Debug Info: Fix an oversight of r186553. Ensure that the function prologue

of an artificial function gets an artificial location as well.

llvm-svn: 187074

1 files changed, 9 insertions, 3 deletions

diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp
index 4de21d2b397..4e77f87cc65 100644
--- a/clang/lib/CodeGen/CGDebugInfo.cpp
+++ b/clang/lib/CodeGen/CGDebugInfo.cpp
@@ -72,13 +72,19 @@ ArtificialLocation::ArtificialLocation(CodeGenFunction &CGF, CGBuilderTy &B)
   : DI(CGF.getDebugInfo()), Builder(B) {
   if (DI) {
     SavedLoc = DI->getLocation();
+    DI->CurLoc = SourceLocation();
+    Builder.SetCurrentDebugLocation(llvm::DebugLoc());
+  }
+}
+
+void ArtificialLocation::Emit() {
+  if (DI) {
     // Sync the Builder.
     DI->EmitLocation(Builder, SavedLoc);
     DI->CurLoc = SourceLocation();
     // Construct a location that has a valid scope, but no line info.
-    llvm::DIDescriptor Scope = DI->LexicalBlockStack.empty() ?
-      llvm::DIDescriptor(DI->TheCU) :
-      llvm::DIDescriptor(DI->LexicalBlockStack.back());
+    assert(!DI->LexicalBlockStack.empty());
+    llvm::DIDescriptor Scope(DI->LexicalBlockStack.back());
     Builder.SetCurrentDebugLocation(llvm::DebugLoc::get(0, 0, Scope));
   }
 }