[PATCH] D135415: [GlobalISel] Make comparison matcher commutative for commutative predicates

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


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Comment at: llvm/include/llvm/CodeGen/GlobalISel/MIPatternMatch.h:657-661
+    return (L.match(MRI, TmpMI->getOperand(2).getReg()) &&
+            R.match(MRI, TmpMI->getOperand(3).getReg())) ||
+           (CmpInst::isCommutative(TmpPred) &&
+            (L.match(MRI, TmpMI->getOperand(3).getReg()) &&
+             R.match(MRI, TmpMI->getOperand(2).getReg())));
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The IR version has a separate m_c_ICmp from the regular m_ICmp for whether to bother commuting or not


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D135415/new/

https://reviews.llvm.org/D135415