--- /dev/null
+! RUN: %python %S/test_errors.py %s %flang_fc1
+! XFAIL: *
+! This test checks for semantic errors in sync all statements based on the
+! statement specification in section 11.6.3 of the Fortran 2018 standard.
+
+program test_sync_all
+ implicit none
+
+ integer sync_status, co_indexed_integer[*], superfluous_stat, non_scalar(1)
+ character(len=128) error_message, co_indexed_character[*], superfluous_errmsg
+ logical invalid_type
+
+ !___ standard-conforming statement ___
+
+ sync all
+ sync all(stat=sync_status)
+ sync all( errmsg=error_message)
+ sync all(stat=sync_status, errmsg=error_message)
+
+ !___ non-standard-conforming statement ___
+
+ !______ invalid sync-stat-lists: invalid stat= ____________
+
+ !ERROR: expected execution part construct
+ sync all(status=sync_status)
+
+ ! Stat-variable must an integer scalar
+ !ERROR: TBD
+ sync all(stat=invalid_type)
+
+ ! Stat-variable must an integer scalar
+ !ERROR: TBD
+ sync all(stat=non_scalar)
+
+ ! Invalid sync-stat-list: missing stat-variable
+ !ERROR: expected execution part construct
+ sync all(stat)
+
+ ! Invalid sync-stat-list: missing 'stat='
+ !ERROR: expected execution part construct
+ sync all(sync_status)
+
+ !______ invalid sync-stat-lists: invalid errmsg= ____________
+
+ ! Invalid errmsg-variable keyword
+ !ERROR: expected execution part construct
+ sync all(errormsg=error_message)
+
+ !ERROR: TBD
+ sync all(errmsg=invalid_type)
+
+ ! Invalid sync-stat-list: missing 'errmsg='
+ !ERROR: expected execution part construct
+ sync all(error_message)
+
+ ! Invalid sync-stat-list: missing errmsg-variable
+ !ERROR: expected execution part construct
+ sync all(errmsg)
+
+ !______ invalid sync-stat-lists: redundant sync-stat-list ____________
+
+ ! No specifier shall appear more than once in a given sync-stat-list
+ !ERROR: to be determined
+ sync all(stat=sync_status, stat=superfluous_stat)
+
+ ! No specifier shall appear more than once in a given sync-stat-list
+ !ERROR: to be determined
+ sync all(errmsg=error_message, errmsg=superfluous_errmsg)
+
+ !______ invalid sync-stat-lists: coindexed stat-variable ____________
+
+ ! Check constraint C1173 from the Fortran 2018 standard
+ !ERROR: to be determined
+ sync all(stat=co_indexed_integer[1])
+
+ ! Check constraint C1173 from the Fortran 2018 standard
+ !ERROR: to be determined
+ sync all(errmsg=co_indexed_character[1])
+
+end program test_sync_all