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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2015-04-05 14:30:37 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2015-04-05 14:30:37 +0000 |
| commit | bcf3bc2757702619cef87ce3a2b4a6ad3395e068 (patch) | |
| tree | fe902ab2b0d71702295ac447e73a76c23737cd5b /llvm/lib/CodeGen | |
| parent | f4c24b29e2521ab8cf7aa0e599eff55fe9ce23d5 (diff) | |
| download | bcm5719-llvm-bcf3bc2757702619cef87ce3a2b4a6ad3395e068.tar.gz bcm5719-llvm-bcf3bc2757702619cef87ce3a2b4a6ad3395e068.zip | |
[DAGCombiner] Merge FMUL Scalar and Vector constant canonicalization to RHS. NFCI.
llvm-svn: 234118
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index c66b116745a..e0866ef4ee7 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -7539,13 +7539,6 @@ SDValue DAGCombiner::visitFMUL(SDNode *N) { // This just handles C1 * C2 for vectors. Other vector folds are below. if (SDValue FoldedVOp = SimplifyVBinOp(N)) return FoldedVOp; - - // Canonicalize vector constant to RHS. - if (N0.getOpcode() == ISD::BUILD_VECTOR && - N1.getOpcode() != ISD::BUILD_VECTOR) - if (auto *BV0 = dyn_cast<BuildVectorSDNode>(N0)) - if (BV0->isConstant()) - return DAG.getNode(N->getOpcode(), SDLoc(N), VT, N1, N0); } // fold (fmul c1, c2) -> c1*c2 @@ -7553,7 +7546,8 @@ SDValue DAGCombiner::visitFMUL(SDNode *N) { return DAG.getNode(ISD::FMUL, SDLoc(N), VT, N0, N1); // canonicalize constant to RHS - if (N0CFP && !N1CFP) + if (isConstantFPBuildVectorOrConstantFP(N0) && + !isConstantFPBuildVectorOrConstantFP(N1)) return DAG.getNode(ISD::FMUL, SDLoc(N), VT, N1, N0); // fold (fmul A, 1.0) -> A |
