32 lines
975 B
C
32 lines
975 B
C
$OpenBSD: patch-globalconf_h,v 1.2 2010/09/14 08:51:24 dcoppa Exp $
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--- globalconf.h.orig Wed Aug 25 10:50:48 2010
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+++ globalconf.h Fri Sep 10 13:47:48 2010
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@@ -137,5 +137,27 @@ typedef struct
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extern awesome_t globalconf;
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+#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 0)
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+#define ALWAYS_INLINE __attribute__((always_inline)) inline
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+#else
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+#define ALWAYS_INLINE inline
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+#endif
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+
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+#if defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 3)
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+#define awesome_clz(x) __builtin_clz(x)
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+#else
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+static int ALWAYS_INLINE awesome_clz( uint32_t x )
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+{
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+ static uint8_t lut[16] = {4,3,2,2,1,1,1,1,0,0,0,0,0,0,0,0};
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+ int y, z = (((x >> 16) - 1) >> 27) & 16;
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+ x >>= z^16;
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+ z += y = ((x - 0x100) >> 28) & 8;
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+ x >>= y^8;
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+ z += y = ((x - 0x10) >> 29) & 4;
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+ x >>= y^4;
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+ return z + lut[x];
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+}
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+#endif
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+
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#endif
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// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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