[LLVMdev] [Patch][Review Requested][Compilation Time] Avoid frequent copy of elements in LoopStrengthReduce
criswell at illinois.edu
Tue Jan 29 14:11:44 PST 2013
On 1/29/13 2:59 PM, Murali, Sriram wrote:
> This patch aims to improve compile time performance by increasing the
> SCEV vector size in LoopStrengthReduce. It is observed that the
> BaseRegs vector size is 4 in most cases, and elements are frequently
> copied when it is initialized as SmallVector<const SCEV *, 2> BaseRegs.
> Our benchmark results show that the compilation time performance
> improved by ~0.5%.
Just an FYI that I think patches are supposed to be sent to llvm-commits.
-- John T.
> Patch by Wan Xiaofei.
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu
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