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Re: lto testsuite may erase mathlib variable

From: Richard Biener <richard dot guenther at gmail dot com>
To: BELBACHIR Selim <selim dot belbachir at fr dot thalesgroup dot com>
Cc: "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>
Date: Mon, 13 Jan 2014 12:26:43 +0100
Subject: Re: lto testsuite may erase mathlib variable
Authentication-results: sourceware.org; auth=none
References: <3287_1388744324_52C68E84_3287_8457_1_9C88BF562A27AA41B242B2780441926E210CF9089D at THSONEA01CMS05P dot one dot grp>

On Fri, Jan 3, 2014 at 11:18 AM, BELBACHIR Selim
<selim.belbachir@fr.thalesgroup.com> wrote:
> Hi,
>
> I noticed a problem in gcc/testsuite/g++.dg/lto/lto.exp
>
> If the target does not support LTO (check_effective_target_lto) a brutal return is performed so the mathlib variable modified in lto_init will not be restored properly by lto_finish at the end of the script.
>
> Subsequent testsuites will found an empty mathlib.

Rather than this I modified it to match gcc.dg/lto/lto.exp which does
this init after the bailout.

Tested on x86_64-linux, applied.

Richard.

> Regards,
>
> Selim
>
>

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References:
- lto testsuite may erase mathlib variable
  - From: BELBACHIR Selim

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