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Re: [DOC Patch] Add sample for @cc constraint

From: Bernd Schmidt <bschmidt at redhat dot com>
To: David Wohlferd <dw at LimeGreenSocks dot com>
Cc: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, Richard Henderson <rth at redhat dot com>, Sandra Loosemore <sandra at codesourcery dot com>
Date: Tue, 12 Apr 2016 15:06:10 +0200
Subject: Re: [DOC Patch] Add sample for @cc constraint
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References: <56E4E5D6 dot 4030500 at LimeGreenSocks dot com> <56F40103 dot 8080600 at redhat dot com> <56F85899 dot 4010201 at LimeGreenSocks dot com> <56FA6B82 dot 9080308 at redhat dot com> <56FF06A7 dot 8040900 at LimeGreenSocks dot com> <570C29F9 dot 5080305 at LimeGreenSocks dot com>

On 04/12/2016 12:49 AM, David Wohlferd wrote:

First draft is attached.  It tests all 28 (14 conditions plus 14
inverted).  I wasn't sure what to set for optimization (O2? O3? O0?),
so I left the default.

I've had it in a successful test run, and committed it with a minortweak (__builtin_abort vs return 1).

As for the docs, I think you are unnecessarily worried about things thatare never going to be a problem in practice.



Bernd

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