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[PATCH, SMS] Prevent the creation of reg-moves for n on allocatable definitionâs (re-submission)

From: Revital Eres <revital dot eres at linaro dot org>
To: Ayal Zaks <ayal dot zaks at gmail dot com>
Cc: richard sandiford <richard dot sandiford at linaro dot org>, gcc-patches at gcc dot gnu dot org, Patch Tracking <patches at linaro dot org>
Date: Wed, 21 Dec 2011 13:59:59 +0200
Subject: [PATCH, SMS] Prevent the creation of reg-moves for n on allocatable definitionâs (re-submission)

Hello,

Following Richard's comment
http://gcc.gnu.org/ml/gcc-patches/2011-12/msg01469.html attached is
a new version of the patch to prevent reg-moves for non allocatable definitions.

Currently testing and bootstrap on ppc64-redhat-linux, enabling SMS on
loops with SC 1.

OK for 4.7 once testing completes?

Thanks,
Revital

Changelog:

gcc/
        * ddg.c (def_non_allocatable_p): New function.
        (add_cross_iteration_register_deps): Call it.

testsuite/
         * gcc.dg/sms-11.c: New file.

Attachment: patch_allocatable_21_12.txt
Description: Text document

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