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_pmaddubsw (int *i1, int *i2, int *r)
29 __m64 t1 = *(__m64 *) i1;
30 __m64 t2 = *(__m64 *) i2;
31 *(__m64 *) r = _mm_maddubs_pi16 (t1, t2);
35 /* Test the 128-bit form */
37 ssse3_test_pmaddubsw128 (int *i1, int *i2, int *r)
39 /* Assumes incoming pointers are 16-byte aligned */
40 __m128i t1 = *(__m128i *) i1;
41 __m128i t2 = *(__m128i *) i2;
42 *(__m128i *) r = _mm_maddubs_epi16 (t1, t2);
46 signed_saturate_to_word(int x)
51 if (x < (int) 0xffff8000)
57 /* Routine to manually compute the results */
59 compute_correct_result (int *i1, int *i2, int *r)
61 unsigned char *ub1 = (unsigned char *) i1;
62 char *sb2 = (char *) i2;
63 short *sout = (short *) r;
67 for (i = 0; i < 8; i++)
69 t0 = ((int) ub1[2 * i] * (int) sb2[2 * i] +
70 (int) ub1[2 * i + 1] * (int) sb2[2 * i + 1]);
71 sout[i] = signed_saturate_to_word (t0);
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_pmaddubsw (&vals[i + 0], &vals[i + 4], &r[0]);
90 ssse3_test_pmaddubsw (&vals[i + 2], &vals[i + 6], &r[2]);
91 fail += chk_128 (ck, r);
93 /* Run the 128-bit tests */
94 ssse3_test_pmaddubsw128 (&vals[i + 0], &vals[i + 4], r);
95 fail += chk_128 (ck, r);