[llvm] r344645 - [InstCombine] Cleanup libfunc attribute inferring
David Bolvansky via llvm-commits
llvm-commits at lists.llvm.org
Tue Oct 16 14:18:31 PDT 2018
Author: xbolva00
Date: Tue Oct 16 14:18:31 2018
New Revision: 344645
URL: http://llvm.org/viewvc/llvm-project?rev=344645&view=rev
Log:
[InstCombine] Cleanup libfunc attribute inferring
Reviewers: efriedma
Reviewed By: efriedma
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D53338
Modified:
llvm/trunk/include/llvm/Transforms/Utils/BuildLibCalls.h
llvm/trunk/lib/Transforms/IPO/InferFunctionAttrs.cpp
llvm/trunk/lib/Transforms/Scalar/LoopIdiomRecognize.cpp
llvm/trunk/lib/Transforms/Utils/BuildLibCalls.cpp
llvm/trunk/lib/Transforms/Utils/SimplifyLibCalls.cpp
llvm/trunk/test/Transforms/InstCombine/pr39177.ll
Modified: llvm/trunk/include/llvm/Transforms/Utils/BuildLibCalls.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Transforms/Utils/BuildLibCalls.h?rev=344645&r1=344644&r2=344645&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Transforms/Utils/BuildLibCalls.h (original)
+++ llvm/trunk/include/llvm/Transforms/Utils/BuildLibCalls.h Tue Oct 16 14:18:31 2018
@@ -28,7 +28,8 @@ namespace llvm {
/// If the library function is unavailable, this doesn't modify it.
///
/// Returns true if any attributes were set and false otherwise.
- bool inferLibFuncAttributes(Function *Func, const TargetLibraryInfo &TLI);
+ bool inferLibFuncAttributes(Function &F, const TargetLibraryInfo &TLI);
+ bool inferLibFuncAttributes(Module *M, StringRef Name, const TargetLibraryInfo &TLI);
/// Check whether the overloaded unary floating point function
/// corresponding to \a Ty is available.
Modified: llvm/trunk/lib/Transforms/IPO/InferFunctionAttrs.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/IPO/InferFunctionAttrs.cpp?rev=344645&r1=344644&r2=344645&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/IPO/InferFunctionAttrs.cpp (original)
+++ llvm/trunk/lib/Transforms/IPO/InferFunctionAttrs.cpp Tue Oct 16 14:18:31 2018
@@ -27,7 +27,7 @@ static bool inferAllPrototypeAttributes(
// We only infer things using the prototype and the name; we don't need
// definitions.
if (F.isDeclaration() && !F.hasFnAttribute((Attribute::OptimizeNone)))
- Changed |= inferLibFuncAttributes(&F, TLI);
+ Changed |= inferLibFuncAttributes(F, TLI);
return Changed;
}
Modified: llvm/trunk/lib/Transforms/Scalar/LoopIdiomRecognize.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/LoopIdiomRecognize.cpp?rev=344645&r1=344644&r2=344645&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/LoopIdiomRecognize.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/LoopIdiomRecognize.cpp Tue Oct 16 14:18:31 2018
@@ -928,10 +928,11 @@ bool LoopIdiomRecognize::processLoopStri
Type *Int8PtrTy = DestInt8PtrTy;
Module *M = TheStore->getModule();
+ StringRef FuncName = "memset_pattern16";
Value *MSP =
- M->getOrInsertFunction("memset_pattern16", Builder.getVoidTy(),
+ M->getOrInsertFunction(FuncName, Builder.getVoidTy(),
Int8PtrTy, Int8PtrTy, IntPtr);
- inferLibFuncAttributes(M->getFunction("memset_pattern16"), *TLI);
+ inferLibFuncAttributes(M, FuncName, *TLI);
// Otherwise we should form a memset_pattern16. PatternValue is known to be
// an constant array of 16-bytes. Plop the value into a mergable global.
