/* Matching subroutines in all sizes, shapes and colors.
- Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
- Free Software Foundation, Inc.
+ Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+ 2010 Free Software Foundation, Inc.
Contributed by Andy Vaught
This file is part of GCC.
match ("cycle", gfc_match_cycle, ST_CYCLE)
match ("deallocate", gfc_match_deallocate, ST_DEALLOCATE)
match ("end file", gfc_match_endfile, ST_END_FILE)
+ match ("error stop", gfc_match_error_stop, ST_ERROR_STOP)
match ("exit", gfc_match_exit, ST_EXIT)
match ("flush", gfc_match_flush, ST_FLUSH)
match ("forall", match_simple_forall, ST_FORALL)
match ("rewind", gfc_match_rewind, ST_REWIND)
match ("stop", gfc_match_stop, ST_STOP)
match ("wait", gfc_match_wait, ST_WAIT)
+ match ("sync all", gfc_match_sync_all, ST_SYNC_CALL);
+ match ("sync images", gfc_match_sync_images, ST_SYNC_IMAGES);
+ match ("sync memory", gfc_match_sync_memory, ST_SYNC_MEMORY);
match ("where", match_simple_where, ST_WHERE)
match ("write", gfc_match_write, ST_WRITE)
}
+/* Match a CRITICAL statement. */
+match
+gfc_match_critical (void)
+{
+ gfc_st_label *label = NULL;
+
+ if (gfc_match_label () == MATCH_ERROR)
+ return MATCH_ERROR;
+
+ if (gfc_match (" critical") != MATCH_YES)
+ return MATCH_NO;
+
+ if (gfc_match_st_label (&label) == MATCH_ERROR)
+ return MATCH_ERROR;
+
+ if (gfc_match_eos () != MATCH_YES)
+ {
+ gfc_syntax_error (ST_CRITICAL);
+ return MATCH_ERROR;
+ }
+
+ if (gfc_pure (NULL))
+ {
+ gfc_error ("Image control statement CRITICAL at %C in PURE procedure");
+ return MATCH_ERROR;
+ }
+
+ if (gfc_notify_std (GFC_STD_F2008, "Fortran 2008: CRITICAL statement at %C")
+ == FAILURE)
+ return MATCH_ERROR;
+
+ if (gfc_option.coarray == GFC_FCOARRAY_NONE)
+ {
+ gfc_error ("Coarrays disabled at %C, use -fcoarray= to enable");
+ return MATCH_ERROR;
+ }
+
+ if (gfc_find_state (COMP_CRITICAL) == SUCCESS)
+ {
+ gfc_error ("Nested CRITICAL block at %C");
+ return MATCH_ERROR;
+ }
+
+ new_st.op = EXEC_CRITICAL;
+
+ if (label != NULL
+ && gfc_reference_st_label (label, ST_LABEL_TARGET) == FAILURE)
+ return MATCH_ERROR;
+
+ return MATCH_YES;
+}
+
+
/* Match a BLOCK statement. */
match
break;
else if (o == NULL && p->state == COMP_OMP_STRUCTURED_BLOCK)
o = p;
+ else if (p->state == COMP_CRITICAL)
+ {
+ gfc_error("%s statement at %C leaves CRITICAL construct",
+ gfc_ascii_statement (st));
+ return MATCH_ERROR;
+ }
if (p == NULL)
{
}
-/* Match a number or character constant after a STOP or PAUSE statement. */
+/* Match a number or character constant after an (ALL) STOP or PAUSE statement. */
static match
gfc_match_stopcode (gfc_statement st)
goto cleanup;
}
- new_st.op = st == ST_STOP ? EXEC_STOP : EXEC_PAUSE;
+ if (st == ST_STOP && gfc_find_state (COMP_CRITICAL) == SUCCESS)
+ {
+ gfc_error ("Image control statement STOP at %C in CRITICAL block");
+ return MATCH_ERROR;
+ }
+
+ switch (st)
+ {
+ case ST_STOP:
+ new_st.op = EXEC_STOP;
+ break;
+ case ST_ERROR_STOP:
+ new_st.op = EXEC_ERROR_STOP;
+ break;
+ case ST_PAUSE:
+ new_st.op = EXEC_PAUSE;
+ break;
+ default:
+ gcc_unreachable ();
+ }
+
new_st.expr1 = e;
new_st.ext.stop_code = stop_code;
}
+/* Match the ERROR STOP statement. */
+
+match
+gfc_match_error_stop (void)
+{
+ if (gfc_notify_std (GFC_STD_F2008, "Fortran 2008: ERROR STOP statement at %C")
+ == FAILURE)
+ return MATCH_ERROR;
+
+ return gfc_match_stopcode (ST_ERROR_STOP);
+}
+
+
+/* Match SYNC ALL/IMAGES/MEMORY statement. Syntax:
+ SYNC ALL [(sync-stat-list)]
+ SYNC MEMORY [(sync-stat-list)]
