[PATCH] D89527: [DAGCombiner] Tighten reasscociation of visitFMA

Sanjay Patel via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Oct 16 08:49:38 PDT 2020


spatel added inline comments.


================
Comment at: llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:13257
   if (UnsafeFPMath) {
     // (fma x, c1, (fmul x, c2)) -> (fmul x, c1+c2)
     if (N2.getOpcode() == ISD::FMUL && N0 == N2.getOperand(0) &&
----------------
Can you add a test for this transform too?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D89527/new/

https://reviews.llvm.org/D89527



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