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| author | Hao Liu <Hao.Liu@arm.com> | 2014-11-19 06:48:56 +0000 |
|---|---|---|
| committer | Hao Liu <Hao.Liu@arm.com> | 2014-11-19 06:48:56 +0000 |
| commit | 2aa06a989dfef2950ab45da80dd9c1adadd9f9a2 (patch) | |
| tree | 9f673d7d862fc8e060b156446c63465cec1c3659 /llvm/lib | |
| parent | dc23dad2b7cd83f42fd9617cd9e9d73cbcf66957 (diff) | |
| download | bcm5719-llvm-2aa06a989dfef2950ab45da80dd9c1adadd9f9a2.tar.gz bcm5719-llvm-2aa06a989dfef2950ab45da80dd9c1adadd9f9a2.zip | |
[AArch64] Disable useAA for Cortex-A57.
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.
llvm-svn: 222333
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64Subtarget.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64Subtarget.h b/llvm/lib/Target/AArch64/AArch64Subtarget.h index 06bd3698c6a..e2740f137c2 100644 --- a/llvm/lib/Target/AArch64/AArch64Subtarget.h +++ b/llvm/lib/Target/AArch64/AArch64Subtarget.h @@ -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. |
