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Add support for custom names for library functions in TargetLibraryInfo. Add a custom name for fwrite and fputs on x86-32 OSX. Make SimplifyLibCalls honor the custom

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names for fwrite and fputs.

Fixes <rdar://problem/9815881>.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144876 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Friedman
2011-11-17 01:27:36 +00:00
parent d5889d8c7f
commit 9d434dbff3
6 changed files with 134 additions and 21 deletions
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lib/Transforms/Utils/BuildLibCalls.cpp
+12 -6
View File
@@ -20,6 +20,9 @@
#include "llvm/Module.h"
#include "llvm/Support/IRBuilder.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetLibraryInfo.h"
#include "llvm/LLVMContext.h"
#include "llvm/Intrinsics.h"
#include "llvm/ADT/SmallString.h"
using namespace llvm;
@@ -297,20 +300,21 @@ void llvm::EmitFPutC(Value *Char, Value *File, IRBuilder<> &B,
/// EmitFPutS - Emit a call to the puts function. Str is required to be a
/// pointer and File is a pointer to FILE.
void llvm::EmitFPutS(Value *Str, Value *File, IRBuilder<> &B,
const TargetData *TD) {
const TargetData *TD, const TargetLibraryInfo *TLI) {
Module *M = B.GetInsertBlock()->getParent()->getParent();
AttributeWithIndex AWI[3];
AWI[0] = AttributeWithIndex::get(1, Attribute::NoCapture);
AWI[1] = AttributeWithIndex::get(2, Attribute::NoCapture);
AWI[2] = AttributeWithIndex::get(~0u, Attribute::NoUnwind);
StringRef FPutsName = TLI->getName(LibFunc::fputs);
Constant *F;
if (File->getType()->isPointerTy())
F = M->getOrInsertFunction("fputs", AttrListPtr::get(AWI, 3),
F = M->getOrInsertFunction(FPutsName, AttrListPtr::get(AWI, 3),
B.getInt32Ty(),
B.getInt8PtrTy(),
File->getType(), NULL);
else
F = M->getOrInsertFunction("fputs", B.getInt32Ty(),
F = M->getOrInsertFunction(FPutsName, B.getInt32Ty(),
B.getInt8PtrTy(),
File->getType(), NULL);
CallInst *CI = B.CreateCall2(F, CastToCStr(Str, B), File, "fputs");
@@ -322,23 +326,25 @@ void llvm::EmitFPutS(Value *Str, Value *File, IRBuilder<> &B,
/// EmitFWrite - Emit a call to the fwrite function. This assumes that Ptr is
/// a pointer, Size is an 'intptr_t', and File is a pointer to FILE.
void llvm::EmitFWrite(Value *Ptr, Value *Size, Value *File,
IRBuilder<> &B, const TargetData *TD) {
IRBuilder<> &B, const TargetData *TD,
const TargetLibraryInfo *TLI) {
Module *M = B.GetInsertBlock()->getParent()->getParent();
AttributeWithIndex AWI[3];
AWI[0] = AttributeWithIndex::get(1, Attribute::NoCapture);
AWI[1] = AttributeWithIndex::get(4, Attribute::NoCapture);
AWI[2] = AttributeWithIndex::get(~0u, Attribute::NoUnwind);
LLVMContext &Context = B.GetInsertBlock()->getContext();
StringRef FWriteName = TLI->getName(LibFunc::fwrite);
Constant *F;
if (File->getType()->isPointerTy())
F = M->getOrInsertFunction("fwrite", AttrListPtr::get(AWI, 3),
F = M->getOrInsertFunction(FWriteName, AttrListPtr::get(AWI, 3),
TD->getIntPtrType(Context),
B.getInt8PtrTy(),
TD->getIntPtrType(Context),
TD->getIntPtrType(Context),
File->getType(), NULL);
else
F = M->getOrInsertFunction("fwrite", TD->getIntPtrType(Context),
F = M->getOrInsertFunction(FWriteName, TD->getIntPtrType(Context),
B.getInt8PtrTy(),
TD->getIntPtrType(Context),
TD->getIntPtrType(Context),