Duckstation/src/common/cpu_detect.h

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#pragma once
#if defined(_MSC_VER)
#if defined(_M_X64)
#define CPU_X64 1
#elif defined(_M_IX86)
#define CPU_X86 1
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#elif defined(_M_ARM64)
#define CPU_AARCH64 1
#elif defined(_M_ARM)
#define CPU_AARCH32 1
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#else
#error Unknown architecture.
#endif
#elif defined(__GNUC__) || defined(__clang__)
#if defined(__x86_64__)
#define CPU_X64 1
#elif defined(__i386__)
#define CPU_X86 1
#elif defined(__aarch64__)
#define CPU_AARCH64 1
#elif defined(__arm__)
#define CPU_AARCH32 1
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#else
#error Unknown architecture.
#endif
#else
#error Unknown compiler.
#endif