From: Sanjay Patel <spatel@rotateright.com>
Date: Fri, 9 Aug 2019 14:30:59 +0000 (+0000)
Subject: [DAGCombiner] remove redundant fold for X*1.0; NFC
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=25a595cfa2a015537a872275ac0c11763e9fe285;p=llvm

[DAGCombiner] remove redundant fold for X*1.0; NFC

This is handled at node creation time (similar to X/1.0)
after:
rL357029
(no fast-math-flags needed)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368443 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 16b47780544..63431d5b7ec 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -12043,10 +12043,6 @@ SDValue DAGCombiner::visitFMUL(SDNode *N) {
      !isConstantFPBuildVectorOrConstantFP(N1))
     return DAG.getNode(ISD::FMUL, DL, VT, N1, N0, Flags);
 
-  // fold (fmul A, 1.0) -> A
-  if (N1CFP && N1CFP->isExactlyValue(1.0))
-    return N0;
-
   if (SDValue NewSel = foldBinOpIntoSelect(N))
     return NewSel;