* pointer-set.c (hash1): Don't use libm functions in fallback case.
From-SVN: r89231
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2004-10-18 Richard Henderson <rth@redhat.com>
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* pointer-set.c (hash1): Don't use libm functions in fallback case.
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2004-10-18 H.J. Lu <hongjiu.lu@intel.com>
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PR bootstrap/17684
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@ -61,11 +61,10 @@ hash1 (const void *p, unsigned long max, unsigned long logmax)
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#elif HOST_BITS_PER_LONG == 64
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const unsigned long A = 0x9e3779b97f4a7c16ul;
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#else
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const double M = (ULONG_MAX + 1.0);
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const double B = M / ((sqrt (5) - 1) / 2.0);
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const unsigned long A = B - (floor (B / M) * M);
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const unsigned long A
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= (ULONG_MAX + 1.0L) * 0.6180339887498948482045868343656381177203L;
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#endif
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const unsigned long shift = sizeof (unsigned long) * CHAR_BIT - logmax;
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const unsigned long shift = HOST_BITS_PER_LONG - logmax;
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return ((A * (unsigned long) p) >> shift) & (max - 1);
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}
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