gcc/testsuite/gcc.target/i386/pr50725.c

   1 /* PR target/50725 */
   2 /* { dg-do run { target avx_runtime } } */
   3 /* { dg-options "-O2 -mavx" } */
   4
   5 extern void abort (void);
   6
   7 typedef int __attribute__((vector_size (32))) m256i;
   8
   9 __attribute__((noinline, noclone)) void
  10 foo (int *x, m256i *y)
  11 {
  12   asm volatile ("" : : "r" (x), "r" (y) : "memory");
  13 }
  14
  15 __attribute__((noinline, noclone)) int
  16 bar (int x)
  17 {
  18   if (x > 20)
  19     return 24;
  20   m256i i;
  21   foo (__builtin_alloca (x), &i);
  22   return 128;
  23 }
  24
  25 __attribute__((noinline, noclone)) int
  26 baz (int d0, int d1, int d2, int d3, int d4, int d5, int x)
  27 {
  28   if (x > 20)
  29     return 24;
  30   m256i i;
  31   d0 += d1 + d2 + d3 + d4 + d5; d1 += d0;
  32   foo (__builtin_alloca (x), &i);
  33   return 128;
  34 }
  35
  36 int
  37 main ()
  38 {
  39   if (bar (22) != 24 || bar (20) != 128)
  40     abort ();
  41 #ifdef __x86_64__
  42   register long long r10 __asm__ ("r10") = 0xdeadbeefdeadbeefULL;
  43   asm volatile ("" : "+r" (r10));
  44 #endif
  45   if (baz (0, 0, 0, 0, 0, 0, 22) != 24 || baz (0, 0, 0, 0, 0, 0, 20) != 128)
  46     abort ();
  47   return 0;
  48 }