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re PR c++/23491 (new declarator with constant expression gives "error: invalid use of array with unspecified bounds") 

PR c++/23491
	* cp-tree.h (build_vec_init): Adjust prototype.
	* init.c (perform_member_init): Adjust call to build_vec_init.
	(build_aggr_init): Likewise.
	(build_new_1): Do not call build_default_init for array types.
	(build_vec_init): Add explicit_default_init_p parameter.  Perform
	default initialization of vector elements when set.
	* typeck.c (build_modify_expr): Adjust call to build_vec_init.

	PR c++/23491
	* g++.dg/init/new14.C: New test.
	* g++.dg/expr/anew1.C: Do not XFAIL.
	* g++.dg/expr/anew2.C: Likewise.
	* g++.dg/expr/anew3.C: Likewise.

From-SVN: r103530
This commit is contained in:
Mark Mitchell 2005-08-26 19:32:31 +00:00 committed by Mark Mitchell
parent d6cde48033
commit b84f46516b
9 changed files with 104 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
gcc/cp/ChangeLog
View File

@ -1,3 +1,19 @@
2005-08-26 Mark Mitchell <mark@codesourcery.com>
PR c++/23491
* cp-tree.h (build_vec_init): Adjust prototype.
* init.c (perform_member_init): Adjust call to build_vec_init.
(build_aggr_init): Likewise.
(build_new_1): Do not call build_default_init for array types.
(build_vec_init): Add explicit_default_init_p parameter. Perform
default initialization of vector elements when set.
* typeck.c (build_modify_expr): Adjust call to build_vec_init.
PR c++/19004
* pt.c (uses_template_parms): Handle IDENTIFIER_NODE.
(type_dependent_expression_p): Allow BASELINKs whose associated
functions are simply a FUNCTION_DECL.
2005-08-25 Nathan Sidwell <nathan@codesourcery.com>
PR c++/20817

2
gcc/cp/cp-tree.h
View File

@ -3918,7 +3918,7 @@ extern tree get_type_value (tree);
extern tree build_zero_init (tree, tree, bool);
extern tree build_offset_ref (tree, tree, bool);
extern tree build_new (tree, tree, tree, tree, int);
extern tree build_vec_init (tree, tree, tree, int);
extern tree build_vec_init (tree, tree, tree, bool, int);
extern tree build_x_delete (tree, int, tree);
extern tree build_delete (tree, tree,
special_function_kind,

