C++ BUG: base ctor throw regression

Mark Mitchell mark@codesourcery.com
Tue Nov 30 23:39:00 GMT 1999


Fixed with this patch.

--
Mark Mitchell                   mark@codesourcery.com
CodeSourcery, LLC               http://www.codesourcery.com

1999-11-22  Mark Mitchell  <mark@codesourcery.com>

	* cp-tree.def (CTOR_COMPLETE): New tree node.
	(finish_constructor_body): Add it, to mark the end of the
	constructor.
	(finish_function): Don't call end_protect_partials here.
	* ir.texi (CTOR_COMPLETE): Document it.
	* semantics.c (expand_stmt): Handle it.

Index: testsuite/g++.old-deja/g++.eh/cleanup2.C
===================================================================
RCS file: /cvs/gcc/egcs/gcc/testsuite/g++.old-deja/g++.eh/cleanup2.C,v
retrieving revision 1.1
diff -c -p -r1.1 cleanup2.C
*** cleanup2.C	1999/11/22 15:51:14	1.1
--- cleanup2.C	1999/11/23 07:27:01
***************
*** 4,11 ****
  // make sure we don't call base dtors, if we failed to call the
  // base ctor due to exception throwing
  
- // execution test - XFAIL *-*-*
- 
  #include <stdio.h>
  
  static bool bad = false;
--- 4,9 ----
Index: cp/ChangeLog
===================================================================
RCS file: /cvs/gcc/egcs/gcc/cp/ChangeLog,v
retrieving revision 1.1429
diff -c -p -r1.1429 ChangeLog
*** ChangeLog	1999/11/23 02:49:40	1.1429
--- ChangeLog	1999/11/23 07:27:13
***************
*** 1,5 ****
--- 1,12 ----
  1999-11-22  Mark Mitchell  <mark@codesourcery.com>
  
+ 	* cp-tree.def (CTOR_COMPLETE): New tree node.
+ 	(finish_constructor_body): Add it, to mark the end of the
+ 	constructor.
+ 	(finish_function): Don't call end_protect_partials here.
+ 	* ir.texi (CTOR_COMPLETE): Document it.
+ 	* semantics.c (expand_stmt): Handle it.
+ 	
  	* cp-tree.def (FUNCTION_NAME): New tree node.
  	* cp-tree.h (current_function_name_declared): Tweak documentation.
  	(lang_decl_flags): Add pretty_function_p, adjust dummy.
Index: cp/cp-tree.def
===================================================================
RCS file: /cvs/gcc/egcs/gcc/cp/cp-tree.def,v
retrieving revision 1.40
diff -c -p -r1.40 cp-tree.def
*** cp-tree.def	1999/11/23 02:49:40	1.40
--- cp-tree.def	1999/11/23 07:27:13
*************** DEFTREECODE (ASM_STMT, "asm_stmt", 'e', 
*** 237,242 ****
--- 237,245 ----
     run if an exception is thrown before the end of the enclosing
     function.  */
  DEFTREECODE (SUBOBJECT, "subobject", 'e', 1)
+ /* A CTOR_COMPLETE statements marks the end of the main body of the
+    constructor, not including any function try blocks.  */
+ DEFTREECODE (CTOR_COMPLETE, "ctor_complete", 'e', 0)
  /* A CLEANUP_STMT marks the point at which a declaration is fully
     constructed.  If, after this point, the CLEANUP_DECL goes out of
     scope, the CLEANUP_EXPR must be run.  */
Index: cp/decl.c
===================================================================
RCS file: /cvs/gcc/egcs/gcc/cp/decl.c,v
retrieving revision 1.507
diff -c -p -r1.507 decl.c
*** decl.c	1999/11/23 02:49:40	1.507
--- decl.c	1999/11/23 07:27:22
*************** finish_constructor_body ()
*** 13293,13298 ****
--- 13293,13302 ----
    /* In check_return_expr we translate an empty return from a
       constructor to a return of `this'.  */
    finish_return_stmt (NULL_TREE);
+ 
+   /* Mark the end of the main constructor body.  */
+   if (DECL_CONSTRUCTOR_P (current_function_decl))
+     add_tree (build_min_nt (CTOR_COMPLETE));
  }
  
  /* At the end of every destructor we generate code to restore virtual
*************** finish_function (lineno, flags)
*** 13521,13529 ****
  	;
        else if (DECL_CONSTRUCTOR_P (fndecl))
  	{
- 	  /* All subobjects have been fully constructed at this point.  */
- 	  end_protect_partials ();
- 
  	  if (call_poplevel)
  	    do_poplevel ();
  	}
--- 13525,13530 ----
Index: cp/ir.texi
===================================================================
RCS file: /cvs/gcc/egcs/gcc/cp/ir.texi,v
retrieving revision 1.20
diff -c -p -r1.20 ir.texi
*** ir.texi	1999/10/27 18:19:17	1.20
--- ir.texi	1999/11/23 07:27:25
*************** following the @code{TREE_CHAIN} link fro
*** 1274,1279 ****
--- 1274,1283 ----
  Used to represent a @code{continue} statement.  There are no additional
  fields.
  
+ @item CTOR_COMPLETE
+ 
+ Used to mark the end of the main body of a constructor.
+ 
  @item DECL_STMT
  
  Used to represent a local declaration.  The @code{DECL_STMT_DECL} macro
*************** equalit) to @code{CATCH_ALL_TYPE} if thi
*** 1383,1389 ****
  
  In a constructor, these nodes are used to mark the point at which a
  subobject of @code{this} is fully constructed.  If, after this point, an
! exception is thrown before the constructor finishes executing, the
  @code{SUBOBJECT_CLEANUP} must be executed.  The cleanups must be
  executed in the reverse order in which they appear.
  
--- 1387,1393 ----
  
  In a constructor, these nodes are used to mark the point at which a
  subobject of @code{this} is fully constructed.  If, after this point, an
! exception is thrown before a CTOR_COMPLETE statement is encountered, the
  @code{SUBOBJECT_CLEANUP} must be executed.  The cleanups must be
  executed in the reverse order in which they appear.
  
Index: cp/semantics.c
===================================================================
RCS file: /cvs/gcc/egcs/gcc/cp/semantics.c,v
retrieving revision 1.108
diff -c -p -r1.108 semantics.c
*** semantics.c	1999/11/23 02:49:41	1.108
--- semantics.c	1999/11/23 07:27:26
*************** expand_stmt (t)
*** 2268,2273 ****
--- 2268,2278 ----
  	  finish_expr_stmt (EXPR_STMT_EXPR (t));
  	  break;
  
+ 	case CTOR_COMPLETE:
+ 	  /* All subobjects have been fully constructed at this point.  */
+ 	  end_protect_partials ();
+ 	  break;
+ 
  	case DECL_STMT:
  	  {
  	    tree decl;



More information about the Gcc-bugs mailing list