[PATCH] D19087: [x86, ppc] prefer comparisons against zero for and+cmp sequences

[Hal Finkel via llvm-commits]

hfinkel added a comment.

This certainly a good pattern to catch, but I'm not sure that CGP is the right place for this. We generally have things in CGP to work-around the fact that SDAG/ISel is basic-block local. This kind of thing seems much more natural as a something that should be in DAGCombine.


http://reviews.llvm.org/D19087