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revert an accidental commit, this fixes the regression on test/CodeGen/X86/isel-sink.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59976 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -208,7 +208,7 @@ void CodeGenPrepare::EliminateMostlyEmptyBlock(BasicBlock *BB) {
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while (PHINode *PN = dyn_cast<PHINode>(DestBB->begin())) {
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Value *NewVal = PN->getIncomingValue(0);
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// Replace self referencing PHI with undef, it must be dead.
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if (NewVal == PN) NewVal = UndefValue::get(PN->getType());
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//if (NewVal == PN) NewVal = UndefValue::get(PN->getType());
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PN->replaceAllUsesWith(NewVal);
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PN->eraseFromParent();
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}
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@ -572,9 +572,6 @@ static bool FindMaximalLegalAddressingMode(Value *Addr, const Type *AccessTy,
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if (Instruction *I = dyn_cast_or_null<Instruction>(AddrInst))
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AddrModeInsts.push_back(I);
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if (AddrInst && !AddrInst->hasOneUse())
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;
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else
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switch (Opcode) {
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case Instruction::PtrToInt:
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// PtrToInt is always a noop, as we know that the int type is pointer sized.
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