bool sse42_is_xdigit(const char* s) { if (s == nullptr) { return false; } // 3 ranges const __m128i ranges = _mm_setr_epi8( '0', '9', 'a', 'f', 'A', 'F', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ); __m128i* mem = reinterpret_cast<__m128i*>(const_cast<char*>(s)); const uint8_t mode = _SIDD_UBYTE_OPS | _SIDD_CMP_RANGES | _SIDD_MASKED_NEGATIVE_POLARITY | _SIDD_LEAST_SIGNIFICANT | _SIDD_BIT_MASK; for (/**/; /**/; mem++) { const __m128i chunk = _mm_loadu_si128(mem); if (_mm_cmpistrc(ranges, chunk, mode)) { // there are some characters outside the given ranges in a chunk return false; } else if (_mm_cmpistrz(ranges, chunk, mode)) { // there is zero byte in a chunk if (*s == 0) { // empty string return false; } else { return true; } } } assert(false && "impossible happend"); return false; }
void test8bit (void) { i1 = _mm_cmpistrm (i2, i3, k4); /* { dg-error "the third argument must be an 8-bit immediate" } */ k1 = _mm_cmpistri (i2, i3, k4); /* { dg-error "the third argument must be an 8-bit immediate" } */ k1 = _mm_cmpistra (i2, i3, k4); /* { dg-error "the third argument must be an 8-bit immediate" } */ k1 = _mm_cmpistrc (i2, i3, k4); /* { dg-error "the third argument must be an 8-bit immediate" } */ k1 = _mm_cmpistro (i2, i3, k4); /* { dg-error "the third argument must be an 8-bit immediate" } */ k1 = _mm_cmpistrs (i2, i3, k4); /* { dg-error "the third argument must be an 8-bit immediate" } */ k1 = _mm_cmpistrz (i2, i3, k4); /* { dg-error "the third argument must be an 8-bit immediate" } */ i1 = _mm_cmpestrm (i2, k2, i3, k3, k4); /* { dg-error "the fifth argument must be an 8-bit immediate" } */ k1 = _mm_cmpestri (i2, k2, i3, k3, k4); /* { dg-error "the fifth argument must be an 8-bit immediate" } */ k1 = _mm_cmpestra (i2, k2, i3, k3, k4); /* { dg-error "the fifth argument must be an 8-bit immediate" } */ k1 = _mm_cmpestrc (i2, k2, i3, k3, k4); /* { dg-error "the fifth argument must be an 8-bit immediate" } */ k1 = _mm_cmpestro (i2, k2, i3, k3, k4); /* { dg-error "the fifth argument must be an 8-bit immediate" } */ k1 = _mm_cmpestrs (i2, k2, i3, k3, k4); /* { dg-error "the fifth argument must be an 8-bit immediate" } */ k1 = _mm_cmpestrz (i2, k2, i3, k3, k4); /* { dg-error "the fifth argument must be an 8-bit immediate" } */ b1 = _mm256_blend_ps (b2, b3, k4); /* { dg-error "the last argument must be an 8-bit immediate" } */ k1 = _cvtss_sh (f1, k4); /* { dg-error "the last argument must be an 8-bit immediate" } */ i1 = _mm256_cvtps_ph (b2, k4); /* { dg-error "the last argument must be an 8-bit immediate" } */ b1 = _mm256_dp_ps (b2, b3, k4); /* { dg-error "the last argument must be an 8-bit immediate" } */ e1 = _mm256_permute2f128_pd (e2, e3, k4);/* { dg-error "the last argument must be an 8-bit immediate" } */ b1 = _mm256_permute2f128_ps (b2, b3, k4);/* { dg-error "the last argument must be an 8-bit immediate" } */ l1 = _mm256_permute2f128_si256 (l2, l3, k4);/* { dg-error "the last argument must be an 8-bit immediate" } */ b1 = _mm256_permute_ps (b2, k4); /* { dg-error "the last argument must be an 8-bit immediate" } */ i1 = _mm_aeskeygenassist_si128 (i2, k4);/* { dg-error "the last argument must be an 8-bit immediate" } */ i1 = _mm_blend_epi16 (i2, i3, k4); /* { dg-error "the last argument must be an 8-bit immediate" } */ i1 = _mm_clmulepi64_si128 (i2, i3, k4); /* { dg-error "the last argument must be an 8-bit immediate" } */ i1 = _mm_cvtps_ph (a1, k4); /* { dg-error "the last argument must be an 8-bit immediate" } */ d1 = _mm_dp_pd (d2, d3, k4); /* { dg-error "the last argument must be an 8-bit immediate" } */ a1 = _mm_dp_ps (a2, a3, k4); /* { dg-error "the last argument must be an 8-bit immediate" } */ a1 = _mm_insert_ps (a2, a3, k4); /* { dg-error "the last argument must be an 8-bit immediate" } */ i1 = _mm_mpsadbw_epu8 (i2, i3, k4); /* { dg-error "the last argument must be an 8-bit immediate" } */ a1 = _mm_permute_ps (a2, k4); /* { dg-error "the last argument must be an 8-bit immediate" } */ i1 = _mm_slli_si128 (i2, k4); /* { dg-error "the last argument must be an 8-bit immediate" } */ i1 = _mm_srli_si128 (i2, k4); /* { dg-error "the last argument must be an 8-bit immediate" } */ }
int test_mm_cmpistrz(__m128i A, __m128i B) { // CHECK-LABEL: test_mm_cmpistrz // CHECK: call i32 @llvm.x86.sse42.pcmpistriz128(<16 x i8> %{{.*}}, <16 x i8> %{{.*}}, i8 7) return _mm_cmpistrz(A, B, 7); }
int test_mm_cmpistrz(__m128i A, __m128i B) { // CHECK-LABEL: test_mm_cmpistrz // CHECK: @llvm.x86.sse42.pcmpistriz128 return _mm_cmpistrz(A, B, 7); }