[PATCH] D18576: Initial implementation of optimization bisect

[Paul Robinson via llvm-commits]

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