diff options
author | kan <kan@FreeBSD.org> | 2007-05-19 01:19:51 +0000 |
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committer | kan <kan@FreeBSD.org> | 2007-05-19 01:19:51 +0000 |
commit | 1f9ea4d0a40cca64d60cf4dab152349da7b9dddf (patch) | |
tree | 0cb530c9c38af219e6dda2994c078b6b2b9ad853 /contrib/gcc/cp/init.c | |
parent | 4895159b2b4f648051c1f139faa7b6dc50c2bfcb (diff) | |
download | FreeBSD-src-1f9ea4d0a40cca64d60cf4dab152349da7b9dddf.zip FreeBSD-src-1f9ea4d0a40cca64d60cf4dab152349da7b9dddf.tar.gz |
GCC 4.2.0 release.
Diffstat (limited to 'contrib/gcc/cp/init.c')
-rw-r--r-- | contrib/gcc/cp/init.c | 1787 |
1 files changed, 799 insertions, 988 deletions
diff --git a/contrib/gcc/cp/init.c b/contrib/gcc/cp/init.c index 4e3cd4b..0ea6888 100644 --- a/contrib/gcc/cp/init.c +++ b/contrib/gcc/cp/init.c @@ -1,6 +1,6 @@ /* Handle initialization things in C++. Copyright (C) 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, - 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. + 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. Contributed by Michael Tiemann (tiemann@cygnus.com) This file is part of GCC. @@ -17,8 +17,8 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GCC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ /* High-level class interface. */ @@ -34,6 +34,7 @@ Boston, MA 02111-1307, USA. */ #include "output.h" #include "except.h" #include "toplev.h" +#include "target.h" static bool begin_init_stmts (tree *, tree *); static tree finish_init_stmts (bool, tree, tree); @@ -51,8 +52,6 @@ static void expand_cleanup_for_base (tree, tree); static tree get_temp_regvar (tree, tree); static tree dfs_initialize_vtbl_ptrs (tree, void *); static tree build_default_init (tree, tree); -static tree build_new_1 (tree); -static tree get_cookie_size (tree); static tree build_dtor_call (tree, special_function_kind, int); static tree build_field_list (tree, tree, int *); static tree build_vtbl_address (tree); @@ -70,9 +69,9 @@ static bool begin_init_stmts (tree *stmt_expr_p, tree *compound_stmt_p) { bool is_global = !building_stmt_tree (); - + *stmt_expr_p = begin_stmt_expr (); - *compound_stmt_p = begin_compound_stmt (/*has_no_scope=*/true); + *compound_stmt_p = begin_compound_stmt (BCS_NO_SCOPE); return is_global; } @@ -82,13 +81,13 @@ begin_init_stmts (tree *stmt_expr_p, tree *compound_stmt_p) static tree finish_init_stmts (bool is_global, tree stmt_expr, tree compound_stmt) -{ +{ finish_compound_stmt (compound_stmt); - + stmt_expr = finish_stmt_expr (stmt_expr, true); - my_friendly_assert (!building_stmt_tree () == is_global, 20030726); - + gcc_assert (!building_stmt_tree () == is_global); + return stmt_expr; } @@ -101,8 +100,10 @@ finish_init_stmts (bool is_global, tree stmt_expr, tree compound_stmt) static tree dfs_initialize_vtbl_ptrs (tree binfo, void *data) { - if ((!BINFO_PRIMARY_P (binfo) || TREE_VIA_VIRTUAL (binfo)) - && CLASSTYPE_VFIELDS (BINFO_TYPE (binfo))) + if (!TYPE_CONTAINS_VPTR_P (BINFO_TYPE (binfo))) + return dfs_skip_bases; + + if (!BINFO_PRIMARY_P (binfo) || BINFO_VIRTUAL_P (binfo)) { tree base_ptr = TREE_VALUE ((tree) data); @@ -111,8 +112,6 @@ dfs_initialize_vtbl_ptrs (tree binfo, void *data) expand_virtual_init (binfo, base_ptr); } - BINFO_MARKED (binfo) = 1; - return NULL_TREE; } @@ -132,9 +131,7 @@ initialize_vtbl_ptrs (tree addr) class. We do these in pre-order because we can't find the virtual bases for a class until we've initialized the vtbl for that class. */ - dfs_walk_real (TYPE_BINFO (type), dfs_initialize_vtbl_ptrs, - NULL, unmarkedp, list); - dfs_walk (TYPE_BINFO (type), dfs_unmark, markedp, type); + dfs_walk_once (TYPE_BINFO (type), dfs_initialize_vtbl_ptrs, NULL, list); } /* Return an expression for the zero-initialization of an object with @@ -158,21 +155,20 @@ build_zero_init (tree type, tree nelts, bool static_storage_p) To zero-initialization storage for an object of type T means: -- if T is a scalar type, the storage is set to the value of zero - converted to T. + converted to T. -- if T is a non-union class type, the storage for each nonstatic - data member and each base-class subobject is zero-initialized. + data member and each base-class subobject is zero-initialized. -- if T is a union type, the storage for its first data member is - zero-initialized. + zero-initialized. -- if T is an array type, the storage for each element is - zero-initialized. + zero-initialized. -- if T is a reference type, no initialization is performed. */ - my_friendly_assert (nelts == NULL_TREE || TREE_CODE (nelts) == INTEGER_CST, - 20030618); + gcc_assert (nelts == NULL_TREE || TREE_CODE (nelts) == INTEGER_CST); if (type == error_mark_node) ; @@ -182,17 +178,15 @@ build_zero_init (tree type, tree nelts, bool static_storage_p) items with static storage duration that are not otherwise initialized are initialized to zero. */ ; - else if (SCALAR_TYPE_P (type)) + else if (SCALAR_TYPE_P (type) + || TREE_CODE (type) == COMPLEX_TYPE) init = convert (type, integer_zero_node); else if (CLASS_TYPE_P (type)) { tree field; - tree inits; + VEC(constructor_elt,gc) *v = NULL; - /* Build a constructor to contain the initializations. */ - init = build_constructor (type, NULL_TREE); /* Iterate over the fields, building initializations. */ - inits = NULL_TREE; for (field = TYPE_FIELDS (type); field; field = TREE_CHAIN (field)) { if (TREE_CODE (field) != FIELD_DECL) @@ -203,53 +197,74 @@ build_zero_init (tree type, tree nelts, bool static_storage_p) over TYPE_FIELDs will result in correct initialization of all of the subobjects. */ if (static_storage_p && !zero_init_p (TREE_TYPE (field))) - inits = tree_cons (field, - build_zero_init (TREE_TYPE (field), - /*nelts=*/NULL_TREE, - static_storage_p), - inits); + { + tree value = build_zero_init (TREE_TYPE (field), + /*nelts=*/NULL_TREE, + static_storage_p); + CONSTRUCTOR_APPEND_ELT(v, field, value); + } /* For unions, only the first field is initialized. */ if (TREE_CODE (type) == UNION_TYPE) break; } - CONSTRUCTOR_ELTS (init) = nreverse (inits); + + /* Build a constructor to contain the initializations. */ + init = build_constructor (type, v); } else if (TREE_CODE (type) == ARRAY_TYPE) { tree max_index; - tree inits; + VEC(constructor_elt,gc) *v = NULL; - /* Build a constructor to contain the initializations. */ - init = build_constructor (type, NULL_TREE); /* Iterate over the array elements, building initializations. */ - inits = NULL_TREE; - max_index = nelts ? nelts : array_type_nelts (type); - my_friendly_assert (TREE_CODE (max_index) == INTEGER_CST, 20030618); + if (nelts) + max_index = fold_build2 (MINUS_EXPR, TREE_TYPE (nelts), + nelts, integer_one_node); + else + max_index = array_type_nelts (type); + + /* If we have an error_mark here, we should just return error mark + as we don't know the size of the array yet. */ + if (max_index == error_mark_node) + return error_mark_node; + gcc_assert (TREE_CODE (max_index) == INTEGER_CST); /* A zero-sized array, which is accepted as an extension, will have an upper bound of -1. */ if (!tree_int_cst_equal (max_index, integer_minus_one_node)) { - tree elt_init = build_zero_init (TREE_TYPE (type), - /*nelts=*/NULL_TREE, - static_storage_p); - tree range = build (RANGE_EXPR, - sizetype, size_zero_node, max_index); - - inits = tree_cons (range, elt_init, inits); + constructor_elt *ce; + + v = VEC_alloc (constructor_elt, gc, 1); + ce = VEC_quick_push (constructor_elt, v, NULL); + + /* If this is a one element array, we just use a regular init. */ + if (tree_int_cst_equal (size_zero_node, max_index)) + ce->index = size_zero_node; + else + ce->index = build2 (RANGE_EXPR, sizetype, size_zero_node, + max_index); + + ce->value = build_zero_init (TREE_TYPE (type), + /*nelts=*/NULL_TREE, + static_storage_p); } - - CONSTRUCTOR_ELTS (init) = nreverse (inits); + + /* Build a constructor to contain the initializations. */ + init = build_constructor (type, v); } - else if (TREE_CODE (type) == REFERENCE_TYPE) - ; + else if (TREE_CODE (type) == VECTOR_TYPE) + init = fold_convert (type, integer_zero_node); else - abort (); + gcc_assert (TREE_CODE (type) == REFERENCE_TYPE); /* In all cases, the initializer is a constant. */ if (init) - TREE_CONSTANT (init) = 1; + { + TREE_CONSTANT (init) = 1; + TREE_INVARIANT (init) = 1; + } return init; } @@ -285,7 +300,7 @@ build_default_init (tree type, tree nelts) a class with a pointer-to-data member as a non-static data member does not have TYPE_NEEDS_CONSTRUCTING set.) Therefore, we end up passing non-PODs to build_zero_init below, which is contrary to - the semantics quoted above from [dcl.init]. + the semantics quoted above from [dcl.init]. It happens, however, that the behavior of the constructor the standard says we should have generated would be precisely the @@ -294,7 +309,7 @@ build_default_init (tree type, tree nelts) if (TYPE_NEEDS_CONSTRUCTING (type) || (nelts && TREE_CODE (nelts) != INTEGER_CST)) return NULL_TREE; - + /* At this point, TYPE is either a POD class type, an array of POD classes, or something even more innocuous. */ return build_zero_init (type, nelts, /*static_storage_p=*/false); @@ -316,9 +331,8 @@ perform_member_init (tree member, tree init) /* Effective C++ rule 12 requires that all data members be initialized. */ if (warn_ecpp && !explicit && TREE_CODE (type) != ARRAY_TYPE) - warning ("`%D' should be initialized in the member initialization " - "list", - member); + warning (OPT_Weffc__, "%J%qD should be initialized in the member initialization " + "list", current_function_decl, member); if (init == void_type_node) init = NULL_TREE; @@ -337,12 +351,11 @@ perform_member_init (tree member, tree init) { if (init) { - init = build (INIT_EXPR, type, decl, TREE_VALUE (init)); + init = build2 (INIT_EXPR, type, decl, TREE_VALUE (init)); finish_expr_stmt (init); } } - else if (TYPE_NEEDS_CONSTRUCTING (type) - || (init && TYPE_HAS_CONSTRUCTOR (type))) + else if (TYPE_NEEDS_CONSTRUCTING (type)) { if (explicit && TREE_CODE (type) == ARRAY_TYPE @@ -352,6 +365,7 @@ 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 @@ -365,16 +379,17 @@ perform_member_init (tree member, tree init) { init = build_default_init (type, /*nelts=*/NULL_TREE); if (TREE_CODE (type) == REFERENCE_TYPE) - warning - ("default-initialization of `%#D', which has reference type", - member); + warning (0, "%Jdefault-initialization of %q#D, " + "which has reference type", + current_function_decl, member); } /* member traversal: note it leaves init NULL */ else if (TREE_CODE (type) == REFERENCE_TYPE) - pedwarn ("uninitialized reference member `%D'", member); + pedwarn ("%Juninitialized reference member %qD", + current_function_decl, member); else if (CP_TYPE_CONST_P (type)) - pedwarn ("uninitialized member `%D' with `const' type `%T'", - member, type); + pedwarn ("%Juninitialized member %qD with %<const%> type %qT", + current_function_decl, member, type); } else if (TREE_CODE (init) == TREE_LIST) /* There was an explicit member initialization. Do some work @@ -403,7 +418,7 @@ perform_member_init (tree member, tree init) /* Returns a TREE_LIST containing (as the TREE_PURPOSE of each node) all the FIELD_DECLs on the TYPE_FIELDS list for T, in reverse order. */ -static tree +static tree build_field_list (tree t, tree list, int *uses_unions_p) { tree fields; @@ -419,7 +434,7 @@ build_field_list (tree t, tree list, int *uses_unions_p) /* Skip CONST_DECLs for enumeration constants and so forth. */ if (TREE_CODE (fields) != FIELD_DECL || DECL_ARTIFICIAL (fields)) continue; - + /* Keep track of whether or not any fields are unions. */ if (TREE_CODE (TREE_TYPE (fields)) == UNION_TYPE) *uses_unions_p = 1; @@ -433,7 +448,7 @@ build_field_list (tree t, tree list, int *uses_unions_p) initialize the entire aggregate. */ list = tree_cons (fields, NULL_TREE, list); /* And now add the fields in the anonymous aggregate. */ - list = build_field_list (TREE_TYPE (fields), list, + list = build_field_list (TREE_TYPE (fields), list, uses_unions_p); } /* Add this field. */ @@ -456,9 +471,10 @@ static tree sort_mem_initializers (tree t, tree mem_inits) { tree init; - tree base; + tree base, binfo, base_binfo; tree sorted_inits; tree next_subobject; + VEC(tree,gc) *vbases; int i; int uses_unions_p; @@ -467,16 +483,18 @@ sort_mem_initializers (tree t, tree mem_inits) TREE_VALUE will be the constructor arguments, or NULL if no explicit initialization was provided. */ sorted_inits = NULL_TREE; + /* Process the virtual bases. */ - for (base = CLASSTYPE_VBASECLASSES (t); base; base = TREE_CHAIN (base)) - sorted_inits = tree_cons (TREE_VALUE (base), NULL_TREE, sorted_inits); + for (vbases = CLASSTYPE_VBASECLASSES (t), i = 0; + VEC_iterate (tree, vbases, i, base); i++) + sorted_inits = tree_cons (base, NULL_TREE, sorted_inits); + /* Process the direct bases. */ - for (i = 0; i < CLASSTYPE_N_BASECLASSES (t); ++i) - { - base = BINFO_BASETYPE (TYPE_BINFO (t), i); - if (!TREE_VIA_VIRTUAL (base)) - sorted_inits = tree_cons (base, NULL_TREE, sorted_inits); - } + for (binfo = TYPE_BINFO (t), i = 0; + BINFO_BASE_ITERATE (binfo, i, base_binfo); ++i) + if (!BINFO_VIRTUAL_P (base_binfo)) + sorted_inits = tree_cons (base_binfo, NULL_TREE, sorted_inits); + /* Process the non-static data members. */ sorted_inits = build_field_list (t, sorted_inits, &uses_unions_p); /* Reverse the entire list of initializations, so that they are in @@ -499,29 +517,30 @@ sort_mem_initializers (tree t, tree mem_inits) subobject = TREE_PURPOSE (init); /* If the explicit initializers are in sorted order, then - SUBOBJECT will be NEXT_SUBOBJECT, or something following + SUBOBJECT will be NEXT_SUBOBJECT, or something following it. */ - for (subobject_init = next_subobject; - subobject_init; + for (subobject_init = next_subobject; + subobject_init; subobject_init = TREE_CHAIN (subobject_init)) if (TREE_PURPOSE (subobject_init) == subobject) break; /* Issue a warning if the explicit initializer order does not - match that which will actually occur. */ + match that which will actually occur. + ??? Are all these on the correct lines? */ if (warn_reorder && !subobject_init) { if (TREE_CODE (TREE_PURPOSE (next_subobject)) == FIELD_DECL) - cp_warning_at ("`%D' will be initialized after", - TREE_PURPOSE (next_subobject)); + warning (OPT_Wreorder, "%q+D will be initialized after", + TREE_PURPOSE (next_subobject)); else - warning ("base `%T' will be initialized after", + warning (OPT_Wreorder, "base %qT will be initialized after", TREE_PURPOSE (next_subobject)); if (TREE_CODE (subobject) == FIELD_DECL) - cp_warning_at (" `%#D'", subobject); + warning (OPT_Wreorder, " %q+#D", subobject); else - warning (" base `%T'", subobject); - warning (" when initialized here"); + warning (OPT_Wreorder, " base %qT", subobject); + warning (OPT_Wreorder, "%J when initialized here", current_function_decl); } /* Look again, from the beginning of the list. */ @@ -531,16 +550,17 @@ sort_mem_initializers (tree t, tree mem_inits) while (TREE_PURPOSE (subobject_init) != subobject) subobject_init = TREE_CHAIN (subobject_init); } - + /* It is invalid to initialize the same subobject more than once. */ if (TREE_VALUE (subobject_init)) { if (TREE_CODE (subobject) == FIELD_DECL) - error ("multiple initializations given for `%D'", subobject); + error ("%Jmultiple initializations given for %qD", + current_function_decl, subobject); else - error ("multiple initializations given for base `%T'", - subobject); + error ("%Jmultiple initializations given for base %qT", + current_function_decl, subobject); } /* Record the initialization. */ @@ -563,7 +583,7 @@ sort_mem_initializers (tree t, tree mem_inits) int done; /* Skip uninitialized members and base classes. */ - if (!TREE_VALUE (init) + if (!TREE_VALUE (init) || TREE_CODE (TREE_PURPOSE (init)) != FIELD_DECL) continue; /* See if this field is a member of a union, or a member of a @@ -606,8 +626,8 @@ sort_mem_initializers (tree t, tree mem_inits) if (same_type_p (last_field_type, field_type)) { if (TREE_CODE (field_type) == UNION_TYPE) - error ("initializations for multiple members of `%T'", - last_field_type); + error ("%Jinitializations for multiple members of %qT", + current_function_decl, last_field_type); done = 1; break; } @@ -617,7 +637,7 @@ sort_mem_initializers (tree t, tree mem_inits) last_field_type = TYPE_CONTEXT (last_field_type); } - + /* If we've reached the outermost class, then we're done. */ if (same_type_p (field_type, t)) @@ -644,14 +664,19 @@ sort_mem_initializers (tree t, tree mem_inits) void emit_mem_initializers (tree mem_inits) { + /* We will already have issued an error message about the fact that + the type is incomplete. */ + if (!COMPLETE_TYPE_P (current_class_type)) + return; + /* Sort the mem-initializers into the order in which the initializations should be performed. */ mem_inits = sort_mem_initializers (current_class_type, mem_inits); in_base_initializer = 1; - + /* Initialize base classes. */ - while (mem_inits + while (mem_inits && TREE_CODE (TREE_PURPOSE (mem_inits)) != FIELD_DECL) { tree subobject = TREE_PURPOSE (mem_inits); @@ -660,12 +685,12 @@ emit_mem_initializers (tree mem_inits) /* If these initializations are taking place in a copy constructor, the base class should probably be explicitly initialized. */ - if (extra_warnings && !arguments + if (extra_warnings && !arguments && DECL_COPY_CONSTRUCTOR_P (current_function_decl) && TYPE_NEEDS_CONSTRUCTING (BINFO_TYPE (subobject))) - warning ("base class `%#T' should be explicitly initialized in the " + warning (OPT_Wextra, "%Jbase class %q#T should be explicitly initialized in the " "copy constructor", - BINFO_TYPE (subobject)); + current_function_decl, BINFO_TYPE (subobject)); /* If an explicit -- but empty -- initializer list was present, treat it just like default initialization at this point. */ @@ -673,16 +698,16 @@ emit_mem_initializers (tree mem_inits) arguments = NULL_TREE; /* Initialize the base. */ - if (TREE_VIA_VIRTUAL (subobject)) + if (BINFO_VIRTUAL_P (subobject)) construct_virtual_base (subobject, arguments); else { tree base_addr; - + base_addr = build_base_path (PLUS_EXPR, current_class_ptr, subobject, 1); expand_aggr_init_1 (subobject, NULL_TREE, - build_indirect_ref (base_addr, NULL), + build_indirect_ref (base_addr, NULL), arguments, LOOKUP_NORMAL); expand_cleanup_for_base (subobject, NULL_TREE); @@ -694,7 +719,7 @@ emit_mem_initializers (tree mem_inits) /* Initialize the vptrs. */ initialize_vtbl_ptrs (current_class_ptr); - + /* Initialize the data members. */ while (mem_inits) { @@ -713,15 +738,14 @@ build_vtbl_address (tree binfo) tree binfo_for = binfo; tree vtbl; - if (BINFO_VPTR_INDEX (binfo) && TREE_VIA_VIRTUAL (binfo) - && BINFO_PRIMARY_P (binfo)) + if (BINFO_VPTR_INDEX (binfo) && BINFO_VIRTUAL_P (binfo)) /* If this is a virtual primary base, then the vtable we want to store is that for the base this is being used as the primary base of. We can't simply skip the initialization, because we may be expanding the inits of a subobject constructor where the virtual base layout can be different. */ - while (BINFO_PRIMARY_BASE_OF (binfo_for)) - binfo_for = BINFO_PRIMARY_BASE_OF (binfo_for); + while (BINFO_PRIMARY_P (binfo_for)) + binfo_for = BINFO_INHERITANCE_CHAIN (binfo_for); /* Figure out what vtable BINFO's vtable is based on, and mark it as used. */ @@ -730,12 +754,9 @@ build_vtbl_address (tree