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-rw-r--r--llvm/lib/Transforms/Utils/BuildLibCalls.cpp167
1 files changed, 57 insertions, 110 deletions
diff --git a/llvm/lib/Transforms/Utils/BuildLibCalls.cpp b/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
index fe6c602ecd4..a44a8946add 100644
--- a/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
+++ b/llvm/lib/Transforms/Utils/BuildLibCalls.cpp
@@ -789,100 +789,76 @@ Value *llvm::castToCStr(Value *V, IRBuilder<> &B) {
return B.CreateBitCast(V, B.getInt8PtrTy(AS), "cstr");
}
-Value *llvm::emitStrLen(Value *Ptr, IRBuilder<> &B, const DataLayout &DL,
- const TargetLibraryInfo *TLI) {
- if (!TLI->has(LibFunc_strlen))
+static Value *emitLibCall(LibFunc TheLibFunc, Type *ReturnType,
+ ArrayRef<Type *> ParamTypes,
+ ArrayRef<Value *> Operands, IRBuilder<> &B,
+ const TargetLibraryInfo *TLI,
+ bool IsVaArgs = false) {
+ if (!TLI->has(TheLibFunc))
return nullptr;
Module *M = B.GetInsertBlock()->getModule();
- StringRef StrlenName = TLI->getName(LibFunc_strlen);
- LLVMContext &Context = B.GetInsertBlock()->getContext();
- FunctionCallee StrLen = M->getOrInsertFunction(
- StrlenName, DL.getIntPtrType(Context), B.getInt8PtrTy());
- inferLibFuncAttributes(M, StrlenName, *TLI);
- CallInst *CI = B.CreateCall(StrLen, castToCStr(Ptr, B), StrlenName);
+ StringRef FuncName = TLI->getName(TheLibFunc);
+ FunctionType *FuncType = FunctionType::get(ReturnType, ParamTypes, IsVaArgs);
+ FunctionCallee Callee = M->getOrInsertFunction(FuncName, FuncType);
+ inferLibFuncAttributes(M, FuncName, *TLI);
+ CallInst *CI = B.CreateCall(Callee, Operands, FuncName);
if (const Function *F =
- dyn_cast<Function>(StrLen.getCallee()->stripPointerCasts()))
+ dyn_cast<Function>(Callee.getCallee()->stripPointerCasts()))
CI->setCallingConv(F->getCallingConv());
-
return CI;
}
-Value *llvm::emitStrChr(Value *Ptr, char C, IRBuilder<> &B,
+Value *llvm::emitStrLen(Value *Ptr, IRBuilder<> &B, const DataLayout &DL,
const TargetLibraryInfo *TLI) {
- if (!TLI->has(LibFunc_strchr))
- return nullptr;
+ LLVMContext &Context = B.GetInsertBlock()->getContext();
+ return emitLibCall(LibFunc_strlen, DL.getIntPtrType(Context),
+ B.getInt8PtrTy(), castToCStr(Ptr, B), B, TLI);
+}
- Module *M = B.GetInsertBlock()->getModule();
- StringRef StrChrName = TLI->getName(LibFunc_strchr);
+Value *llvm::emitStrChr(Value *Ptr, char C, IRBuilder<> &B,
+ const TargetLibraryInfo *TLI) {
Type *I8Ptr = B.getInt8PtrTy();
Type *I32Ty = B.getInt32Ty();
- FunctionCallee StrChr =
- M->getOrInsertFunction(StrChrName, I8Ptr, I8Ptr, I32Ty);
- inferLibFuncAttributes(M, StrChrName, *TLI);
- CallInst *CI = B.CreateCall(
- StrChr, {castToCStr(Ptr, B), ConstantInt::get(I32Ty, C)}, StrChrName);
- if (const Function *F =
- dyn_cast<Function>(StrChr.getCallee()->stripPointerCasts()))
- CI->setCallingConv(F->getCallingConv());
- return CI;
+ return emitLibCall(LibFunc_strchr, I8Ptr, {I8Ptr, I32Ty},
+ {castToCStr(Ptr, B), ConstantInt::get(I32Ty, C)}, B, TLI);
}
Value *llvm::emitStrNCmp(Value *Ptr1, Value *Ptr2, Value *Len, IRBuilder<> &B,
