diff options
| -rw-r--r-- | lib/Target/SparcV9/SparcV9InstrSelection.cpp | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/lib/Target/SparcV9/SparcV9InstrSelection.cpp b/lib/Target/SparcV9/SparcV9InstrSelection.cpp index 64b9a7e281..049f1414c0 100644 --- a/lib/Target/SparcV9/SparcV9InstrSelection.cpp +++ b/lib/Target/SparcV9/SparcV9InstrSelection.cpp @@ -2053,29 +2053,37 @@ GetInstructionsByRule(InstructionNode* subtreeRoot, { maskUnsignedResult = true; - // If second operand of divide is smaller than 64 bits, we have + // If either operand of divide is smaller than 64 bits, we have // to make sure the unused top bits are correct because they affect // the result. These bits are already correct for unsigned values. // They may be incorrect for signed values, so sign extend to fill in. Instruction* divI = subtreeRoot->getInstruction(); + Value* divOp1 = subtreeRoot->leftChild()->getValue(); Value* divOp2 = subtreeRoot->rightChild()->getValue(); - Value* divOpToUse = divOp2; - if (divOp2->getType()->isSigned()) { - unsigned opSize=target.getTargetData().getTypeSize(divOp2->getType()); + Value* divOp1ToUse = divOp1; + Value* divOp2ToUse = divOp2; + if (divI->getType()->isSigned()) { + unsigned opSize=target.getTargetData().getTypeSize(divI->getType()); if (opSize < 8) { MachineCodeForInstruction& mcfi=MachineCodeForInstruction::get(divI); - divOpToUse = new TmpInstruction(mcfi, divOp2); + divOp1ToUse = new TmpInstruction(mcfi, divOp1); + divOp2ToUse = new TmpInstruction(mcfi, divOp2); target.getInstrInfo(). CreateSignExtensionInstructions(target, divI->getParent()->getParent(), - divOp2, divOpToUse, + divOp1, divOp1ToUse, + 8*opSize, mvec, mcfi); + target.getInstrInfo(). + CreateSignExtensionInstructions(target, + divI->getParent()->getParent(), + divOp2, divOp2ToUse, 8*opSize, mvec, mcfi); } } mvec.push_back(BuildMI(ChooseDivInstruction(target, subtreeRoot), 3) - .addReg(subtreeRoot->leftChild()->getValue()) - .addReg(divOpToUse) + .addReg(divOp1ToUse) + .addReg(divOp2ToUse) .addRegDef(divI)); break; |