[PATCH] D82065: [AMDGPU][CostModel] Add fneg cost estimation

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


================
Comment at: llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp:553
+  case ISD::FNEG:
+    return TLI->isFNegFree(SLT) ? 0 : LT.first * NElts;
   default:
----------------
If you're putting in in target code, might as well just return 0


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D82065/new/

https://reviews.llvm.org/D82065