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Re: -ffast-math and floating point reordering
- From: law at redhat dot com
- To: Richard Guenther <rguenth at tat dot physik dot uni-tuebingen dot de>
- Cc: Diego Novillo <dnovillo at redhat dot com>, Joe Buck <Joe dot Buck at synopsys dot com>, "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>
- Date: Fri, 26 Mar 2004 11:37:42 -0700
- Subject: Re: -ffast-math and floating point reordering
- Reply-to: law at redhat dot com
In message <4064721A.6060905@tat.physik.uni-tuebingen.de>, Richard Guenther wri
tes:
>> Yeah. We sort of discussed adding additional PLUS_EXPR operands and/or
>> attributes at last year's summit. But I think that was the extent of
>> it. IIRC, there was beer involved, so I doubt anybody was taking notes.
>
>Hmm, this is usually the point where we get the LLVM people tell us what
>they are doing here... I consider not being able to do something about
>this in tree-ssa a major defect, too.
Well, given that the front-ends don't even provide this information at this
time, I don't consider it a defect. I consider it a long term enhancement
we need to add first to the front-ends, then to the SSA bits.
jeff