Modified: llvm/trunk/lib/Transforms/Utils/BuildLibCalls.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Utils/BuildLibCalls.cpp?rev=344645&r1=344644&r2=344645&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Utils/BuildLibCalls.cpp (original)
+++ llvm/trunk/lib/Transforms/Utils/BuildLibCalls.cpp Tue Oct 16 14:18:31 2018
@@ -121,11 +121,15 @@ static bool setNonLazyBind(Function &F)
return true;
}
-bool llvm::inferLibFuncAttributes(Function *Func,
+bool llvm::inferLibFuncAttributes(Module *M, StringRef Name,
const TargetLibraryInfo &TLI) {
- if (!Func)
+ Function *F = M->getFunction(Name);
+ if (!F)
return false;
- Function &F = *Func;
+ return inferLibFuncAttributes(*F, TLI);
+}
+
+bool llvm::inferLibFuncAttributes(Function &F, const TargetLibraryInfo &TLI) {
LibFunc TheLibFunc;
if (!(TLI.getLibFunc(F, TheLibFunc) && TLI.has(TheLibFunc)))
return false;
@@ -774,11 +778,12 @@ Value *llvm::emitStrLen(Value *Ptr, IRBu
return nullptr;
Module *M = B.GetInsertBlock()->getModule();
+ StringRef StrlenName = TLI->getName(LibFunc_strlen);
LLVMContext &Context = B.GetInsertBlock()->getContext();
- Constant *StrLen = M->getOrInsertFunction("strlen", DL.getIntPtrType(Context),
+ Constant *StrLen = M->getOrInsertFunction(StrlenName, DL.getIntPtrType(Context),
B.getInt8PtrTy());
- inferLibFuncAttributes(M->getFunction("strlen"), *TLI);
- CallInst *CI = B.CreateCall(StrLen, castToCStr(Ptr, B), "strlen");
+ inferLibFuncAttributes(M, StrlenName, *TLI);
+ CallInst *CI = B.CreateCall(StrLen, castToCStr(Ptr, B), StrlenName);
if (const Function *F = dyn_cast<Function>(StrLen->stripPointerCasts()))
CI->setCallingConv(F->getCallingConv());
@@ -791,13 +796,14 @@ Value *llvm::emitStrChr(Value *Ptr, char
return nullptr;
Module *M = B.GetInsertBlock()->getModule();
+ StringRef StrChrName = TLI->getName(LibFunc_strchr);
Type *I8Ptr = B.getInt8PtrTy();
Type *I32Ty = B.getInt32Ty();
Constant *StrChr =
- M->getOrInsertFunction("strchr", I8Ptr, I8Ptr, I32Ty);
- inferLibFuncAttributes(M->getFunction("strchr"), *TLI);
+ M->getOrInsertFunction(StrChrName, I8Ptr, I8Ptr, I32Ty);
+ inferLibFuncAttributes(M, StrChrName, *TLI);
CallInst *CI = B.CreateCall(
- StrChr, {castToCStr(Ptr, B), ConstantInt::get(I32Ty, C)}, "strchr");
+ StrChr, {castToCStr(Ptr, B), ConstantInt::get(I32Ty, C)}, StrChrName);
if (const Function *F = dyn_cast<Function>(StrChr->stripPointerCasts()))
CI->setCallingConv(F->getCallingConv());
return CI;
@@ -809,13 +815,14 @@ Value *llvm::emitStrNCmp(Value *Ptr1, Va
return nullptr;
Module *M = B.GetInsertBlock()->getModule();
+ StringRef StrNCmpName = TLI->getName(LibFunc_strncmp);
LLVMContext &Context = B.GetInsertBlock()->getContext();
- Value *StrNCmp = M->getOrInsertFunction("strncmp", B.getInt32Ty(),
+ Value *StrNCmp = M->getOrInsertFunction(StrNCmpName, B.getInt32Ty(),
B.getInt8PtrTy(), B.getInt8PtrTy(),
DL.getIntPtrType(Context));
- inferLibFuncAttributes(M->getFunction("strncmp"), *TLI);
+ inferLibFuncAttributes(M, StrNCmpName, *TLI);
CallInst *CI = B.CreateCall(
- StrNCmp, {castToCStr(Ptr1, B), castToCStr(Ptr2, B), Len}, "strncmp");
+ StrNCmp, {castToCStr(Ptr1, B), castToCStr(Ptr2, B), Len}, StrNCmpName);
if (const Function *F = dyn_cast<Function>(StrNCmp->stripPointerCasts()))
CI->setCallingConv(F->getCallingConv());
@@ -831,7 +838,7 @@ Value *llvm::emitStrCpy(Value *Dst, Valu
