re PR fortran/85895 (ICE in gfc_conv_array_ref, at fortran/trans-array.c:3518)

2018-05-24  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85895
	* resolve.c (resolve_sync): Resolve expression before checking for
	an error.

2018-05-24  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/85895

	* gfortran.dg/coarray_3.f90: Fix invalid testcase.
	* gfortran.dg/pr85895.f90: New test.

From-SVN: r260696

gcc/fortran/ChangeLog

+2018-05-24  Steven G. Kargl  <kargl@gcc.gnu.org>
+
+	PR fortran/85895
+	* resolve.c (resolve_sync): Resolve expression before checking for
+	an error.
+
 2018-05-22  Janus Weil  <janus@gcc.gnu.org>
 
 	PR fortran/85841

gcc/fortran/resolve.c

@@ -9527,6 +9527,7 @@ resolve_sync (gfc_code *code)
     }
 
   /* Check STAT.  */
+  gfc_resolve_expr (code->expr2);
   if (code->expr2
       && (code->expr2->ts.type != BT_INTEGER || code->expr2->rank != 0
 	  || code->expr2->expr_type != EXPR_VARIABLE))
@@ -9534,6 +9535,7 @@ resolve_sync (gfc_code *code)
 	       &code->expr2->where);
 
   /* Check ERRMSG.  */
+  gfc_resolve_expr (code->expr3);
   if (code->expr3
       && (code->expr3->ts.type != BT_CHARACTER || code->expr3->rank != 0
 	  || code->expr3->expr_type != EXPR_VARIABLE))

gcc/testsuite/ChangeLog

+2018-05-24  Steven G. Kargl  <kargl@gcc.gnu.org>
+
+	PR fortran/85895
+
+	* gfortran.dg/coarray_3.f90: Fix invalid testcase.
+	* gfortran.dg/pr85895.f90: New test.
+
 2018-05-24  Uros Bizjak  <ubizjak@gmail.com>
 
 	* gcc.target/i386/avx512f-vcvtusi2sd64-1.c: Update scan string.

gcc/testsuite/gfortran.dg/coarray_3.f90

@@ -13,7 +13,7 @@ end critical fkl ! { dg-error "Expecting END PROGRAM" }
 
 sync all (stat=1) ! { dg-error "Syntax error in SYNC ALL" }
 sync all ( stat = n,stat=k) ! { dg-error "Redundant STAT" }
-sync memory (errmsg=str)
+sync memory (errmsg=str) ! { dg-error "must be a scalar CHARACTER variable" }
 sync memory (errmsg=n) ! { dg-error "must be a scalar CHARACTER variable" }
 sync images (*, stat=1.0) ! { dg-error "Syntax error in SYNC IMAGES" }
 sync images (-1) ! { dg-error "must between 1 and num_images" }

gcc/testsuite/gfortran.dg/pr85895.f90

+! { dg-do compile }
+! { dg-options "-fcoarray=lib" }
+! PR fortran/85895
+subroutine p
+   character(80) :: c(2)
+   sync memory (errmsg=c)        ! { dg-error "scalar CHARACTER variable" }
+end subroutine p
+
+subroutine q
+   character(80) :: c(2)
+   sync memory (errmsg=c(1:2))   ! { dg-error "scalar CHARACTER variable" }
+end subroutine q
+
+subroutine r
+   character(80) :: c(2)
+   sync memory (errmsg=c(1))
+end subroutine r