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Create constant expression casts instead of constant instructions if possible

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5968 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-04-28 01:25:38 +00:00
parent 1fd95afab3
commit 95549281ec
1 changed files with 12 additions and 2 deletions
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14
lib/Transforms/LevelRaise.cpp
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@ -504,8 +504,18 @@ bool RPR::PeepholeOptimize(BasicBlock *BB, BasicBlock::iterator &BI) {
PointerType *NewPFunTy = PointerType::get(NewFT);
// Create a new cast, inserting it right before the function call...
CastInst *NewCast = new CastInst(CI->getCalledValue(), NewPFunTy,
CI->getCalledValue()->getName()+"_c",CI);
Value *NewCast;
Constant *ConstantCallSrc = 0;
if (Constant *CS = dyn_cast<Constant>(CI->getCalledValue()))
ConstantCallSrc = CS;
else if (GlobalValue *GV = dyn_cast<GlobalValue>(CI->getCalledValue()))
ConstantCallSrc = ConstantPointerRef::get(GV);
if (ConstantCallSrc)
NewCast = ConstantExpr::getCast(ConstantCallSrc, NewPFunTy);
else
NewCast = new CastInst(CI->getCalledValue(), NewPFunTy,
CI->getCalledValue()->getName()+"_c",CI);
// Create a new call instruction...
CallInst *NewCall = new CallInst(NewCast,