binfo) TREE_USED (vtbl) = 1; /* Now compute the address to use when initializing the vptr. */ - vtbl = BINFO_VTABLE (binfo_for); + vtbl = unshare_expr (BINFO_VTABLE (binfo_for)); if (TREE_CODE (vtbl) == VAR_DECL) - { - vtbl = build1 (ADDR_EXPR, build_pointer_type (TREE_TYPE (vtbl)), vtbl); - TREE_CONSTANT (vtbl) = 1; - } + vtbl = build1 (ADDR_EXPR, build_pointer_type (TREE_TYPE (vtbl)), vtbl); return vtbl; } @@ -765,27 +786,28 @@ expand_virtual_init (tree binfo, tree decl) /* Compute the value to use, when there's a VTT. */ vtt_parm = current_vtt_parm; - vtbl2 = build (PLUS_EXPR, - TREE_TYPE (vtt_parm), - vtt_parm, - vtt_index); - vtbl2 = build1 (INDIRECT_REF, TREE_TYPE (vtbl), vtbl2); + vtbl2 = build2 (PLUS_EXPR, + TREE_TYPE (vtt_parm), + vtt_parm, + vtt_index); + vtbl2 = build_indirect_ref (vtbl2, NULL); + vtbl2 = convert (TREE_TYPE (vtbl), vtbl2); /* The actual initializer is the VTT value only in the subobject constructor. In maybe_clone_body we'll substitute NULL for the vtt_parm in the case of the non-subobject constructor. */ - vtbl = build (COND_EXPR, - TREE_TYPE (vtbl), - build (EQ_EXPR, boolean_type_node, - current_in_charge_parm, integer_zero_node), - vtbl2, - vtbl); + vtbl = build3 (COND_EXPR, + TREE_TYPE (vtbl), + build2 (EQ_EXPR, boolean_type_node, + current_in_charge_parm, integer_zero_node), + vtbl2, + vtbl); } /* Compute the location of the vtpr. */ vtbl_ptr = build_vfield_ref (build_indirect_ref (decl, NULL), TREE_TYPE (binfo)); - my_friendly_assert (vtbl_ptr != error_mark_node, 20010730); + gcc_assert (vtbl_ptr != error_mark_node); /* Assign the vtable to the vptr. */ vtbl = convert_force (TREE_TYPE (vtbl_ptr), vtbl, 0); @@ -807,15 +829,15 @@ expand_cleanup_for_base (tree binfo, tree flag) return; /* Call the destructor. */ - expr = build_special_member_call (current_class_ref, + expr = build_special_member_call (current_class_ref, base_dtor_identifier, NULL_TREE, binfo, LOOKUP_NORMAL | LOOKUP_NONVIRTUAL); if (flag) - expr = fold (build (COND_EXPR, void_type_node, + expr = fold_build3 (COND_EXPR, void_type_node, c_common_truthvalue_conversion (flag), - expr, integer_zero_node)); + expr, integer_zero_node); finish_eh_cleanup (expr); } @@ -827,9 +849,8 @@ static void construct_virtual_base (tree vbase, tree arguments) { tree inner_if_stmt; - tree compound_stmt; tree exp; - tree flag; + tree flag; /* If there are virtual base classes with destructors, we need to emit cleanups to destroy them if an exception is thrown during @@ -848,7 +869,6 @@ construct_virtual_base (tree vbase, tree arguments) flag = TREE_CHAIN (DECL_ARGUMENTS (current_function_decl)); inner_if_stmt = begin_if_stmt (); finish_if_stmt_cond (flag, inner_if_stmt); - compound_stmt = begin_compound_stmt (/*has_no_scope=*/true); /* Compute the location of the virtual base. If we're constructing virtual bases, then we must be the most derived @@ -856,11 +876,10 @@ construct_virtual_base (tree vbase, tree arguments) we already know where it is. */ exp = convert_to_base_statically (current_class_ref, vbase); - expand_aggr_init_1 (vbase, current_class_ref, exp, arguments, + expand_aggr_init_1 (vbase, current_class_ref, exp, arguments, LOOKUP_COMPLAIN); - finish_compound_stmt (compound_stmt); finish_then_clause (inner_if_stmt); - finish_if_stmt (); + finish_if_stmt (inner_if_stmt); expand_cleanup_for_base (vbase, flag); } @@ -883,7 +902,7 @@ initializing_context (tree field) is erroneous. FIELD is the member we decided to initialize. TYPE is the type for which the initialization is being performed. FIELD must be a member of TYPE. - + MEMBER_NAME is the name of the member. */ static int @@ -893,26 +912,26 @@ member_init_ok_or_else (tree field, tree type, tree member_name) return 0; if (!field) { - error ("class `%T' does not have any field named `%D'", type, + error ("class %qT does not have any field named %qD", type, member_name); return 0; } if (TREE_CODE (field) == VAR_DECL) { - error ("`%#D' is a static data member; it can only be " + error ("%q#D is a static data member; it can only be " "initialized at its definition", field); return 0; } if (TREE_CODE (field) != FIELD_DECL) { - error ("`%#D' is not a non-static data member of `%T'", + error ("%q#D is not a non-static data member of %qT", field, type); return 0; } if (initializing_context (field) != type) { - error ("class `%T' does not have any field named `%D'", type, + error ("class %qT does not have any field named %qD", type, member_name); return 0; } @@ -942,17 +961,18 @@ expand_member_init (tree name) { /* This is an obsolete unnamed base class initializer. The parser will already have warned about its use. */ - switch (CLASSTYPE_N_BASECLASSES (current_class_type)) + switch (BINFO_N_BASE_BINFOS (TYPE_BINFO (current_class_type))) { case 0: - error ("unnamed initializer for `%T', which has no base classes", + error ("unnamed initializer for %qT, which has no base classes", current_class_type); return NULL_TREE; case 1: - basetype = TYPE_BINFO_BASETYPE (current_class_type, 0); + basetype = BINFO_TYPE + (BINFO_BASE_BINFO (TYPE_BINFO (current_class_type), 0)); break; default: - error ("unnamed initializer for `%T', which uses multiple inheritance", + error ("unnamed initializer for %qT, which uses multiple inheritance", current_class_type); return NULL_TREE; } @@ -982,43 +1002,34 @@ expand_member_init (tree name) virtual_binfo = NULL_TREE; /* Look for a direct base. */ - for (i = 0; i < BINFO_N_BASETYPES (class_binfo); ++i) - if (same_type_p (basetype, - TYPE_BINFO_BASETYPE (current_class_type, i))) - { - direct_binfo = BINFO_BASETYPE (class_binfo, i); - break; - } + for (i = 0; BINFO_BASE_ITERATE (class_binfo, i, direct_binfo); ++i) + if (SAME_BINFO_TYPE_P (BINFO_TYPE (direct_binfo), basetype)) + break; + /* Look for a virtual base -- unless the direct base is itself virtual. */ - if (!direct_binfo || !TREE_VIA_VIRTUAL (direct_binfo)) - { - virtual_binfo - = purpose_member (basetype, - CLASSTYPE_VBASECLASSES (current_class_type)); - if (virtual_binfo) - virtual_binfo = TREE_VALUE (virtual_binfo); - } + if (!direct_binfo || !BINFO_VIRTUAL_P (direct_binfo)) + virtual_binfo = binfo_for_vbase (basetype, current_class_type); /* [class.base.init] - - If a mem-initializer-id is ambiguous because it designates + + If a mem-initializer-id is ambiguous because it designates both a direct non-virtual base class and an inherited virtual base class, the mem-initializer is ill-formed. */ if (direct_binfo && virtual_binfo) { - error ("'%D' is both a direct base and an indirect virtual base", + error ("%qD is both a direct base and an indirect virtual base", basetype); return NULL_TREE; } if (!direct_binfo && !virtual_binfo) { - if (TYPE_USES_VIRTUAL_BASECLASSES (current_class_type)) - error ("type `%T' is not a direct or virtual base of `%T'", + if (CLASSTYPE_VBASECLASSES (current_class_type)) + error ("type %qT is not a direct or virtual base of %qT", basetype, current_class_type); else - error ("type `%T' is not a direct base of `%T'", + error ("type %qT is not a direct base of %qT", basetype, current_class_type); return NULL_TREE; } @@ -1092,34 +1103,26 @@ build_aggr_init (tree exp, tree init, int flags) if (TREE_CODE (type) == ARRAY_TYPE) { - /* Must arrange to initialize each element of EXP - from elements of INIT. */ - tree itype = init ? TREE_TYPE (init) : NULL_TREE; - - if (init && !itype) + tree itype; + + /* An array may not be initialized use the parenthesized + initialization form -- unless the initializer is "()". */ + if (init && TREE_CODE (init) == TREE_LIST) { - /* Handle bad initializers like: - class COMPLEX { - public: - double re, im; - COMPLEX(double r = 0.0, double i = 0.0) {re = r; im = i;}; - ~COMPLEX() {}; - }; - - int main(int argc, char **argv) { - COMPLEX zees(1.0, 0.0)[10]; - } - */ error ("bad array initializer"); return error_mark_node; } + /* Must arrange to initialize each element of EXP + from elements of INIT. */ + itype = init ? TREE_TYPE (init) : NULL_TREE; if (cp_type_quals (type) != TYPE_UNQUALIFIED) TREE_TYPE (exp) = TYPE_MAIN_VARIANT (type); if (itype && cp_type_quals (itype) != TYPE_UNQUALIFIED) - TREE_TYPE (init) = TYPE_MAIN_VARIANT (itype); + itype = TREE_TYPE (init) = TYPE_MAIN_VARIANT (itype); stmt_expr = build_vec_init (exp, NULL_TREE, init, - init && same_type_p (TREE_TYPE (init), - TREE_TYPE (exp))); + /*explicit_default_init_p=*/false, + itype && same_type_p (itype, + TREE_TYPE (exp))); TREE_READONLY (exp) = was_const; TREE_THIS_VOLATILE (exp) = was_volatile; TREE_TYPE (exp) = type; @@ -1147,26 +1150,6 @@ build_aggr_init (tree exp, tree init, int flags) return stmt_expr; } -/* Like build_aggr_init, but not just for aggregates. */ - -tree -build_init (tree decl, tree init, int flags) -{ - tree expr; - - if (TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE) - expr = build_aggr_init (decl, init, flags); - else if (CLASS_TYPE_P (TREE_TYPE (decl))) - expr = build_special_member_call (decl, complete_ctor_identifier, - build_tree_list (NULL_TREE, init), - TYPE_BINFO (TREE_TYPE (decl)), - LOOKUP_NORMAL|flags); - else - expr = build (INIT_EXPR, TREE_TYPE (decl), decl, init); - - return expr; -} - static void expand_default_init (tree binfo, tree true_exp, tree exp, tree init, int flags) { @@ -1186,8 +1169,7 @@ expand_default_init (tree binfo, tree true_exp, tree exp, tree init, int flags) && (flags & LOOKUP_ONLYCONVERTING)) { /* Base subobjects should only get direct-initialization. */ - if (true_exp != exp) - abort (); + gcc_assert (true_exp == exp); if (flags & DIRECT_BIND) /* Do nothing. We hit this in two cases: Reference initialization, @@ -1195,12 +1177,11 @@ expand_default_init (tree binfo, tree true_exp, tree exp, tree