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Re: Regenerate x86 and x86_64 ulps
- From: "Joseph S. Myers" <joseph at codesourcery dot com>
- To: Jeroen <_jeroen_ at yahoo dot com>
- Cc: "libc-alpha at sourceware dot org" <libc-alpha at sourceware dot org>, Andi Kleen <andi at firstfloor dot org>
- Date: Wed, 3 Jul 2013 13:54:25 +0000
- Subject: Re: Regenerate x86 and x86_64 ulps
- References: <Pine dot LNX dot 4 dot 64 dot 1307022001020 dot 28677 at digraph dot polyomino dot org dot uk> <1372836611 dot 94370 dot YahooMailNeo at web124504 dot mail dot ne1 dot yahoo dot com>
On Wed, 3 Jul 2013, Jeroen wrote:
> Are compiler to allow extended instruction sets (SSE*,AVX) instructions
> allowed or even explicitly wanted in testing?
I'm not clear on the question. Compilers configured with a range of
different -march= settings and similar optimizations should all work for
building glibc so testing with them is useful, and testing on a range of
processors is also useful because of the multiarch variants of functions.
-mfpmath=sse on 32-bit x86 is riskier, however, and I don't know if glibc
built with it would work correctly.
--
Joseph S. Myers
joseph@codesourcery.com