| commit | 4b62afca64a3f18cd57a3b3247330effd4b38098 | [log] [tgz] |
|---|---|---|
| author | Shengchen Kan <shengchen.kan@intel.com> | Sat May 18 19:50:16 2024 +0800 |
| committer | GitHub <noreply@github.com> | Sat May 18 19:50:16 2024 +0800 |
| tree | 441a9a489ccc04a9acd8df79ab05c5abcd69730d | |
| parent | 778826f0b8fb9f1a595ce8ab23faad6daa9466f5 [diff] |
[X86][CodeGen] Support flags copy lowering for CCMP/CTEST (#91849) ``` %1:gr64 = COPY $eflags OP1 may update eflags $eflags = COPY %1 OP2 may use eflags ``` To use eflags as input at 4th instruction, we need to use SETcc to preserve the eflags before 2, and update the source condition of OP2 according to value in GPR %1. In this patch, we support CCMP/CTEST as OP2.
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