Bug fix: do not emit static const local variables with mutable members

as constants.

Refactor and simplify all the separate checks for whether a type can be
emitted as a constant.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150793 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 12 insertions, 0 deletions

diff --git a/test/CodeGenCXX/static-mutable.cpp b/test/CodeGenCXX/static-mutable.cpp
new file mode 100644
index 0000000000..6d51f241d1
--- /dev/null
+++ b/test/CodeGenCXX/static-mutable.cpp
@@ -0,0 +1,12 @@
+// RUN: %clang_cc1 %s -triple=i686-linux-gnu -emit-llvm -o - | FileCheck %s
+
+struct S {
+  mutable int n;
+};
+int f() {
+  // The purpose of this test is to ensure that this variable is a global
+  // not a constant.
+  // CHECK: @_ZZ1fvE1s = internal global {{.*}} { i32 12 }
+  static const S s = { 12 };
+  return ++s.n;
+}