DebugInfo: Add support for 'nodebug' attribute on typedefs and alias templates
Seems like a logical extension to me - and of interest because it might
help reduce the debug info size of libc++ by applying this attribute to
type traits that have a disproportionate debug info cost compared to the
benefit (& possibly harm/confusion) they cause users.
llvm-svn: 362856
diff --git a/clang/test/CodeGenCXX/debug-info-nodebug.cpp b/clang/test/CodeGenCXX/debug-info-nodebug.cpp
index 9f140ef..1962b8c 100644
--- a/clang/test/CodeGenCXX/debug-info-nodebug.cpp
+++ b/clang/test/CodeGenCXX/debug-info-nodebug.cpp
@@ -1,5 +1,5 @@
-// 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
+// RUN: %clang_cc1 -DSETNODEBUG=0 -emit-llvm -std=c++14 -debug-info-kind=limited %s -o - | FileCheck %s --check-prefix=YESINFO
+// RUN: %clang_cc1 -DSETNODEBUG=1 -emit-llvm -std=c++14 -debug-info-kind=limited %s -o - | FileCheck %s --check-prefix=NOINFO
#if SETNODEBUG
#define NODEBUG __attribute__((nodebug))
@@ -53,3 +53,15 @@
// NOINFO-NOT: !DIGlobalVariable(name: "static_local"
// YESINFO-DAG: !DILocalVariable(name: "normal_local"
// NOINFO-NOT: !DILocalVariable(name: "normal_local"
+
+template <typename T>
+using y NODEBUG = int;
+void func5() {
+ NODEBUG typedef int x;
+ x a;
+ y<int> b;
+}
+// YESINFO-DAG: !DIDerivedType(tag: DW_TAG_typedef, name: "x"
+// NOINFO-NOT: !DIDerivedType(tag: DW_TAG_typedef, name: "x"
+// YESINFO-DAG: !DIDerivedType(tag: DW_TAG_typedef, name: "y<int>"
+// NOINFO-NOT: !DIDerivedType(tag: DW_TAG_typedef, name: "y<int>"