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Revert r128045 and r128051, debug info enhancements.

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Temporarily reverting these to see if we can get llvm-objdump to link. Hopefully this is not the problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128097 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick
2011-03-22 19:18:42 +00:00
parent 91dde155f1
commit c1dbd5d9c3
4 changed files with 53 additions and 83 deletions
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17
lib/CodeGen/LiveDebugVariables.cpp
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@ -101,6 +101,10 @@ class UserValue {
void insertDebugValue(MachineBasicBlock *MBB, SlotIndex Idx, unsigned LocNo,
LiveIntervals &LIS, const TargetInstrInfo &TII);
/// insertDebugKill - Insert an undef DBG_VALUE into MBB at Idx.
void insertDebugKill(MachineBasicBlock *MBB, SlotIndex Idx,
LiveIntervals &LIS, const TargetInstrInfo &TII);
public:
/// UserValue - Create a new UserValue.
UserValue(const MDNode *var, unsigned o, DebugLoc L,
@ -748,6 +752,13 @@ void UserValue::insertDebugValue(MachineBasicBlock *MBB, SlotIndex Idx,
.addOperand(Loc).addImm(offset).addMetadata(variable);
}
void UserValue::insertDebugKill(MachineBasicBlock *MBB, SlotIndex Idx,
LiveIntervals &LIS, const TargetInstrInfo &TII) {
MachineBasicBlock::iterator I = findInsertLocation(MBB, Idx, LIS);
BuildMI(*MBB, I, findDebugLoc(), TII.get(TargetOpcode::DBG_VALUE)).addReg(0)
.addImm(offset).addMetadata(variable);
}
void UserValue::emitDebugValues(VirtRegMap *VRM, LiveIntervals &LIS,
const TargetInstrInfo &TII) {
MachineFunction::iterator MFEnd = VRM->getMachineFunction().end();
@ -779,6 +790,12 @@ void UserValue::emitDebugValues(VirtRegMap *VRM, LiveIntervals &LIS,
break;
++I;
if (Stop == MBBEnd)
continue;
// The current interval ends before MBB.
// Insert a kill if there is a gap.
if (!I.valid() || I.start() > Stop)
insertDebugKill(MBB, Stop, LIS, TII);
}
}