Module *M = B.GetInsertBlock()->getModule();
Type *I8Ptr = B.getInt8PtrTy();
Value *StrCpy = M->getOrInsertFunction(Name, I8Ptr, I8Ptr, I8Ptr);
- inferLibFuncAttributes(M->getFunction(Name), *TLI);
+ inferLibFuncAttributes(M, Name, *TLI);
CallInst *CI =
B.CreateCall(StrCpy, {castToCStr(Dst, B), castToCStr(Src, B)}, Name);
if (const Function *F = dyn_cast<Function>(StrCpy->stripPointerCasts()))
@@ -848,9 +855,9 @@ Value *llvm::emitStrNCpy(Value *Dst, Val
Type *I8Ptr = B.getInt8PtrTy();
Value *StrNCpy = M->getOrInsertFunction(Name, I8Ptr, I8Ptr, I8Ptr,
Len->getType());
- inferLibFuncAttributes(M->getFunction(Name), *TLI);
+ inferLibFuncAttributes(M, Name, *TLI);
CallInst *CI = B.CreateCall(
- StrNCpy, {castToCStr(Dst, B), castToCStr(Src, B), Len}, "strncpy");
+ StrNCpy, {castToCStr(Dst, B), castToCStr(Src, B), Len}, Name);
if (const Function *F = dyn_cast<Function>(StrNCpy->stripPointerCasts()))
CI->setCallingConv(F->getCallingConv());
return CI;
@@ -885,12 +892,13 @@ Value *llvm::emitMemChr(Value *Ptr, Valu
return nullptr;
Module *M = B.GetInsertBlock()->getModule();
+ StringRef MemChrName = TLI->getName(LibFunc_memchr);
LLVMContext &Context = B.GetInsertBlock()->getContext();
- Value *MemChr = M->getOrInsertFunction("memchr", B.getInt8PtrTy(),
+ Value *MemChr = M->getOrInsertFunction(MemChrName, B.getInt8PtrTy(),
B.getInt8PtrTy(), B.getInt32Ty(),
DL.getIntPtrType(Context));
- inferLibFuncAttributes(M->getFunction("memchr"), *TLI);
- CallInst *CI = B.CreateCall(MemChr, {castToCStr(Ptr, B), Val, Len}, "memchr");
+ inferLibFuncAttributes(M, MemChrName, *TLI);
+ CallInst *CI = B.CreateCall(MemChr, {castToCStr(Ptr, B), Val, Len}, MemChrName);
if (const Function *F = dyn_cast<Function>(MemChr->stripPointerCasts()))
CI->setCallingConv(F->getCallingConv());
@@ -904,13 +912,14 @@ Value *llvm::emitMemCmp(Value *Ptr1, Val
return nullptr;
Module *M = B.GetInsertBlock()->getModule();
+ StringRef MemCmpName = TLI->getName(LibFunc_memcmp);
LLVMContext &Context = B.GetInsertBlock()->getContext();
- Value *MemCmp = M->getOrInsertFunction("memcmp", B.getInt32Ty(),
+ Value *MemCmp = M->getOrInsertFunction(MemCmpName, B.getInt32Ty(),
B.getInt8PtrTy(), B.getInt8PtrTy(),
DL.getIntPtrType(Context));
- inferLibFuncAttributes(M->getFunction("memcmp"), *TLI);
+ inferLibFuncAttributes(M, MemCmpName, *TLI);
CallInst *CI = B.CreateCall(
- MemCmp, {castToCStr(Ptr1, B), castToCStr(Ptr2, B), Len}, "memcmp");
+ MemCmp, {castToCStr(Ptr1, B), castToCStr(Ptr2, B), Len}, MemCmpName);
if (const Function *F = dyn_cast<Function>(MemCmp->stripPointerCasts()))
CI->setCallingConv(F->getCallingConv());
@@ -977,14 +986,15 @@ Value *llvm::emitPutChar(Value *Char, IR
return nullptr;
Module *M = B.GetInsertBlock()->getModule();
- Value *PutChar = M->getOrInsertFunction("putchar", B.getInt32Ty(), B.getInt32Ty());
- inferLibFuncAttributes(M->getFunction("putchar"), *TLI);
+ StringRef PutCharName = TLI->getName(LibFunc_putchar);
+ Value *PutChar = M->getOrInsertFunction(PutCharName, B.getInt32Ty(), B.getInt32Ty());
+ inferLibFuncAttributes(M, PutCharName, *TLI);
CallInst *CI = B.CreateCall(PutChar,
B.CreateIntCast(Char,
B.getInt32Ty(),
/*isSigned*/true,
"chari"),
- "putchar");
+ PutCharName);
if (const Function *F = dyn_cast<Function>(PutChar->stripPointerCasts()))
CI->setCallingConv(F->getCallingConv());
