1 /* { dg-do run { target i?86-*-* x86_64-*-* } } */
2 /* { dg-require-effective-target ssse3 } */
3 /* { dg-options "-O2 -mssse3" } */
6 #include "../../gcc.dg/i386-cpuid.h"
7 #include "ssse3-vals.h"
9 static void ssse3_test (void);
14 unsigned long cpu_facilities;
16 cpu_facilities = i386_cpuid_ecx ();
18 /* Run SSSE3 test only if host has SSSE3 support. */
19 if ((cpu_facilities & bit_SSSE3))
25 /* Test the 64-bit form */
27 ssse3_test_phsubsw (int *i1, int *i2, int *r)
29 __m64 t1 = *(__m64 *) i1;
30 __m64 t2 = *(__m64 *) i2;
32 *(__m64 *) r = _mm_hsubs_pi16 (t1, t2);
37 /* Test the 128-bit form */
39 ssse3_test_phsubsw128 (int *i1, int *i2, int *r)
41 /* Assumes incoming pointers are 16-byte aligned */
42 __m128i t1 = *(__m128i *) i1;
43 __m128i t2 = *(__m128i *) i2;
44 *(__m128i *) r = _mm_hsubs_epi16 (t1, t2);
48 signed_saturate_to_word (int x)
53 if (x < (int) 0xffff8000)
59 /* Routine to manually compute the results */
61 compute_correct_result (int *i1, int *i2, int *r)
63 short *s1 = (short *) i1;
64 short *s2 = (short *) i2;
65 short *sout = (short *) r;
68 for (i = 0; i < 4; i++)
69 sout[i] = signed_saturate_to_word (s1[2 * i] - s1[2 * i + 1]);
71 for (i = 0; i < 4; i++)
72 sout[i + 4] = signed_saturate_to_word (s2[2 * i] - s2[2 * i + 1]);
79 int r [4] __attribute__ ((aligned(16)));
83 for (i = 0; i < 256; i += 8)
85 /* Manually compute the result */
86 compute_correct_result (&vals[i + 0], &vals[i + 4], ck);
88 /* Run the 64-bit tests */
89 ssse3_test_phsubsw (&vals[i + 0], &vals[i + 2], &r[0]);
90 ssse3_test_phsubsw (&vals[i + 4], &vals[i + 6], &r[2]);
91 fail += chk_128 (ck, r);
93 /* Run the 128-bit tests */
94 ssse3_test_phsubsw128 (&vals[i + 0], &vals[i + 4], r);
95 fail += chk_128 (ck, r);