init, int flags) to run a new constructor; and catching an exception, where we have already built up the constructor call so we could wrap it in an exception region. */; - else if (TREE_CODE (init) == CONSTRUCTOR - && TREE_HAS_CONSTRUCTOR (init)) + else if (BRACE_ENCLOSED_INITIALIZER_P (init)) { /* A brace-enclosed initializer for an aggregate. */ - my_friendly_assert (CP_AGGREGATE_TYPE_P (type), 20021016); - init = digest_init (type, init, (tree *)NULL); + gcc_assert (CP_AGGREGATE_TYPE_P (type)); + init = digest_init (type, init); } else init = ocp_convert (type, init, CONV_IMPLICIT|CONV_FORCE_TEMP, flags); @@ -1211,12 +1192,12 @@ expand_default_init (tree binfo, tree true_exp, tree exp, tree init, int flags) around the TARGET_EXPR for the copy constructor. See initialize_handler_parm. */ { - TREE_OPERAND (init, 0) = build (INIT_EXPR, TREE_TYPE (exp), exp, - TREE_OPERAND (init, 0)); + TREE_OPERAND (init, 0) = build2 (INIT_EXPR, TREE_TYPE (exp), exp, + TREE_OPERAND (init, 0)); TREE_TYPE (init) = void_type_node; } else - init = build (INIT_EXPR, TREE_TYPE (exp), exp, init); + init = build2 (INIT_EXPR, TREE_TYPE (exp), exp, init); TREE_SIDE_EFFECTS (init) = 1; finish_expr_stmt (init); return; @@ -1267,8 +1248,8 @@ expand_aggr_init_1 (tree binfo, tree true_exp, tree exp, tree init, int flags) { tree type = TREE_TYPE (exp); - my_friendly_assert (init != error_mark_node && type != error_mark_node, 211); - my_friendly_assert (building_stmt_tree (), 20021010); + gcc_assert (init != error_mark_node && type != error_mark_node); + gcc_assert (building_stmt_tree ()); /* Use a function returning the desired type to initialize EXP for us. If the function is a constructor, and its first argument is @@ -1277,11 +1258,10 @@ expand_aggr_init_1 (tree binfo, tree true_exp, tree exp, tree init, int flags) as TARGET_EXPRs. */ if (init && TREE_CODE (exp) == VAR_DECL - && TREE_CODE (init) == CONSTRUCTOR - && TREE_HAS_CONSTRUCTOR (init)) + && COMPOUND_LITERAL_P (init)) { /* If store_init_value returns NULL_TREE, the INIT has been - record in the DECL_INITIAL for EXP. That means there's + recorded as the DECL_INITIAL for EXP. That means there's nothing more we have to do. */ init = store_init_value (exp, init); if (init) @@ -1308,42 +1288,12 @@ is_aggr_type (tree type, int or_else) && TREE_CODE (type) != BOUND_TEMPLATE_TEMPLATE_PARM) { if (or_else) - error ("`%T' is not an aggregate type", type); + error ("%qT is not an aggregate type", type); return 0; } return 1; } -/* Like is_aggr_typedef, but returns typedef if successful. */ - -tree -get_aggr_from_typedef (tree name, int or_else) -{ - tree type; - - if (name == error_mark_node) - return NULL_TREE; - - if (IDENTIFIER_HAS_TYPE_VALUE (name)) - type = IDENTIFIER_TYPE_VALUE (name); - else - { - if (or_else) - error ("`%T' fails to be an aggregate typedef", name); - return NULL_TREE; - } - - if (! IS_AGGR_TYPE (type) - && TREE_CODE (type) != TEMPLATE_TYPE_PARM - && TREE_CODE (type) != BOUND_TEMPLATE_TEMPLATE_PARM) - { - if (or_else) - error ("type `%T' is of non-aggregate type", type); - return NULL_TREE; - } - return type; -} - tree get_type_value (tree name) { @@ -1368,148 +1318,55 @@ get_type_value (tree name) @@ This function should be rewritten and placed in search.c. */ tree -build_offset_ref (tree type, tree name, bool address_p) +build_offset_ref (tree type, tree member, bool address_p) { tree decl; - tree member; tree basebinfo = NULL_TREE; - tree orig_name = name; /* class templates can come in as TEMPLATE_DECLs here. */ - if (TREE_CODE (name) == TEMPLATE_DECL) - return name; - - if (dependent_type_p (type) || type_dependent_expression_p (name)) - return build_min_nt (SCOPE_REF, type, name); - - if (TREE_CODE (name) == TEMPLATE_ID_EXPR) - { - /* If the NAME is a TEMPLATE_ID_EXPR, we are looking at - something like `a.template f<int>' or the like. For the most - part, we treat this just like a.f. We do remember, however, - the template-id that was used. */ - name = TREE_OPERAND (orig_name, 0); + if (TREE_CODE (member) == TEMPLATE_DECL) + return member; - if (DECL_P (name)) - name = DECL_NAME (name); - else - { - if (TREE_CODE (name) == COMPONENT_REF) - name = TREE_OPERAND (name, 1); - if (TREE_CODE (name) == OVERLOAD) - name = DECL_NAME (OVL_CURRENT (name)); - } - - my_friendly_assert (TREE_CODE (name) == IDENTIFIER_NODE, 0); - } - - if (type == NULL_TREE) - return error_mark_node; - - /* Handle namespace names fully here. */ - if (TREE_CODE (type) == NAMESPACE_DECL) - { - tree t = lookup_namespace_name (type, name); - if (t == error_mark_node) - return t; - if (TREE_CODE (orig_name) == TEMPLATE_ID_EXPR) - /* Reconstruct the TEMPLATE_ID_EXPR. */ - t = build (TEMPLATE_ID_EXPR, TREE_TYPE (t), - t, TREE_OPERAND (orig_name, 1)); - if (! type_unknown_p (t)) - { - mark_used (t); - t = convert_from_reference (t); - } - return t; - } + if (dependent_type_p (type) || type_dependent_expression_p (member)) + return build_qualified_name (NULL_TREE, type, member, + /*template_p=*/false); + gcc_assert (TYPE_P (type)); if (! is_aggr_type (type, 1)) return error_mark_node; - if (TREE_CODE (name) == BIT_NOT_EXPR) - { - if (! check_dtor_name (type, name)) - error ("qualified type `%T' does not match destructor name `~%T'", - type, TREE_OPERAND (name, 0)); - name = dtor_identifier; - } + gcc_assert (DECL_P (member) || BASELINK_P (member)); + /* Callers should call mark_used before this point. */ + gcc_assert (!DECL_P (member) || TREE_USED (member)); if (!COMPLETE_TYPE_P (complete_type (type)) && !TYPE_BEING_DEFINED (type)) { - error ("incomplete type `%T' does not have member `%D'", type, - name); - return error_mark_node; - } - - /* Set up BASEBINFO for member lookup. */ - decl = maybe_dummy_object (type, &basebinfo); - - if (BASELINK_P (name) || DECL_P (name)) - member = name; - else - { - member = lookup_member (basebinfo, name, 1, 0); - - if (member == error_mark_node) - return error_mark_node; - } - - if (!member) - { - error ("`%D' is not a member of type `%T'", name, type); + error ("incomplete type %qT does not have member %qD", type, member); return error_mark_node; } + /* Entities other than non-static members need no further + processing. */ if (TREE_CODE (member) == TYPE_DECL) - { - TREE_USED (member) = 1; - return member; - } - /* static class members and class-specific enum - values can be returned without further ado. */ + return member; if (TREE_CODE (member) == VAR_DECL || TREE_CODE (member) == CONST_DECL) - { - mark_used (member); - return convert_from_reference (member); - } + return convert_from_reference (member); if (TREE_CODE (member) == FIELD_DECL && DECL_C_BIT_FIELD (member)) { - error ("invalid pointer to bit-field `%D'", member); + error ("invalid pointer to bit-field %qD", member); return error_mark_node; } + /* Set up BASEBINFO for member lookup. */ + decl = maybe_dummy_object (type, &basebinfo); + /* A lot of this logic is now handled in lookup_member. */ if (BASELINK_P (member)) { /* Go from the TREE_BASELINK to the member function info. */ - tree fnfields = member; - tree t = BASELINK_FUNCTIONS (fnfields); - - if (TREE_CODE (orig_name) == TEMPLATE_ID_EXPR) - { - /* The FNFIELDS are going to contain functions that aren't - necessarily templates, and templates that don't - necessarily match the explicit template parameters. We - save all the functions, and the explicit parameters, and - then figure out exactly what to instantiate with what - arguments in instantiate_type. */ - - if (TREE_CODE (t) != OVERLOAD) - /* The code in instantiate_type which will process this - expects to encounter OVERLOADs, not raw functions. */ - t = ovl_cons (t, NULL_TREE); - - t = build (TEMPLATE_ID_EXPR, TREE_TYPE (t), t, - TREE_OPERAND (orig_name, 1)); - t = build (OFFSET_REF, unknown_type_node, decl, t); - - PTRMEM_OK_P (t) = 1; - - return t; - } + tree t = BASELINK_FUNCTIONS (member); if (TREE_CODE (t) != TEMPLATE_ID_EXPR && !really_overloaded_fn (t)) { @@ -1526,26 +1383,22 @@ build_offset_ref (tree type, tree name, bool address_p) (or any class derived from that class). */ if (address_p && DECL_P (t) && DECL_NONSTATIC_MEMBER_P (t)) - perform_or_defer_access_check (TYPE_BINFO (type), t); + perform_or_defer_access_check (TYPE_BINFO (type), t, t); else - perform_or_defer_access_check (basebinfo, t); + perform_or_defer_access_check (basebinfo, t, t); - mark_used (t); if (DECL_STATIC_FUNCTION_P (t)) return t; member = t; } else - { - TREE_TYPE (fnfields) = unknown_type_node; - member = fnfields; - } + TREE_TYPE (member) = unknown_type_node; } else if (address_p && TREE_CODE (member) == FIELD_DECL) /* We need additional test besides the one in check_accessibility_of_qualified_id in case it is a pointer to non-static member. */ - perform_or_defer_access_check (TYPE_BINFO (type), member); + perform_or_defer_access_check (TYPE_BINFO (type), member, member); if (!address_p) { @@ -1571,7 +1424,7 @@ build_offset_ref (tree type, tree name, bool address_p) /* Build a representation of a the qualified name suitable for use as the operand to "&" -- even though the "&" is not actually present. */ - member = build (OFFSET_REF, TREE_TYPE (member), decl, member); + member = build2 (OFFSET_REF, TREE_TYPE (member), decl, member); /* In Microsoft mode, treat a non-static member function as if it were a pointer-to-member. */ if (flag_ms_extensions) @@ -1579,378 +1432,177 @@ build_offset_ref (tree type, tree name, bool address_p) PTRMEM_OK_P (member) = 1; return build_unary_op (ADDR_EXPR, member, 0); } - error ("invalid use of non-static member function `%D'", + error ("invalid use of non-static member function %qD", TREE_OPERAND (member, 1)); - return member; + return error_mark_node; } else