer.EmitLabel(C.getOrCreateSymbol(StringRef("OBJC_IMAGE_INFO")));
- Streamer.EmitIntValue(Version, 4);
- Streamer.EmitIntValue(Flags, 4);
- Streamer.AddBlankLine();
- }
-
- SmallVector<Module::ModuleFlagEntry, 8> ModuleFlags;
- M.getModuleFlagsMetadata(ModuleFlags);
-
- MDNode *CFGProfile = nullptr;
-
- for (const auto &MFE : ModuleFlags) {
- StringRef Key = MFE.Key->getString();
- if (Key == "CG Profile") {
- CFGProfile = cast<MDNode>(MFE.Val);
- break;
- }
- }
-
- if (!CFGProfile)
+ if (Section.empty())
return;
- auto GetSym = [this](const MDOperand &MDO) {
- auto V = cast<ValueAsMetadata>(MDO);
- const Function *F = cast<Function>(V->getValue());
- return TM->getSymbol(F);
- };
-
- for (const auto &Edge : CFGProfile->operands()) {
- MDNode *E = cast<MDNode>(Edge);
- const MCSymbol *From = GetSym(E->getOperand(0));
- const MCSymbol *To = GetSym(E->getOperand(1));
- uint64_t Count = cast<ConstantAsMetadata>(E->getOperand(2))
- ->getValue()
- ->getUniqueInteger()
- .getZExtValue();
- Streamer.emitCGProfileEntry(
- MCSymbolRefExpr::create(From, MCSymbolRefExpr::VK_None, C),
- MCSymbolRefExpr::create(To, MCSymbolRefExpr::VK_None, C), Count);
- }
+ auto *S = C.getELFSection(Section, ELF::SHT_PROGBITS, ELF::SHF_ALLOC);
+ Streamer.SwitchSection(S);
+ Streamer.EmitLabel(C.getOrCreateSymbol(StringRef("OBJC_IMAGE_INFO")));
+ Streamer.EmitIntValue(Version, 4);
+ Streamer.EmitIntValue(Flags, 4);
+ Streamer.AddBlankLine();
}
MCSymbol *TargetLoweringObjectFileELF::getCFIPersonalitySymbol(
Modified: llvm/trunk/lib/IR/Verifier.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/Verifier.cpp?rev=335851&r1=335850&r2=335851&view=diff
==============================================================================
--- llvm/trunk/lib/IR/Verifier.cpp (original)
+++ llvm/trunk/lib/IR/Verifier.cpp Thu Jun 28 06:15:03 2018
@@ -409,7 +409,6 @@ private:
void visitModuleFlag(const MDNode *Op,
DenseMap<const MDString *, const MDNode *> &SeenIDs,
SmallVectorImpl<const MDNode *> &Requirements);
- void visitModuleFlagCGProfileEntry(const MDOperand &MDO);
void visitFunction(const Function &F);
void visitBasicBlock(BasicBlock &BB);
void visitRangeMetadata(Instruction &I, MDNode *Range, Type *Ty);
@@ -1412,25 +1411,6 @@ Verifier::visitModuleFlag(const MDNode *
Assert(M.getNamedMetadata("llvm.linker.options"),
"'Linker Options' named metadata no longer supported");
}
-
- if (ID->getString() == "CG Profile") {
- for (const MDOperand &MDO : cast<MDNode>(Op->getOperand(2))->operands())
- visitModuleFlagCGProfileEntry(MDO);
- }
-}
-
-void Verifier::visitModuleFlagCGProfileEntry(const MDOperand &MDO) {
- auto Node = dyn_cast_or_null<MDNode>(MDO);
- Assert(Node && Node->getNumOperands() == 3, "expected a MDNode triple", MDO);
- auto From = dyn_cast_or_null<ValueAsMetadata>(Node->getOperand(0));
- Assert(From && isa<Function>(From->getValue()), "expected a Function",
- Node->getOperand(0));
- auto To = dyn_cast_or_null<ValueAsMetadata>(Node->getOperand(1));
- Assert(To && isa<Function>(To->getValue()), "expected a Function",
- Node->getOperand(1));
- auto Count = dyn_cast_or_null<ConstantAsMetadata>(Node->getOperand(2));
- Assert(Count && Count->getType()->isIntegerTy(),
- "expected an integer constant", Node->getOperand(2));
}
/// Return true if this attribute kind only applies to functions.
