vendor/clang/clang-release_39-r276489

1 files changed, 55 insertions, 0 deletions

diff --git a/test/CodeGenCXX/debug-info-nodebug.cpp b/test/CodeGenCXX/debug-info-nodebug.cpp
new file mode 100644
index 000000000000..9f140efaed6f
--- /dev/null
+++ b/test/CodeGenCXX/debug-info-nodebug.cpp
@@ -0,0 +1,55 @@
+// RUN: %clang_cc1 -DSETNODEBUG=0 -emit-llvm -debug-info-kind=limited %s -o - | FileCheck %s --check-prefix=YESINFO
+// RUN: %clang_cc1 -DSETNODEBUG=1 -emit-llvm -debug-info-kind=limited %s -o - | FileCheck %s --check-prefix=NOINFO
+
+#if SETNODEBUG
+#define NODEBUG __attribute__((nodebug))
+#else
+#define NODEBUG
+#endif
+
+// Const global variable. Use it so it gets emitted.
+NODEBUG static const int const_global_int_def = 1;
+void func1(int);
+void func2() { func1(const_global_int_def); }
+// YESINFO-DAG: !DIGlobalVariable(name: "const_global_int_def"
+// NOINFO-NOT:  !DIGlobalVariable(name: "const_global_int_def"
+
+// Global variable with a more involved type.
+// If the variable has no debug info, the type should not appear either.
+struct S1 {
+  int a;
+  int b;
+};
+NODEBUG S1 global_struct = { 2, 3 };
+// YESINFO-DAG: !DICompositeType({{.*}} name: "S1"
+// NOINFO-NOT:  !DICompositeType({{.*}} name: "S1"
+// YESINFO-DAG: !DIGlobalVariable(name: "global_struct"
+// NOINFO-NOT:  !DIGlobalVariable(name: "global_struct"
+
+// Static data members. Const member needs a use.
+// Also the class as a whole needs a use, so that we produce debug info for
+// the entire class (iterating over the members, demonstrably skipping those
+// with 'nodebug').
+struct S2 {
+  NODEBUG static int static_member;
+  NODEBUG static const int static_const_member = 4;
+};
+int S2::static_member = 5;
+void func3() {
+  S2 junk;
+  func1(S2::static_const_member);
+}
+// YESINFO-DAG: !DIGlobalVariable(name: "static_member"
+// NOINFO-NOT:  !DIGlobalVariable(name: "static_member"
+// YESINFO-DAG: !DIDerivedType({{.*}} name: "static_const_member"
+// NOINFO-NOT:  !DIDerivedType({{.*}} name: "static_const_member"
+
+// Function-local static and auto variables.
+void func4() {
+  NODEBUG static int static_local = 6;
+  NODEBUG        int normal_local = 7;
+}
+// YESINFO-DAG: !DIGlobalVariable(name: "static_local"
+// NOINFO-NOT:  !DIGlobalVariable(name: "static_local"
+// YESINFO-DAG: !DILocalVariable(name: "normal_local"
+// NOINFO-NOT:  !DILocalVariable(name: "normal_local"