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Re: [PATCH 01/28] powerpc: Use generic fabs{f} implementations
- From: Joseph Myers <joseph at codesourcery dot com>
- To: Adhemerval Zanella <adhemerval dot zanella at linaro dot org>
- Cc: <libc-alpha at sourceware dot org>
- Date: Mon, 1 Apr 2019 20:04:57 +0000
- Subject: Re: [PATCH 01/28] powerpc: Use generic fabs{f} implementations
- References: <20190329133529.22523-1-adhemerval.zanella@linaro.org> <20190329133529.22523-2-adhemerval.zanella@linaro.org>
On Fri, 29 Mar 2019, Adhemerval Zanella wrote:
> Since be2e25bbd78f9fdf the generic ieee754 implementation uses
> compiler builtin which generates fabs{f} for all supported targets.
One reason for the existing version might be a microoptimization for code
size to make the float and double versions aliases, as permitted by the
ABIs and instruction set in this case. (This is not an objection to this
patch.)
--
Joseph S. Myers
joseph@codesourcery.com