Modified: llvm/trunk/lib/Passes/PassBuilder.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Passes/PassBuilder.cpp?rev=335851&r1=335850&r2=335851&view=diff
==============================================================================
--- llvm/trunk/lib/Passes/PassBuilder.cpp (original)
+++ llvm/trunk/lib/Passes/PassBuilder.cpp Thu Jun 28 06:15:03 2018
@@ -61,7 +61,6 @@
#include "llvm/Target/TargetMachine.h"
#include "llvm/Transforms/AggressiveInstCombine/AggressiveInstCombine.h"
#include "llvm/Transforms/Instrumentation/GCOVProfiler.h"
-#include "llvm/Transforms/Instrumentation/CGProfile.h"
#include "llvm/Transforms/IPO/AlwaysInliner.h"
#include "llvm/Transforms/IPO/ArgumentPromotion.h"
#include "llvm/Transforms/IPO/CalledValuePropagation.h"
@@ -833,8 +832,6 @@ PassBuilder::buildModuleOptimizationPipe
// Add the core optimizing pipeline.
MPM.addPass(createModuleToFunctionPassAdaptor(std::move(OptimizePM)));
- MPM.addPass(CGProfilePass());
-
// Now we need to do some global optimization transforms.
// FIXME: It would seem like these should come first in the optimization
// pipeline and maybe be the bottom of the canonicalization pipeline? Weird
Modified: llvm/trunk/lib/Passes/PassRegistry.def
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Passes/PassRegistry.def?rev=335851&r1=335850&r2=335851&view=diff
==============================================================================
--- llvm/trunk/lib/Passes/PassRegistry.def (original)
+++ llvm/trunk/lib/Passes/PassRegistry.def Thu Jun 28 06:15:03 2018
@@ -40,7 +40,6 @@ MODULE_ALIAS_ANALYSIS("globals-aa", Glob
#endif
MODULE_PASS("always-inline", AlwaysInlinerPass())
MODULE_PASS("called-value-propagation", CalledValuePropagationPass())
-MODULE_PASS("cg-profile", CGProfilePass())
MODULE_PASS("constmerge", ConstantMergePass())
MODULE_PASS("cross-dso-cfi", CrossDSOCFIPass())
MODULE_PASS("deadargelim", DeadArgumentEliminationPass())
Removed: llvm/trunk/lib/Transforms/Instrumentation/CGProfile.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Instrumentation/CGProfile.cpp?rev=335850&view=auto
==============================================================================
--- llvm/trunk/lib/Transforms/Instrumentation/CGProfile.cpp (original)
+++ llvm/trunk/lib/Transforms/Instrumentation/CGProfile.cpp (removed)
@@ -1,100 +0,0 @@
-//===-- CGProfile.cpp -----------------------------------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Transforms/Instrumentation/CGProfile.h"
-
-#include "llvm/ADT/MapVector.h"
-#include "llvm/Analysis/BlockFrequencyInfo.h"
-#include "llvm/Analysis/TargetTransformInfo.h"
-#include "llvm/IR/CallSite.h"
-#include "llvm/IR/Constants.h"
-#include "llvm/IR/Instructions.h"
-#include "llvm/IR/MDBuilder.h"
-#include "llvm/IR/PassManager.h"
-#include "llvm/ProfileData/InstrProf.h"
-#include "llvm/Transforms/Instrumentation.h"
-
-#include <array>
-
-using namespace llvm;
-
-PreservedAnalyses CGProfilePass::run(Module &M, ModuleAnalysisManager &MAM) {
- MapVector<std::pair<Function *, Function *>, uint64_t> Counts;
- FunctionAnalysisManager &FAM =
- MAM.getResult<FunctionAnalysisManagerModuleProxy>(M).getManager();
- InstrProfSymtab Symtab;
- auto UpdateCounts = [&](TargetTransformInfo &TTI, Function *F,
- Function *CalledF, uint64_t NewCount) {
- if (!CalledF || !TTI.isLoweredToCall(CalledF))
- return;
- uint64_t &Count = Counts[std::make_pair(F, CalledF)];
- Count = SaturatingAdd(Count, NewCount);
- };
- // Ignore error here. Indirect calls are ignored if this fails.