92
gcc/cp/init.c
View File

@ -358,6 +358,7 @@ perform_member_init (tree member, tree init)
{
/* Initialization of one array from another. */
finish_expr_stmt (build_vec_init (decl, NULL_TREE, TREE_VALUE (init),
/*explicit_default_init_p=*/false,
/* from_array=*/1));
}
else
@ -1112,6 +1113,7 @@ build_aggr_init (tree exp, tree init, int flags)
if (itype && cp_type_quals (itype) != TYPE_UNQUALIFIED)
itype = TREE_TYPE (init) = TYPE_MAIN_VARIANT (itype);
stmt_expr = build_vec_init (exp, NULL_TREE, init,
/*explicit_default_init_p=*/false,
itype && same_type_p (itype,
TREE_TYPE (exp)));
TREE_READONLY (exp) = was_const;
@ -2055,46 +2057,59 @@ build_new_1 (tree exp)
init_expr = build_indirect_ref (data_addr, NULL);
if (init == void_zero_node)
init = build_default_init (full_type, nelts);
else if (init && array_p)
pedwarn ("ISO C++ forbids initialization in array new");
if (array_p)
{
bool explicit_default_init_p = false;
if (init == void_zero_node)
{
init = NULL_TREE;
explicit_default_init_p = true;
}
else if (init)
pedwarn ("ISO C++ forbids initialization in array new");
init_expr
= build_vec_init (init_expr,
cp_build_binary_op (MINUS_EXPR, outer_nelts,
integer_one_node),
init, /*from_array=*/0);
init,
explicit_default_init_p,
/*from_array=*/0);
/* An array initialization is stable because the initialization
of each element is a full-expression, so the temporaries don't
leak out. */
stable = true;
}
else if (TYPE_NEEDS_CONSTRUCTING (type))
{
init_expr = build_special_member_call (init_expr,
complete_ctor_identifier,
init, elt_type,
LOOKUP_NORMAL);
stable = stabilize_init (init_expr, &init_preeval_expr);
}
else
{
/* We are processing something like `new int (10)', which
means allocate an int, and initialize it with 10. */
if (TREE_CODE (init) == TREE_LIST)
init = build_x_compound_expr_from_list (init, "new initializer");
if (init == void_zero_node)
init = build_default_init (full_type, nelts);
if (TYPE_NEEDS_CONSTRUCTING (type))
{
init_expr = build_special_member_call (init_expr,
complete_ctor_identifier,
init, elt_type,
LOOKUP_NORMAL);
stable = stabilize_init (init_expr, &init_preeval_expr);
}
else
gcc_assert (TREE_CODE (init) != CONSTRUCTOR
|| TREE_TYPE (init) != NULL_TREE);
init_expr = build_modify_expr (init_expr, INIT_EXPR, init);
stable = stabilize_init (init_expr, &init_preeval_expr);
{
/* We are processing something like `new int (10)', which
means allocate an int, and initialize it with 10. */
if (TREE_CODE (init) == TREE_LIST)
init = build_x_compound_expr_from_list (init,
"new initializer");
else
gcc_assert (TREE_CODE (init) != CONSTRUCTOR
|| TREE_TYPE (init) != NULL_TREE);
init_expr = build_modify_expr (init_expr, INIT_EXPR, init);
stable = stabilize_init (init_expr, &init_preeval_expr);
}
}
if (init_expr == error_mark_node)
@ -2375,8 +2390,12 @@ get_temp_regvar (tree type, tree init)
MAXINDEX is the maximum index of the array (one less than the
number of elements). It is only used if
TYPE_DOMAIN (TREE_TYPE (BASE)) == NULL_TREE.
INIT is the (possibly NULL) initializer.
If EXPLICIT_DEFAULT_INIT_P is true, then INIT must be NULL. All
elements in the array are default-initialized.
FROM_ARRAY is 0 if we should init everything with INIT
(i.e., every element initialized from INIT).
FROM_ARRAY is 1 if we should index into INIT in parallel
@ -2385,7 +2404,9 @@ get_temp_regvar (tree type, tree init)
but use assignment instead of initialization. */
tree
build_vec_init (tree base, tree maxindex, tree init, int from_array)
build_vec_init (tree base, tree maxindex, tree init,
bool explicit_default_init_p,
int from_array)
{
tree rval;
tree base2 = NULL_TREE;
@ -2414,6 +2435,9 @@ build_vec_init (tree base, tree maxindex, tree init, int from_array)
if (maxindex == NULL_TREE || maxindex == error_mark_node)
return error_mark_node;
if (explicit_default_init_p)
gcc_assert (!init);
inner_elt_type = strip_array_types (atype);
if (init
&& (from_array == 2
@ -2544,7 +2568,7 @@ build_vec_init (tree base, tree maxindex, tree init, int from_array)
We do need to keep going if we're copying an array. */
if (from_array
|| (TYPE_NEEDS_CONSTRUCTING (type)
|| ((TYPE_NEEDS_CONSTRUCTING (type) || explicit_default_init_p)
&& ! (host_integerp (maxindex, 0)
&& (num_initialized_elts
== tree_low_cst (maxindex, 0) + 1))))
@ -2553,6 +2577,7 @@ build_vec_init (tree base, tree maxindex, tree init, int from_array)
we've already initialized all the elements. */
tree for_stmt;
tree elt_init;
tree to;
for_stmt = begin_for_stmt ();
finish_for_init_stmt (for_stmt);
@ -2562,9 +2587,10 @@ build_vec_init (tree base, tree maxindex, tree init, int from_array)
finish_for_expr (build_unary_op (PREDECREMENT_EXPR, iterator, 0),
for_stmt);
to = build1 (INDIRECT_REF, type, base);
if (from_array)
{
tree to = build1 (INDIRECT_REF, type, base);
tree from;
if (base2)
@ -2587,11 +2613,17 @@ build_vec_init (tree base, tree maxindex, tree init, int from_array)
sorry
("cannot initialize multi-dimensional array with initializer");
elt_init = build_vec_init (build1 (INDIRECT_REF, type, base),
0, 0, 0);
0, 0,
/*explicit_default_init_p=*/false,
0);
}
else if (!TYPE_NEEDS_CONSTRUCTING (type))
elt_init = (build_modify_expr
(to, INIT_EXPR,
build_zero_init (type, size_one_node,
/*static_storage_p=*/false)));
else
elt_init = build_aggr_init (build1 (INDIRECT_REF, type, base),
init, 0);
elt_init = build_aggr_init (to, init, 0);
current_stmt_tree ()->stmts_are_full_exprs_p = 1;
finish_expr_stmt (elt_init);

4
gcc/cp/typeck.c
View File

@ -5472,7 +5472,9 @@ build_modify_expr (tree lhs, enum tree_code modifycode, tree rhs)
from_array = TREE_CODE (TREE_TYPE (newrhs)) == ARRAY_TYPE
? 1 + (modifycode != INIT_EXPR): 0;
return build_vec_init (lhs, NULL_TREE, newrhs, from_array);
return build_vec_init (lhs, NULL_TREE, newrhs,
/*explicit_default_init_p=*/false,
from_array);
}
if (modifycode == INIT_EXPR)

8
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,11 @@
2005-08-26 Mark Mitchell <mark@codesourcery.com>
PR c++/23491
* g++.dg/init/new14.C: New test.
* g++.dg/expr/anew1.C: Do not XFAIL.
* g++.dg/expr/anew2.C: Likewise.
* g++.dg/expr/anew3.C: Likewise.
2005-08-26 Andrew Pinski <pinskia@physics.uc.edu>
PR middle-end/22439

3
gcc/testsuite/g++.dg/expr/anew1.C
View File

@ -1,5 +1,4 @@
// { dg-do run { xfail *-*-* } }
// XFAILed until PR2123 is fixed
// { dg-do run }
// PR 11228: array operator new, with zero-initialization and a variable sized array.
// Regression test for PR
// Author: Matt Austern <austern@apple.com>

3
gcc/testsuite/g++.dg/expr/anew2.C
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@ -1,5 +1,4 @@
// { dg-do run { xfail *-*-* } }
// XFAILed until PR2123 is fixed
// { dg-do run }
// PR 11228: array operator new, with zero-initialization and a variable sized array.
// Regression test for PR
// Author: Matt Austern <austern@apple.com>

3
gcc/testsuite/g++.dg/expr/anew3.C
View File

@ -1,5 +1,4 @@
// { dg-do run { xfail *-*-* } }
// XFAILed until PR2123 is fixed
// { dg-do run }
// PR 11228: array operator new, with zero-initialization and a variable sized array.
// Regression test for PR
// Author: Matt Austern <austern@apple.com>

11
gcc/testsuite/g++.dg/init/new14.C Normal file
View File

@ -0,0 +1,11 @@
// PR c++/23491
struct X
{
int m;
};
void f(int n)
{
const X *p = new const X[1] () ;
}