[PATCH] D91937: [ISel] Port AArch64 SABD and UABD to DAGCombine
Simon Pilgrim via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Dec 2 09:38:13 PST 2020
RKSimon added inline comments.
================
Comment at: llvm/include/llvm/Target/TargetSelectionDAG.td:362
+def abds : SDNode<"ISD::ABDS" , SDTIntBinOp, []>;
+def abdu : SDNode<"ISD::ABDU" , SDTIntBinOp, []>;
def smullohi : SDNode<"ISD::SMUL_LOHI" , SDTIntBinHiLoOp, [SDNPCommutative]>;
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RKSimon wrote:
> Can't these be commutative ?
alive2 says yes: https://alive2.llvm.org/ce/z/8giJFY
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D91937/new/
https://reviews.llvm.org/D91937
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