gcc/testsuite/gcc.target/arm/pr62554.c

   1 /* Check that pre ARMv4 compilation still works.  */
   2 /* { dg-do compile } */
   3 /* { dg-options "-marm -march=armv3 -O" } */
   4 /* { dg-require-effective-target arm_arm_ok } */
   5
   6 typedef struct
   7 {
   8   char bits;
   9   short val;
  10 } code;
  11
  12 union uu
  13 {
  14   short us;
  15   char b[2];
  16 };
  17
  18 int a, b, c, f, g, h;
  19 code *d;
  20
  21 code e;
  22
  23 int
  24 fn1 (void)
  25 {
  26   char i;
  27   do
  28     if (e.bits)
  29       {
  30       dodist:
  31         f = c;
  32         if (e.bits & 6)
  33           {
  34             ++i;
  35             if (g)
  36               do
  37                 {
  38                   union uu j;
  39                   j.b[1] = a;
  40                   h = j.us;
  41                 }
  42               while (fn1);
  43           }
  44         else
  45           {
  46             e = d[b];
  47             goto dodist;
  48           }
  49       }
  50   while (i);
  51 }