if (TREE_CODE (member) == FIELD_DECL) { - error ("invalid use of non-static data member `%D'", member); + error ("invalid use of non-static data member %qD", member); return error_mark_node; } return member; } - /* In member functions, the form `type::name' is no longer - equivalent to `this->type::name', at least not until - resolve_offset_ref. */ - member = build (OFFSET_REF, TREE_TYPE (member), decl, member); + member = build2 (OFFSET_REF, TREE_TYPE (member), decl, member); PTRMEM_OK_P (member) = 1; return member; } -/* If DECL is a `const' declaration, and its value is a known - constant, then return that value. */ - -tree -decl_constant_value (tree decl) -{ - /* When we build a COND_EXPR, we don't know whether it will be used - as an lvalue or as an rvalue. If it is an lvalue, it's not safe - to replace the second and third operands with their - initializers. So, we do that here. */ - if (TREE_CODE (decl) == COND_EXPR) - { - tree d1; - tree d2; - - d1 = decl_constant_value (TREE_OPERAND (decl, 1)); - d2 = decl_constant_value (TREE_OPERAND (decl, 2)); - - if (d1 != TREE_OPERAND (decl, 1) || d2 != TREE_OPERAND (decl, 2)) - return build (COND_EXPR, - TREE_TYPE (decl), - TREE_OPERAND (decl, 0), d1, d2); - } - - while (DECL_P (decl) - && (/* Enumeration constants are constant. */ - TREE_CODE (decl) == CONST_DECL - /* And so are variables with a 'const' type -- unless they - are also 'volatile'. */ - || CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (decl))) - && DECL_INITIAL (decl) - && DECL_INITIAL (decl) != error_mark_node - /* This is invalid if initial value is not constant. If it - has either a function call, a memory reference, or a - variable, then re-evaluating it could give different - results. */ - && TREE_CONSTANT (DECL_INITIAL (decl)) - /* Check for cases where this is sub-optimal, even though - valid. */ - && TREE_CODE (DECL_INITIAL (decl)) != CONSTRUCTOR) - decl = DECL_INITIAL (decl); - return decl; -} - -/* Common subroutines of build_new and build_vec_delete. */ - -/* Call the global __builtin_delete to delete ADDR. */ +/* If DECL is a scalar enumeration constant or variable with a + constant initializer, return the initializer (or, its initializers, + recursively); otherwise, return DECL. If INTEGRAL_P, the + initializer is only returned if DECL is an integral + constant-expression. */ static tree -build_builtin_delete_call (tree addr) +constant_value_1 (tree decl, bool integral_p) { - mark_used (global_delete_fndecl); - return build_call (global_delete_fndecl, build_tree_list (NULL_TREE, addr)); -} - -/* Generate a C++ "new" expression. DECL is either a TREE_LIST - (which needs to go through some sort of groktypename) or it - is the name of the class we are newing. INIT is an initialization value. - It is either an EXPRLIST, an EXPR_NO_COMMAS, or something in braces. - If INIT is void_type_node, it means do *not* call a constructor - for this instance. - - For types with constructors, the data returned is initialized - by the appropriate constructor. - - Whether the type has a constructor or not, if it has a pointer - to a virtual function table, then that pointer is set up - here. - - Unless I am mistaken, a call to new () will return initialized - data regardless of whether the constructor itself is private or - not. NOPE; new fails if the constructor is private (jcm). - - Note that build_new does nothing to assure that any special - alignment requirements of the type are met. Rather, it leaves - it up to malloc to do the right thing. Otherwise, folding to - the right alignment cal cause problems if the user tries to later - free the memory returned by `new'. - - PLACEMENT is the `placement' list for user-defined operator new (). */ - -tree -build_new (tree placement, tree decl, tree init, int use_global_new) -{ - tree type, rval; - tree nelts = NULL_TREE, t; - int has_array = 0; - - if (decl == error_mark_node) - return error_mark_node; - - if (TREE_CODE (decl) == TREE_LIST) - { - tree absdcl = TREE_VALUE (decl); - tree last_absdcl = NULL_TREE; - - if (current_function_decl - && DECL_CONSTRUCTOR_P (current_function_decl)) - my_friendly_assert (immediate_size_expand == 0, 19990926); - - nelts = integer_one_node; - - if (absdcl && TREE_CODE (absdcl) == CALL_EXPR) - abort (); - while (absdcl && TREE_CODE (absdcl) == INDIRECT_REF) + while (TREE_CODE (decl) == CONST_DECL + || (integral_p + ? DECL_INTEGRAL_CONSTANT_VAR_P (decl) + : (TREE_CODE (decl) == VAR_DECL + && CP_TYPE_CONST_NON_VOLATILE_P (TREE_TYPE (decl))))) + { + tree init; + /* Static data members in template classes may have + non-dependent initializers. References to such non-static + data members are not value-dependent, so we must retrieve the + initializer here. The DECL_INITIAL will have the right type, + but will not have been folded because that would prevent us + from performing all appropriate semantic checks at + instantiation time. */ + if (DECL_CLASS_SCOPE_P (decl) + && CLASSTYPE_TEMPLATE_INFO (DECL_CONTEXT (decl)) + && uses_template_parms (CLASSTYPE_TI_ARGS + (DECL_CONTEXT (decl)))) { - last_absdcl = absdcl; - absdcl = TREE_OPERAND (absdcl, 0); - } - - if (absdcl && TREE_CODE (absdcl) == ARRAY_REF) - { - /* Probably meant to be a vec new. */ - tree this_nelts; - - while (TREE_OPERAND (absdcl, 0) - && TREE_CODE (TREE_OPERAND (absdcl, 0)) == ARRAY_REF) - { - last_absdcl = absdcl; - absdcl = TREE_OPERAND (absdcl, 0); - } - - has_array = 1; - this_nelts = TREE_OPERAND (absdcl, 1); - if (this_nelts != error_mark_node) - { - if (this_nelts == NULL_TREE) - error ("new of array type fails to specify size"); - else if (processing_template_decl) - { - nelts = this_nelts; - absdcl = TREE_OPERAND (absdcl, 0); - } - else - { - if (build_expr_type_conversion (WANT_INT | WANT_ENUM, - this_nelts, false) - == NULL_TREE) - pedwarn ("size in array new must have integral type"); - - this_nelts = save_expr (cp_convert (sizetype, this_nelts)); - absdcl = TREE_OPERAND (absdcl, 0); - if (this_nelts == integer_zero_node) - { - warning ("zero size array reserves no space"); - nelts = integer_zero_node; - } - else - nelts = cp_build_binary_op (MULT_EXPR, nelts, this_nelts); - } - } - else - nelts = integer_zero_node; - } - - if (last_absdcl) - TREE_OPERAND (last_absdcl, 0) = absdcl; - else - TREE_VALUE (decl) = absdcl; - - type = groktypename (decl); - if (! type || type == error_mark_node) - return error_mark_node; - } - else if (TREE_CODE (decl) == IDENTIFIER_NODE) - { - if (IDENTIFIER_HAS_TYPE_VALUE (decl)) - { - /* An aggregate type. */ - type = IDENTIFIER_TYPE_VALUE (decl); - decl = TYPE_MAIN_DECL (type); + ++processing_template_decl; + init = fold_non_dependent_expr (DECL_INITIAL (decl)); + --processing_template_decl; } else { - /* A builtin type. */ - decl = lookup_name (decl, 1); - my_friendly_assert (TREE_CODE (decl) == TYPE_DECL, 215); - type = TREE_TYPE (decl); + /* If DECL is a static data member in a template + specialization, we must instantiate it here. The + initializer for the static data member is not processed + until needed; we need it now. */ + mark_used (decl); + init = DECL_INITIAL (decl); } + if (init == error_mark_node) + return decl; + if (!init + || !TREE_TYPE (init) + || (integral_p + ? !INTEGRAL_OR_ENUMERATION_TYPE_P (TREE_TYPE (init)) + : (!TREE_CONSTANT (init) + /* Do not return an aggregate constant (of which + string literals are a special case), as we do not + want to make inadvertent copies of such entities, + and we must be sure that their addresses are the + same everywhere. */ + || TREE_CODE (init) == CONSTRUCTOR + || TREE_CODE (init) == STRING_CST))) + break; + decl = unshare_expr (init); } - else if (TREE_CODE (decl) == TYPE_DECL) - { - type = TREE_TYPE (decl); - } - else - { - type = decl; - decl = TYPE_MAIN_DECL (type); - } - - if (processing_template_decl) - { - if (has_array) - t = tree_cons (tree_cons (NULL_TREE, type, NULL_TREE), - build_min_nt (ARRAY_REF, NULL_TREE, nelts), - NULL_TREE); - else - t = type; - - rval = build_min (NEW_EXPR, build_pointer_type (type), - placement, t, init); - NEW_EXPR_USE_GLOBAL (rval) = use_global_new; - TREE_SIDE_EFFECTS (rval) = 1; - return rval; - } - - /* ``A reference cannot be created by the new operator. A reference - is not an object (8.2.2, 8.4.3), so a pointer to it could not be - returned by new.'' ARM 5.3.3 */ - if (TREE_CODE (type) == REFERENCE_TYPE) - { - error ("new cannot be applied to a reference type"); - type = TREE_TYPE (type); - } - - if (TREE_CODE (type) == FUNCTION_TYPE) - { - error ("new cannot be applied to a function type"); - return error_mark_node; - } - - /* When the object being created is an array, the new-expression yields a - pointer to the initial element (if any) of the array. For example, - both new int and new int[10] return an int*. 