[PATCH] D22778: Add Loop Sink pass to reverse the LICM based of basic block frequency.

[Daniel Berlin via llvm-commits]

This should be pretty easy:

for loop:
  if (g) {
    if (a) {
      c = b;
  }
   use c
  }
 }


(there will be Phi nodes, obviously, to make this work).


On Mon, Oct 17, 2016 at 11:49 AM, David Li <davidxl at google.com> wrote:

> davidxl added a comment.
>
> Example of parent BB being colder than the use BB?
>
>
> https://reviews.llvm.org/D22778
>
>
>
>
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