OpenMP, Fortran: Handle errors in 'declare mapper' instantiation

The patch "OpenMP: Reprocess expanded clauses after 'declare mapper'
instantiation" added further error-checking to
gfc_omp_instantiate_mappers, which is called during the translation
phase of processing, but these errors were effectively ignored for
further processing of the code.  This patch makes the translation
phase insert an error_mark_node in these situations instead of
generating normal tree code.

This patch fixes an ICE in gfortran.dg/gomp/declare-mapper-29.f90
where it was attempting to gimplify code that had already been
diagnosed as invalid in the front end.

gcc/fortran/ChangeLog
	* gfortran.h (gfc_omp_instantiate_mappers): Adjust declaration
	to return an error status instead of void.
	* openmp.cc (gfc_gomp_instantiate_mappers): Likewise for the
	the definition.
	* trans-openmp.cc (gfc_trans_omp_target): Check return status of
	call to gfc_omp_instantiate_mappers and insert an error_mark_node
	on failure instead of continuing normal processing of the construct.
	(gfc_trans_omp_target_data): Likewise.
	(gfc_trans_omp_target_enter_data): Likewise.
	(gfc_trans_omp_target_exit_data): Likewise.

0 files changed, 0 insertions, 0 deletions