@@ -997,10 +1007,11 @@ Value *llvm::emitPutS(Value *Str, IRBuil
return nullptr;
Module *M = B.GetInsertBlock()->getModule();
+ StringRef PutsName = TLI->getName(LibFunc_puts);
Value *PutS =
- M->getOrInsertFunction("puts", B.getInt32Ty(), B.getInt8PtrTy());
- inferLibFuncAttributes(M->getFunction("puts"), *TLI);
- CallInst *CI = B.CreateCall(PutS, castToCStr(Str, B), "puts");
+ M->getOrInsertFunction(PutsName, B.getInt32Ty(), B.getInt8PtrTy());
+ inferLibFuncAttributes(M, PutsName, *TLI);
+ CallInst *CI = B.CreateCall(PutS, castToCStr(Str, B), PutsName);
if (const Function *F = dyn_cast<Function>(PutS->stripPointerCasts()))
CI->setCallingConv(F->getCallingConv());
return CI;
@@ -1012,13 +1023,14 @@ Value *llvm::emitFPutC(Value *Char, Valu
return nullptr;
Module *M = B.GetInsertBlock()->getModule();
- Constant *F = M->getOrInsertFunction("fputc", B.getInt32Ty(), B.getInt32Ty(),
+ StringRef FPutcName = TLI->getName(LibFunc_fputc);
+ Constant *F = M->getOrInsertFunction(FPutcName, B.getInt32Ty(), B.getInt32Ty(),
File->getType());
if (File->getType()->isPointerTy())
- inferLibFuncAttributes(M->getFunction("fputc"), *TLI);
+ inferLibFuncAttributes(M, FPutcName, *TLI);
Char = B.CreateIntCast(Char, B.getInt32Ty(), /*isSigned*/true,
"chari");
- CallInst *CI = B.CreateCall(F, {Char, File}, "fputc");
+ CallInst *CI = B.CreateCall(F, {Char, File}, FPutcName);
if (const Function *Fn = dyn_cast<Function>(F->stripPointerCasts()))
CI->setCallingConv(Fn->getCallingConv());
@@ -1031,12 +1043,13 @@ Value *llvm::emitFPutCUnlocked(Value *Ch
return nullptr;
Module *M = B.GetInsertBlock()->getModule();
- Constant *F = M->getOrInsertFunction("fputc_unlocked", B.getInt32Ty(),
+ StringRef FPutcUnlockedName = TLI->getName(LibFunc_fputc_unlocked);
+ Constant *F = M->getOrInsertFunction(FPutcUnlockedName, B.getInt32Ty(),
B.getInt32Ty(), File->getType());
if (File->getType()->isPointerTy())
- inferLibFuncAttributes(M->getFunction("fputc_unlocked"), *TLI);
+ inferLibFuncAttributes(M, FPutcUnlockedName, *TLI);
Char = B.CreateIntCast(Char, B.getInt32Ty(), /*isSigned*/ true, "chari");
- CallInst *CI = B.CreateCall(F, {Char, File}, "fputc_unlocked");
+ CallInst *CI = B.CreateCall(F, {Char, File}, FPutcUnlockedName);
if (const Function *Fn = dyn_cast<Function>(F->stripPointerCasts()))
CI->setCallingConv(Fn->getCallingConv());
@@ -1053,8 +1066,8 @@ Value *llvm::emitFPutS(Value *Str, Value
Constant *F = M->getOrInsertFunction(
FPutsName, B.getInt32Ty(), B.getInt8PtrTy(), File->getType());
if (File->getType()->isPointerTy())
- inferLibFuncAttributes(M->getFunction(FPutsName), *TLI);
- CallInst *CI = B.CreateCall(F, {castToCStr(Str, B), File}, "fputs");
+ inferLibFuncAttributes(M, FPutsName, *TLI);
+ CallInst *CI = B.CreateCall(F, {castToCStr(Str, B), File}, FPutsName);
if (const Function *Fn = dyn_cast<Function>(F->stripPointerCasts()))
CI->setCallingConv(Fn->getCallingConv());
@@ -1071,8 +1084,8 @@ Value *llvm::emitFPutSUnlocked(Value *St
Constant *F = M->getOrInsertFunction(FPutsUnlockedName, B.getInt32Ty(),
B.getInt8PtrTy(), File->getType());
if (File->getType()->isPointerTy())
- inferLibFuncAttributes(M->getFunction(FPutsUnlockedName), *TLI);
- CallInst *CI = B.CreateCall(F, {castToCStr(Str, B), File}, "fputs_unlocked");
+ inferLibFuncAttributes(M, FPutsUnlockedName, *TLI);
+ CallInst *CI = B.CreateCall(F, {castToCStr(Str, B), File}, FPutsUnlockedName);