5.3.4. */ - if (TREE_CODE (type) == ARRAY_TYPE && has_array == 0) - { - nelts = array_type_nelts_top (type); - has_array = 1; - type = TREE_TYPE (type); - } - - if (has_array) - t = build_nt (ARRAY_REF, type, nelts); - else - t = type; - - rval = build (NEW_EXPR, build_pointer_type (type), placement, t, init); - NEW_EXPR_USE_GLOBAL (rval) = use_global_new; - TREE_SIDE_EFFECTS (rval) = 1; - rval = build_new_1 (rval); - if (rval == error_mark_node) - return error_mark_node; + return decl; +} - /* Wrap it in a NOP_EXPR so warn_if_unused_value doesn't complain. */ - rval = build1 (NOP_EXPR, TREE_TYPE (rval), rval); - TREE_NO_UNUSED_WARNING (rval) = 1; +/* If DECL is a CONST_DECL, or a constant VAR_DECL initialized by + constant of integral or enumeration type, then return that value. + These are those variables permitted in constant expressions by + [5.19/1]. */ - return rval; +tree +integral_constant_value (tree decl) +{ + return constant_value_1 (decl, /*integral_p=*/true); } -/* Given a Java class, return a decl for the corresponding java.lang.Class. */ +/* A more relaxed version of integral_constant_value, used by the + common C/C++ code and by the C++ front-end for optimization + purposes. */ tree -build_java_class_ref (tree type) +decl_constant_value (tree decl) { - tree name = NULL_TREE, class_decl; - static tree CL_suffix = NULL_TREE; - if (CL_suffix == NULL_TREE) - CL_suffix = get_identifier("class$"); - if (jclass_node == NULL_TREE) - { - jclass_node = IDENTIFIER_GLOBAL_VALUE (get_identifier ("jclass")); - if (jclass_node == NULL_TREE) - fatal_error ("call to Java constructor, while `jclass' undefined"); - - jclass_node = TREE_TYPE (jclass_node); - } + return constant_value_1 (decl, + /*integral_p=*/processing_template_decl); +} + +/* Common subroutines of build_new and build_vec_delete. */ - /* Mangle the class$ field. */ - { - tree field; - for (field = TYPE_FIELDS (type); field; field = TREE_CHAIN (field)) - if (DECL_NAME (field) == CL_suffix) - { - mangle_decl (field); - name = DECL_ASSEMBLER_NAME (field); - break; - } - if (!field) - internal_error ("can't find class$"); - } +/* Call the global __builtin_delete to delete ADDR. */ - class_decl = IDENTIFIER_GLOBAL_VALUE (name); - if (class_decl == NULL_TREE) - { - class_decl = build_decl (VAR_DECL, name, TREE_TYPE (jclass_node)); - TREE_STATIC (class_decl) = 1; - DECL_EXTERNAL (class_decl) = 1; - TREE_PUBLIC (class_decl) = 1; - DECL_ARTIFICIAL (class_decl) = 1; - DECL_IGNORED_P (class_decl) = 1; - pushdecl_top_level (class_decl); - make_decl_rtl (class_decl, NULL); - } - return class_decl; +static tree +build_builtin_delete_call (tree addr) +{ + mark_used (global_delete_fndecl); + return build_call (global_delete_fndecl, build_tree_list (NULL_TREE, addr)); } - -/* Returns the size of the cookie to use when allocating an array - whose elements have the indicated TYPE. Assumes that it is already - known that a cookie is needed. */ + +/* Build and return a NEW_EXPR. If NELTS is non-NULL, TYPE[NELTS] is + the type of the object being allocated; otherwise, it's just TYPE. + INIT is the initializer, if any. USE_GLOBAL_NEW is true if the + user explicitly wrote "::operator new". PLACEMENT, if non-NULL, is + the TREE_LIST of arguments to be provided as arguments to a + placement new operator. This routine performs no semantic checks; + it just creates and returns a NEW_EXPR. */ static tree -get_cookie_size (tree type) +build_raw_new_expr (tree placement, tree type, tree nelts, tree init, + int use_global_new) { - tree cookie_size; - - /* We need to allocate an additional max (sizeof (size_t), alignof - (true_type)) bytes. */ - tree sizetype_size; - tree type_align; - - sizetype_size = size_in_bytes (sizetype); - type_align = size_int (TYPE_ALIGN_UNIT (type)); - if (INT_CST_LT_UNSIGNED (type_align, sizetype_size)) - cookie_size = sizetype_size; - else - cookie_size = type_align; + tree new_expr; + + new_expr = build4 (NEW_EXPR, build_pointer_type (type), placement, type, + nelts, init); + NEW_EXPR_USE_GLOBAL (new_expr) = use_global_new; + TREE_SIDE_EFFECTS (new_expr) = 1; - return cookie_size; + return new_expr; } -/* Called from cplus_expand_expr when expanding a NEW_EXPR. The return - value is immediately handed to expand_expr. */ +/* Generate code for a new-expression, including calling the "operator + new" function, initializing the object, and, if an exception occurs + during construction, cleaning up. The arguments are as for + build_raw_new_expr. */ static tree -build_new_1 (tree exp) +build_new_1 (tree placement, tree type, tree nelts, tree init, + bool globally_qualified_p) { - tree placement, init; - tree true_type, size, rval; + tree size, rval; + /* True iff this is a call to "operator new[]" instead of just + "operator new". */ + bool array_p = false; + /* True iff ARRAY_P is true and the bound of the array type is + not necessarily a compile time constant. For example, VLA_P is + true for "new int[f()]". */ + bool vla_p = false; + /* The type being allocated. If ARRAY_P is true, this will be an + ARRAY_TYPE. */ + tree full_type; + /* If ARRAY_P is true, the element type of the array. This is an + never ARRAY_TYPE; for something like "new int[3][4]", the + ELT_TYPE is "int". If ARRAY_P is false, this is the same type as + FULL_TYPE. */ + tree elt_type; /* The type of the new-expression. (This type is always a pointer type.) */ tree pointer_type; - /* The type pointed to by POINTER_TYPE. */ - tree type; - /* The type being allocated. For "new T[...]" this will be an - ARRAY_TYPE. */ - tree full_type; - /* A pointer type pointing to to the FULL_TYPE. */ + /* A pointer type pointing to the FULL_TYPE. */ tree full_pointer_type; tree outer_nelts = NULL_TREE; - tree nelts = NULL_TREE; tree alloc_call, alloc_expr; /* The address returned by the call to "operator new". This node is a VAR_DECL and is therefore reusable. */ tree alloc_node; tree alloc_fn; tree cookie_expr, init_expr; - int has_array = 0; - enum tree_code code; int nothrow, check_new; - /* Nonzero if the user wrote `::new' rather than just `new'. */ - int globally_qualified_p; int use_java_new = 0; /* If non-NULL, the number of extra bytes to allocate at the beginning of the storage allocated for an array-new expression in @@ -1970,143 +1622,174 @@ build_new_1 (tree exp) tree data_addr; tree init_preeval_expr = NULL_TREE; - placement = TREE_OPERAND (exp, 0); - type = TREE_OPERAND (exp, 1); - init = TREE_OPERAND (exp, 2); - globally_qualified_p = NEW_EXPR_USE_GLOBAL (exp); - - if (TREE_CODE (type) == ARRAY_REF) + if (nelts) { - has_array = 1; - nelts = outer_nelts = TREE_OPERAND (type, 1); - type = TREE_OPERAND (type, 0); + tree index; + + outer_nelts = nelts; + array_p = true; - /* Use an incomplete array type to avoid VLA headaches. */ + /* ??? The middle-end will error on us for building a VLA outside a + function context. Methinks that's not it's purvey. So we'll do + our own VLA layout later. */ + vla_p = true; + index = convert (sizetype, nelts); + index = size_binop (MINUS_EXPR, index, size_one_node); + index = build_index_type (index); full_type = build_cplus_array_type (type, NULL_TREE); + /* We need a copy of the type as build_array_type will return a shared copy + of the incomplete array type. */ + full_type = build_distinct_type_copy (full_type); + TYPE_DOMAIN (full_type) = index; } else - full_type = type; - - true_type = type; + { + full_type = type; + if (TREE_CODE (type) == ARRAY_TYPE) + { + array_p = true; + nelts = array_type_nelts_top (type); + outer_nelts = nelts; + type = TREE_TYPE (type); + } + } - code = has_array ? VEC_NEW_EXPR : NEW_EXPR; + if (!complete_type_or_else (type, NULL_TREE)) + return error_mark_node; /* If our base type is an array, then make sure we know how many elements it has. */ - while (TREE_CODE (true_type) == ARRAY_TYPE) + for (elt_type = type; + TREE_CODE (elt_type) == ARRAY_TYPE; + elt_type = TREE_TYPE (elt_type)) + nelts = cp_build_binary_op (MULT_EXPR, nelts, + array_type_nelts_top (elt_type)); + + if (TREE_CODE (elt_type) == VOID_TYPE) { - tree this_nelts = array_type_nelts_top (true_type); - nelts = cp_build_binary_op (MULT_EXPR, nelts, this_nelts); - true_type = TREE_TYPE (true_type); + error ("invalid type %<void%> for new"); + return error_mark_node; } - if (!complete_type_or_else (true_type, exp)) + if (abstract_virtuals_error (NULL_TREE, elt_type)) return error_mark_node; - if (TREE_CODE (true_type) == VOID_TYPE) + is_initialized = (TYPE_NEEDS_CONSTRUCTING (elt_type) || init); + if (CP_TYPE_CONST_P (elt_type) && !is_initialized) { - error ("invalid type `void' for new"); + error ("uninitialized const in %<new%> of %q#T", elt_type); return error_mark_node; } - if (abstract_virtuals_error (NULL_TREE, true_type)) - return error_mark_node; - - is_initialized = (TYPE_NEEDS_CONSTRUCTING (type) || init); - if (CP_TYPE_CONST_P (true_type) && !is_initialized) + size = size_in_bytes (elt_type); + if (array_p) { - error ("uninitialized const in `new' of `%#T'", true_type); - return error_mark_node; + size = size_binop (MULT_EXPR, size, convert (sizetype, nelts)); + if (vla_p) + { + tree n, bitsize; + + /* Do our own VLA layout. Setting TYPE_SIZE/_UNIT is + necessary in order for the <INIT_EXPR <*foo> <CONSTRUCTOR + ...