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Re: Initial shrink-wrapping patch
- From: Richard Henderson <rth at redhat dot com>
- To: Bernd Schmidt <bernds at codesourcery dot com>
- Cc: Richard Guenther <richard dot guenther at gmail dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>, richard dot sandiford at linaro dot org
- Date: Wed, 05 Oct 2011 09:21:14 -0700
- Subject: Re: Initial shrink-wrapping patch
- References: <4E5E7342.9050103@codesourcery.com> <g462lcbc22.fsf@richards-thinkpad.stglab.manchester.uk.ibm.com> <4E6E9857.50600@t-online.de> <g4ehzklu0r.fsf@richards-thinkpad.stglab.manchester.uk.ibm.com> <4E6F37D9.9000108@t-online.de> <g4pqj4k702.fsf@richards-thinkpad.stglab.manchester.uk.ibm.com> <4E6F4B90.2050408@codesourcery.com> <g4hb4gk2xa.fsf@richards-thinkpad.stglab.manchester.uk.ibm.com> <4E6F786E.6080407@codesourcery.com> <4E712FD6.5030109@redhat.com> <4E8239ED.9020004@codesourcery.com> <4E85F395.3030006@redhat.com> <4E8B8469.2090605@codesourcery.com> <4E8B88E7.3090107@redhat.com> <CAFiYyc2VePBTofTZ+N6Ck_fpzgXdz7N8zncbtgX2OGnW87_7uA@mail.gmail.com> <4E8C7ED0.3090705@codesourcery.com>
On 10/05/2011 08:59 AM, Bernd Schmidt wrote:
> Bootstrapping the following now. Ok? (Alternatively, could keep the
> redzone logic, but make it depend on !flag_shrink_wrap).
It's a good space-saving optimization, that redzone logic. We
should be able to keep it based on crtl->shrink_wrapped; that
does appear to get set before we actually emit the epilogue.
r~