diff options
| author | Akira Hatanaka <ahatanaka@mips.com> | 2011-12-20 22:06:20 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@mips.com> | 2011-12-20 22:06:20 +0000 |
| commit | 403992dc588da0f429c33061244c6d1c579d6b5a (patch) | |
| tree | ac4d429313c3d2e516c893739e335ca8f4b5f551 /lib/Target/Mips/MipsISelDAGToDAG.cpp | |
| parent | caace8abdfc42cc23c70372d438e8b6aec4f0058 (diff) | |
32-to-64-bit sign extension pattern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146995 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Mips/MipsISelDAGToDAG.cpp')
| -rw-r--r-- | lib/Target/Mips/MipsISelDAGToDAG.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Target/Mips/MipsISelDAGToDAG.cpp b/lib/Target/Mips/MipsISelDAGToDAG.cpp index b33a4e6c09..8f3cb55715 100644 --- a/lib/Target/Mips/MipsISelDAGToDAG.cpp +++ b/lib/Target/Mips/MipsISelDAGToDAG.cpp @@ -293,6 +293,12 @@ SDNode* MipsDAGToDAGISel::Select(SDNode *Node) { case ISD::ConstantFP: { ConstantFPSDNode *CN = dyn_cast<ConstantFPSDNode>(Node); if (Node->getValueType(0) == MVT::f64 && CN->isExactlyValue(+0.0)) { + if (Subtarget.hasMips64()) { + SDValue Zero = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), dl, + Mips::ZERO_64, MVT::i64); + return CurDAG->getMachineNode(Mips::DMTC1, dl, MVT::f64, Zero); + } + SDValue Zero = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), dl, Mips::ZERO, MVT::i32); return CurDAG->getMachineNode(Mips::BuildPairF64, dl, MVT::f64, Zero, |