[PATCH] D13297: [CGP] transform select instructions into branches and sink expensive operands

Sanjay Patel via llvm-commits llvm-commits at lists.llvm.org
Thu Oct 1 14:37:21 PDT 2015


spatel added a comment.

F896811: simplifycfg_expensive - perf.csv <http://reviews.llvm.org/F896811>

This data comes from the same system and has the same baseline as before (r248957) but reverts r248439, so if there are expensive ops (div/rem) that can be speculatively executed and folded into selects, this data should show the perf effect.

But again, I don't see any differences.


http://reviews.llvm.org/D13297





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