[PATCH] D14496: X86: More efficient codegen for 64-bit compare-and-branch

[Michael Kuperstein via llvm-commits]

mkuper added a comment.

ICC doesn't do this for equality comparisons.
In fact, it produces code that's very close to what we currently have in clang (before your patch).

As to eax/edx - I can't see a good reason for that. Doesn't necessarily mean there isn't one, of course, just that I can't see one...


http://reviews.llvm.org/D14496