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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2023-08-31 13:13:52 +0100 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2023-08-31 13:14:01 +0100 |
| commit | 239ab16ec1213749a2228368298519b377d336bb (patch) | |
| tree | 6802fa05a60242490407d257ac41ff3a0b6ecf53 /clang/lib/CodeGen/CodeGenModule.h | |
| parent | e8af24736ada1ecc2495ada73225370be8a551a5 (diff) | |
| download | llvm-239ab16ec1213749a2228368298519b377d336bb.zip llvm-239ab16ec1213749a2228368298519b377d336bb.tar.gz llvm-239ab16ec1213749a2228368298519b377d336bb.tar.bz2 | |
[X86] combineCMP - attempt to simplify KSHIFTR mask element extractions when just comparing against zero
We can just bitcast the pre-shifted mask as an integer and use TEST/BT directly.
This can be extended further to better handle sub-i8 mask cases, but just getting rid of KSHIFTR nodes makes a notable difference.
Diffstat (limited to 'clang/lib/CodeGen/CodeGenModule.h')
0 files changed, 0 insertions, 0 deletions