diff options
Diffstat (limited to 'contrib/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp')
| -rw-r--r-- | contrib/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp b/contrib/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp index cb46d73..2ebfbd1 100644 --- a/contrib/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp +++ b/contrib/llvm/lib/Target/Mips/MipsSEISelDAGToDAG.cpp @@ -115,6 +115,11 @@ bool MipsSEDAGToDAGISel::replaceUsesWithZeroReg(MachineRegisterInfo *MRI, if (MI->isPHI() || MI->isRegTiedToDefOperand(OpNo) || MI->isPseudo()) continue; + // Also, we have to check that the register class of the operand + // contains the zero register. + if (!MRI->getRegClass(MO.getReg())->contains(ZeroReg)) + continue; + MO.setReg(ZeroReg); } |
