+/**
+ * \file
+ * This file provides CPU features detection.
+ */
+
+#ifndef VLC_CPU_H
+# define VLC_CPU_H 1
+
+VLC_API unsigned vlc_CPU(void);
+
+# if defined (__i386__) || defined (__x86_64__)
+# define HAVE_FPU 1
+# define VLC_CPU_MMX 8
+# define VLC_CPU_3dNOW 16
+# define VLC_CPU_MMXEXT 32
+# define VLC_CPU_SSE 64
+# define VLC_CPU_SSE2 128
+# define VLC_CPU_SSE3 256
+# define VLC_CPU_SSSE3 512
+# define VLC_CPU_SSE4_1 1024
+# define VLC_CPU_SSE4_2 2048
+# define VLC_CPU_SSE4A 4096
+# define VLC_CPU_AVX 8192
+# define VLC_CPU_AVX2 16384
+# define VLC_CPU_XOP 32768
+# define VLC_CPU_FMA4 65536
+
+# if defined (__MMX__)
+# define vlc_CPU_MMX() (1)
+# define VLC_MMX
+# else
+# define vlc_CPU_MMX() ((vlc_CPU() & VLC_CPU_MMX) != 0)
+# if VLC_GCC_VERSION(4, 4)
+# define VLC_MMX __attribute__ ((__target__ ("mmx")))
+# else
+# define VLC_MMX VLC_MMX_is_not_implemented_on_this_compiler
+# endif
+# endif
+
+# if defined (__SSE__)
+# define vlc_CPU_MMXEXT() (1)
+# define vlc_CPU_SSE() (1)
+# define VLC_SSE
+# else
+# define vlc_CPU_MMXEXT() ((vlc_CPU() & VLC_CPU_MMXEXT) != 0)
+# define vlc_CPU_SSE() ((vlc_CPU() & VLC_CPU_SSE) != 0)
+# if VLC_GCC_VERSION(4, 4)
+# define VLC_SSE __attribute__ ((__target__ ("sse")))
+# else
+# define VLC_SSE VLC_SSE_is_not_implemented_on_this_compiler
+# endif
+# endif
+
+# ifdef __SSE2__
+# define vlc_CPU_SSE2() (1)
+# else
+# define vlc_CPU_SSE2() ((vlc_CPU() & VLC_CPU_SSE2) != 0)
+# endif
+
+# ifdef __SSE3__
+# define vlc_CPU_SSE3() (1)
+# else
+# define vlc_CPU_SSE3() ((vlc_CPU() & VLC_CPU_SSE3) != 0)
+# endif
+
+# ifdef __SSSE3__
+# define vlc_CPU_SSSE3() (1)
+# else
+# define vlc_CPU_SSSE3() ((vlc_CPU() & VLC_CPU_SSSE3) != 0)
+# endif
+
+# ifdef __SSE4_1__
+# define vlc_CPU_SSE4_1() (1)
+# else
+# define vlc_CPU_SSE4_1() ((vlc_CPU() & VLC_CPU_SSE4_1) != 0)
+# endif
+
+# ifdef __SSE4_2__
+# define vlc_CPU_SSE4_2() (1)
+# else
+# define vlc_CPU_SSE4_2() ((vlc_CPU() & VLC_CPU_SSE4_2) != 0)
+# endif
+
+# ifdef __SSE4A__
+# define vlc_CPU_SSE4A() (1)
+# else
+# define vlc_CPU_SSE4A() ((vlc_CPU() & VLC_CPU_SSE4A) != 0)
+# endif
+
+# ifdef __AVX__
+# define vlc_CPU_AVX() (1)
+# else
+# define vlc_CPU_AVX() ((vlc_CPU() & VLC_CPU_AVX) != 0)
+# endif
+
+# ifdef __AVX2__
+# define vlc_CPU_AVX2() (1)
+# else
+# define vlc_CPU_AVX2() ((vlc_CPU() & VLC_CPU_AVX2) != 0)
+# endif
+
+# ifdef __3dNOW__
+# define vlc_CPU_3dNOW() (1)
+# else
+# define vlc_CPU_3dNOW() ((vlc_CPU() & VLC_CPU_3dNOW) != 0)
+# endif
+
+# ifdef __XOP__
+# define vlc_CPU_XOP() (1)
+# else
+# define vlc_CPU_XOP() ((vlc_CPU() & VLC_CPU_XOP) != 0)
+# endif
+
+# ifdef __FMA4__
+# define vlc_CPU_FMA4() (1)
+# else
+# define vlc_CPU_FMA4() ((vlc_CPU() & VLC_CPU_FMA4) != 0)
+# endif
+
+# elif defined (__ppc__) || defined (__ppc64__) || defined (__powerpc__)
+# define HAVE_FPU 1
+# define VLC_CPU_ALTIVEC 2
+
+# ifdef ALTIVEC
+# define vlc_CPU_ALTIVEC() (1)
+# else
+# define vlc_CPU_ALTIVEC() ((vlc_CPU() & VLC_CPU_ALTIVEC) != 0)
+# endif
+
+# elif defined (__arm__)
+# if defined (__VFP_FP__) && !defined (__SOFTFP__)
+# define HAVE_FPU 1
+# else
+# define HAVE_FPU 0
+# endif
+# define VLC_CPU_ARMv6 4
+# define VLC_CPU_ARM_NEON 2
+
+# if defined (__ARM_ARCH_7A__)
+# define VLC_CPU_ARM_ARCH 7
+# elif defined (__ARM_ARCH_6__) || defined (__ARM_ARCH_6T2__)
+# define VLC_CPU_ARM_ARCH 6
+# else
+# define VLC_CPU_ARM_ARCH 4
+# endif
+
+# if (VLC_CPU_ARM_ARCH >= 6)
+# define vlc_CPU_ARMv6() (1)
+# else
+# define vlc_CPU_ARMv6() ((vlc_CPU() & VLC_CPU_ARMv6) != 0)
+# endif
+
+# ifdef __ARM_NEON__
+# define vlc_CPU_ARM_NEON() (1)
+# else
+# define vlc_CPU_ARM_NEON() ((vlc_CPU() & VLC_CPU_ARM_NEON) != 0)
+# endif
+
+# elif defined (__sparc__)
+# define HAVE_FPU 1
+
+# else
+/**
+ * Are single precision floating point operations "fast"?
+ * If this preprocessor constant is zero, floating point should be avoided
+ * (especially relevant for audio codecs).
+ */
+# define HAVE_FPU 0
+
+# endif