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_phsubsw (int *i1, int *i2, int *r)
14 __m64 t1 = *(__m64 *) i1;
15 __m64 t2 = *(__m64 *) i2;
17 *(__m64 *) r = _mm_hsubs_pi16 (t1, t2);
22 /* Test the 128-bit form */
24 ssse3_test_phsubsw128 (int *i1, int *i2, int *r)
26 /* Assumes incoming pointers are 16-byte aligned */
27 __m128i t1 = *(__m128i *) i1;
28 __m128i t2 = *(__m128i *) i2;
29 *(__m128i *) r = _mm_hsubs_epi16 (t1, t2);
33 signed_saturate_to_word (int x)
38 if (x < (int) 0xffff8000)
44 /* Routine to manually compute the results */
46 compute_correct_result (int *i1, int *i2, int *r)
48 short *s1 = (short *) i1;
49 short *s2 = (short *) i2;
50 short *sout = (short *) r;
53 for (i = 0; i < 4; i++)
54 sout[i] = signed_saturate_to_word (s1[2 * i] - s1[2 * i + 1]);
56 for (i = 0; i < 4; i++)
57 sout[i + 4] = signed_saturate_to_word (s2[2 * i] - s2[2 * i + 1]);
64 int r [4] __attribute__ ((aligned(16)));
68 for (i = 0; i < 256; i += 8)
70 /* Manually compute the result */
71 compute_correct_result (&vals[i + 0], &vals[i + 4], ck);
73 /* Run the 64-bit tests */
74 ssse3_test_phsubsw (&vals[i + 0], &vals[i + 2], &r[0]);
75 ssse3_test_phsubsw (&vals[i + 4], &vals[i + 6], &r[2]);
76 fail += chk_128 (ck, r);
78 /* Run the 128-bit tests */
79 ssse3_test_phsubsw128 (&vals[i + 0], &vals[i + 4], r);
80 fail += chk_128 (ck, r);