[CodeGen] Fix crash with duplicated mangled name.

Patch by Yunzhong Gao!

llvm-svn: 234767

1 files changed, 9 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/duplicate-mangled-name2.cpp b/clang/test/CodeGenCXX/duplicate-mangled-name2.cpp
new file mode 100644
index 00000000000..e582733fd8a
--- /dev/null
+++ b/clang/test/CodeGenCXX/duplicate-mangled-name2.cpp
@@ -0,0 +1,9 @@
+// RUN: %clang_cc1 -triple i686-pc-linux-gnu -emit-llvm-only %s -verify
+// RUN: %clang_cc1 -triple i686-pc-linux-gnu -femit-all-decls -emit-llvm-only %s -verify
+
+void foo(void *p) __asm("_ZN1SC2Ev");
+void foo(void *p) { } // expected-note {{previous}}
+
+struct S {
+  S() {} // expected-error {{definition with same mangled name as another definition}}
+} s;