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| author | Sanjay Patel <spatel@rotateright.com> | 2018-10-07 15:18:30 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2018-10-07 15:18:30 +0000 |
| commit | 46a9dc2e3e2c687a43abbed253d0298fbcc67baa (patch) | |
| tree | b199cac1869ae516787df651075feb441df3eaa4 /llvm/lib/CodeGen/SelectionDAG | |
| parent | 31a3f2aabaf832bca14ecfe6c409ca0618681ffc (diff) | |
| download | bcm5719-llvm-46a9dc2e3e2c687a43abbed253d0298fbcc67baa.tar.gz bcm5719-llvm-46a9dc2e3e2c687a43abbed253d0298fbcc67baa.zip | |
[DAGCombiner] shorten code for bitcast+fabs fold; NFC
llvm-svn: 343939
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index ec7f63a3d3f..c91aa83b421 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -12162,11 +12162,8 @@ SDValue DAGCombiner::visitFABS(SDNode *N) { if (N0.getOpcode() == ISD::FNEG || N0.getOpcode() == ISD::FCOPYSIGN) return DAG.getNode(ISD::FABS, SDLoc(N), VT, N0.getOperand(0)); - // Transform fabs(bitconvert(x)) -> bitconvert(x & ~sign) to avoid loading - // constant pool values. - if (!TLI.isFAbsFree(VT) && - N0.getOpcode() == ISD::BITCAST && - N0.getNode()->hasOneUse()) { + // fabs(bitcast(x)) -> bitcast(x & ~sign) to avoid constant pool loads. + if (!TLI.isFAbsFree(VT) && N0.getOpcode() == ISD::BITCAST && N0.hasOneUse()) { SDValue Int = N0.getOperand(0); EVT IntVT = Int.getValueType(); if (IntVT.isInteger() && !IntVT.isVector()) { |
