Debug Info: Fine-tune the simple return expression location handling to

only affect functions without a separate return block. This fixes the
linetable for void functions with cleanups and multiple returns.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@187090 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 34 insertions, 0 deletions

diff --git a/test/CodeGenCXX/linetable-cleanup.cpp b/test/CodeGenCXX/linetable-cleanup.cpp
index 1f117f2afa..96b8572252 100644
--- a/test/CodeGenCXX/linetable-cleanup.cpp
+++ b/test/CodeGenCXX/linetable-cleanup.cpp
@@ -7,6 +7,12 @@
 // CHECK: call void @_ZN1CD1Ev(%class.C* {{.*}}), !dbg ![[CLEANUP:[0-9]+]]
 // CHECK: ret i32 0, !dbg ![[RET:[0-9]+]]
 
+// CHECK: define {{.*}}bar
+// CHECK: ret void, !dbg ![[RETBAR:[0-9]+]]
+
+// CHECK: define {{.*}}baz
+// CHECK: ret void, !dbg ![[RETBAZ:[0-9]+]]
+
 class C {
 public:
   ~C() {}
@@ -22,3 +28,31 @@ int foo()
   return 0;
   // CHECK: ![[RET]] = metadata !{i32 [[@LINE+1]], i32 0, metadata !{{.*}}, null}
 }
+
+void bar()
+{
+  if (!foo())
+    // CHECK: {{.*}} = metadata !{i32 [[@LINE+1]], i32 0, metadata !{{.*}}, null}
+    return;
+
+  if (foo()) {
+    C c;
+    c.i = foo();
+  }
+  // Clang creates only a single ret instruction. Make sure it is at a useful line.
+  // CHECK: ![[RETBAR]] = metadata !{i32 [[@LINE+1]], i32 0, metadata !{{.*}}, null}
+}
+
+void baz()
+{
+  if (!foo())
+    // CHECK: {{.*}} = metadata !{i32 [[@LINE+1]], i32 0, metadata !{{.*}}, null}
+    return;
+
+  if (foo()) {
+    // no cleanup
+    // CHECK: {{.*}} = metadata !{i32 [[@LINE+1]], i32 0, metadata !{{.*}}, null}
+    return;
+  }
+  // CHECK: ![[RETBAZ]] = metadata !{i32 [[@LINE+1]], i32 0, metadata !{{.*}}, null}
+}