diff options
Diffstat (limited to 'llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp')
| -rw-r--r-- | llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp b/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp index a7216582fb3..42e70bb720d 100644 --- a/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp +++ b/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp @@ -314,6 +314,16 @@ SDNode* MipsDAGToDAGISel::Select(SDValue N) { case ISD::GLOBAL_OFFSET_TABLE: return getGlobalBaseReg(); + case ISD::ConstantFP: { + ConstantFPSDNode *CN = dyn_cast<ConstantFPSDNode>(N); + if (N.getValueType() == MVT::f64 && CN->isExactlyValue(+0.0)) { + SDValue Zero = CurDAG->getRegister(Mips::ZERO, MVT::i32); + ReplaceUses(N, Zero); + return Zero.getNode(); + } + break; + } + /// Handle direct and indirect calls when using PIC. On PIC, when /// GOT is smaller than about 64k (small code) the GA target is /// loaded with only one instruction. Otherwise GA's target must |
