[PATCH] D18576: Initial implementation of optimization bisect
Paul Robinson via llvm-commits
llvm-commits at lists.llvm.org
Wed Mar 30 17:57:49 PDT 2016
probinson added a comment.
In http://reviews.llvm.org/D18576#386451, @mzolotukhin wrote:
> I don't think optnone-aware passes and the passes we might want to bisect are the same. Even with optnone we probably want to run some very trivial optimizations (e.g. ConstantProp), and I think bisection should cover those too.
optnone tries to be as much like -O0 as it can, and I'd think that after you get to the end of the bisection range you'd want to be as much like -O0 as you can. FWIW I'm not seeing ConstantProp run at -O0.
Repository:
rL LLVM
http://reviews.llvm.org/D18576
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