diff options
| author | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2009-11-13 18:49:59 +0000 |
|---|---|---|
| committer | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2009-11-13 18:49:59 +0000 |
| commit | a8173b934fdfdc7a3ca543a0734b7c8fa1969366 (patch) | |
| tree | 8702e5e4fb29b7cde7e3d6d4fabbb86eb771765b /lib/Target/Mips/MipsISelDAGToDAG.cpp | |
| parent | 01205a80f5c789234029813f8c09488891c0b23e (diff) | |
| download | llvm-a8173b934fdfdc7a3ca543a0734b7c8fa1969366.tar.gz llvm-a8173b934fdfdc7a3ca543a0734b7c8fa1969366.tar.bz2 llvm-a8173b934fdfdc7a3ca543a0734b7c8fa1969366.tar.xz | |
Support fp64 immediate zero, this fixes only part of PR5445
because the testcase is triggering one more bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88674 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Mips/MipsISelDAGToDAG.cpp')
| -rw-r--r-- | lib/Target/Mips/MipsISelDAGToDAG.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/Target/Mips/MipsISelDAGToDAG.cpp b/lib/Target/Mips/MipsISelDAGToDAG.cpp index a7216582fb..42e70bb720 100644 --- a/lib/Target/Mips/MipsISelDAGToDAG.cpp +++ b/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 |