Emit label for llvm.dbg.func.start of the inlined function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58786 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 3 deletions

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
index 738575380d..6a2f2760ee 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
@@ -3556,9 +3556,12 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
       SubprogramDesc *Subprogram = cast<SubprogramDesc>(DD);
       const CompileUnitDesc *CompileUnit = Subprogram->getFile();
       unsigned SrcFile = MMI->RecordSource(CompileUnit);
-      // Record the source line but does create a label. It will be emitted
-      // at asm emission time.
-      MMI->RecordSourceLine(Subprogram->getLine(), 0, SrcFile);
+      // Record the source line but does not create a label for the normal
+      // function start. It will be emitted at asm emission time. However,
+      // create a label if this is a beginning of inlined function.
+      unsigned LabelID = MMI->RecordSourceLine(Subprogram->getLine(), 0, SrcFile);
+      if (MMI->getSourceLines().size() != 1)
+        DAG.setRoot(DAG.getLabel(ISD::DBG_LABEL, getRoot(), LabelID));
     }
 
     return 0;