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Re: [gomp] Fix a couple of global var handling bugs, add firstprivate+lastprivate barrier (PR c++/26943)


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Jakub Jelinek wrote:

> 	PR c++/26943
> 	* omp-low.c (build_outer_var_ref): Use lookup_decl_in_outer_ctx
> 	to find if var will be a global variable even in the nested context.
> 	(omp_copy_decl): Only check for global variable at the end, it might
> 	be overridden in outer contexts.
> 	(scan_sharing_clauses): For global variables in non-nested contexts
> 	don't create a field.
> 	(lower_rec_input_clauses): Do nothing for global shared variables.
> 	Emit a barrier at the end of ILIST if there were any decls in both
> 	firstprivate and lastprivate clauses.
> 	(lower_send_clauses): Do nothing for global variables except for
> 	COPYIN.
> 
> 	* testsuite/libgomp.c/pr26943-1.c: New test.
> 	* testsuite/libgomp.c/pr26943-2.c: New test.
> 	* testsuite/libgomp.c/pr26943-3.c: New test.
> 	* testsuite/libgomp.c/pr26943-4.c: New test.
> 	* testsuite/libgomp.c++/pr27337.C: Remove barrier.
> 	* testsuite/libgomp.c++/pr26943.C: New test.
> 
OK.
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