| /* { dg-do run } */ |
| /* { dg-require-effective-target ssse3 } */ |
| /* { dg-options "-O2 -fno-strict-aliasing -mssse3" } */ |
| |
| #ifndef CHECK_H |
| #define CHECK_H "ssse3-check.h" |
| #endif |
| |
| #ifndef TEST |
| #define TEST ssse3_test |
| #endif |
| |
| #include CHECK_H |
| |
| #include "ssse3-vals.h" |
| |
| #include <tmmintrin.h> |
| |
| /* Test the 64-bit form */ |
| static void |
| ssse3_test_pmaddubsw (int *i1, int *i2, int *r) |
| { |
| __m64 t1 = *(__m64 *) i1; |
| __m64 t2 = *(__m64 *) i2; |
| *(__m64 *) r = _mm_maddubs_pi16 (t1, t2); |
| _mm_empty (); |
| } |
| |
| /* Test the 128-bit form */ |
| static void |
| ssse3_test_pmaddubsw128 (int *i1, int *i2, int *r) |
| { |
| /* Assumes incoming pointers are 16-byte aligned */ |
| __m128i t1 = *(__m128i *) i1; |
| __m128i t2 = *(__m128i *) i2; |
| *(__m128i *) r = _mm_maddubs_epi16 (t1, t2); |
| } |
| |
| static short |
| signed_saturate_to_word(int x) |
| { |
| if (x > (int) 0x7fff) |
| return 0x7fff; |
| |
| if (x < (int) 0xffff8000) |
| return 0x8000; |
| |
| return (short) x; |
| } |
| |
| /* Routine to manually compute the results */ |
| static void |
| compute_correct_result (int *i1, int *i2, int *r) |
| { |
| unsigned char *ub1 = (unsigned char *) i1; |
| char *sb2 = (char *) i2; |
| short *sout = (short *) r; |
| int t0; |
| int i; |
| |
| for (i = 0; i < 8; i++) |
| { |
| t0 = ((int) ub1[2 * i] * (int) sb2[2 * i] + |
| (int) ub1[2 * i + 1] * (int) sb2[2 * i + 1]); |
| sout[i] = signed_saturate_to_word (t0); |
| } |
| } |
| |
| static void |
| TEST (void) |
| { |
| int i; |
| int r [4] __attribute__ ((aligned(16))); |
| int ck [4]; |
| int fail = 0; |
| |
| for (i = 0; i < 256; i += 8) |
| { |
| /* Manually compute the result */ |
| compute_correct_result (&vals[i + 0], &vals[i + 4], ck); |
| |
| /* Run the 64-bit tests */ |
| ssse3_test_pmaddubsw (&vals[i + 0], &vals[i + 4], &r[0]); |
| ssse3_test_pmaddubsw (&vals[i + 2], &vals[i + 6], &r[2]); |
| fail += chk_128 (ck, r); |
| |
| /* Run the 128-bit tests */ |
| ssse3_test_pmaddubsw128 (&vals[i + 0], &vals[i + 4], r); |
| fail += chk_128 (ck, r); |
| } |
| |
| if (fail != 0) |
| abort (); |
| } |