return false;
FI = &getAnalysis<GCModuleInfo>().getFunctionInfo(*MF.getFunction());
- if (!FI->getStrategy().needsSafePoints())
- return false;
-
MMI = &getAnalysis<MachineModuleInfo>();
TII = MF.getSubtarget().getInstrInfo();
- // Find the size of the stack frame.
- FI->setFrameSize(MF.getFrameInfo()->getStackSize());
+ // Find the size of the stack frame. There may be no correct static frame
+ // size, we use UINT64_MAX to represent this.
+ const MachineFrameInfo *MFI = MF.getFrameInfo();
+ const TargetRegisterInfo *RegInfo = MF.getSubtarget().getRegisterInfo();
+ const bool DynamicFrameSize = MFI->hasVarSizedObjects() ||
+ RegInfo->needsStackRealignment(MF);
+ FI->setFrameSize(DynamicFrameSize ? UINT64_MAX : MFI->getStackSize());
// Find all safe points.
- FindSafePoints(MF);
+ if (FI->getStrategy().needsSafePoints())
+ FindSafePoints(MF);
- // Find the stack offsets for all roots.
+ // Find the concrete stack offsets for all roots (stack slots)
FindStackOffsets(MF);
return false;