Fortran/OpenMP: Add omp loop [PR99928]

	PR middle-end/99928

gcc/fortran/ChangeLog:

	* dump-parse-tree.c (show_omp_clauses): Handle bind clause.
	(show_omp_node): Handle loop directive.
	* frontend-passes.c (gfc_code_walker): Likewise.
	* gfortran.h (enum gfc_statement): Add
	ST_OMP_(END_)(TARGET_)(|PARALLEL_|TEAMS_)LOOP.
	(enum gfc_omp_bind_type): New.
	(gfc_omp_clauses): Use it.
	(enum gfc_exec_op): Add EXEC_OMP_(TARGET_)(|PARALLEL_|TEAMS_)LOOP.
	* match.h (gfc_match_omp_loop, gfc_match_omp_parallel_loop,
	gfc_match_omp_target_parallel_loop, gfc_match_omp_target_teams_loop,
	gfc_match_omp_teams_loop): New.
	* openmp.c (enum omp_mask1): Add OMP_CLAUSE_BIND.
	(gfc_match_omp_clauses): Handle it.
	(OMP_LOOP_CLAUSES, gfc_match_omp_loop, gfc_match_omp_teams_loop,
	gfc_match_omp_target_teams_loop, gfc_match_omp_parallel_loop,
	gfc_match_omp_target_parallel_loop): New.
	(resolve_omp_clauses, resolve_omp_do, omp_code_to_statement,
	gfc_resolve_omp_directive): Handle omp loop.
	* parse.c (decode_omp_directive case_exec_markers, gfc_ascii_statement,
	parse_omp_do, parse_executable): Likewise.
	(parse_omp_structured_block): Remove ST_ which use parse_omp_do.
	* resolve.c (gfc_resolve_blocks): Add omp loop.
	* st.c (gfc_free_statement): Likewise.
	* trans-openmp.c (gfc_trans_omp_clauses): Handle bind clause.
	(gfc_trans_omp_do, gfc_trans_omp_parallel_do, gfc_trans_omp_distribute,
	gfc_trans_omp_teams, gfc_trans_omp_target, gfc_trans_omp_directive):
	Handle loop directive.
	(gfc_split_omp_clauses): Likewise; fix firstprivate/lastprivate
	and (in_)reduction for taskloop.
	* trans.c (trans_code): Handle omp loop directive.

gcc/testsuite/ChangeLog:

	* gfortran.dg/gomp/pr99928-3.f90: Add 'default(none)', following
	C/C++ version of the patch.
	* gfortran.dg/gomp/loop-1.f90: New test.
	* gfortran.dg/gomp/loop-2.f90: New test.
	* gfortran.dg/gomp/pr99928-1.f90: New test; based on C/C++ test.
	* gfortran.dg/gomp/pr99928-11.f90: Likewise.
	* gfortran.dg/gomp/pr99928-2.f90: Likewise.
	* gfortran.dg/gomp/pr99928-4.f90: Likewise.
	* gfortran.dg/gomp/pr99928-5.f90: Likewise.
	* gfortran.dg/gomp/pr99928-6.f90: Likewise.
	* gfortran.dg/gomp/pr99928-8.f90: Likewise.
	* gfortran.dg/goacc/omp.f95: Use 'acc kernels loops' instead
	of 'acc loops' to hide unrelated bug for now.
	* gfortran.dg/goacc/omp-fixed.f: Likewise

