gcc/testsuite/gcc.dg/pr94600-3.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target size32plus } */
   3 /* { dg-options "-fdump-rtl-final -O2 -fno-unroll-loops" } */
   4 /* { dg-additional-options "-DALIGN_VAR" { target { ! non_strict_align } } } */
   5
   6 /* Same-address version of pr94600-1.c. */
   7
   8 typedef struct {
   9   unsigned int f0 : 4;
  10   unsigned int f1 : 11;
  11   unsigned int f2 : 10;
  12   unsigned int f3 : 7;
  13 } t0;
  14
  15 static t0 a0[]
  16 #ifdef ALIGN_VAR
  17 __attribute__((aligned (4)))
  18 #endif
  19   = {
  20  { .f0 = 7, .f1 = 99, .f3 = 1, },
  21  { .f0 = 7, .f1 = 251, .f3 = 1, },
  22  { .f0 = 8, .f1 = 127, .f3 = 5, },
  23  { .f0 = 5, .f1 = 1, .f3 = 1, },
  24  { .f0 = 5, .f1 = 1, .f3 = 1, },
  25  { .f0 = 5, .f1 = 1, .f3 = 1, },
  26 };
  27
  28 void
  29 foo(void)
  30 {
  31   __SIZE_TYPE__ i;
  32   __SIZE_TYPE__ base = 0x000a0000;
  33   for (i = 0; i < (sizeof (a0) / sizeof ((a0)[0])); i++) {
  34     *(volatile t0 *) (base + 44) = a0[i];
  35   }
  36 }
  37
  38 /* The loop isn't unrolled. */
  39 /* { dg-final { scan-rtl-dump-times {\(mem/v} 1 "final" } } */
  40 /* { dg-final { scan-rtl-dump-times {\(set \(mem/v} 1 "final" } } */