Initialize debug info for special cases of functions that lack declarations and are generated by Clang (global initializers/destructors, thunks) . Fixes PR13942.

llvm-svn: 166676

3 files changed, 58 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/debug-info-blocks.cpp b/clang/test/CodeGenCXX/debug-info-blocks.cpp
new file mode 100644
index 00000000000..5b20db58280
--- /dev/null
+++ b/clang/test/CodeGenCXX/debug-info-blocks.cpp
@@ -0,0 +1,14 @@
+// RUN: %clang_cc1 %s -gline-tables-only -fblocks -S -emit-llvm -o - | FileCheck %s
+
+struct A {
+  A();
+  A(const A &);
+  ~A();
+};
+
+void test() {
+  __block A a;
+}
+
+// CHECK: [ DW_TAG_subprogram ] [line 10] [local] [def] [__Block_byref_object_copy_]
+// CHECK: [ DW_TAG_subprogram ] [line 10] [local] [def] [__Block_byref_object_dispose_]
diff --git a/clang/test/CodeGenCXX/debug-info-global-ctor-dtor.cpp b/clang/test/CodeGenCXX/debug-info-global-ctor-dtor.cpp
new file mode 100644
index 00000000000..bdaf58c8270
--- /dev/null
+++ b/clang/test/CodeGenCXX/debug-info-global-ctor-dtor.cpp
@@ -0,0 +1,27 @@
+// RUN: %clang_cc1 %s -g -fno-use-cxa-atexit -S -emit-llvm -o - \
+// RUN:     | FileCheck %s --check-prefix=CHECK-NOKEXT
+// RUN: %clang_cc1 %s -g -fno-use-cxa-atexit -fapple-kext -S -emit-llvm -o - \
+// RUN:     | FileCheck %s --check-prefix=CHECK-KEXT
+
+class A {
+ public:
+  A() {}
+  virtual ~A() {}
+};
+
+A glob;
+A array[2];
+
+void foo() {
+  static A stat;
+}
+
+// CHECK-NOKEXT: [ DW_TAG_subprogram ] [line 12] [local] [def] [__cxx_global_var_init]
+// CHECK-NOKEXT: [ DW_TAG_subprogram ] [line 12] [local] [def] [__dtor_glob]
+// CHECK-NOKEXT: [ DW_TAG_subprogram ] [line 13] [local] [def] [__cxx_global_var_init1]
+// CHECK-NOKEXT: [ DW_TAG_subprogram ] [line 13] [local] [def] [__cxx_global_array_dtor]
+// CHECK-NOKEXT: [ DW_TAG_subprogram ] [line 13] [local] [def] [__dtor_]
+// CHECK-NOKEXT: [ DW_TAG_subprogram ] [line 16] [local] [def] [__dtor__ZZ3foovE4stat]
+// CHECK-NOKEXT: [ DW_TAG_subprogram ] [line {{.*}}] [local] [def] [_GLOBAL__I_a]
+
+// CHECK-KEXT: [ DW_TAG_subprogram ] [line {{.*}}] [local] [def] [_GLOBAL__D_a]
diff --git a/clang/test/CodeGenCXX/debug-info-thunk.cpp b/clang/test/CodeGenCXX/debug-info-thunk.cpp
new file mode 100644
index 00000000000..58dd02885ea
--- /dev/null
+++ b/clang/test/CodeGenCXX/debug-info-thunk.cpp
@@ -0,0 +1,17 @@
+// RUN: %clang_cc1 %s -g -S -emit-llvm -o - | FileCheck %s
+
+struct A {
+  virtual void f();
+};
+
+struct B {
+  virtual void f();
+};
+
+struct C : A, B {
+  virtual void f();
+};
+
+void C::f() { }
+
+// CHECK: [ DW_TAG_subprogram ] [line 15] [def] [_ZThn8_N1C1fEv]