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Re: [SPARC] Enable REE at -O2 by default in 64-bit mode
- From: Eric Botcazou <ebotcazou at adacore dot com>
- To: Jeff Law <law at redhat dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Thu, 24 Nov 2016 17:06:34 +0100
- Subject: Re: [SPARC] Enable REE at -O2 by default in 64-bit mode
- Authentication-results: sourceware.org; auth=none
- References: <2089802.4AkFIGpqyi@polaris> <46157d17-25a2-247c-9a6e-85cdeeecb028@redhat.com>
> With the fixes you've just done it's probably a lot more feasible to
> experiment with REE on other risc targets.
I didn't experiment much, but I saw no effects at all in 32-bit mode, only in
64-bit mode. That being said, SPARC is one of the very few RISC targets that
do _not_ define PROMOTE_MODE, this could be an explanation.
--
Eric Botcazou