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Re: [patch, fortran] Fix PR 86837, wrong code regression in implied do loop in i/o

From: Jerry DeLisle <jvdelisle at charter dot net>
To: Thomas König <tk at tkoenig dot net>, "fortran at gcc dot gnu dot org" <fortran at gcc dot gnu dot org>, gcc-patches <gcc-patches at gcc dot gnu dot org>
Date: Thu, 23 Aug 2018 19:35:46 -0700
Subject: Re: [patch, fortran] Fix PR 86837, wrong code regression in implied do loop in i/o
References: <a03e716b-ca9e-ff45-c49f-327c31c2f093@tkoenig.net>

On 08/23/2018 01:12 PM, Thomas König wrote:

Hello world,

this patch fixes a regression by correctly checking that
the innner start, step or end values of an implied do
loop do not depend on an outer loop variable.

The check was actually done before, but gfc_check_dependency
wasn't finding all relevant cases.

Regression-tested. OK for trunk and 8.x?

Regards

     Thomas


Very OK Thomas.

Thanks for patch.

Jerry

References:
- [patch, fortran] Fix PR 86837, wrong code regression in implied do loop in i/o
  - From: Thomas König

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