tree e4a818fc59ba53ae518e10e66b62b482e7758bde
parent 91cb8f5d3202870602c6bef807bc4c7ae8a32790
author Simon Pilgrim <llvm-dev@redking.me.uk> 1738660477 +0000
committer GitHub <noreply@github.com> 1738660477 +0000
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[X86] EmitCmp - use existing XOR node to check for equality (#125506)

Normally, we use the result of the SUB flag for scalar comparison as its more compatible with CMP, but if we're testing for equality and already have a XOR we can reuse that instead.

Fixes #6146