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*From*: "Joseph S. Myers" <joseph at codesourcery dot com>*To*: David Miller <davem at davemloft dot net>*Cc*: rguenther at suse dot de, aj at suse dot de, libc-alpha at sources dot redhat dot com*Date*: Mon, 7 May 2012 19:15:46 +0000 (UTC)*Subject*: Re: [PATCH] Use -frounding-math for math testsuite*References*: <Pine.LNX.4.64.1205021653080.23071@jbgna.fhfr.qr><Pine.LNX.4.64.1205051731200.3843@digraph.polyomino.org.uk><Pine.LNX.4.64.1205071055020.23071@jbgna.fhfr.qr><20120507.122135.75409043316541951.davem@davemloft.net>

On Mon, 7 May 2012, David Miller wrote: > Unfortunately, this change causes all kinds of math test failures on sparc. > For example, see math/test-double.out below. The change to build some tests with -frounding-math, or the change to build all of glibc with it? > I think we should revert this until we can sort it out, especially since > I anticipate that it will take quite some time to do so. If it's the change to build all of libc with -frounding-math, maybe adding something to a SPARC makefile to build just one lgamma source file with -fno-rounding-math would work around the problem until you can work out where the problem really lies (likely a compiler bug)? All these tests relate to lgamma (gamma is a alias of lgamma) or tgamma (which works by exp (lgamma)) so it looks rather like only one source file is involved. -- Joseph S. Myers joseph@codesourcery.com

**Follow-Ups**:**Re: [PATCH] Use -frounding-math for math testsuite***From:*David Miller

**Re: [PATCH] Use -frounding-math for math testsuite***From:*Andreas Jaeger

**References**:**Re: [PATCH] Use -frounding-math for math testsuite***From:*Richard Guenther

**Re: [PATCH] Use -frounding-math for math testsuite***From:*Joseph S. Myers

**Re: [PATCH] Use -frounding-math for math testsuite***From:*Richard Guenther

**Re: [PATCH] Use -frounding-math for math testsuite***From:*David Miller

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