- (void)(bool)Symtab.create(M);
- for (auto &F : M) {
- if (F.isDeclaration())
- continue;
- auto &BFI = FAM.getResult<BlockFrequencyAnalysis>(F);
- if (BFI.getEntryFreq() == 0)
- continue;
- TargetTransformInfo &TTI = FAM.getResult<TargetIRAnalysis>(F);
- for (auto &BB : F) {
- Optional<uint64_t> BBCount = BFI.getBlockProfileCount(&BB);
- if (!BBCount)
- continue;
- for (auto &I : BB) {
- CallSite CS(&I);
- if (!CS)
- continue;
- if (CS.isIndirectCall()) {
- InstrProfValueData ValueData[8];
- uint32_t ActualNumValueData;
- uint64_t TotalC;
- if (!getValueProfDataFromInst(*CS.getInstruction(),
- IPVK_IndirectCallTarget, 8, ValueData,
- ActualNumValueData, TotalC))
- continue;
- for (const auto &VD :
- ArrayRef<InstrProfValueData>(ValueData, ActualNumValueData)) {
- UpdateCounts(TTI, &F, Symtab.getFunction(VD.Value), VD.Count);
- }
- continue;
- }
- UpdateCounts(TTI, &F, CS.getCalledFunction(), *BBCount);
- }
- }
- }
-
- addModuleFlags(M, Counts);
-
- return PreservedAnalyses::all();
-}
-
-void CGProfilePass::addModuleFlags(
- Module &M,
- MapVector<std::pair<Function *, Function *>, uint64_t> &Counts) const {
- if (Counts.empty())
- return;
-
- LLVMContext &Context = M.getContext();
- MDBuilder MDB(Context);
- std::vector<Metadata *> Nodes;
-
- for (auto E : Counts) {
- SmallVector<Metadata *, 3> Vals;
- Vals.push_back(ValueAsMetadata::get(E.first.first));
- Vals.push_back(ValueAsMetadata::get(E.first.second));
- Vals.push_back(MDB.createConstant(
- ConstantInt::get(Type::getInt64Ty(Context), E.second)));
- Nodes.push_back(MDNode::get(Context, Vals));
- }
-
- M.addModuleFlag(Module::Append, "CG Profile", MDNode::get(Context, Nodes));
-}
Modified: llvm/trunk/lib/Transforms/Instrumentation/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Instrumentation/CMakeLists.txt?rev=335851&r1=335850&r2=335851&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Instrumentation/CMakeLists.txt (original)
+++ llvm/trunk/lib/Transforms/Instrumentation/CMakeLists.txt Thu Jun 28 06:15:03 2018
@@ -1,7 +1,6 @@
add_llvm_library(LLVMInstrumentation
AddressSanitizer.cpp
BoundsChecking.cpp
- CGProfile.cpp
DataFlowSanitizer.cpp
GCOVProfiling.cpp
MemorySanitizer.cpp
Removed: llvm/trunk/test/Instrumentation/cgprofile.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Instrumentation/cgprofile.ll?rev=335850&view=auto
==============================================================================
--- llvm/trunk/test/Instrumentation/cgprofile.ll (original)
+++ llvm/trunk/test/Instrumentation/cgprofile.ll (removed)
@@ -1,41 +0,0 @@
-; RUN: opt < %s -passes cg-profile -S | FileCheck %s
-
-declare void @b()
-
-define void @a() !prof !1 {
- call void @b()
- ret void
-}
-
- at foo = common global i32 ()* null, align 8
-declare i32 @func1()
-declare i32 @func2()
-declare i32 @func3()
-declare i32 @func4()
-
-define void @freq(i1 %cond) !prof !1 {
- %tmp = load i32 ()*, i32 ()** @foo, align 8
- call i32 %tmp(), !prof !3