+ SYNC IMAGES (image-set [, sync-stat-list] )
+ with sync-stat is int-expr or *. */
+
+static match
+sync_statement (gfc_statement st)
+{
+ match m;
+ gfc_expr *tmp, *imageset, *stat, *errmsg;
+ bool saw_stat, saw_errmsg;
+
+ tmp = imageset = stat = errmsg = NULL;
+ saw_stat = saw_errmsg = false;
+
+ if (gfc_pure (NULL))
+ {
+ gfc_error ("Image control statement SYNC at %C in PURE procedure");
+ return MATCH_ERROR;
+ }
+
+ if (gfc_notify_std (GFC_STD_F2008, "Fortran 2008: SYNC statement at %C")
+ == FAILURE)
+ return MATCH_ERROR;
+
+ if (gfc_option.coarray == GFC_FCOARRAY_NONE)
+ {
+ gfc_error ("Coarrays disabled at %C, use -fcoarray= to enable");
+ return MATCH_ERROR;
+ }
+
+ if (gfc_find_state (COMP_CRITICAL) == SUCCESS)
+ {
+ gfc_error ("Image control statement SYNC at %C in CRITICAL block");
+ return MATCH_ERROR;
+ }
+
+ if (gfc_match_eos () == MATCH_YES)
+ {
+ if (st == ST_SYNC_IMAGES)
+ goto syntax;
+ goto done;
+ }
+
+ if (gfc_match_char ('(') != MATCH_YES)
+ goto syntax;
+
+ if (st == ST_SYNC_IMAGES)
+ {
+ /* Denote '*' as imageset == NULL. */
+ m = gfc_match_char ('*');
+ if (m == MATCH_ERROR)
+ goto syntax;
+ if (m == MATCH_NO)
+ {
+ if (gfc_match ("%e", &imageset) != MATCH_YES)
+ goto syntax;
+ }
+ m = gfc_match_char (',');
+ if (m == MATCH_ERROR)
+ goto syntax;
+ if (m == MATCH_NO)
+ {
+ m = gfc_match_char (')');
+ if (m == MATCH_YES)
+ goto done;
+ goto syntax;
+ }
+ }
+
+ for (;;)
+ {
+ m = gfc_match (" stat = %v", &tmp);
+ if (m == MATCH_ERROR)
+ goto syntax;
+ if (m == MATCH_YES)
+ {
+ if (saw_stat)
+ {
+ gfc_error ("Redundant STAT tag found at %L ", &tmp->where);
+ goto cleanup;
+ }
+ stat = tmp;
+ saw_stat = true;
+
+ if (gfc_match_char (',') == MATCH_YES)
+ continue;
+ }
+
+ m = gfc_match (" errmsg = %v", &tmp);
+ if (m == MATCH_ERROR)
+ goto syntax;
+ if (m == MATCH_YES)
+ {
+ if (saw_errmsg)
+ {
+ gfc_error ("Redundant ERRMSG tag found at %L ", &tmp->where);
+ goto cleanup;
+ }
+ errmsg = tmp;
+ saw_errmsg = true;
+
+ if (gfc_match_char (',') == MATCH_YES)
+ continue;
+ }
+
+ gfc_gobble_whitespace ();
+
+ if (gfc_peek_char () == ')')
+ break;
+
+ goto syntax;
+ }
+
+ if (gfc_match (" )%t") != MATCH_YES)
+ goto syntax;
+
+done:
+ switch (st)
+ {
+ case ST_SYNC_ALL:
+ new_st.op = EXEC_SYNC_ALL;
+ break;
+ case ST_SYNC_IMAGES:
+ new_st.op = EXEC_SYNC_IMAGES;
+ break;
+ case ST_SYNC_MEMORY:
+ new_st.op = EXEC_SYNC_MEMORY;
+ break;
+ default:
+ gcc_unreachable ();
+ }
+
+ new_st.expr1 = imageset;
+ new_st.expr2 = stat;
+ new_st.expr3 = errmsg;
+
+ return MATCH_YES;
+
+syntax:
+ gfc_syntax_error (st);
+
+cleanup:
+ gfc_free_expr (tmp);
+ gfc_free_expr (imageset);
+ gfc_free_expr (stat);
+ gfc_free_expr (errmsg);
+
+ return MATCH_ERROR;
+}
+
+
+/* Match SYNC ALL statement. */
+
+match
+gfc_match_sync_all (void)
+{
+ return sync_statement (ST_SYNC_ALL);
+}
+
+
+/* Match SYNC IMAGES statement. */
+
+match
+gfc_match_sync_images (void)
+{
+ return sync_statement (ST_SYNC_IMAGES);
+}
+
+
+/* Match SYNC MEMORY statement. */
+
+match
+gfc_match_sync_memory (void)
+{
+ return sync_statement (ST_SYNC_MEMORY);
+}
+
+
/* Match a CONTINUE statement. */
match
gfc_compile_state s;
e = NULL;
+
+ if (gfc_find_state (COMP_CRITICAL) == SUCCESS)
+ {
+ gfc_error ("Image control statement RETURN at %C in CRITICAL block");
+ return MATCH_ERROR;
+ }
+
if (gfc_match_eos () == MATCH_YES)
goto done;
/* Deal with an optional array specification after the
symbol name. */
- m = gfc_match_array_spec (&as);
+ m = gfc_match_array_spec (&as, true, true);
if (m == MATCH_ERROR)
goto cleanup;
OSDN Git Service
