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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2025-02-04 09:14:37 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-02-04 09:14:37 +0000 |
| commit | 4be35fd9085b9bb0330c8adb95b47842baa3aaa9 (patch) | |
| tree | e4a818fc59ba53ae518e10e66b62b482e7758bde /llvm/lib/CodeGen/MachineCopyPropagation.cpp | |
| parent | 91cb8f5d3202870602c6bef807bc4c7ae8a32790 (diff) | |
| download | llvm-4be35fd9085b9bb0330c8adb95b47842baa3aaa9.zip llvm-4be35fd9085b9bb0330c8adb95b47842baa3aaa9.tar.gz llvm-4be35fd9085b9bb0330c8adb95b47842baa3aaa9.tar.bz2 | |
[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
Diffstat (limited to 'llvm/lib/CodeGen/MachineCopyPropagation.cpp')
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