[PATCH] D103820: [X86] Prefer vpmovq2m over vpternlogd + vpcmpgtq

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


================
Comment at: llvm/lib/Target/X86/X86ISelLowering.cpp:22802
+  if (SetCCOpcode == ISD::SETGT && ISD::isBuildVectorAllOnes(Op1.getNode())) {
+    SetCCOpcode = ISD::SETGE;
+    Op1 = DAG.getConstant(0, dl, Op1.getValueType());
----------------
I'm a little confused. the vpmovq2m patter is (setgt imm_allzeros, X). Does this SETGE get canonicalized again?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D103820/new/

https://reviews.llvm.org/D103820