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Move findDebugLoc somewhere more central. Fix

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more cases where debug declarations affect
debug line info.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93953 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen
2010-01-20 00:19:24 +00:00
parent cd9e155755
commit 918f0f0bea
4 changed files with 22 additions and 21 deletions
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17
lib/CodeGen/MachineBasicBlock.cpp
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@ -528,3 +528,20 @@ void llvm::WriteAsOperand(raw_ostream &OS, const MachineBasicBlock *MBB,
bool t) {
OS << "BB#" << MBB->getNumber();
}
/// findDebugLoc - find the next valid DebugLoc starting at MBBI, skipping
/// any DEBUG_VALUE instructions. Return UnknownLoc if there is none.
DebugLoc
llvm::findDebugLoc(MachineBasicBlock::iterator &MBBI, MachineBasicBlock &MBB) {
DebugLoc DL;
if (MBBI != MBB.end()) {
// Skip debug declarations, we don't want a DebugLoc from them.
MachineBasicBlock::iterator MBBI2 = MBBI;
while (MBBI2 != MBB.end() &&
MBBI2->getOpcode()==TargetInstrInfo::DEBUG_VALUE)
MBBI2++;
if (MBBI2 != MBB.end())
DL = MBBI2->getDebugLoc();
}
return DL;
}