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Re: [PATCH, testsuite] Fix for PR47440 - Use LCM for vzeroupper insertion
- From: Steven Bosscher <stevenb dot gcc at gmail dot com>
- To: Владимир Яковлев <vbyakovl23 at gmail dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Tue, 19 Jul 2011 17:21:33 +0200
- Subject: Re: [PATCH, testsuite] Fix for PR47440 - Use LCM for vzeroupper insertion
- References: <CAK1BsWo2MB6sBv+eggmj8064VK6J-e6EO5iu+1FkDo5_k41_rg@mail.gmail.com> <CAK1BsWptYKoFOOdKivA2Emd6LD0bfzaPOC1n0XwXHxoD7x_u3g@mail.gmail.com>
> ? ? ? ?* a/gcc/gcse.c (alloc_gcse_mem): Added code to run in PRE2.
And this is necessary because...???
Why not just make it a separate pass in ix86-reorg that uses LCM? Look
at mode switching for an example.
Ciao!
Steven