From 2aa06a989dfef2950ab45da80dd9c1adadd9f9a2 Mon Sep 17 00:00:00 2001 From: Hao Liu Date: Wed, 19 Nov 2014 06:48:56 +0000 Subject: [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 --- llvm/lib/Target/AArch64/AArch64Subtarget.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'llvm/lib') 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. -- cgit v1.2.3