const DataLayout &DL, const TargetLibraryInfo *TLI) {
- if (!TLI->has(LibFunc_strncmp))
- return nullptr;
-
- Module *M = B.GetInsertBlock()->getModule();
- StringRef StrNCmpName = TLI->getName(LibFunc_strncmp);
LLVMContext &Context = B.GetInsertBlock()->getContext();
- FunctionCallee StrNCmp =
- M->getOrInsertFunction(StrNCmpName, B.getInt32Ty(), B.getInt8PtrTy(),
- B.getInt8PtrTy(), DL.getIntPtrType(Context));
- inferLibFuncAttributes(M, StrNCmpName, *TLI);
- CallInst *CI = B.CreateCall(
- StrNCmp, {castToCStr(Ptr1, B), castToCStr(Ptr2, B), Len}, StrNCmpName);
-
- if (const Function *F =
- dyn_cast<Function>(StrNCmp.getCallee()->stripPointerCasts()))
- CI->setCallingConv(F->getCallingConv());
-
- return CI;
+ return emitLibCall(
+ LibFunc_strncmp, B.getInt32Ty(),
+ {B.getInt8PtrTy(), B.getInt8PtrTy(), DL.getIntPtrType(Context)},
+ {castToCStr(Ptr1, B), castToCStr(Ptr2, B), Len}, B, TLI);
}
Value *llvm::emitStrCpy(Value *Dst, Value *Src, IRBuilder<> &B,
- const TargetLibraryInfo *TLI, StringRef Name) {
- if (!TLI->has(LibFunc_strcpy))
- return nullptr;
+ const TargetLibraryInfo *TLI) {
+ Type *I8Ptr = B.getInt8PtrTy();
+ return emitLibCall(LibFunc_strcpy, I8Ptr, {I8Ptr, I8Ptr},
+ {castToCStr(Dst, B), castToCStr(Src, B)}, B, TLI);
+}
- Module *M = B.GetInsertBlock()->getModule();
+Value *llvm::emitStpCpy(Value *Dst, Value *Src, IRBuilder<> &B,
+ const TargetLibraryInfo *TLI) {
Type *I8Ptr = B.getInt8PtrTy();
- FunctionCallee StrCpy = M->getOrInsertFunction(Name, I8Ptr, I8Ptr, I8Ptr);
- inferLibFuncAttributes(M, Name, *TLI);
- CallInst *CI =
- B.CreateCall(StrCpy, {castToCStr(Dst, B), castToCStr(Src, B)}, Name);
- if (const Function *F =
- dyn_cast<Function>(StrCpy.getCallee()->stripPointerCasts()))
- CI->setCallingConv(F->getCallingConv());
- return CI;
+ return emitLibCall(LibFunc_stpcpy, I8Ptr, {I8Ptr, I8Ptr},
+ {castToCStr(Dst, B), castToCStr(Src, B)}, B, TLI);
}
Value *llvm::emitStrNCpy(Value *Dst, Value *Src, Value *Len, IRBuilder<> &B,
- const TargetLibraryInfo *TLI, StringRef Name) {
- if (!TLI->has(LibFunc_strncpy))
- return nullptr;
+ const TargetLibraryInfo *TLI) {
+ Type *I8Ptr = B.getInt8PtrTy();
+ return emitLibCall(LibFunc_strncpy, I8Ptr, {I8Ptr, I8Ptr, Len->getType()},
+ {castToCStr(Dst, B), castToCStr(Src, B), Len}, B, TLI);
+}
- Module *M = B.GetInsertBlock()->getModule();
+Value *llvm::emitStpNCpy(Value *Dst, Value *Src, Value *Len, IRBuilder<> &B,
+ const TargetLibraryInfo *TLI) {
Type *I8Ptr = B.getInt8PtrTy();
- FunctionCallee StrNCpy =
- M->getOrInsertFunction(Name, I8Ptr, I8Ptr, I8Ptr, Len->getType());
- inferLibFuncAttributes(M, Name, *TLI);
- CallInst *CI = B.CreateCall(
- StrNCpy, {castToCStr(Dst, B), castToCStr(Src, B), Len}, Name);
- if (const Function *F =
- dyn_cast<Function>(StrNCpy.getCallee()->stripPointerCasts()))
- CI->setCallingConv(F->getCallingConv());
- return CI;
+ return emitLibCall(LibFunc_stpncpy, I8Ptr, {I8Ptr, I8Ptr, Len->getType()},
+ {castToCStr(Dst, B), castToCStr(Src, B), Len}, B, TLI);
}
