Attach aritifical attribute with implicit parameters.
Radar 8493141.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@115104 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index e2ad3e1..45a887b 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -1729,12 +1729,15 @@
// Get location information.
unsigned Line = getLineNumber(VD->getLocation());
unsigned Column = getColumnNumber(VD->getLocation());
-
+ unsigned Flags = 0;
+ if (VD->isImplicit())
+ Flags |= llvm::DIDescriptor::FlagArtificial;
// Create the descriptor for the variable.
llvm::DIVariable D =
DebugFactory.CreateVariable(Tag, llvm::DIDescriptor(RegionStack.back()),
- VD->getName(),
- Unit, Line, Ty, CGM.getLangOptions().Optimize);
+ VD->getName(), Unit, Line, Ty,
+ CGM.getLangOptions().Optimize, Flags);
+
// Insert an llvm.dbg.declare into the current block.
llvm::Instruction *Call =
DebugFactory.InsertDeclare(Storage, D, Builder.GetInsertBlock());
diff --git a/test/CodeGenObjC/debug-info-self.m b/test/CodeGenObjC/debug-info-self.m
new file mode 100644
index 0000000..9146ab3
--- /dev/null
+++ b/test/CodeGenObjC/debug-info-self.m
@@ -0,0 +1,16 @@
+// RUN: %clang -fverbose-asm -g -S %s -o - | grep DW_AT_artificial | count 3
+// self and _cmd are marked as DW_AT_artificial.
+// abbrev code emits another DT_artificial comment.
+// myarg is not marked as DW_AT_artificial.
+
+@interface MyClass {
+}
+- (id)init:(int) myarg;
+@end
+
+@implementation MyClass
+- (id) init:(int) myarg
+{
+ return self;
+}
+@end