[PATCH] D32277: Replace slow LEA instructions in X86
Serguei Katkov via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Apr 20 20:54:44 PDT 2017
skatkov added a comment.
Interesting... it would be nice to know why :)
Anyway I still believe that some negative tests should also be added here. For example for the sequence
cmp
lea
jb
lea cannot be converted to add due to add implicitly kills the eflags and defines it as well while lea does not do it.
https://reviews.llvm.org/D32277
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