Don't insert DBG_VALUE instructions after the first terminator.

For one, MachineBasicBlock::getFirstTerminator() doesn't understand what is
happening, and it also makes sense to have all control flow run through the
DBG_VALUE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123277 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2011-01-11 22:11:16 +00:00
parent b72d2a92b7
commit b08773749a

View File

@ -587,6 +587,13 @@ findInsertLocation(MachineBasicBlock *MBB, SlotIndex Idx, DebugLoc &DL,
SlotIndex Start = LIS.getMBBStartIdx(MBB);
Idx = Idx.getBaseIndex();
// Don't insert anything after the first terminator.
MachineBasicBlock::iterator Term = MBB->getFirstTerminator();
if (Term != MBB->end() && Idx >= LIS.getInstructionIndex(Term)) {
DL = Term->getDebugLoc();
return Term;
}
// Try to find an insert location by going backwards from Idx.
MachineInstr *MI;
while (!(MI = LIS.getInstructionFromIndex(Idx))) {