[COMMITTED] a68: fix error handling in top-down parser

[Jose E. Marchesi]

Signed-off-by: Jose E. Marchesi <jema...@gnu.org>

gcc/algol68/ChangeLog

        * a68-parser-top-down.cc (a68_top_down_parser): Stop parsing after
        longjump.

gcc/testsuite/ChangeLog

        * algol68/compile/error-loop-1.a68: New test.
---
 gcc/algol68/a68-parser-top-down.cc             | 8 ++++----
 gcc/testsuite/algol68/compile/error-loop-1.a68 | 1 +
 2 files changed, 5 insertions(+), 4 deletions(-)
 create mode 100644 gcc/testsuite/algol68/compile/error-loop-1.a68

diff --git a/gcc/algol68/a68-parser-top-down.cc 
b/gcc/algol68/a68-parser-top-down.cc
index e4a3bf8c854..4a79e58217a 100644
--- a/gcc/algol68/a68-parser-top-down.cc
+++ b/gcc/algol68/a68-parser-top-down.cc
@@ -891,9 +891,9 @@ a68_top_down_parser (NODE_T *p)
        (void) top_down_prelude_packet (p);
       else
        (void) top_down_particular_program (p);
-    }
 
-  top_down_loops (p);
-  top_down_formats (p);
-  top_down_access (p);
+      top_down_loops (p);
+      top_down_formats (p);
+      top_down_access (p);
+    }
 }
diff --git a/gcc/testsuite/algol68/compile/error-loop-1.a68 
b/gcc/testsuite/algol68/compile/error-loop-1.a68
new file mode 100644
index 00000000000..bc3b2e2ad70
--- /dev/null
+++ b/gcc/testsuite/algol68/compile/error-loop-1.a68
@@ -0,0 +1 @@
+from i from 1 to 10 do skip od { dg-error "" }
-- 
2.30.2