1 files changed, 23 insertions, 0 deletions

diff --git a/gcc/fortran/dump-parse-tree.c b/gcc/fortran/dump-parse-tree.c
index 0e7fe1c..8e2df73 100644
--- a/gcc/fortran/dump-parse-tree.c
+++ b/gcc/fortran/dump-parse-tree.c
@@ -1718,6 +1718,19 @@ show_omp_clauses (gfc_omp_clauses *omp_clauses)
 	}
       fprintf (dumpfile, " PROC_BIND(%s)", type);
     }
+  if (omp_clauses->bind != OMP_BIND_UNSET)
+    {
+      const char *type;
+      switch (omp_clauses->bind)
+	{
+	case OMP_BIND_TEAMS: type = "TEAMS"; break;
+	case OMP_BIND_PARALLEL: type = "PARALLEL"; break;
+	case OMP_BIND_THREAD: type = "THREAD"; break;
+	default:
+	  gcc_unreachable ();
+	}
+      fprintf (dumpfile, " BIND(%s)", type);
+    }
   if (omp_clauses->num_teams)
     {
       fputs (" NUM_TEAMS(", dumpfile);
@@ -1896,6 +1909,7 @@ show_omp_node (int level, gfc_code *c)
     case EXEC_OMP_DISTRIBUTE_SIMD: name = "DISTRIBUTE SIMD"; break;
     case EXEC_OMP_DO: name = "DO"; break;
     case EXEC_OMP_DO_SIMD: name = "DO SIMD"; break;
+    case EXEC_OMP_LOOP: name = "LOOP"; break;
     case EXEC_OMP_FLUSH: name = "FLUSH"; break;
     case EXEC_OMP_MASTER: name = "MASTER"; break;
     case EXEC_OMP_MASTER_TASKLOOP: name = "MASTER TASKLOOP"; break;
@@ -1905,6 +1919,7 @@ show_omp_node (int level, gfc_code *c)
     case EXEC_OMP_PARALLEL: name = "PARALLEL"; break;
     case EXEC_OMP_PARALLEL_DO: name = "PARALLEL DO"; break;
     case EXEC_OMP_PARALLEL_DO_SIMD: name = "PARALLEL DO SIMD"; break;
+    case EXEC_OMP_PARALLEL_LOOP: name = "PARALLEL LOOP"; break;
     case EXEC_OMP_PARALLEL_MASTER: name = "PARALLEL MASTER"; break;
     case EXEC_OMP_PARALLEL_MASTER_TASKLOOP:
       name = "PARALLEL MASTER TASKLOOP"; break;
@@ -1924,6 +1939,7 @@ show_omp_node (int level, gfc_code *c)
     case EXEC_OMP_TARGET_PARALLEL_DO: name = "TARGET PARALLEL DO"; break;
     case EXEC_OMP_TARGET_PARALLEL_DO_SIMD:
       name = "TARGET_PARALLEL_DO_SIMD"; break;
+    case EXEC_OMP_TARGET_PARALLEL_LOOP: name = "TARGET PARALLEL LOOP"; break;
     case EXEC_OMP_TARGET_SIMD: name = "TARGET SIMD"; break;
     case EXEC_OMP_TARGET_TEAMS: name = "TARGET TEAMS"; break;
     case EXEC_OMP_TARGET_TEAMS_DISTRIBUTE:
@@ -1934,6 +1950,7 @@ show_omp_node (int level, gfc_code *c)
       name = "TARGET TEAMS DISTRIBUTE PARALLEL DO SIMD"; break;
     case EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD:
       name = "TARGET TEAMS DISTRIBUTE SIMD"; break;
+    case EXEC_OMP_TARGET_TEAMS_LOOP: name = "TARGET TEAMS LOOP"; break;
     case EXEC_OMP_TARGET_UPDATE: name = "TARGET UPDATE"; break;
     case EXEC_OMP_TASK: name = "TASK"; break;
     case EXEC_OMP_TASKGROUP: name = "TASKGROUP"; break;
@@ -1948,6 +1965,7 @@ show_omp_node (int level, gfc_code *c)
     case EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD:
       name = "TEAMS DISTRIBUTE PARALLEL DO SIMD"; break;
     case EXEC_OMP_TEAMS_DISTRIBUTE_SIMD: name = "TEAMS DISTRIBUTE SIMD"; break;
+    case EXEC_OMP_TEAMS_LOOP: name = "TEAMS LOOP"; break;
     case EXEC_OMP_WORKSHARE: name = "WORKSHARE"; break;
     default:
       gcc_unreachable ();
@@ -1977,10 +1995,12 @@ show_omp_node (int level, gfc_code *c)
     case EXEC_OMP_DISTRIBUTE_SIMD:
     case EXEC_OMP_DO:
     case EXEC_OMP_DO_SIMD:
+    case EXEC_OMP_LOOP:
     case EXEC_OMP_ORDERED:
     case EXEC_OMP_PARALLEL:
     case EXEC_OMP_PARALLEL_DO:
     case EXEC_OMP_PARALLEL_DO_SIMD:
+    case EXEC_OMP_PARALLEL_LOOP:
     case EXEC_OMP_PARALLEL_MASTER:
     case EXEC_OMP_PARALLEL_MASTER_TASKLOOP:
     case EXEC_OMP_PARALLEL_MASTER_TASKLOOP_SIMD:
@@ -1997,12 +2017,14 @@ show_omp_node (int level, gfc_code *c)
     case EXEC_OMP_TARGET_PARALLEL:
     case EXEC_OMP_TARGET_PARALLEL_DO:
     case EXEC_OMP_TARGET_PARALLEL_DO_SIMD:
+    case EXEC_OMP_TARGET_PARALLEL_LOOP:
     case EXEC_OMP_TARGET_SIMD:
     case EXEC_OMP_TARGET_TEAMS:
     case EXEC_OMP_TARGET_TEAMS_DISTRIBUTE:
     case EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO:
     case EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD:
     case EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD:
+    case EXEC_OMP_TARGET_TEAMS_LOOP:
     case EXEC_OMP_TARGET_UPDATE:
     case EXEC_OMP_TASK:
     case EXEC_OMP_TASKLOOP:
@@ -2012,6 +2034,7 @@ show_omp_node (int level, gfc_code *c)
     case EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO:
     case EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD:
     case EXEC_OMP_TEAMS_DISTRIBUTE_SIMD:
+    case EXEC_OMP_TEAMS_LOOP:
     case EXEC_OMP_WORKSHARE:
       omp_clauses = c->ext.omp_clauses;
       break;