revert an accidental commit, this fixes the regression on test/CodeGen/X86/isel-sink.ll

llvm-svn: 59976
This commit is contained in:
Chris Lattner 2008-11-24 19:40:34 +00:00
parent e5bf93e61f
commit 561b0adda9

View File

@ -208,7 +208,7 @@ void CodeGenPrepare::EliminateMostlyEmptyBlock(BasicBlock *BB) {
while (PHINode *PN = dyn_cast<PHINode>(DestBB->begin())) {
Value *NewVal = PN->getIncomingValue(0);
// Replace self referencing PHI with undef, it must be dead.
if (NewVal == PN) NewVal = UndefValue::get(PN->getType());
//if (NewVal == PN) NewVal = UndefValue::get(PN->getType());
PN->replaceAllUsesWith(NewVal);
PN->eraseFromParent();
}
@ -572,9 +572,6 @@ static bool FindMaximalLegalAddressingMode(Value *Addr, const Type *AccessTy,
if (Instruction *I = dyn_cast_or_null<Instruction>(AddrInst))
AddrModeInsts.push_back(I);
if (AddrInst && !AddrInst->hasOneUse())
;
else
switch (Opcode) {
case Instruction::PtrToInt:
// PtrToInt is always a noop, as we know that the int type is pointer sized.