[all-commits] [llvm/llvm-project] 40222d: [X86] Fix the vnni machine combine issue.
Luo, Yuanke via All-commits
all-commits at lists.llvm.org
Fri Apr 28 22:51:36 PDT 2023
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: 40222ddcf8f54fe523b2d14ab7005ebf412330f1
https://github.com/llvm/llvm-project/commit/40222ddcf8f54fe523b2d14ab7005ebf412330f1
Author: Luo, Yuanke <yuanke.luo at intel.com>
Date: 2023-04-29 (Sat, 29 Apr 2023)
Changed paths:
M llvm/lib/CodeGen/MachineCombiner.cpp
M llvm/lib/Target/X86/X86InstrInfo.cpp
M llvm/test/CodeGen/X86/avx512vnni-combine.ll
M llvm/test/CodeGen/X86/avxvnni-combine.ll
Log Message:
-----------
[X86] Fix the vnni machine combine issue.
The previous patch (D148980) didn't set the InstrIdxForVirtReg correctly
in genAlternativeDpCodeSequence(). It causes vnni lit test failure when
LLVM_ENABLE_EXPENSIVE_CHECKS is on.
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