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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.

llvm-svn: 163811
This commit is contained in:
Akira Hatanaka 2012-09-13 17:12:37 +00:00
parent eae8fc91cf
commit a6138a9115
1 changed files with 9 additions and 3 deletions
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12
lib/Target/Mips/MipsInstrInfo.cpp
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@ -95,6 +95,7 @@ bool MipsInstrInfo::AnalyzeBranch(MachineBasicBlock &MBB,
SmallVectorImpl<MachineOperand> &Cond,
bool AllowModify) const
{
MachineBasicBlock::reverse_iterator I = MBB.rbegin(), REnd = MBB.rend();
// Skip all the debug instructions.
@ -177,9 +178,14 @@ void MipsInstrInfo::BuildCondBr(MachineBasicBlock &MBB,
const MCInstrDesc &MCID = get(Opc);
MachineInstrBuilder MIB = BuildMI(&MBB, DL, MCID);
for (unsigned i = 1; i < Cond.size(); ++i)
MIB.addReg(Cond[i].getReg());
for (unsigned i = 1; i < Cond.size(); ++i) {
if (Cond[i].isReg())
MIB.addReg(Cond[i].getReg());
else if (Cond[i].isImm())
MIB.addImm(Cond[i].getImm());
else
assert(true && "Cannot copy operand");
}
MIB.addMBB(TBB);
}