gcc/testsuite/gcc.target/s390/target-attribute/tpragma-struct-vx-2.c

   1 /* Functional tests for the "target" attribute and pragma.  */
   2
   3 /* { dg-do run } */
   4 /* { dg-require-effective-target target_attribute } */
   5 /* { dg-require-effective-target s390_vx } */
   6 /* { dg-options "-march=z13 -mvx -mzarch" } */
   7
   8 #define V16 __attribute__ ((vector_size(16)))
   9 #pragma GCC push_options
  10 #pragma GCC target ("arch=z900,no-vx")
  11 __attribute__ ((noinline))
  12 void foo (char *d, int *off)
  13 {
  14   typedef struct
  15   {
  16     char c;
  17     V16 char vc;
  18   } s_t;
  19   s_t s = { 1,{ 0,11,22,33,44,55,66,77,88,99,101,111,121,131,141,151 }};
  20   *off = __builtin_offsetof(s_t, vc);
  21   __builtin_memcpy(d, &s.vc, 16);
  22 }
  23 #pragma GCC pop_options
  24
  25 #pragma GCC push_options
  26 #pragma GCC target ("no-vx")
  27 __attribute__ ((noinline))
  28 void bar (char *d, int *off)
  29 {
  30   typedef struct
  31   {
  32     char c;
  33     V16 char vc;
  34   } s_t;
  35   s_t s = { 1,{ 0,11,22,33,44,55,66,77,88,99,101,111,121,131,141,151 }};
  36   *off = __builtin_offsetof(s_t, vc);
  37   __builtin_memcpy(d, &s.vc, 16);
  38 }
  39 #pragma GCC pop_options
  40
  41 int main(int argc, char **argv)
  42 {
  43   char buf[16] = { 0 };
  44   char buf2[16] = { 0 };
  45   int off = 0;
  46   int off2 = 0;
  47   int rc;
  48
  49   rc = 0;
  50   foo(buf, &off);
  51   if (off != 16)
  52     rc += 1;
  53   if (buf[7] != 77)
  54     rc += 2;
  55   bar (buf2, &off2);
  56   if (off2 != 16)
  57     rc += 4;
  58   if (buf2[6] != 66)
  59     rc += 8;
  60
  61   return rc;
  62 }