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add a FIXME for a CPU model check that should have an attribute instead

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llvm-svn: 248746
This commit is contained in:
Sanjay Patel 2015-09-28 22:00:24 +00:00
parent 909510b3d9
commit 69ef985eae
1 changed files with 2 additions and 1 deletions
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lib/Target/X86/X86ISelLowering.cpp
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@ -1785,7 +1785,8 @@ X86TargetLowering::X86TargetLowering(const X86TargetMachine &TM,
MaxStoresPerMemmoveOptSize = 4;
setPrefLoopAlignment(4); // 2^4 bytes.
// Predictable cmov don't hurt on atom because it's in-order.
// A predictable cmov does not hurt on an in-order CPU.
// FIXME: Use a CPU attribute to trigger this, not a CPU model.
PredictableSelectIsExpensive = !Subtarget->isAtom();
EnableExtLdPromotion = true;
setPrefFunctionAlignment(4); // 2^4 bytes.