Value *llvm::emitMemCpyChk(Value *Dst, Value *Src, Value *Len, Value *ObjSize,
@@ -911,58 +887,29 @@ Value *llvm::emitMemCpyChk(Value *Dst, Value *Src, Value *Len, Value *ObjSize,
Value *llvm::emitMemChr(Value *Ptr, Value *Val, Value *Len, IRBuilder<> &B,
const DataLayout &DL, const TargetLibraryInfo *TLI) {
- if (!TLI->has(LibFunc_memchr))
- return nullptr;
-
- Module *M = B.GetInsertBlock()->getModule();
- StringRef MemChrName = TLI->getName(LibFunc_memchr);
- LLVMContext &Context = B.GetInsertBlock()->getContext();
- FunctionCallee MemChr =
- M->getOrInsertFunction(MemChrName, B.getInt8PtrTy(), B.getInt8PtrTy(),
- B.getInt32Ty(), DL.getIntPtrType(Context));
- inferLibFuncAttributes(M, MemChrName, *TLI);
- CallInst *CI = B.CreateCall(MemChr, {castToCStr(Ptr, B), Val, Len}, MemChrName);
-
- if (const Function *F =
- dyn_cast<Function>(MemChr.getCallee()->stripPointerCasts()))
- CI->setCallingConv(F->getCallingConv());
-
- return CI;
-}
-
-// Common code for memcmp() and bcmp(), which have the exact same properties,
-// just a slight difference in semantics.
-static Value *emitMemCmpOrBcmp(llvm::LibFunc libfunc, Value *Ptr1, Value *Ptr2,
- Value *Len, IRBuilder<> &B, const DataLayout &DL,
- const TargetLibraryInfo *TLI) {
- if (!TLI->has(libfunc))
- return nullptr;
-
- Module *M = B.GetInsertBlock()->getModule();
- StringRef CmpFnName = TLI->getName(libfunc);
LLVMContext &Context = B.GetInsertBlock()->getContext();
- FunctionCallee CmpFn =
- M->getOrInsertFunction(CmpFnName, B.getInt32Ty(), B.getInt8PtrTy(),
- B.getInt8PtrTy(), DL.getIntPtrType(Context));
- inferLibFuncAttributes(M, CmpFnName, *TLI);
- CallInst *CI = B.CreateCall(
- CmpFn, {castToCStr(Ptr1, B), castToCStr(Ptr2, B), Len}, CmpFnName);
-
- if (const Function *F =
- dyn_cast<Function>(CmpFn.getCallee()->stripPointerCasts()))
- CI->setCallingConv(F->getCallingConv());
-
- return CI;
+ return emitLibCall(
+ LibFunc_memchr, B.getInt8PtrTy(),
+ {B.getInt8PtrTy(), B.getInt32Ty(), DL.getIntPtrType(Context)},
+ {castToCStr(Ptr, B), Val, Len}, B, TLI);
}
Value *llvm::emitMemCmp(Value *Ptr1, Value *Ptr2, Value *Len, IRBuilder<> &B,
const DataLayout &DL, const TargetLibraryInfo *TLI) {
- return emitMemCmpOrBcmp(LibFunc_memcmp, Ptr1, Ptr2, Len, B, DL, TLI);
+ LLVMContext &Context = B.GetInsertBlock()->getContext();
+ return emitLibCall(
+ LibFunc_memcmp, B.getInt32Ty(),
+ {B.getInt8PtrTy(), B.getInt8PtrTy(), DL.getIntPtrType(Context)},
+ {castToCStr(Ptr1, B), castToCStr(Ptr2, B), Len}, B, TLI);
}
Value *llvm::emitBCmp(Value *Ptr1, Value *Ptr2, Value *Len, IRBuilder<> &B,
const DataLayout &DL, const TargetLibraryInfo *TLI) {
- return emitMemCmpOrBcmp(LibFunc_bcmp, Ptr1, Ptr2, Len, B, DL, TLI);
+ LLVMContext &Context = B.GetInsertBlock()->getContext();
+ return emitLibCall(
+ LibFunc_bcmp, B.getInt32Ty(),
+ {B.getInt8PtrTy(), B.getInt8PtrTy(), DL.getIntPtrType(Context)},
+ {castToCStr(Ptr1, B), castToCStr(Ptr2, B), Len}, B, TLI);
}
/// Append a suffix to the function name according to the type of 'Op'.
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