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[InstrProfiling] Mark __llvm_profile_instrument_target last parameter as i32 zeroext if appropriate.

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On some architectures (s390x, ppc64, sparc64, mips), C-level int is passed
as i32 signext instead of plain i32.  Likewise, unsigned int may be passed
as i32, i32 signext, or i32 zeroext depending on the platform.  Mark
__llvm_profile_instrument_target properly (its last parameter is unsigned
int).

This (together with the clang change) makes compiler-rt profile testsuite pass
on s390x.

Differential Revision: http://reviews.llvm.org/D21736

llvm-svn: 287534
This commit is contained in:
Marcin Koscielnicki 2016-11-21 11:57:19 +00:00
parent 3aa3dc33a3
commit 84d15a6c72
3 changed files with 49 additions and 12 deletions
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5
include/llvm/Transforms/InstrProfiling.h
View File

@ -21,6 +21,8 @@
namespace llvm {
class TargetLibraryInfo;
/// Instrumentation based profiling lowering pass. This pass lowers
/// the profile instrumented code generated by FE or the IR based
/// instrumentation pass.
@ -30,11 +32,12 @@ public:
InstrProfiling(const InstrProfOptions &Options) : Options(Options) {}
PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
bool run(Module &M);
bool run(Module &M, const TargetLibraryInfo &TLI);
private:
InstrProfOptions Options;
Module *M;
const TargetLibraryInfo *TLI;
struct PerFunctionProfileData {
uint32_t NumValueSites[IPVK_Last + 1];
GlobalVariable *RegionCounters;

41
lib/Transforms/Instrumentation/InstrProfiling.cpp
View File

@ -15,6 +15,7 @@
#include "llvm/Transforms/InstrProfiling.h"
#include "llvm/ADT/Triple.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Module.h"
@ -57,26 +58,34 @@ public:
return "Frontend instrumentation-based coverage lowering";
}
bool runOnModule(Module &M) override { return InstrProf.run(M); }
bool runOnModule(Module &M) override {
return InstrProf.run(M, getAnalysis<TargetLibraryInfoWrapperPass>().getTLI());
}
void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.setPreservesCFG();
AU.addRequired<TargetLibraryInfoWrapperPass>();
}
};
} // anonymous namespace
PreservedAnalyses InstrProfiling::run(Module &M, ModuleAnalysisManager &AM) {
if (!run(M))
auto &TLI = AM.getResult<TargetLibraryAnalysis>(M);
if (!run(M, TLI))
return PreservedAnalyses::all();
return PreservedAnalyses::none();
}
char InstrProfilingLegacyPass::ID = 0;
INITIALIZE_PASS(InstrProfilingLegacyPass, "instrprof",
"Frontend instrumentation-based coverage lowering.", false,
false)
INITIALIZE_PASS_BEGIN(
InstrProfilingLegacyPass, "instrprof",
"Frontend instrumentation-based coverage lowering.", false, false)
INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfoWrapperPass)
INITIALIZE_PASS_END(
InstrProfilingLegacyPass, "instrprof",
"Frontend instrumentation-based coverage lowering.", false, false)
ModulePass *
llvm::createInstrProfilingLegacyPass(const InstrProfOptions &Options) {
@ -114,10 +123,11 @@ static InstrProfIncrementInst *castToIncrementInst(Instruction *Instr) {
return dyn_cast<InstrProfIncrementInst>(Instr);
}
bool InstrProfiling::run(Module &M) {
bool InstrProfiling::run(Module &M, const TargetLibraryInfo &TLI) {
bool MadeChange = false;
this->M = &M;
this->TLI = &TLI;
NamesVar = nullptr;
NamesSize = 0;
ProfileDataMap.clear();
@ -173,7 +183,8 @@ bool InstrProfiling::run(Module &M) {
return true;
}
static Constant *getOrInsertValueProfilingCall(Module &M) {
static Constant *getOrInsertValueProfilingCall(Module &M,
const TargetLibraryInfo &TLI) {
LLVMContext &Ctx = M.getContext();
auto *ReturnTy = Type::getVoidTy(M.getContext());
Type *ParamTypes[] = {
@ -182,8 +193,13 @@ static Constant *getOrInsertValueProfilingCall(Module &M) {
};
auto *ValueProfilingCallTy =
FunctionType::get(ReturnTy, makeArrayRef(ParamTypes), false);
return M.getOrInsertFunction(getInstrProfValueProfFuncName(),
ValueProfilingCallTy);
Constant *Res = M.getOrInsertFunction(getInstrProfValueProfFuncName(),
ValueProfilingCallTy);
if (Function *FunRes = dyn_cast<Function>(Res)) {
if (auto AK = TLI.getExtAttrForI32Param(false))
FunRes->addAttribute(3, AK);
}
return Res;
}
void InstrProfiling::computeNumValueSiteCounts(InstrProfValueProfileInst *Ind) {
@ -217,8 +233,11 @@ void InstrProfiling::lowerValueProfileInst(InstrProfValueProfileInst *Ind) {
Value *Args[3] = {Ind->getTargetValue(),
Builder.CreateBitCast(DataVar, Builder.getInt8PtrTy()),
Builder.getInt32(Index)};
Ind->replaceAllUsesWith(
Builder.CreateCall(getOrInsertValueProfilingCall(*M), Args));
CallInst *Call = Builder.CreateCall(getOrInsertValueProfilingCall(*M, *TLI),
Args);
if (auto AK = TLI->getExtAttrForI32Param(false))
Call->addAttribute(3, AK);
Ind->replaceAllUsesWith(Call);
Ind->eraseFromParent();
}

