mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-17 05:29:24 +00:00
Fix a bug introduced with my previous patch, where it didn't correctly handle
instructions which replace themselves when FI's are rewritten (common on ppc). This fixes CodeGen/PowerPC/2006-10-17-ppc64-alloca.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35789 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
parent
599ded1a7f
commit
0ebe9c132c
@ -498,20 +498,22 @@ void PEI::replaceFrameIndices(MachineFunction &Fn) {
|
||||
|
||||
for (MachineFunction::iterator BB = Fn.begin(), E = Fn.end(); BB != E; ++BB) {
|
||||
if (RS) RS->enterBasicBlock(BB);
|
||||
for (MachineBasicBlock::iterator I = BB->begin(); I != BB->end(); ++I) {
|
||||
for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i)
|
||||
if (I->getOperand(i).isFrameIndex()) {
|
||||
for (MachineBasicBlock::iterator I = BB->begin(); I != BB->end(); ) {
|
||||
MachineInstr *MI = I++;
|
||||
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i)
|
||||
if (MI->getOperand(i).isFrameIndex()) {
|
||||
// If this instruction has a FrameIndex operand, we need to use that
|
||||
// target machine register info object to eliminate it.
|
||||
MRI.eliminateFrameIndex(I, RS);
|
||||
MRI.eliminateFrameIndex(MI, RS);
|
||||
|
||||
// Revisit the instruction in full. Some instructions (e.g. inline
|
||||
// asm instructions) can have multiple frame indices.
|
||||
e = I->getNumOperands();
|
||||
i = -1U;
|
||||
--I;
|
||||
MI = 0;
|
||||
break;
|
||||
}
|
||||
// Update register states.
|
||||
if (RS) RS->forward(I);
|
||||
if (RS && MI) RS->forward(MI);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user