[PATCH] Fix PR78363

[Jakub Jelinek]

On Wed, Jan 25, 2017 at 09:52:41AM +0100, Richard Biener wrote:
> 2017-01-25  Richard Biener  <rguenther@suse.de>
> 
> 	PR debug/78363
> 	* omp-expand.c: Include debug.h.
> 	(expand_omp_taskreg): Make sure to generate early debug before
> 	outlining anything from a function.
> 	(expand_omp_target): Likewise.
> 	(grid_expand_target_grid_body): Likewise.
> 
> 	* g++.dg/gomp/pr78363-1.C: New testcase.
> 	* g++.dg/gomp/pr78363-2.C: Likewise.
> 	* g++.dg/gomp/pr78363-3.C: Likewise.

Ok, with minor nit:

> --- gcc/testsuite/g++.dg/gomp/pr78363-1.C	(nonexistent)
> +++ gcc/testsuite/g++.dg/gomp/pr78363-1.C	(working copy)
> @@ -0,0 +1,14 @@
> +// { dg-do compile }
> +// { dg-require-effective-target c++11 }
> +// { dg-options "-g -fopenmp" }
> +
> +int main()
> +{
> +  int n = 0;
> +
> +#pragma omp parallel for reduction (+: n)
> +  for (int i = [](){ return 3; }(); i < 10; ++i)
> +    n++;
> +
> +  return n;
> +}
> Index: gcc/testsuite/g++.dg/gomp/pr78363-2.C
> ===================================================================
> --- gcc/testsuite/g++.dg/gomp/pr78363-2.C	(nonexistent)
> +++ gcc/testsuite/g++.dg/gomp/pr78363-2.C	(working copy)
> @@ -0,0 +1,15 @@
> +// { dg-do compile }
> +// { dg-require-effective-target c++11 }
> +// { dg-options "-g -fopenmp" }

Please replace dg-options with:
// { dg-additional-options "-g" }
-fopenmp -Wno-hsa is the default, while dg-options of -g -fopenmp
overrides that and -Wno-hsa would be lost.  While it doesn't matter
in the first and last testcase (no offloading in those), on this one
I bet -Whsa (on by default) will warn if gcc is configured with hsa
offloading, because it is not gridifiable.

> +
> +int main()
> +{
> +  int n = 0;
> +#pragma omp target map(tofrom:n)
> +#pragma omp for reduction (+: n)
> +  for (int i = [](){ return 3; }(); i < 10; ++i)
> +    n++;
> +  if (n != 7)
> +    __builtin_abort ();
> +  return 0;
> +}
> Index: gcc/testsuite/g++.dg/gomp/pr78363-3.C
> ===================================================================
> --- gcc/testsuite/g++.dg/gomp/pr78363-3.C	(nonexistent)
> +++ gcc/testsuite/g++.dg/gomp/pr78363-3.C	(working copy)
> @@ -0,0 +1,14 @@
> +// { dg-do compile }
> +// { dg-require-effective-target c++11 }
> +// { dg-options "-g -fopenmp" }
> +
> +int main()
> +{
> +  int n = 0;
> +#pragma omp task shared (n)
> +  for (int i = [](){ return 3; }(); i < 10; ++i)
> +    n = i;
> +#pragma omp taskwait
> +  if (n != 7)
> +    __builtin_abort ();
> +}

	Jakub