gcc/testsuite/gcc.c-torture/execute/simd-4.c

   1 /* { dg-require-effective-target stdint_types } */
   2 #include <stdint.h>
   3 typedef int32_t __attribute__((vector_size(8))) v2si;
   4 int64_t s64;
   5
   6 static inline int64_t
   7 __ev_convert_s64 (v2si a)
   8 {
   9   return (int64_t) a;
  10 }
  11
  12 int main()
  13 {
  14   union { int64_t ll; int32_t i[2]; } endianness_test;
  15   endianness_test.ll = 1;
  16   int32_t little_endian = endianness_test.i[0];
  17   s64 = __ev_convert_s64 ((v2si){1,0xffffffff});
  18   if (s64 != (little_endian ? 0xffffffff00000001LL : 0x1ffffffffLL))
  19     abort ();
  20   return 0;
  21 }