15
test/Instrumentation/InstrProfiling/icall.ll
View File

@ -2,6 +2,13 @@
; RUN: opt < %s -mtriple=x86_64-apple-macosx10.10.0 -vp-static-alloc=true -instrprof -S | FileCheck %s --check-prefix=STATIC
; RUN: opt < %s -mtriple=x86_64-unknown-linux -instrprof -vp-static-alloc=true -S | FileCheck %s --check-prefix=STATIC
; RUN: opt < %s -mtriple=powerpc-unknown-linux -instrprof -vp-static-alloc=true -S | FileCheck %s --check-prefix=STATIC
; RUN: opt < %s -mtriple=sparc-unknown-linux -instrprof -vp-static-alloc=true -S | FileCheck %s --check-prefix=STATIC
; RUN: opt < %s -mtriple=s390x-unknown-linux -instrprof -vp-static-alloc=true -S | FileCheck %s --check-prefix=STATIC-EXT
; RUN: opt < %s -mtriple=powerpc64-unknown-linux -instrprof -vp-static-alloc=true -S | FileCheck %s --check-prefix=STATIC-EXT
; RUN: opt < %s -mtriple=sparc64-unknown-linux -instrprof -vp-static-alloc=true -S | FileCheck %s --check-prefix=STATIC-EXT
; RUN: opt < %s -mtriple=mips-unknown-linux -instrprof -vp-static-alloc=true -S | FileCheck %s --check-prefix=STATIC-SEXT
; RUN: opt < %s -mtriple=mips64-unknown-linux -instrprof -vp-static-alloc=true -S | FileCheck %s --check-prefix=STATIC-SEXT
; RUN: opt < %s -mtriple=x86_64-apple-macosx10.10.0 -vp-static-alloc=false -instrprof -S | FileCheck %s --check-prefix=DYN
; RUN: opt < %s -mtriple=x86_64-unknown-linux -instrprof -vp-static-alloc=false -S | FileCheck %s --check-prefix=DYN
@ -29,3 +36,11 @@ attributes #0 = { nounwind }
; DYN-NOT: @__profvp_foo
; DYN-NOT: @__llvm_prf_vnodes
; STATIC: call void @__llvm_profile_instrument_target(i64 %3, i8* bitcast ({ i64, i64, i64*, i8*, i8*, i32, [1 x i16] }* @__profd_foo to i8*), i32 0)
; STATIC-EXT: call void @__llvm_profile_instrument_target(i64 %3, i8* bitcast ({ i64, i64, i64*, i8*, i8*, i32, [1 x i16] }* @__profd_foo to i8*), i32 zeroext 0)
; STATIC-SEXT: call void @__llvm_profile_instrument_target(i64 %3, i8* bitcast ({ i64, i64, i64*, i8*, i8*, i32, [1 x i16] }* @__profd_foo to i8*), i32 signext 0)
; STATIC: declare void @__llvm_profile_instrument_target(i64, i8*, i32)
; STATIC-EXT: declare void @__llvm_profile_instrument_target(i64, i8*, i32 zeroext)
; STATIC-SEXT: declare void @__llvm_profile_instrument_target(i64, i8*, i32 signext)