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mips16: When copying operands in a conditional branch instruction, allow for

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immediate operands to be copied.

Patch by Reed Kotler.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163811 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka 2012-09-13 17:12:37 +00:00
parent 0767dc546e
commit e6ac7d69d3
1 changed files with 9 additions and 3 deletions
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10
lib/Target/Mips/MipsInstrInfo.cpp
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@ -95,6 +95,7 @@ bool MipsInstrInfo::AnalyzeBranch(MachineBasicBlock &MBB,
SmallVectorImpl<MachineOperand> &Cond, SmallVectorImpl<MachineOperand> &Cond,
bool AllowModify) const bool AllowModify) const
{ {
MachineBasicBlock::reverse_iterator I = MBB.rbegin(), REnd = MBB.rend(); MachineBasicBlock::reverse_iterator I = MBB.rbegin(), REnd = MBB.rend();
// Skip all the debug instructions. // Skip all the debug instructions.
@ -177,9 +178,14 @@ void MipsInstrInfo::BuildCondBr(MachineBasicBlock &MBB,
const MCInstrDesc &MCID = get(Opc); const MCInstrDesc &MCID = get(Opc);
MachineInstrBuilder MIB = BuildMI(&MBB, DL, MCID); MachineInstrBuilder MIB = BuildMI(&MBB, DL, MCID);
for (unsigned i = 1; i < Cond.size(); ++i) for (unsigned i = 1; i < Cond.size(); ++i) {
if (Cond[i].isReg())
MIB.addReg(Cond[i].getReg()); MIB.addReg(Cond[i].getReg());
else if (Cond[i].isImm())
MIB.addImm(Cond[i].getImm());
else
assert(true && "Cannot copy operand");
}
MIB.addMBB(TBB); MIB.addMBB(TBB);
} }