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[AArch64] Disable useAA for Cortex-A57.

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Using AA during CodeGen is very useful for in-order cores. It is less useful for ooo cores. Also I find
enabling useAA for Cortex-A57 may generate worse code for some test cases. If useAA in codegen is improved 
and benefical for ooo cores, we can enable it again.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222333 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Hao Liu 2014-11-19 06:48:56 +00:00
parent 8db9fbf7cd
commit 0e8675a621
1 changed files with 1 additions and 1 deletions
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lib/Target/AArch64/AArch64Subtarget.h
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@ -115,7 +115,7 @@ public:
bool isCortexA57() const { return CPUString == "cortex-a57"; }
bool isCortexA53() const { return CPUString == "cortex-a53"; }
bool useAA() const override { return isCortexA53() || isCortexA57(); }
bool useAA() const override { return isCortexA53(); }
/// getMaxInlineSizeThreshold - Returns the maximum memset / memcpy size
/// that still makes it profitable to inline the call.