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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2016-12-06 14:50:09 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2016-12-06 14:50:09 +0000 |
| commit | 29c17f3f588b58225574a8cb295cb8494fc9fc27 (patch) | |
| tree | e20a64f1e2e3155782b8307f23a186a3443493be /llvm/lib/CodeGen | |
| parent | f92d44c673f62676476a4cc035a28a894ac07180 (diff) | |
| download | bcm5719-llvm-29c17f3f588b58225574a8cb295cb8494fc9fc27.tar.gz bcm5719-llvm-29c17f3f588b58225574a8cb295cb8494fc9fc27.zip | |
Avoid repeated calls to Op.getOpcode(). NFCI.
llvm-svn: 288814
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index fc0cdeebb63..297a7c3121a 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -2039,7 +2039,8 @@ void SelectionDAG::computeKnownBits(SDValue Op, APInt &KnownZero, if (!DemandedElts) return; // No demanded elts, better to assume we don't know anything. - switch (Op.getOpcode()) { + unsigned Opcode = Op.getOpcode(); + switch (Opcode) { case ISD::Constant: // We know all of the bits for a constant! KnownOne = cast<ConstantSDNode>(Op)->getAPIntValue(); @@ -2478,7 +2479,7 @@ void SelectionDAG::computeKnownBits(SDValue Op, APInt &KnownZero, KnownZeroLow = std::min(KnownZeroLow, KnownZero2.countTrailingOnes()); - if (Op.getOpcode() == ISD::ADD) { + if (Opcode == ISD::ADD) { KnownZero |= APInt::getLowBitsSet(BitWidth, KnownZeroLow); if (KnownZeroHigh > 1) KnownZero |= APInt::getHighBitsSet(BitWidth, KnownZeroHigh - 1); @@ -2622,7 +2623,7 @@ void SelectionDAG::computeKnownBits(SDValue Op, APInt &KnownZero, break; default: - if (Op.getOpcode() < ISD::BUILTIN_OP_END) + if (Opcode < ISD::BUILTIN_OP_END) break; LLVM_FALLTHROUGH; case ISD::INTRINSIC_WO_CHAIN: |
