Test case for r126127 and r126141. Radar 9012638.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126142 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGen/attribute-section-data-common.c

@@ -0,0 +1,5 @@
+// RUN: %clang -S %s -o /dev/null
+struct rtxc_snapshot {
+  int a, b, c, d;
+};
+__attribute__ ((section("__DATA, __common"))) struct rtxc_snapshot rtxc_log_A[4];