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[patch, OpenACC] Fix reduction lowering segfault in omp-low

From: Chung-Lin Tang <cltang at codesourcery dot com>
To: gcc-patches <gcc-patches at gcc dot gnu dot org>, Jakub Jelinek <jakub at redhat dot com>
Cc: Cesar Philippidis <cesar_philippidis at mentor dot com>
Date: Mon, 15 Aug 2016 17:52:29 +0800
Subject: [patch, OpenACC] Fix reduction lowering segfault in omp-low
Authentication-results: sourceware.org; auth=none

Hi Jakub,
This patch fixes an OpenACC reduction lowering segfault which
triggers when nested acc loop directives are present.
Cesar has reviewed this patch internally (since he mostly wrote
the code originally)

Patch has been tested and committed to gomp-4_0-branch,
is this also okay for trunk?

Thanks,
Chung-Lin

2016-08-15  Chung-Lin Tang  <cltang@codesourcery.com>

        * omp-low.c (lower_oacc_reductions): Adjust variable lookup to use
        maybe_lookup_decl, to handle nested acc loop directives.

Attachment: omplow.diff
Description: Text document

Follow-Ups:
- Re: [patch, OpenACC] Fix reduction lowering segfault in omp-low
  - From: Jakub Jelinek

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