gcc/testsuite/gcc.dg/guality/pr56154-1.c

   1 /* PR debug/56154 */
   2 /* { dg-do run } */
   3 /* { dg-options "-g" } */
   4 /* { dg-additional-sources "pr56154-aux.c" } */
   5
   6 #include "../nop.h"
   7
   8 union U { int a, b; };
   9 volatile int z;
  10
  11 __attribute__((noinline, noclone)) int
  12 foo (int fd, union U x)
  13 {
  14   int result = x.a != 0;
  15   if (fd != 0)
  16     result = x.a == 0;
  17   asm (NOP : : : "memory");       /* { dg-final { gdb-test pr56154-1.c:17 "x.a" "4" } } */
  18   z = x.a;
  19   x.a = 6;
  20   asm (NOP : : : "memory");       /* { dg-final { gdb-test pr56154-1.c:20 "x.a" "6" } } */
  21   return result;
  22 }
  23
  24 void
  25 test_main (void)
  26 {
  27   union U u = { .a = 4 };
  28   foo (0, u);
  29 }