[PR c/71381] C/C++ OpenACC cache directive rejects valid syntax

	gcc/c/
	PR c/71381
	* c-parser.c (c_parser_omp_variable_list) <OMP_CLAUSE__CACHE_>:
	Loosen checking.
	gcc/cp/
	PR c/71381
	* parser.c (cp_parser_omp_var_list_no_open) <OMP_CLAUSE__CACHE_>:
	Loosen checking.
	gcc/fortran/
	PR c/71381
	* openmp.c (gfc_match_oacc_cache): Add comment.
	gcc/testsuite/
	PR c/71381
	* c-c++-common/goacc/cache-1.c: Update.  Move invalid usage tests
	to...
	* c-c++-common/goacc/cache-2.c: ... this new file.
	* gfortran.dg/goacc/cache-1.f95: Move invalid usage tests to...
	* gfortran.dg/goacc/cache-2.f95: ... this new file.
	* gfortran.dg/goacc/coarray.f95: Update OpenACC cache directive
	usage.
	* gfortran.dg/goacc/cray.f95: Likewise.
	* gfortran.dg/goacc/loop-1.f95: Likewise.
	libgomp/
	PR c/71381
	* testsuite/libgomp.oacc-c-c++-common/cache-1.c: #include
	"../../../gcc/testsuite/c-c++-common/goacc/cache-1.c".
	* testsuite/libgomp.oacc-fortran/cache-1.f95: New file.

	gcc/
	* omp-low.c (scan_sharing_clauses): Don't expect
	OMP_CLAUSE__CACHE_.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@237290 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 4 insertions, 0 deletions

diff --git a/gcc/fortran/openmp.c b/gcc/fortran/openmp.c
index 2689d302c77d..2c9279401a29 100644
--- a/gcc/fortran/openmp.c
+++ b/gcc/fortran/openmp.c
@@ -1688,6 +1688,10 @@ match
 gfc_match_oacc_cache (void)
 {
   gfc_omp_clauses *c = gfc_get_omp_clauses ();
+  /* The OpenACC cache directive explicitly only allows "array elements or
+     subarrays", which we're currently not checking here.  Either check this
+     after the call of gfc_match_omp_variable_list, or add something like a
+     only_sections variant next to its allow_sections parameter.  */
   match m = gfc_match_omp_variable_list (" (",
 					 &c->lists[OMP_LIST_CACHE], true,
 					 NULL, NULL, true);