if (const Function *Fn = dyn_cast<Function>(F->stripPointerCasts()))
CI->setCallingConv(Fn->getCallingConv());
@@ -1092,7 +1105,7 @@ Value *llvm::emitFWrite(Value *Ptr, Valu
DL.getIntPtrType(Context), DL.getIntPtrType(Context), File->getType());
if (File->getType()->isPointerTy())
- inferLibFuncAttributes(M->getFunction(FWriteName), *TLI);
+ inferLibFuncAttributes(M, FWriteName, *TLI);
CallInst *CI =
B.CreateCall(F, {castToCStr(Ptr, B), Size,
ConstantInt::get(DL.getIntPtrType(Context), 1), File});
@@ -1108,11 +1121,12 @@ Value *llvm::emitMalloc(Value *Num, IRBu
return nullptr;
Module *M = B.GetInsertBlock()->getModule();
+ StringRef MallocName = TLI->getName(LibFunc_malloc);
LLVMContext &Context = B.GetInsertBlock()->getContext();
- Value *Malloc = M->getOrInsertFunction("malloc", B.getInt8PtrTy(),
+ Value *Malloc = M->getOrInsertFunction(MallocName, B.getInt8PtrTy(),
DL.getIntPtrType(Context));
- inferLibFuncAttributes(M->getFunction("malloc"), *TLI);
- CallInst *CI = B.CreateCall(Malloc, Num, "malloc");
+ inferLibFuncAttributes(M, MallocName, *TLI);
+ CallInst *CI = B.CreateCall(Malloc, Num, MallocName);
if (const Function *F = dyn_cast<Function>(Malloc->stripPointerCasts()))
CI->setCallingConv(F->getCallingConv());
@@ -1126,12 +1140,13 @@ Value *llvm::emitCalloc(Value *Num, Valu
return nullptr;
Module *M = B.GetInsertBlock()->getModule();
+ StringRef CallocName = TLI.getName(LibFunc_calloc);
const DataLayout &DL = M->getDataLayout();
IntegerType *PtrType = DL.getIntPtrType((B.GetInsertBlock()->getContext()));
- Value *Calloc = M->getOrInsertFunction("calloc", Attrs, B.getInt8PtrTy(),
+ Value *Calloc = M->getOrInsertFunction(CallocName, Attrs, B.getInt8PtrTy(),
PtrType, PtrType);
- inferLibFuncAttributes(M->getFunction("calloc"), TLI);
- CallInst *CI = B.CreateCall(Calloc, {Num, Size}, "calloc");
+ inferLibFuncAttributes(M, CallocName, TLI);
+ CallInst *CI = B.CreateCall(Calloc, {Num, Size}, CallocName);
if (const auto *F = dyn_cast<Function>(Calloc->stripPointerCasts()))
CI->setCallingConv(F->getCallingConv());
@@ -1153,7 +1168,7 @@ Value *llvm::emitFWriteUnlocked(Value *P
DL.getIntPtrType(Context), DL.getIntPtrType(Context), File->getType());
if (File->getType()->isPointerTy())
- inferLibFuncAttributes(M->getFunction(FWriteUnlockedName), *TLI);
+ inferLibFuncAttributes(M, FWriteUnlockedName, *TLI);
CallInst *CI = B.CreateCall(F, {castToCStr(Ptr, B), Size, N, File});
if (const Function *Fn = dyn_cast<Function>(F->stripPointerCasts()))
@@ -1167,11 +1182,12 @@ Value *llvm::emitFGetCUnlocked(Value *Fi
return nullptr;
Module *M = B.GetInsertBlock()->getModule();
+ StringRef FGetCUnlockedName = TLI->getName(LibFunc_fgetc_unlocked);
Constant *F =
- M->getOrInsertFunction("fgetc_unlocked", B.getInt32Ty(), File->getType());
+ M->getOrInsertFunction(FGetCUnlockedName, B.getInt32Ty(), File->getType());
if (File->getType()->isPointerTy())
- inferLibFuncAttributes(M->getFunction("fgetc_unlocked"), *TLI);
- CallInst *CI = B.CreateCall(F, File, "fgetc_unlocked");
+ inferLibFuncAttributes(M, FGetCUnlockedName, *TLI);
+ CallInst *CI = B.CreateCall(F, File, FGetCUnlockedName);
if (const Function *Fn = dyn_cast<Function>(F->stripPointerCasts()))
CI->setCallingConv(Fn->getCallingConv());
@@ -1184,12 +1200,13 @@ Value *llvm::emitFGetSUnlocked(Value *St
return nullptr;
