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https://github.com/asmjit/asmjit.git
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cdc4eacbb1
* Renamed round to round_even
* Added round_half_up intrinsic
* Added floating-point mod
* Added a scalar version of floating-point abs and neg
* Added a behavior enum to specify how float to int conversion
handles out-of-range and NaN cases
* Updated some APX stuff in instruction database
50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
// This file is part of AsmJit project <https://asmjit.com>
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//
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// See <asmjit/core.h> or LICENSE.md for license and copyright information
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// SPDX-License-Identifier: Zlib
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#include <asmjit/ujit.h>
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#if defined(ASMJIT_UJIT_X86)
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#if defined(_MSC_VER)
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#include <intrin.h>
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#else
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#include <immintrin.h>
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#endif
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namespace UniCompilerTests {
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// A reference implementation of MUL+ADD with the use of FMA. This has to be provided otherwise the
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// compiler may use FPU registers in 32-bit x86 case, which would make the result different than when
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// compiled by JIT compiler that would use XMM registers (32/64-bit SSE/AVX operations).
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float fmadd_fma_ref(float a, float b, float c) noexcept {
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__m128 av = _mm_set1_ps(a);
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__m128 bv = _mm_set1_ps(b);
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__m128 cv = _mm_set1_ps(c);
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return _mm_cvtss_f32(_mm_fmadd_ss(av, bv, cv));
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}
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double fmadd_fma_ref(double a, double b, double c) noexcept {
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__m128d av = _mm_set1_pd(a);
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__m128d bv = _mm_set1_pd(b);
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__m128d cv = _mm_set1_pd(c);
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return _mm_cvtsd_f64(_mm_fmadd_sd(av, bv, cv));
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}
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void madd_fma_check_valgrind_bug(const float a[4], const float b[4], const float c[4], float dst[4]) noexcept {
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__m128 av = _mm_loadu_ps(a);
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__m128 bv = _mm_loadu_ps(b);
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__m128 cv = _mm_loadu_ps(c);
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__m128 dv = _mm_fmadd_ss(av, bv, cv);
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_mm_storeu_ps(dst, dv);
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}
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} // {UniCompilerTests}
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#endif // ASMJIT_UJIT_X86
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