If location info is attached with an instruction then keep track of alloca slots used by a variable. This info will be used by AsmPrinter to emit debug info for variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83189 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/FastISel.cpp b/lib/CodeGen/SelectionDAG/FastISel.cpp
index 54544a4..0bec2cf 100644
--- a/lib/CodeGen/SelectionDAG/FastISel.cpp
+++ b/lib/CodeGen/SelectionDAG/FastISel.cpp
@@ -407,7 +407,6 @@
|| !DW->ShouldEmitDwarfDebug())
return true;
- Value *Variable = DI->getVariable();
Value *Address = DI->getAddress();
if (BitCastInst *BCI = dyn_cast<BitCastInst>(Address))
Address = BCI->getOperand(0);
@@ -418,8 +417,15 @@
StaticAllocaMap.find(AI);
if (SI == StaticAllocaMap.end()) break; // VLAs.
int FI = SI->second;
-
- DW->RecordVariable(cast<MDNode>(Variable), FI);
+ if (MMI) {
+ MetadataContext &TheMetadata = AI->getContext().getMetadata();
+ unsigned MDDbgKind = TheMetadata.getMDKind("dbg");
+ MDNode *AllocaLocation =
+ dyn_cast_or_null<MDNode>(TheMetadata.getMD(MDDbgKind, AI));
+ if (AllocaLocation)
+ MMI->setVariableDbgInfo(DI->getVariable(), AllocaLocation, FI);
+ }
+ DW->RecordVariable(DI->getVariable(), FI);
return true;
}
case Intrinsic::eh_exception: {