This is the mail archive of the libc-alpha@sourceware.org mailing list for the glibc project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [PATCH 01/28] powerpc: Use generic fabs{f} implementations


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


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]