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Add DEBUG message.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113614 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2010-09-10 20:32:09 +00:00
parent 1ec2ee6526
commit 4bafda9618
2 changed files with 16 additions and 4 deletions
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8
lib/CodeGen/RegAllocFast.cpp
View File

@ -798,9 +798,11 @@ void RAFast::AllocateBasicBlock() {
setPhysReg(MI, i, LRI->second.PhysReg);
else {
int SS = StackSlotForVirtReg[Reg];
if (SS == -1)
if (SS == -1) {
// We can't allocate a physreg for a DebugValue, sorry!
DEBUG(dbgs() << "Unable to allocate vreg used by DBG_VALUE");
MO.setReg(0);
}
else {
// Modify DBG_VALUE now that the value is in a spill slot.
int64_t Offset = MI->getOperand(1).getImm();
@ -817,9 +819,11 @@ void RAFast::AllocateBasicBlock() {
MI = NewDV;
ScanDbgValue = true;
break;
} else
} else {
// We can't allocate a physreg for a DebugValue; sorry!
DEBUG(dbgs() << "Unable to allocate vreg used by DBG_VALUE");
MO.setReg(0);
}
}
}
}

12
lib/CodeGen/SelectionDAG/FastISel.cpp
View File

@ -473,10 +473,18 @@ bool FastISel::SelectCall(const User *I) {
return true;
const AllocaInst *AI = dyn_cast<AllocaInst>(Address);
// Don't handle byval struct arguments or VLAs, for example.
if (!AI)
if (!AI) {
// Building the map above is target independent. Generating DBG_VALUE
// inline is target dependent; do this now.
(void)TargetSelectInstruction(cast<Instruction>(I));
DenseMap<const Value *, unsigned>::iterator It =
FuncInfo.ValueMap.find(Address);
if (0 && It != FuncInfo.ValueMap.end()) {
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL,
TII.get(TargetOpcode::DBG_VALUE))
.addReg(It->second, RegState::Debug).addImm(0).addMetadata(DI->getVariable());
} else
(void)TargetSelectInstruction(cast<Instruction>(I));
}
return true;
}
case Intrinsic::dbg_value: {