diff options
Diffstat (limited to 'gcc/testsuite/gcc.target/i386/ssse3-phsubw.c')
-rw-r--r-- | gcc/testsuite/gcc.target/i386/ssse3-phsubw.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/ssse3-phsubw.c b/gcc/testsuite/gcc.target/i386/ssse3-phsubw.c new file mode 100644 index 000000000..f3dbf9c98 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/ssse3-phsubw.c @@ -0,0 +1,83 @@ +/* { 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> + +#ifndef __AVX__ +/* Test the 64-bit form */ +static void +ssse3_test_phsubw (int *i1, int *i2, int *r) +{ + __m64 t1 = *(__m64 *) i1; + __m64 t2 = *(__m64 *) i2; + *(__m64 *) r = _mm_hsub_pi16 (t1, t2); + _mm_empty (); +} +#endif + +/* Test the 128-bit form */ +static void +ssse3_test_phsubw128 (int *i1, int *i2, int *r) +{ + /* Assumes incoming pointers are 16-byte aligned */ + __m128i t1 = *(__m128i *) i1; + __m128i t2 = *(__m128i *) i2; + + *(__m128i *) r = _mm_hsub_epi16 (t1, t2); +} + +/* Routine to manually compute the results */ +static void +compute_correct_result (int *i1, int *i2, int *r) +{ + short *s1 = (short *) i1; + short *s2 = (short *) i2; + short *sout = (short *) r; + int i; + + for (i = 0; i < 4; i++) + sout[i] = s1[2 * i] - s1[2 * i + 1]; + for (i = 0; i < 4; i++) + sout[i + 4] = s2[2 * i] - s2[2 * i + 1]; +} + +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); + +#ifndef __AVX__ + /* Run the 64-bit tests */ + ssse3_test_phsubw (&vals[i + 0], &vals[i + 2], &r[0]); + ssse3_test_phsubw (&vals[i + 4], &vals[i + 6], &r[2]); + fail += chk_128 (ck, r); +#endif + + /* Run the 128-bit tests */ + ssse3_test_phsubw128 (&vals[i + 0], &vals[i + 4], r); + fail += chk_128 (ck, r); + } + + if (fail != 0) + abort (); +} |