[PATCH] D47443: [X86] Lowering FMA intrinsics to native IR (LLVM part)

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


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Comment at: lib/Target/X86/X86ISelLowering.cpp:30595
+  SDValue FMAdd = Op0;
+  SDValue FMSub = Op1;
+  if (FMSub.getOperand(2).getOpcode() != ISD::FNEG) {
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Can we detect this pattern after the ISD::FMA+FNEG has been turned into X86ISD::FMSUB? It might simplify the code a little.


Repository:
  rL LLVM

https://reviews.llvm.org/D47443