- br i1 %cond, label %A, label %B, !prof !2
-A:
- call void @a();
- ret void
-B:
- call void @b();
- ret void
-}
-
-!1 = !{!"function_entry_count", i64 32}
-!2 = !{!"branch_weights", i32 5, i32 10}
-!3 = !{!"VP", i32 0, i64 1600, i64 7651369219802541373, i64 1030, i64 -4377547752858689819, i64 410, i64 -6929281286627296573, i64 150, i64 -2545542355363006406, i64 10}
-
-; CHECK: !llvm.module.flags = !{![[cgprof:[0-9]+]]}
-; CHECK: ![[cgprof]] = !{i32 5, !"CG Profile", ![[prof:[0-9]+]]}
-; CHECK: ![[prof]] = !{![[e0:[0-9]+]], ![[e1:[0-9]+]], ![[e2:[0-9]+]], ![[e3:[0-9]+]], ![[e4:[0-9]+]], ![[e5:[0-9]+]], ![[e6:[0-9]+]]}
-; CHECK: ![[e0]] = !{void ()* @a, void ()* @b, i64 32}
-; CHECK: ![[e1]] = !{void (i1)* @freq, i32 ()* @func4, i64 1030}
-; CHECK: ![[e2]] = !{void (i1)* @freq, i32 ()* @func2, i64 410}
-; CHECK: ![[e3]] = !{void (i1)* @freq, i32 ()* @func3, i64 150}
-; CHECK: ![[e4]] = !{void (i1)* @freq, i32 ()* @func1, i64 10}
-; CHECK: ![[e5]] = !{void (i1)* @freq, void ()* @a, i64 11}
-; CHECK: ![[e6]] = !{void (i1)* @freq, void ()* @b, i64 20}
Removed: llvm/trunk/test/MC/ELF/cgprofile.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/ELF/cgprofile.ll?rev=335850&view=auto
==============================================================================
--- llvm/trunk/test/MC/ELF/cgprofile.ll (original)
+++ llvm/trunk/test/MC/ELF/cgprofile.ll (removed)
@@ -1,50 +0,0 @@
-; RUN: llc -filetype=asm %s -o - -mtriple x86_64-pc-linux-gnu | FileCheck %s
-; RUN: llc -filetype=obj %s -o %t -mtriple x86_64-pc-linux-gnu
-; RUN: llvm-readobj -elf-cg-profile %t | FileCheck %s --check-prefix=OBJ
-
-declare void @b()
-
-define void @a() {
- call void @b()
- ret void
-}
-
-define void @freq(i1 %cond) {
- br i1 %cond, label %A, label %B
-A:
- call void @a();
- ret void
-B:
- call void @b();
- ret void
-}
-
-!llvm.module.flags = !{!0}
-
-!0 = !{i32 5, !"CG Profile", !1}
-!1 = !{!2, !3, !4}
-!2 = !{void ()* @a, void ()* @b, i64 32}
-!3 = !{void (i1)* @freq, void ()* @a, i64 11}
-!4 = !{void (i1)* @freq, void ()* @b, i64 20}
-
-; CHECK: .cg_profile a, b, 32
-; CHECK: .cg_profile freq, a, 11
-; CHECK: .cg_profile freq, b, 20
-
-; OBJ: CGProfile [
-; OBJ: CGProfileEntry {
-; OBJ: From: a
-; OBJ: To: b
-; OBJ: Weight: 32
-; OBJ: }
-; OBJ: CGProfileEntry {
-; OBJ: From: freq
-; OBJ: To: a
-; OBJ: Weight: 11
-; OBJ: }
-; OBJ: CGProfileEntry {
-; OBJ: From: freq
-; OBJ: To: b
-; OBJ: Weight: 20
-; OBJ: }
-; OBJ:]
Modified: llvm/trunk/test/Other/new-pm-defaults.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Other/new-pm-defaults.ll?rev=335851&r1=335850&r2=335851&view=diff
==============================================================================
--- llvm/trunk/test/Other/new-pm-defaults.ll (original)
+++ llvm/trunk/test/Other/new-pm-defaults.ll Thu Jun 28 06:15:03 2018
@@ -246,7 +246,6 @@
; CHECK-O-NEXT: Running pass: SimplifyCFGPass
; CHECK-O-NEXT: Running pass: SpeculateAroundPHIsPass
; CHECK-O-NEXT: Finished llvm::Function pass manager run.
