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Re: [PATCH] PR49720, infinite recursion in RTX simplification
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: Eric Botcazou <ebotcazou at adacore dot com>
- Cc: Chung-Lin Tang <cltang at codesourcery dot com>, gcc-patches at gcc dot gnu dot org
- Date: Thu, 15 Dec 2011 14:00:08 -0800
- Subject: Re: [PATCH] PR49720, infinite recursion in RTX simplification
- References: <4EA8FA03.10805@codesourcery.com> <201110280039.43392.ebotcazou@adacore.com>
On Thu, Oct 27, 2011 at 3:39 PM, Eric Botcazou <ebotcazou@adacore.com> wrote:
>> 2011-10-27 ?Chung-Lin Tang ?<cltang@codesourcery.com>
>>
>> ? ? ? PR rtl-optimization/49720
>> ? ? ? * simplify-rtx.c (simplify_relational_operation_1): Detect
>> ? ? ? infinite recursion condition in "(eq/ne (plus x cst1) cst2)
>> ? ? ? simplifies to (eq/ne x (cst2 - cst1))" case.
>>
>> ? ? ? testsuite/
>> ? ? ? * g++.dg/torture/pr49720.C: New test.
>
> OK, thanks.
>
This also fails on 4.6 branch. Can we move it to 4.6 branch?
Thanks.
--
H.J.