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RE: [PATCH 2/3,ARM,libgcc]Code size optimization for the fmul/fdiv and dmul/ddiv function in libgcc
- From: "Tony Wang" <tony dot wang at arm dot com>
- To: <gcc-patches at gcc dot gnu dot org>
- Cc: "Richard Earnshaw" <Richard dot Earnshaw at arm dot com>, "Ramana Radhakrishnan" <Ramana dot Radhakrishnan at arm dot com>
- Date: Thu, 28 Aug 2014 14:01:55 +0800
- Subject: RE: [PATCH 2/3,ARM,libgcc]Code size optimization for the fmul/fdiv and dmul/ddiv function in libgcc
- Authentication-results: sourceware.org; auth=none
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> -----Original Message-----
> From: Tony Wang [mailto:tony.wang@arm.com]
> Sent: Thursday, August 21, 2014 2:15 PM
> To: 'gcc-patches@gcc.gnu.org'
> Subject: [PATCH 2/3,ARM,libgcc]Code size optimization for the fmul/fdiv and dmul/ddiv function in libgcc
>
> Step 2: Mark all the symbols around the fragment boundaries as function symbols, so as to generate veneer
> when the two section is too far away from each other. Also, I have both manually and using some test cases
to
> verify that IP and PSR are not alive at such point.
>
> gcc/libgcc/ChangeLog:
> 2014-8-21 Tony Wang <tony.wang@arm.com>
>
> * config/arm/ieee754-sf.S: Expose symbols around fragment boundaries as function symbols.
> * config/arm/ieee754-df.S: Same with above
>
> BR,
> Tony