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Make sure ... arguments are casted to sbyte* where needed. 

llvm-svn: 22162
This commit is contained in:
Reid Spencer 2005-05-21 00:39:30 +00:00
parent 895af9ef24
commit 45bb4afc79
1 changed files with 12 additions and 13 deletions
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25
llvm/lib/Transforms/IPO/SimplifyLibCalls.cpp
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@ -1237,6 +1237,16 @@ public:
}
} PowOptimizer;
/// CastToCStr - Return V if it is an sbyte*, otherwise cast it to sbyte*,
/// inserting the cast before IP, and return the cast.
/// @brief Cast a value to a "C" string.
static Value *CastToCStr(Value *V, Instruction &IP) {
const Type *SBPTy = PointerType::get(Type::SByteTy);
if (V->getType() != SBPTy)
return new CastInst(V, SBPTy, V->getName(), &IP);
return V;
}
/// This LibCallOptimization will simplify calls to the "fprintf" library
/// function. It looks for cases where the result of fprintf is not used and the
/// operation can be reduced to something simpler.
@ -1292,7 +1302,7 @@ public:
return false;
}
// fprintf(file,fmt) -> fwrite(fmt,strlen(fmt),1file)
// fprintf(file,fmt) -> fwrite(fmt,strlen(fmt),file)
const Type* FILEptr_type = ci->getOperand(1)->getType();
Function* fwrite_func = SLC.get_fwrite(FILEptr_type);
if (!fwrite_func)
@ -1335,7 +1345,7 @@ public:
if (!fwrite_func)
return false;
std::vector<Value*> args;
args.push_back(ci->getOperand(3));
args.push_back(CastToCStr(ci->getOperand(3), *ci));
args.push_back(ConstantUInt::get(SLC.getIntPtrType(),len));
args.push_back(ConstantUInt::get(SLC.getIntPtrType(),1));
args.push_back(ci->getOperand(1));
@ -1366,17 +1376,6 @@ public:
}
} FPrintFOptimizer;
/// CastToCStr - Return V if it is an sbyte*, otherwise cast it to sbyte*,
/// inserting the cast before IP, and return the cast.
/// @brief Cast a value to a "C" string.
static Value *CastToCStr(Value *V, Instruction &IP) {
const Type *SBPTy = PointerType::get(Type::SByteTy);
if (V->getType() != SBPTy)
return new CastInst(V, SBPTy, V->getName(), &IP);
return V;
}
/// This LibCallOptimization will simplify calls to the "sprintf" library
/// function. It looks for cases where the result of sprintf is not used and the
/// operation can be reduced to something simpler.