>> to be valid. */ + TYPE_SIZE_UNIT (full_type) = size; + n = convert (bitsizetype, nelts); + bitsize = size_binop (MULT_EXPR, TYPE_SIZE (elt_type), n); + TYPE_SIZE (full_type) = bitsize; + } } - size = size_in_bytes (true_type); - if (has_array) - size = size_binop (MULT_EXPR, size, convert (sizetype, nelts)); + alloc_fn = NULL_TREE; /* Allocate the object. */ - if (! placement && TYPE_FOR_JAVA (true_type)) + if (! placement && TYPE_FOR_JAVA (elt_type)) { - tree class_addr, alloc_decl; - tree class_decl = build_java_class_ref (true_type); - tree class_size = size_in_bytes (true_type); + tree class_addr; + tree class_decl = build_java_class_ref (elt_type); static const char alloc_name[] = "_Jv_AllocObject"; + + if (class_decl == error_mark_node) + return error_mark_node; + use_java_new = 1; - if (!get_global_value_if_present (get_identifier (alloc_name), - &alloc_decl)) + if (!get_global_value_if_present (get_identifier (alloc_name), + &alloc_fn)) { - error ("call to Java constructor with `%s' undefined", alloc_name); + error ("call to Java constructor with %qs undefined", alloc_name); return error_mark_node; } - else if (really_overloaded_fn (alloc_decl)) + else if (really_overloaded_fn (alloc_fn)) { - error ("`%D' should never be overloaded", alloc_decl); + error ("%qD should never be overloaded", alloc_fn); return error_mark_node; } - alloc_decl = OVL_CURRENT (alloc_decl); + alloc_fn = OVL_CURRENT (alloc_fn); class_addr = build1 (ADDR_EXPR, jclass_node, class_decl); alloc_call = (build_function_call - (alloc_decl, - tree_cons (NULL_TREE, class_addr, - build_tree_list (NULL_TREE, class_size)))); + (alloc_fn, + build_tree_list (NULL_TREE, class_addr))); } else { tree fnname; tree fns; - fnname = ansi_opname (code); + fnname = ansi_opname (array_p ? VEC_NEW_EXPR : NEW_EXPR); - if (!globally_qualified_p - && CLASS_TYPE_P (true_type) - && (has_array - ? TYPE_HAS_ARRAY_NEW_OPERATOR (true_type) - : TYPE_HAS_NEW_OPERATOR (true_type))) + if (!globally_qualified_p + && CLASS_TYPE_P (elt_type) + && (array_p + ? TYPE_HAS_ARRAY_NEW_OPERATOR (elt_type) + : TYPE_HAS_NEW_OPERATOR (elt_type))) { /* Use a class-specific operator new. */ /* If a cookie is required, add some extra space. */ - if (has_array && TYPE_VEC_NEW_USES_COOKIE (true_type)) + if (array_p && TYPE_VEC_NEW_USES_COOKIE (elt_type)) { - cookie_size = get_cookie_size (true_type); + cookie_size = targetm.cxx.get_cookie_size (elt_type); size = size_binop (PLUS_EXPR, size, cookie_size); } /* Create the argument list. */ args = tree_cons (NULL_TREE, size, placement); /* Do name-lookup to find the appropriate operator. */ - fns = lookup_fnfields (true_type, fnname, /*protect=*/2); - if (!fns) + fns = lookup_fnfields (elt_type, fnname, /*protect=*/2); + if (fns == NULL_TREE) { - error ("no suitable or ambiguous `%D' found in class `%T'", - fnname, true_type); + error ("no suitable %qD found in class %qT", fnname, elt_type); return error_mark_node; } if (TREE_CODE (fns) == TREE_LIST) { - error ("request for member `%D' is ambiguous", fnname); + error ("request for member %qD is ambiguous", fnname); print_candidates (fns); return error_mark_node; } - alloc_call = build_new_method_call (build_dummy_object (true_type), + alloc_call = build_new_method_call (build_dummy_object (elt_type), fns, args, /*conversion_path=*/NULL_TREE, - LOOKUP_NORMAL); + LOOKUP_NORMAL, + &alloc_fn); } else { /* Use a global operator new. */ /* See if a cookie might be required. */ - if (has_array && TYPE_VEC_NEW_USES_COOKIE (true_type)) - cookie_size = get_cookie_size (true_type); + if (array_p && TYPE_VEC_NEW_USES_COOKIE (elt_type)) + cookie_size = targetm.cxx.get_cookie_size (elt_type); else cookie_size = NULL_TREE; - alloc_call = build_operator_new_call (fnname, placement, - &size, &cookie_size); + alloc_call = build_operator_new_call (fnname, placement, + &size, &cookie_size, + &alloc_fn); } } if (alloc_call == error_mark_node) return error_mark_node; + gcc_assert (alloc_fn != NULL_TREE); + /* In the simple case, we can stop now. */ pointer_type = build_pointer_type (type); if (!cookie_size && !is_initialized) @@ -2120,10 +1803,8 @@ build_new_1 (tree exp) alloc_node = TARGET_EXPR_SLOT (alloc_expr); /* Strip any COMPOUND_EXPRs from ALLOC_CALL. */ - while (TREE_CODE (alloc_call) == COMPOUND_EXPR) + while (TREE_CODE (alloc_call) == COMPOUND_EXPR) alloc_call = TREE_OPERAND (alloc_call, 1); - alloc_fn = get_callee_fndecl (alloc_call); - my_friendly_assert (alloc_fn != NULL_TREE, 20020325); /* Now, check to see if this function is actually a placement allocation function. This can happen even when PLACEMENT is NULL @@ -2135,8 +1816,8 @@ build_new_1 (tree exp) there is no explicit placement argument. If there is more than one argument, or there are variable arguments, then this is a placement allocation function. */ - placement_allocation_fn_p - = (type_num_arguments (TREE_TYPE (alloc_fn)) > 1 + placement_allocation_fn_p + = (type_num_arguments (TREE_TYPE (alloc_fn)) > 1 || varargs_function_p (alloc_fn)); /* Preevaluate the placement args so that we don't reevaluate them for a @@ -2146,8 +1827,8 @@ build_new_1 (tree exp) tree inits; stabilize_call (alloc_call, &inits); if (inits) - alloc_expr = build (COMPOUND_EXPR, TREE_TYPE (alloc_expr), inits, - alloc_expr); + alloc_expr = build2 (COMPOUND_EXPR, TREE_TYPE (alloc_expr), inits, + alloc_expr); } /* unless an allocation function is declared with an empty excep- @@ -2166,19 +1847,32 @@ build_new_1 (tree exp) if (cookie_size) { tree cookie; + tree cookie_ptr; /* Adjust so we're pointing to the start of the object. */ - data_addr = get_target_expr (build (PLUS_EXPR, full_pointer_type, - alloc_node, cookie_size)); + data_addr = get_target_expr (build2 (PLUS_EXPR, full_pointer_type, + alloc_node, cookie_size)); /* Store the number of bytes allocated so that we can know how many elements to destroy later. We use the last sizeof (size_t) bytes to store the number of elements. */ - cookie = build (MINUS_EXPR, build_pointer_type (sizetype), - data_addr, size_in_bytes (sizetype)); - cookie = build_indirect_ref (cookie, NULL); + cookie_ptr = build2 (MINUS_EXPR, build_pointer_type (sizetype), + data_addr, size_in_bytes (sizetype)); + cookie = build_indirect_ref (cookie_ptr, NULL); + + cookie_expr = build2 (MODIFY_EXPR, sizetype, cookie, nelts); - cookie_expr = build (MODIFY_EXPR, sizetype, cookie, nelts); + if (targetm.cxx.cookie_has_size ()) + { + /* Also store the element size. */ + cookie_ptr = build2 (MINUS_EXPR, build_pointer_type (sizetype), + cookie_ptr, size_in_bytes (sizetype)); + cookie = build_indirect_ref (cookie_ptr, NULL); + cookie = build2 (MODIFY_EXPR, sizetype, cookie, + size_in_bytes(elt_type)); + cookie_expr = build2 (COMPOUND_EXPR, TREE_TYPE (cookie_expr), + cookie, cookie_expr); + } data_addr = TARGET_EXPR_SLOT (data_addr); } else @@ -2198,46 +1892,59 @@ 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 && has_array) - pedwarn ("ISO C++ forbids initialization in array new"); - - if (has_array) + 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, TYPE_BINFO (true_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 (init == void_zero_node) + init = build_default_init (full_type, nelts); - if (TREE_CODE (init) == TREE_LIST) - init = build_x_compound_expr_from_list (init, "new initializer"); + 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. */ - else if (TREE_CODE (init) == CONSTRUCTOR - && TREE_TYPE (init) == NULL_TREE) - abort (); + 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); + init_expr = build_modify_expr (init_expr, INIT_EXPR, init); + stable = stabilize_init (init_expr, &init_preeval_expr); + } } if (init_expr == error_mark_node) @@ -2253,27 +1960,26 @@ build_new_1 (tree exp) freed. */ if (flag_exceptions && ! use_java_new) { - enum tree_code dcode = has_array ? VEC_DELETE_EXPR : DELETE_EXPR; + enum tree_code dcode = array_p ? VEC_DELETE_EXPR : DELETE_EXPR; tree cleanup; - int flags = (LOOKUP_NORMAL - | (globally_qualified_p * LOOKUP_GLOBAL)); /* The Standard is unclear here, but the right thing to do is to use the same method for finding deallocation functions that we use for finding allocation functions. */ - flags |= LOOKUP_SPECULATIVELY; - - cleanup = build_op_delete_call (dcode, alloc_node, size, flags, - (placement_allocation_fn_p - ? alloc_call : NULL_TREE)); + cleanup = build_op_delete_call (dcode, alloc_node, size, + globally_qualified_p, + (placement_allocation_fn_p + ? alloc_call : NULL_TREE), + (placement_allocation_fn_p + ? alloc_fn : NULL_TREE)); if (!cleanup) /* We're done. */; else if (stable) /* This is much simpler if we were able to preevaluate all of the arguments to the constructor call. */ - init_expr = build (TRY_CATCH_EXPR, void_type_node, - init_expr, cleanup); + init_expr = build2 (TRY_CATCH_EXPR, void_type_node, + init_expr, cleanup); else /* Ack! First we allocate the memory. Then we set our sentry variable to true, and expand a cleanup that deletes the @@ -2294,18 +2000,18 @@ build_new_1 (tree exp) sentry = TARGET_EXPR_SLOT (begin); TARGET_EXPR_CLEANUP (begin) - = build (COND_EXPR, void_type_node, sentry, - cleanup, void_zero_node); + = build3 (COND_EXPR, void_type_node, sentry, + cleanup, void_zero_node); - end = build (MODIFY_EXPR, TREE_TYPE (sentry), - sentry, boolean_false_node); + end = build2 (MODIFY_EXPR, TREE_TYPE (sentry), + sentry, boolean_false_node); init_expr - = build (COMPOUND_EXPR, void_type_node, begin, - build (COMPOUND_EXPR, void_type_node, init_expr, - end)); + = build2 (COMPOUND_EXPR, void_type_node, begin, + build2 (COMPOUND_EXPR, void_type_node, init_expr, + end)); } - + } } else @@ -2316,9 +2022,9 @@ build_new_1 (tree exp) rval = data_addr; if (init_expr) - rval = build (COMPOUND_EXPR, TREE_TYPE (rval), init_expr, rval); + rval = build2 (COMPOUND_EXPR, TREE_TYPE (rval), init_expr, rval); if (cookie_expr) - rval = build (COMPOUND_EXPR, TREE_TYPE (rval), cookie_expr, rval); + rval = build2 (COMPOUND_EXPR, TREE_TYPE (rval), cookie_expr, rval); if (rval == alloc_node) /* If we don't have an initializer or a cookie, strip the TARGET_EXPR @@ -2335,21 +2041,167 @@ build_new_1 (tree exp) /* Perform the allocation before anything else, so that ALLOC_NODE has been initialized before we start using it. */ - rval = build (COMPOUND_EXPR, TREE_TYPE (rval), alloc_expr, rval); + rval = build2 (COMPOUND_EXPR, TREE_TYPE (rval), alloc_expr, rval); } if (init_preeval_expr) - rval = build (COMPOUND_EXPR, TREE_TYPE (rval), init_preeval_expr, rval); + rval = build2 (COMPOUND_EXPR, TREE_TYPE (rval), init_preeval_expr, rval); /* Convert to the final type. */ rval = build_nop (pointer_type, rval); /* A new-expression is never an lvalue. */ - if (real_lvalue_p (rval)) - rval = build1 (NON_LVALUE_EXPR, TREE_TYPE (rval), rval); + gcc_assert (!lvalue_p (rval)); + + return rval; +} + +/* Generate a representation for a C++ "new" expression. PLACEMENT is + a TREE_LIST of placement-new arguments (or NULL_TREE if none). If + NELTS