-; CHECK-O-NEXT: Running pass: CGProfilePass
; CHECK-O-NEXT: Running pass: GlobalDCEPass
; CHECK-O-NEXT: Running pass: ConstantMergePass
; CHECK-O-NEXT: Finished llvm::Module pass manager run.
Modified: llvm/trunk/test/Other/new-pm-thinlto-defaults.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Other/new-pm-thinlto-defaults.ll?rev=335851&r1=335850&r2=335851&view=diff
==============================================================================
--- llvm/trunk/test/Other/new-pm-thinlto-defaults.ll (original)
+++ llvm/trunk/test/Other/new-pm-thinlto-defaults.ll Thu Jun 28 06:15:03 2018
@@ -224,7 +224,6 @@
; CHECK-POSTLINK-O-NEXT: Running pass: SimplifyCFGPass
; CHECK-POSTLINK-O-NEXT: Running pass: SpeculateAroundPHIsPass
; CHECK-POSTLINK-O-NEXT: Finished llvm::Function pass manager run.
-; CHECK-POSTLINK-O-NEXT: Running pass: CGProfilePass
; CHECK-POSTLINK-O-NEXT: Running pass: GlobalDCEPass
; CHECK-POSTLINK-O-NEXT: Running pass: ConstantMergePass
; CHECK-POSTLINK-O-NEXT: Finished llvm::Module pass manager run.
Removed: llvm/trunk/test/Verifier/module-flags-cgprofile.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Verifier/module-flags-cgprofile.ll?rev=335850&view=auto
==============================================================================
--- llvm/trunk/test/Verifier/module-flags-cgprofile.ll (original)
+++ llvm/trunk/test/Verifier/module-flags-cgprofile.ll (removed)
@@ -1,30 +0,0 @@
-; RUN: not llvm-as < %s -o /dev/null 2>&1 | FileCheck %s
-
-declare void @b()
-declare void @a()
-
-!llvm.module.flags = !{!0}
-
-!0 = !{i32 5, !"CG Profile", !1}
-!1 = !{!2, !"", !3, !4, !5, !6, !7, !8}
-!2 = !{void ()* @a, void ()* @b, i64 32}
-!3 = !{void ()* @a, void ()* @b}
-!4 = !{void ()* @a, void ()* @b, i64 32, i64 32}
-!5 = !{!"a", void ()* @b, i64 32}
-!6 = !{void ()* @a, !"b", i64 32}
-!7 = !{void ()* @a, void ()* @b, !""}
-!8 = !{void ()* @a, void ()* @b, null}
-
-; CHECK: expected a MDNode triple
-; CHECK: !""
-; CHECK: expected a MDNode triple
-; CHECK: !3 = !{void ()* @a, void ()* @b}
-; CHECK: expected a MDNode triple
-; CHECK: !4 = !{void ()* @a, void ()* @b, i64 32, i64 32}
-; CHECK: expected a Function
-; CHECK: !"a"
-; CHECK: expected a Function
-; CHECK: !"b"
-; CHECK: expected an integer constant
-; CHECK: !""
-; CHECK: expected an integer constant
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