embedded-4_9-branch/gcc/testsuite/gcc.dg/tree-ssa/pr61144.c

   1 /* { dg-do compile } */
   2 /* { dg-require-weak "" } */
   3 /* { dg-options "-O2 -fdump-tree-optimized" } */
   4 static int dummy = 0;
   5 extern int foo __attribute__((__weak__, __alias__("dummy")));
   6 int bar() { if (foo) return 1; return 0; }
   7 /* { dg-final { scan-tree-dump-not "return 0" "optimized"} } */