https://bugs.llvm.org/show_bug.cgi?id=40240
Bug ID: 40240
Summary: AArch64 patchpoint implementation fails to clobber lr
Product: new-bugs
Version: 7.0
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
casual implementation:
case TargetOpcode::STACKMAP:
case TargetOpcode::PATCHPOINT:
return emitPatchPoint(MI, BB);
should be:
{
MachineBasicBlock* MBB2 = TargetLoweringBase::emitPatchPoint(MI, MBB);
MachineFunction &MF = *MI.getMF();
MI.addOperand(MF, MachineOperand::CreateReg(AArch64::LR, true, true));
return MBB2;
}
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