fix PR 6157. Testcase pending.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94996 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index e1bbf9f..4815626 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -3747,6 +3747,8 @@
return 0;
}
case Intrinsic::dbg_declare: {
+ // FIXME: currently, we get here only if OptLevel != CodeGenOpt::None.
+ // The real handling of this intrinsic is in FastISel.
if (OptLevel != CodeGenOpt::None)
// FIXME: Variable debug info is not supported here.
return 0;
@@ -3776,6 +3778,39 @@
MMI->setVariableDbgInfo(Variable, FI, Dbg);
return 0;
}
+ case Intrinsic::dbg_value: {
+ // FIXME: currently, we get here only if OptLevel != CodeGenOpt::None.
+ // The real handling of this intrinsic is in FastISel.
+ if (OptLevel != CodeGenOpt::None)
+ // FIXME: Variable debug info is not supported here.
+ return 0;
+ DwarfWriter *DW = DAG.getDwarfWriter();
+ if (!DW)
+ return 0;
+ DbgValueInst &DI = cast<DbgValueInst>(I);
+ if (!DIDescriptor::ValidDebugInfo(DI.getVariable(), CodeGenOpt::None))
+ return 0;
+
+ MDNode *Variable = DI.getVariable();
+ Value *V = DI.getValue();
+ if (!V)
+ return 0;
+ if (BitCastInst *BCI = dyn_cast<BitCastInst>(V))
+ V = BCI->getOperand(0);
+ AllocaInst *AI = dyn_cast<AllocaInst>(V);
+ // Don't handle byval struct arguments or VLAs, for example.
+ if (!AI)
+ return 0;
+ DenseMap<const AllocaInst*, int>::iterator SI =
+ FuncInfo.StaticAllocaMap.find(AI);
+ if (SI == FuncInfo.StaticAllocaMap.end())
+ return 0; // VLAs.
+ int FI = SI->second;
+ if (MachineModuleInfo *MMI = DAG.getMachineModuleInfo())
+ if (MDNode *Dbg = DI.getMetadata("dbg"))
+ MMI->setVariableDbgInfo(Variable, FI, Dbg);
+ return 0;
+ }
case Intrinsic::eh_exception: {
// Insert the EXCEPTIONADDR instruction.
assert(CurMBB->isLandingPad() &&"Call to eh.exception not in landing pad!");