2 /* { dg-require-effective-target ssse3 } */
3 /* { dg-options "-O2 -fno-strict-aliasing -mssse3" } */
5 #include "ssse3-check.h"
6 #include "ssse3-vals.h"
10 /* Test the 64-bit form */
12 ssse3_test_phsubw (int *i1, int *i2, int *r)
14 __m64 t1 = *(__m64 *) i1;
15 __m64 t2 = *(__m64 *) i2;
16 *(__m64 *) r = _mm_hsub_pi16 (t1, t2);
20 /* Test the 128-bit form */
22 ssse3_test_phsubw128 (int *i1, int *i2, int *r)
24 /* Assumes incoming pointers are 16-byte aligned */
25 __m128i t1 = *(__m128i *) i1;
26 __m128i t2 = *(__m128i *) i2;
28 *(__m128i *) r = _mm_hsub_epi16 (t1, t2);
31 /* Routine to manually compute the results */
33 compute_correct_result (int *i1, int *i2, int *r)
35 short *s1 = (short *) i1;
36 short *s2 = (short *) i2;
37 short *sout = (short *) r;
40 for (i = 0; i < 4; i++)
41 sout[i] = s1[2 * i] - s1[2 * i + 1];
42 for (i = 0; i < 4; i++)
43 sout[i + 4] = s2[2 * i] - s2[2 * i + 1];
50 int r [4] __attribute__ ((aligned(16)));
54 for (i = 0; i < 256; i += 8)
56 /* Manually compute the result */
57 compute_correct_result (&vals[i + 0], &vals[i + 4], ck);
59 /* Run the 64-bit tests */
60 ssse3_test_phsubw (&vals[i + 0], &vals[i + 2], &r[0]);
61 ssse3_test_phsubw (&vals[i + 4], &vals[i + 6], &r[2]);
62 fail += chk_128 (ck, r);
64 /* Run the 128-bit tests */
65 ssse3_test_phsubw128 (&vals[i + 0], &vals[i + 4], r);
66 fail += chk_128 (ck, r);