[PATCH] D133695: [InstCombine] Optimize multiplication where both operands are negated

Francis Visoiu Mistrih via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Sep 12 09:29:21 PDT 2022


thegameg added inline comments.


================
Comment at: llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp:1837
+    Value *Op1 = II->getArgOperand(1);
+    if (match(Op0, m_FNeg(m_Value())) && match(Op1, m_FNeg(m_Value()))) {
+      Value *Op0NotNeg = cast<Instruction>(Op0)->getOperand(0);
----------------
Do we need to handle integers too? (`m_Neg`)


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D133695/new/

https://reviews.llvm.org/D133695



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