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[PATCH, FORTRAN] Fix PR fortran/60718

From: Bernd Edlinger <bernd dot edlinger at hotmail dot de>
To: Tobias Burnus <tobias dot burnus at physik dot fu-berlin dot de>
Cc: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, "fortran at gcc dot gnu dot org" <fortran at gcc dot gnu dot org>
Date: Fri, 11 Apr 2014 08:39:57 +0200
Subject: [PATCH, FORTRAN] Fix PR fortran/60718
Authentication-results: sourceware.org; auth=none

Hi,

this patch fixes the last failed fortran test case on arm-linux-gnueabihf:
select_type_4.f90, which did always fail at -O2 and above.

It was caused by a strict aliasing violation, when passing a value of the type
"class(x),pointer" to a formal procedure parameter of the type "class(x),target".

The patch resolves this, by creating a temporary value of type "class(x),target"
which can be passed to the procedure without violating the strict aliasing rules.

Boot-strapped and regression-tested without any regressions
on x86_64-unknown-linux-gnu and arm-linux-gnueabihf.

OK for trunk?


Thanks
Bernd.

Attachment: changelog-pr60718.txt
Description: Text document

Attachment: patch-pr60718.diff
Description: Binary data

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