gcc/testsuite/gcc.target/i386/avx-pr80286.c

   1 /* PR target/80286 */
   2 /* { dg-do run { target avx } } */
   3 /* { dg-options "-O2 -mavx" } */
   4
   5 #include "avx-check.h"
   6 #include <immintrin.h>
   7
   8 __m256i m;
   9
  10 __attribute__((noinline, noclone)) __m128i
  11 foo (__m128i x)
  12 {
  13   int s = _mm_cvtsi128_si32 (_mm256_castsi256_si128 (m));
  14   return _mm_srli_epi16 (x, s);
  15 }
  16
  17 static void
  18 avx_test (void)
  19 {
  20   __m128i a = (__m128i) (__v8hi) { 1 << 7, 2 << 8, 3 << 9, 4 << 10, 5 << 11, 6 << 12, 7 << 13, 8 << 12 };
  21   m = (__m256i) (__v8si) { 7, 8, 9, 10, 11, 12, 13, 14 };
  22   __m128i c = foo (a);
  23   __m128i b = (__m128i) (__v8hi) { 1, 2 << 1, 3 << 2, 4 << 3, 5 << 4, 6 << 5, 7 << 6, 8 << 5 };
  24   if (__builtin_memcmp (&c, &b, sizeof (__m128i)))
  25     __builtin_abort ();
  26 }