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**To**:**port-mips-maintainer%NetBSD.org@localhost****Subject**:**Re: toolchain/45310: some mixed int/float computations are wrong on mips64****From**:**Manuel Bouyer <bouyer%antioche.eu.org@localhost>**- Date: Wed, 31 Aug 2011 15:47:57 +0200

On Wed, Aug 31, 2011 at 01:30:06PM +0000, Manuel Bouyer wrote: > tracking this down, I ended up in fixunsgen_ieee754.c:__fixunsgen32. > It's called with > exp=5, sign=0, mant_dig=53, fracbits=20, frac={0, 0, 32768} > > as exp - mant_dig is larger than 32, __fixunsgen32 returns 0. > mant_dig is a constant from mips/float.h; I've no idea if it's right or > wrong here ... It's DBL_MANT_DIG which is __DBL_MANT_DIG__ which is a gcc constant; it seems to be the same for o32 ABI. I also tested this on i386, and I get the exact same result. So my guess would be that __fixunsgen32() is buggy ... -- Manuel Bouyer <bouyer%antioche.eu.org@localhost> NetBSD: 26 ans d'experience feront toujours la difference --

**References**:**Re: toolchain/45310: some mixed int/float computations are wrong on mips64***From:*Manuel Bouyer

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