[PATCH] D40334: [X86] Break false dependencies for POPCNT, LZCNT, TZCNT

Marina Yatsina via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Nov 29 23:21:56 PST 2017


myatsina added a comment.

In https://reviews.llvm.org/D40334#939939, @craig.topper wrote:

> What are you planning to do with 16-bit instructions? Like I said XOR16 is insufficient to break a dependency.


I'm leading towards adding  a 32bit XOR. Do you agree with that solution?



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Comment at: test/CodeGen/X86/bug3389.ll:87
+}
\ No newline at end of file

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Will fix this in the commit


https://reviews.llvm.org/D40334





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