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mesa: Delete unused ICEIL().

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Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
This commit is contained in:
Matt Turner 2015-06-19 20:40:15 -07:00
parent a49328d58d
commit 04758d25b4
1 changed files with 0 additions and 32 deletions
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32
src/mesa/main/imports.h
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@ -230,38 +230,6 @@ static inline int IFLOOR(float f)
}
/** Return (as an integer) ceiling of float */
static inline int ICEIL(float f)
{
#if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__)
/*
* IEEE ceil for computers that round to nearest or even.
* 'f' must be between -4194304 and 4194303.
* This ceil operation is done by "(iround(f + .5) + iround(f - .5) + 1) >> 1",
* but uses some IEEE specific tricks for better speed.
* Contributed by Josh Vanderhoof
*/
int ai, bi;
double af, bf;
af = (3 << 22) + 0.5 + (double)f;
bf = (3 << 22) + 0.5 - (double)f;
/* GCC generates an extra fstp/fld without this. */
__asm__ ("fstps %0" : "=m" (ai) : "t" (af) : "st");
__asm__ ("fstps %0" : "=m" (bi) : "t" (bf) : "st");
return (ai - bi + 1) >> 1;
#else
int ai, bi;
double af, bf;
fi_type u;
af = (3 << 22) + 0.5 + (double)f;
bf = (3 << 22) + 0.5 - (double)f;
u.f = (float) af; ai = u.i;
u.f = (float) bf; bi = u.i;
return (ai - bi + 1) >> 1;
#endif
}
/**
* Is x a power of two?
*/