[patch] fix an openacc reference-type reduction bug in PR70643

[Jakub Jelinek]

On Wed, Apr 13, 2016 at 03:56:22PM -0700, Cesar Philippidis wrote:
> Thomas noticed that one of the openacc fortran tests involving
> reductions inside fortran modules in gomp-4_0-branch had regressed after
> I backported the recent reduction changes I made to trunk. That failure
> occurred because lower_oacc_reductions wasn't considering that reduction
> initializers can be non-integral constants. This patch fixes that
> problem and adds a new runtime test case.
> 
> Is this patch ok for trunk? I tested it on x86_64-linux.
> 
> Cesar

> 2016-04-13  Cesar Philippidis  <cesar@codesourcery.com>
> 
> 	gcc/
> 	* omp-low.c (lower_oacc_reductions): Check for TREE_CONSTANT
> 	when building a mem ref for the incoming reduction variable.
> 
> 	libgomp/
> 	* testsuite/libgomp.oacc-fortran/pr70643.f90: New test.

Ok.

	Jakub