re PR fortran/78741 (ICE in gfc_get_symbol_decl, at fortran/trans-decl.c:1534)

2018-03-15  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/78741
	* decl.c (get_proc_name):  Check for clash of entry name with
	subroutine name.

2018-03-15  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/78741
	* gfortran.dg/pr78741.f90: New test.

From-SVN: r258581

gcc/fortran/ChangeLog

 2018-03-15  Steven G. Kargl  <kargl@gcc.gnu.org>
 
+	PR fortran/78741
+	* decl.c (get_proc_name):  Check for clash of entry name with
+	subroutine name.
+
+2018-03-15  Steven G. Kargl  <kargl@gcc.gnu.org>
+
 	PR fortran/69395
 	* decl.c (merge_array_spec): Limit the merging to maximum allowed
 	dimensions, and issue error message if limit is exceeded.

gcc/fortran/decl.c

@@ -1209,11 +1209,16 @@ get_proc_name (const char *name, gfc_symbol **result, bool module_fcn_entry)
 	 accessible names.  */
       if (sym->attr.flavor != 0
 	  && sym->attr.proc != 0
-	  && (sym->attr.subroutine || sym->attr.function)
+	  && (sym->attr.subroutine || sym->attr.function || sym->attr.entry)
 	  && sym->attr.if_source != IFSRC_UNKNOWN)
 	gfc_error_now ("Procedure %qs at %C is already defined at %L",
 		       name, &sym->declared_at);
 
+      if (sym->attr.flavor != 0
+	  && sym->attr.entry && sym->attr.if_source != IFSRC_UNKNOWN)
+	gfc_error_now ("Procedure %qs at %C is already defined at %L",
+		       name, &sym->declared_at);
+
       /* Trap a procedure with a name the same as interface in the
 	 encompassing scope.  */
       if (sym->attr.generic != 0

gcc/testsuite/ChangeLog

 2018-03-15  Steven G. Kargl  <kargl@gcc.gnu.org>
 
+	PR fortran/78741
+	* gfortran.dg/pr78741.f90: New test.
+
+2018-03-15  Steven G. Kargl  <kargl@gcc.gnu.org>
+
 	PR fortran/69395
 	* gfortran.dg/pr69395.f90: New test.
 

gcc/testsuite/gfortran.dg/pr78741.f90

+! { dg-do compile }
+! PR fortran/78741
+! Contributed by Gerhard Steinmetz <gerhard.steinmetz.fortran at t-online.de>
+subroutine s(n, x)
+   integer :: n
+   character(n) :: x
+   character, pointer :: z(:)
+   x = 'a'
+   return
+entry g(n, x)           ! { dg-error "is already defined" }
+   x = 'b'
+contains
+   subroutine g         ! { dg-error "(1)" }
+      z(1) = x(1:1)
+   end
+end