gcc/testsuite/c-c++-common/pr33763.c

   1 /* PR tree-optimization/33763 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2" } */
   4
   5 typedef struct
   6 {
   7   void *a;
   8   void *b;
   9 } T;
  10 extern void *foo (const char *, const char *);
  11 extern void *bar (void *, const char *, T);
  12 extern int baz (const char *, int);
  13
  14 extern inline __attribute__ ((always_inline, gnu_inline)) int
  15 baz (const char *x, int y)
  16 {
  17   return 2;
  18 }
  19
  20 int
  21 baz (const char *x, int y)
  22 {
  23   return 1;
  24 }
  25
  26 int xa, xb;
  27
  28 static void *
  29 inl (const char *x, const char *y)
  30 {
  31   T t = { &xa, &xb };
  32   int *f = (int *) __builtin_malloc (sizeof (int));
  33   const char *z;
  34   int o = 0;
  35   void *r = 0;
  36
  37   for (z = y; *z; z++)
  38     {
  39       if (*z == 'r')
  40         o |= 1;
  41       if (*z == 'w')
  42         o |= 2;
  43     }
  44   if (o == 1)
  45     *f = baz (x, 0);
  46   if (o == 2)
  47     *f = baz (x, 1);
  48   if (o == 3)
  49     *f = baz (x, 2);
  50
  51   if (o && *f > 0)
  52     r = bar (f, "w", t);
  53   return r;
  54 }
  55
  56 void *
  57 foo (const char *x, const char *y)
  58 {
  59   return inl (x, y);
  60 }