mirror of https://github.com/OpenTTD/OpenTTD.git
(svn r14232) -Codechange: use builtin for byte swapping for gcc >= 4.3
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@ -318,7 +318,12 @@ static FORCEINLINE T ROR(const T x, const uint8 n)
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*/
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static FORCEINLINE uint32 BSWAP32(uint32 x)
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{
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#if defined(__GNUC__) && ((__GNUC__ > 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ >= 3))
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/* GCC >= 4.3 provides a builtin, resulting in faster code */
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return (uint32)__builtin_bswap32((int32)x);
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#else
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return ((x >> 24) & 0xFF) | ((x >> 8) & 0xFF00) | ((x << 8) & 0xFF0000) | ((x << 24) & 0xFF000000);
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#endif /* defined(__GNUC__) */
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}
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/**
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