re PR fortran/90297 (gcc/fortran/resolve.c: 2 * possibly redundant code ?)

2019-08-02  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/90297
	* match.c (gfc_match_equivalence): Check that EQUIVALENCE is followed
	by '('.

2019-08-02  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/90297
	* gfortran.dg/equiv_10.f90: New test.

From-SVN: r274031

gcc/fortran/ChangeLog

+2019-08-02  Steven G. Kargl  <kargl@gcc.gnu.org>
+
+	PR fortran/90297
+	* match.c (gfc_match_equivalence): Check that EQUIVALENCE is followed
+	by '('.
+
 2019-07-30  Steven G. Kargl  <kargl@gcc.gnu.org>
 
 	PR fortran/91296

gcc/fortran/match.c

@@ -5552,6 +5552,15 @@ gfc_match_equivalence (void)
   gfc_common_head *common_head = NULL;
   bool common_flag;
   int cnt;
+  char c;
+
+  /* EQUIVALENCE has been matched.  After gobbling any possible whitespace,
+     the next character needs to be '('.  Check that here, and return
+     MATCH_NO for a variable of the form equivalencej.  */
+  gfc_gobble_whitespace ();
+  c = gfc_peek_ascii_char ();
+  if (c != '(')
+    return MATCH_NO;
 
   tail = NULL;
 

gcc/testsuite/ChangeLog

+2019-08-02  Steven G. Kargl  <kargl@gcc.gnu.org>
+
+	PR fortran/90297
+	* gfortran.dg/equiv_10.f90: New test.
+
 2019-08-02  Marek Polacek  <polacek@redhat.com>
 
 	PR c++/56428

gcc/testsuite/gfortran.dg/equiv_10.f90

+! { dg-do compile }
+! PR fortran/90986
+module mymod
+  type :: mytyp
+    integer :: i
+  end type mytyp
+contains
+  subroutine mysub
+    implicit none
+    type(mytyp) :: a
+    integer :: equivalencei,equivalencej
+    equivalencei = a%i
+    equivalencej = a%j  ! { dg-error "is not a member of the" }
+  end subroutine mysub
+end module mymod