weak globals that are const should get weak_odr linkage.
add a fixme about C++ const.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@78159 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/global-init.c b/test/CodeGen/global-init.c
index 2c4ccce..2a4c77b 100644
--- a/test/CodeGen/global-init.c
+++ b/test/CodeGen/global-init.c
@@ -7,8 +7,24 @@
int a = 242;
// CHECK: @a = global i32 242
+// This should get normal weak linkage.
+int c __attribute__((weak))= 0;
+// CHECK: @c = weak global i32 0
+
+
+
+// Since this is marked const, it should get weak_odr linkage, since all
+// definitions have to be the same.
+// CHECK: @d = weak_odr constant i32 0
+const int d __attribute__((weak))= 0;
+
+
+
+// NOTE: tentative definitions are processed at the end of the translation unit.
+
// This shouldn't be emitted as common because it has an explicit section.
// rdar://7119244
int b __attribute__((section("foo")));
// CHECK: @b = global i32 0, section "foo"
+
