mirror of
https://github.com/mikeoliphant/neural-amp-modeler-lv2.git
synced 2026-05-06 19:50:11 +02:00
Mike Oliphant
108 lines
1.9 KiB
C++
108 lines
1.9 KiB
C++
// From https://github.com/Dougal-s/Aether
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#ifndef ARCHITECTURE_HPP
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#define ARCHITECTURE_HPP
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#include <cfenv>
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#include <fenv.h>
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// check cpu architecture
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#if /* x86_64 */ \
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/* clang & gcc */ defined(__x86_64__) || \
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/* msvc */ defined(_M_AMD64) \
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#define ARCH_X86
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#define ARCH_X86_64
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#elif /* i386 */ \
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/* clang & gcc */ defined(__i386__) || \
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/* msvc */ defined(_M_IX86) \
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#define ARCH_X86
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#define ARCH_I386
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#elif /* Arm64 */ \
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/* clang & gcc */ defined(__aarch64__) || \
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/* msvc */ defined(_M_ARM64) \
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#define ARCH_ARM
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#define ARCH_ARM64
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#elif /* Arm */ \
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/* clang & gcc */ defined(__arm__) || \
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/* msvc */ defined(_M_ARM) \
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#define ARCH_ARM
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#define ARCH_ARM32
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#else
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#define ARCH_UNKNOWN
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#endif
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// check cpu extensions
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/* clang & gcc */
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#ifdef __SSE__
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#define ARCH_EXT_SSE
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#endif
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#ifdef __SSE2__
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#define ARCH_EXT_SSE2
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#endif
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#ifdef __SSE3__
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#define ARCH_EXT_SSE3
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#endif
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/* msvc */
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#if defined(ARCH_X86_64)
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#define ARCH_EXT_SSE
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#define ARCH_EXT_SSE2
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// msvc doesn't seem to have anything for sse3 so I am just assuming
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// it is supported
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#define ARCH_EXT_SSE3
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#elif defined(ARCH_I386)
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#if _M_IX86_FP > 0
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#define ARCH_EXT_SSE
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#elif _M_IX86_FP > 1
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#define ARCH_EXT_SSE3
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#define ARCH_EXT_SSE2
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#define ARCH_EXT_SSE
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#endif
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#endif
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// misc functions
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#ifdef ARCH_EXT_SSE
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#include <cfenv>
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#ifndef FE_DFL_DISABLE_SSE_DENORMS_ENV
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#include <immintrin.h>
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#endif
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#endif
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inline void disable_denormals() noexcept {
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#if defined(ARCH_EXT_SSE)
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#ifdef FE_DFL_DISABLE_SSE_DENORMS_ENV
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std::fesetenv(FE_DFL_DISABLE_SSE_DENORMS_ENV);
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#else
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_mm_setcsr(_mm_getcsr() | 0x8040);
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#endif
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#elif defined(ARCH_ARM)
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#if defined __has_builtin
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#if __has_builtin(__builtin_arm_set_fpscr) && __has_builtin(__builtin_arm_get_fpscr)
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__builtin_arm_set_fpscr(__builtin_arm_get_fpscr() | (1 << 24));
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#endif
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#endif
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#endif
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}
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#endif
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