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While emitting DBG_VALUE for registers spilled at the end of a block do not use location of MBB->end(). If a block does not have terminator then incoming iterator points to end(). 

llvm-svn: 110411
This commit is contained in:
Devang Patel 2010-08-06 00:26:18 +00:00
parent bda59bd247
commit 8a18aee421
1 changed files with 8 additions and 1 deletions
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9
llvm/lib/CodeGen/RegAllocFast.cpp
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@ -277,7 +277,14 @@ void RAFast::spillVirtReg(MachineBasicBlock::iterator MI,
int64_t Offset = 0;
if (DBG->getOperand(1).isImm())
Offset = DBG->getOperand(1).getImm();
DebugLoc DL = MI->getDebugLoc();
DebugLoc DL;
if (MI == MBB->end()) {
// If MI is at basic block end then use last instruction's location.
MachineBasicBlock::iterator EI = MI;
DL = (--EI)->getDebugLoc();
}
else
DL = MI->getDebugLoc();
if (MachineInstr *NewDV =
TII->emitFrameIndexDebugValue(*MF, FI, Offset, MDPtr, DL)) {
MachineBasicBlock *MBB = DBG->getParent();