From a09fc184acd0874ea9876cdb2c4b123b226d8587 Mon Sep 17 00:00:00 2001 From: Thiago Macieira Date: Wed, 15 Nov 2017 21:01:15 -0800 Subject: Add a configure-time check for QT_COMPILER_SUPPORTS_SIMD_ALWAYS This has two main benefits: 1) introduces a qmake CONFIG we can use in .pro/.pri/.prf files 2) removes the need to keep an up-to-date list of which compilers support the feature The test is implemented as trying to compile every single SIMD test we currently have, but without passing the -mXXX option. The reason for trying all of them is that some people may have modified their mkspecs to add -mXXX options or -march=XXX, which could enable the particular feature we tried, resulting in a false positive outcome. Change-Id: I938b024e38bf4aac9154fffd14f7784dc8d1f020 Reviewed-by: Oswald Buddenhagen --- config.tests/x86_simd/main.cpp | 253 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 253 insertions(+) create mode 100644 config.tests/x86_simd/main.cpp (limited to 'config.tests/x86_simd/main.cpp') diff --git a/config.tests/x86_simd/main.cpp b/config.tests/x86_simd/main.cpp new file mode 100644 index 0000000000..6005f5b023 --- /dev/null +++ b/config.tests/x86_simd/main.cpp @@ -0,0 +1,253 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Intel Corporation. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// All of our supported compilers support +#include +#define T(x) (QT_COMPILER_SUPPORTS_ ## x) + +#if !defined(__INTEL_COMPILER) && !defined(_MSC_VER) +/* GCC requires attributes for a function */ +# define attribute_target(x) __attribute__((__target__(x))) +#else +# define attribute_target(x) +#endif + +#if T(SSE2) +attribute_target("sse2") void test_sse2() +{ + __m128i a = _mm_setzero_si128(); + _mm_maskmoveu_si128(a, _mm_setzero_si128(), 0); +} +#endif + +#if T(SSE3) +attribute_target("sse3") void test_sse3() +{ + __m128d a = _mm_set1_pd(6.28); + __m128d b = _mm_set1_pd(3.14); + __m128d result = _mm_addsub_pd(a, b); + (void) _mm_movedup_pd(result); +} +#endif + +#if T(SSSE3) +attribute_target("ssse3") void test_ssse3() +{ + __m128i a = _mm_set1_epi32(42); + _mm_abs_epi8(a); + (void) _mm_sign_epi16(a, _mm_set1_epi32(64)); +} +#endif + +#if T(SSE4_1) +attribute_target("sse4.1") void test_sse4_1() +{ + __m128 a = _mm_setzero_ps(); + _mm_ceil_ps(a); + __m128i result = _mm_mullo_epi32(_mm_set1_epi32(42), _mm_set1_epi32(64)); + (void)result; +} +#endif + +#if T(SSE4_2) +attribute_target("sse4.2") void test_sse4_2() +{ + __m128i a = _mm_setzero_si128(); + __m128i b = _mm_set1_epi32(42); + (void) _mm_cmpestrm(a, 16, b, 16, 0); +} +#endif + +#if T(AESNI) +attribute_target("aes,sse4.2") void test_aesni() +{ + __m128i a = _mm_setzero_si128(); + __m128i b = _mm_aesenc_si128(a, a); + __m128i c = _mm_aesdec_si128(a, b); + (void)c; +} +#endif + +#if T(F16C) +attribute_target("f16c") void test_f16c() +{ + __m128i a = _mm_setzero_si128(); + __m128 b = _mm_cvtph_ps(a); + __m256 b256 = _mm256_cvtph_ps(a); + (void) _mm_cvtps_ph(b, 0); + (void) _mm256_cvtps_ph(b256, 0); +} +#endif + +#if T(RDRND) +attribute_target("rdrnd") int test_rdrnd() +{ + unsigned short us; + unsigned int ui; + if (_rdrand16_step(&us)) + return 1; + if (_rdrand32_step(&ui)) + return 1; +# if defined(__x86_64) || defined(__x86_64__) || defined(__amd64) || defined(_M_X64) + unsigned long long ull; + if (_rdrand64_step(&ull)) + return 1; +# endif +} +#endif + +#if T(SHANI) +attribute_target("sha") void test_shani() +{ + __m128i a = _mm_setzero_si128(); + __m128i b = _mm_sha1rnds4_epu32(a, a, 0); + __m128i c = _mm_sha1msg1_epu32(a, b); + __m128i d = _mm_sha256msg2_epu32(b, c); + (void)d; +} +#endif + +#if T(AVX) +attribute_target("avx") void test_avx() +{ + __m256d a = _mm256_setzero_pd(); + __m256d b = _mm256_set1_pd(42.42); + (void) _mm256_add_pd(a, b); +} +#endif + +#if T(AVX2) +attribute_target("avx2") void test_avx2() +{ + _mm256_zeroall(); + __m256i a = _mm256_setzero_si256(); + __m256i b = _mm256_and_si256(a, a); + (void) _mm256_add_epi8(a, b); +} +#endif + +#if T(AVX512F) +attribute_target("avx512f") void test_avx512f(char *ptr) +{ + /* AVX512 Foundation */ + __mmask16 m = ~1; + __m512i i; + __m512d d; + __m512 f; + i = _mm512_maskz_loadu_epi32(0, ptr); + d = _mm512_loadu_pd((double *)ptr + 64); + f = _mm512_loadu_ps((float *)ptr + 128); + _mm512_mask_storeu_epi64(ptr, m, i); + _mm512_mask_storeu_ps(ptr + 64, m, f); + _mm512_mask_storeu_pd(ptr + 128, m, d); +} +#endif + +#if T(AVX512ER) +attribute_target("avx512er") void test_avx512er() +{ + /* AVX512 Exponential and Reciprocal */ + __m512 f; + f = _mm512_exp2a23_round_ps(f, 8); +} +#endif + +#if T(AVX512CD) +attribute_target("avx512cd") void test_avx512cd() +{ + /* AVX512 Conflict Detection */ + __mmask16 m = ~1; + __m512i i; + i = _mm512_maskz_conflict_epi32(m, i); +} +#endif + +#if T(AVX512PF) +attribute_target("avx512pf") void test_avx512pf(void *ptr) +{ + /* AVX512 Prefetch */ + __m512i i; + __mmask16 m = 0xf; + _mm512_mask_prefetch_i64scatter_pd(ptr, m, i, 2, 2); +} +#endif + +#if T(AVX512DQ) +attribute_target("avx512dq") void test_avx512dq() +{ + /* AVX512 Doubleword and Quadword support */ + __m512i i; + __mmask16 m = ~1; + m = _mm512_movepi32_mask(i); +} +#endif + +#if T(AVX512BW) +attribute_target("avx512bw") void test_avx512bw(char *ptr) +{ + /* AVX512 Byte and Word support */ + __m512i i; + __mmask16 m = ~1; + i = _mm512_mask_loadu_epi8(i, m, ptr - 8); +} +#endif + +#if T(AVX512VL) +attribute_target("avx512vl") void test_avx512vl(char *ptr) +{ + /* AVX512 Vector Length */ + __mmask16 m = ~1; + __m256i i2 = _mm256_maskz_loadu_epi32(0, ptr); + _mm256_mask_storeu_epi32(ptr + 1, m, i2); +} +#endif + +#if T(AVX512IFMA) +attribute_target("avx512ifma") void test_avx512ifma() +{ + /* AVX512 Integer Fused Multiply-Add */ + __m512i i; + i = _mm512_madd52lo_epu64(i, i, i); +} +#endif + +int main() +{ + return 0; +} -- cgit v1.2.3