gcc/testsuite/gcc.target/i386/sse-9.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -msse" } */
   3
   4 #include "sse-check.h"
   5
   6 #include <xmmintrin.h>
   7 #include <stddef.h>
   8 #include <string.h>
   9
  10 static void
  11 sse_test (void)
  12 {
  13   int alignment, n;
  14   void *ptr;
  15   int errors = 0;
  16   const char test [] = "This is a test.";
  17
  18   for (alignment = 1; alignment <= (1 << 20); alignment += alignment)
  19     {
  20       ptr = _mm_malloc (alignment, alignment);
  21       if (((ptrdiff_t) ptr) & (alignment - 1))
  22         abort ();
  23       if (ptr)
  24         {
  25           n = alignment > sizeof test ? sizeof test : alignment;
  26           memcpy (ptr, test, n);
  27           if (memcmp (ptr, test, n) != 0)
  28             errors++;
  29           _mm_free (ptr);
  30         }
  31       else
  32         errors++;
  33     }
  34
  35   if (errors != 0)
  36     abort ();
  37 }