gcc/testsuite/gcc.dg/guality/pr43051-1.c

   1 /* PR debug/43051 */
   2 /* { dg-do run } */
   3 /* { dg-options "-g" } */
   4
   5 extern void abort (void);
   6
   7 static void __attribute__ ((noinline))
   8 foo (const char *x, long long y, int z)
   9 {
  10   asm volatile ("" : : "r" (x), "r" ((int) y), "r" (z) : "memory");
  11 }
  12
  13 struct S
  14 {
  15   struct S *n;
  16   int v;
  17 };
  18
  19 struct S a[10];
  20
  21 struct S * __attribute__ ((noinline))
  22 bar (struct S *c, int v, struct S *e)
  23 {
  24 #ifdef __i386__
  25   register int si asm ("esi"), di asm ("edi"), bx
  26 # if !defined (__pic__) && !defined (__APPLE__)
  27     asm ("ebx")
  28 # endif
  29     ;
  30   asm volatile ("" : "=r" (si), "=r" (di), "=r" (bx));
  31 #endif
  32   while (c < e)
  33     {
  34       foo ("c", (__UINTPTR_TYPE__) c, 0);       /* { dg-final { gdb-test 34 "c" "\&a\[0\]" } } */
  35       foo ("v", v, 1);                          /* { dg-final { gdb-test 35 "v" "1" } } */
  36       foo ("e", (__UINTPTR_TYPE__) e, 2);       /* { dg-final { gdb-test 36 "e" "\&a\[1\]" } } */
  37       if (c->v == v)
  38         return c;
  39       foo ("c", (__UINTPTR_TYPE__) c, 3);       /* { dg-final { gdb-test 39 "c" "\&a\[0\]" } } */
  40       foo ("v", v, 4);                          /* { dg-final { gdb-test 40 "v" "1" } } */
  41       foo ("e", (__UINTPTR_TYPE__) e, 5);       /* { dg-final { gdb-test 41 "e" "\&a\[1\]" } } */
  42       c++;
  43     }
  44 #ifdef __i386__
  45   asm volatile ("" : : "r" (si), "r" (di), "r" (bx));
  46 #endif
  47   return 0;
  48 }
  49
  50 int
  51 main ()
  52 {
  53   asm volatile ("" : : "r" (&a[0]) : "memory");
  54   if (bar (&a[a[0].v], a[0].v + 1, &a[a[0].v + 1]))
  55     abort ();
  56   return 0;
  57 }