Module *M = B.GetInsertBlock()->getModule();
+ StringRef FGetSUnlockedName = TLI->getName(LibFunc_fgets_unlocked);
Constant *F =
- M->getOrInsertFunction("fgets_unlocked", B.getInt8PtrTy(),
+ M->getOrInsertFunction(FGetSUnlockedName, B.getInt8PtrTy(),
B.getInt8PtrTy(), B.getInt32Ty(), File->getType());
- inferLibFuncAttributes(M->getFunction("fgets_unlocked"), *TLI);
+ inferLibFuncAttributes(M, FGetSUnlockedName, *TLI);
CallInst *CI =
- B.CreateCall(F, {castToCStr(Str, B), Size, File}, "fgets_unlocked");
+ B.CreateCall(F, {castToCStr(Str, B), Size, File}, FGetSUnlockedName);
if (const Function *Fn = dyn_cast<Function>(F->stripPointerCasts()))
CI->setCallingConv(Fn->getCallingConv());
@@ -1210,7 +1227,7 @@ Value *llvm::emitFReadUnlocked(Value *Pt
DL.getIntPtrType(Context), DL.getIntPtrType(Context), File->getType());
if (File->getType()->isPointerTy())
- inferLibFuncAttributes(M->getFunction(FReadUnlockedName), *TLI);
+ inferLibFuncAttributes(M, FReadUnlockedName, *TLI);
CallInst *CI = B.CreateCall(F, {castToCStr(Ptr, B), Size, N, File});
if (const Function *Fn = dyn_cast<Function>(F->stripPointerCasts()))
Modified: llvm/trunk/lib/Transforms/Utils/SimplifyLibCalls.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Utils/SimplifyLibCalls.cpp?rev=344645&r1=344644&r2=344645&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Utils/SimplifyLibCalls.cpp (original)
+++ llvm/trunk/lib/Transforms/Utils/SimplifyLibCalls.cpp Tue Oct 16 14:18:31 2018
@@ -145,7 +145,7 @@ static bool isLocallyOpenedFile(Value *F
Func != LibFunc_fopen)
return false;
- inferLibFuncAttributes(CI->getCalledFunction(), *TLI);
+ inferLibFuncAttributes(*CI->getCalledFunction(), *TLI);
if (PointerMayBeCaptured(File, true, true))
return false;
Modified: llvm/trunk/test/Transforms/InstCombine/pr39177.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/pr39177.ll?rev=344645&r1=344644&r2=344645&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/pr39177.ll (original)
+++ llvm/trunk/test/Transforms/InstCombine/pr39177.ll Tue Oct 16 14:18:31 2018
@@ -1,4 +1,5 @@
-; RUN: opt < %s -instcombine -S
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -instcombine -S | FileCheck %s
%struct._IO_FILE = type { i32, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, %struct._IO_marker*, %struct._IO_FILE*, i32, i32, i64, i16, i8, [1 x i8], i8*, i64, i8*, i8*, i8*, i8*, i64, i32, [20 x i8] }
%struct._IO_marker = type { %struct._IO_marker*, %struct._IO_FILE*, i32 }
@@ -9,6 +10,10 @@
@fwrite = alias i64 (i8*, i64, i64, %struct._IO_FILE*), i64 (i8*, i64, i64, %struct._IO_FILE*)* @__fwrite_alias
define i64 @__fwrite_alias(i8* %ptr, i64 %size, i64 %n, %struct._IO_FILE* %s) {
+; CHECK-LABEL: @__fwrite_alias(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: ret i64 0
+;
entry:
%ptr.addr = alloca i8*, align 8
%size.addr = alloca i64, align 8
@@ -22,6 +27,12 @@ entry:
}
define void @foo() {
+; CHECK-LABEL: @foo(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[TMP0:%.*]] = load %struct._IO_FILE*, %struct._IO_FILE** @stderr, align 8
+; CHECK-NEXT: [[TMP1:%.*]] = call i64 @__fwrite_alias(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i64 7, i64 1, %struct._IO_FILE* [[TMP0]])
+; CHECK-NEXT: ret void
+;
entry:
%retval = alloca i32, align 4
store i32 0, i32* %retval, align 4
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