is NULL, TYPE is the type of the storage to be allocated. If + NELTS is not NULL, then this is an array-new allocation; TYPE is + the type of the elements in the array and NELTS is the number of + elements in the array. INIT, if non-NULL, is the initializer for + the new object, or void_zero_node to indicate an initializer of + "()". If USE_GLOBAL_NEW is true, then the user explicitly wrote + "::new" rather than just "new". */ + +tree +build_new (tree placement, tree type, tree nelts, tree init, + int use_global_new) +{ + tree rval; + tree orig_placement; + tree orig_nelts; + tree orig_init; + + if (placement == error_mark_node || type == error_mark_node + || init == error_mark_node) + return error_mark_node; + + orig_placement = placement; + orig_nelts = nelts; + orig_init = init; + + if (processing_template_decl) + { + if (dependent_type_p (type) + || any_type_dependent_arguments_p (placement) + || (nelts && type_dependent_expression_p (nelts)) + || (init != void_zero_node + && any_type_dependent_arguments_p (init))) + return build_raw_new_expr (placement, type, nelts, init, + use_global_new); + placement = build_non_dependent_args (placement); + if (nelts) + nelts = build_non_dependent_expr (nelts); + if (init != void_zero_node) + init = build_non_dependent_args (init); + } + + if (nelts) + { + if (!build_expr_type_conversion (WANT_INT | WANT_ENUM, nelts, false)) + pedwarn ("size in array new must have integral type"); + nelts = cp_save_expr (cp_convert (sizetype, nelts)); + /* It is valid to allocate a zero-element array: + + [expr.new] + + When the value of the expression in a direct-new-declarator + is zero, the allocation function is called to allocate an + array with no elements. The pointer returned by the + new-expression is non-null. [Note: If the library allocation + function is called, the pointer returned is distinct from the + pointer to any other object.] + + However, that is not generally useful, so we issue a + warning. */ + if (integer_zerop (nelts)) + warning (0, "allocating zero-element array"); + } + + /* ``A reference cannot be created by the new operator. A reference + is not an object (8.2.2, 8.4.3), so a pointer to it could not be + returned by new.'' ARM 5.3.3 */ + if (TREE_CODE (type) == REFERENCE_TYPE) + { + error ("new cannot be applied to a reference type"); + type = TREE_TYPE (type); + } + + if (TREE_CODE (type) == FUNCTION_TYPE) + { + error ("new cannot be applied to a function type"); + return error_mark_node; + } + + rval = build_new_1 (placement, type, nelts, init, use_global_new); + if (rval == error_mark_node) + return error_mark_node; + + if (processing_template_decl) + return build_raw_new_expr (orig_placement, type, orig_nelts, orig_init, + use_global_new); + + /* Wrap it in a NOP_EXPR so warn_if_unused_value doesn't complain. */ + rval = build1 (NOP_EXPR, TREE_TYPE (rval), rval); + TREE_NO_WARNING (rval) = 1; return rval; } + +/* Given a Java class, return a decl for the corresponding java.lang.Class. */ + +tree +build_java_class_ref (tree type) +{ + tree name = NULL_TREE, class_decl; + static tree CL_suffix = NULL_TREE; + if (CL_suffix == NULL_TREE) + CL_suffix = get_identifier("class$"); + if (jclass_node == NULL_TREE) + { + jclass_node = IDENTIFIER_GLOBAL_VALUE (get_identifier ("jclass")); + if (jclass_node == NULL_TREE) + { + error ("call to Java constructor, while %<jclass%> undefined"); + return error_mark_node; + } + jclass_node = TREE_TYPE (jclass_node); + } + + /* Mangle the class$ field. */ + { + tree field; + for (field = TYPE_FIELDS (type); field; field = TREE_CHAIN (field)) + if (DECL_NAME (field) == CL_suffix) + { + mangle_decl (field); + name = DECL_ASSEMBLER_NAME (field); + break; + } + if (!field) + { + error ("can't find %<class$%> in %qT", type); + return error_mark_node; + } + } + + class_decl = IDENTIFIER_GLOBAL_VALUE (name); + if (class_decl == NULL_TREE) + { + class_decl = build_decl (VAR_DECL, name, TREE_TYPE (jclass_node)); + TREE_STATIC (class_decl) = 1; + DECL_EXTERNAL (class_decl) = 1; + TREE_PUBLIC (class_decl) = 1; + DECL_ARTIFICIAL (class_decl) = 1; + DECL_IGNORED_P (class_decl) = 1; + pushdecl_top_level (class_decl); + make_decl_rtl (class_decl); + } + return class_decl; +} static tree build_vec_delete_1 (tree base, tree maxindex, tree type, @@ -2379,8 +2231,7 @@ build_vec_delete_1 (tree base, tree maxindex, tree type, tree controller = NULL_TREE; /* We should only have 1-D arrays here. */ - if (TREE_CODE (type) == ARRAY_TYPE) - abort (); + gcc_assert (TREE_CODE (type) != ARRAY_TYPE); if (! IS_AGGR_TYPE (type) || TYPE_HAS_TRIVIAL_DESTRUCTOR (type)) goto no_destructor; @@ -2391,23 +2242,25 @@ build_vec_delete_1 (tree base, tree maxindex, tree type, tbase = create_temporary_var (ptype); tbase_init = build_modify_expr (tbase, NOP_EXPR, - fold (build (PLUS_EXPR, ptype, + fold_build2 (PLUS_EXPR, ptype, base, - virtual_size))); + virtual_size)); DECL_REGISTER (tbase) = 1; - controller = build (BIND_EXPR, void_type_node, tbase, NULL_TREE, NULL_TREE); + controller = build3 (BIND_EXPR, void_type_node, tbase, + NULL_TREE, NULL_TREE); TREE_SIDE_EFFECTS (controller) = 1; - body = build (EXIT_EXPR, void_type_node, - build (EQ_EXPR, boolean_type_node, base, tbase)); + body = build1 (EXIT_EXPR, void_type_node, + build2 (EQ_EXPR, boolean_type_node, tbase, + fold_convert (ptype, base))); body = build_compound_expr (body, build_modify_expr (tbase, NOP_EXPR, - build (MINUS_EXPR, ptype, tbase, size_exp))); + build2 (MINUS_EXPR, ptype, tbase, size_exp))); body = build_compound_expr (body, build_delete (ptype, tbase, sfk_complete_destructor, LOOKUP_NORMAL|LOOKUP_DESTRUCTOR, 1)); - loop = build (LOOP_EXPR, void_type_node, body); + loop = build1 (LOOP_EXPR, void_type_node, body); loop = build_compound_expr (tbase_init, loop); no_destructor: @@ -2428,11 +2281,11 @@ build_vec_delete_1 (tree base, tree maxindex, tree type, { tree cookie_size; - cookie_size = get_cookie_size (type); - base_tbd + cookie_size = targetm.cxx.get_cookie_size (type); + base_tbd = cp_convert (ptype, cp_build_binary_op (MINUS_EXPR, - cp_convert (string_type_node, + cp_convert (string_type_node, base), cookie_size)); /* True size with header. */ @@ -2440,9 +2293,11 @@ build_vec_delete_1 (tree base, tree maxindex, tree type, } if (auto_delete_vec == sfk_deleting_destructor) - deallocate_expr = build_x_delete (base_tbd, - 2 | use_global_delete, - virtual_size); + deallocate_expr = build_op_delete_call (VEC_DELETE_EXPR, + base_tbd, virtual_size, + use_global_delete & 1, + /*placement=*/NULL_TREE, + /*alloc_fn=*/NULL_TREE); } body = loop; @@ -2452,15 +2307,16 @@ build_vec_delete_1 (tree base, tree maxindex, tree type, body = deallocate_expr; else body = build_compound_expr (body, deallocate_expr); - + if (!body) body = integer_zero_node; - + /* Outermost wrapper: If pointer is null, punt. */ - body = fold (build (COND_EXPR, void_type_node, - fold (build (NE_EXPR, boolean_type_node, base, - integer_zero_node)), - body, integer_zero_node)); + body = fold_build3 (COND_EXPR, void_type_node, + fold_build2 (NE_EXPR, boolean_type_node, base, + convert (TREE_TYPE (base), + integer_zero_node)), + body, integer_zero_node); body = build1 (NOP_EXPR, void_type_node, body); if (controller) @@ -2471,23 +2327,23 @@ build_vec_delete_1 (tree base, tree maxindex, tree type, if (TREE_CODE (base) == SAVE_EXPR) /* Pre-evaluate the SAVE_EXPR outside of the BIND_EXPR. */ - body = build (COMPOUND_EXPR, void_type_node, base, body); + body = build2 (COMPOUND_EXPR, void_type_node, base, body); return convert_to_void (body, /*implicit=*/NULL); } -/* Create an unnamed variable of the indicated TYPE. */ +/* Create an unnamed variable of the indicated TYPE. */ tree create_temporary_var (tree type) { tree decl; - + decl = build_decl (VAR_DECL, NULL_TREE, type); TREE_USED (decl) = 1; DECL_ARTIFICIAL (decl) = 1; - DECL_SOURCE_LOCATION (decl) = input_location; DECL_IGNORED_P (decl) = 1; + DECL_SOURCE_LOCATION (decl) = input_location; DECL_CONTEXT (decl) = current_function_decl; return decl; @@ -2506,8 +2362,8 @@ get_temp_regvar (tree type, tree init) tree decl; decl = create_temporary_var (type); - add_decl_stmt (decl); - + add_decl_expr (decl); + finish_expr_stmt (build_modify_expr (decl, INIT_EXPR, init)); return decl; @@ -2520,8 +2376,12 @@ 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 @@ -2530,7 +2390,9 @@ 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; @@ -2541,7 +2403,7 @@ build_vec_init (tree base, tree maxindex, tree init, int from_array) tree atype = TREE_TYPE (base); /* The type of an element in the array. */ tree type = TREE_TYPE (atype); - /* The element type reached after removing all outer array + /* The element type reached after removing all outer array types. */ tree inner_elt_type; /* The type of a pointer to an element in the array. */ @@ -2550,26 +2412,28 @@ build_vec_init (tree base, tree maxindex, tree init, int from_array) tree compound_stmt; int destroy_temps; tree try_block = NULL_TREE; - tree try_body = NULL_TREE; int num_initialized_elts = 0; bool is_global; - + if (TYPE_DOMAIN (atype)) maxindex = array_type_nelts (atype); 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 - ? (!CLASS_TYPE_P (inner_elt_type) + ? (!CLASS_TYPE_P (inner_elt_type) || !TYPE_HAS_COMPLEX_ASSIGN_REF (inner_elt_type)) : !TYPE_NEEDS_CONSTRUCTING (type)) && ((TREE_CODE (init) == CONSTRUCTOR /* Don't do this if the CONSTRUCTOR might contain something that might throw and require us to clean up. */ - && (CONSTRUCTOR_ELTS (init) == NULL_TREE + && (VEC_empty (constructor_elt, CONSTRUCTOR_ELTS (init)) || ! TYPE_HAS_NONTRIVIAL_DESTRUCTOR (inner_elt_type))) || from_array)) { @@ -2577,7 +2441,7 @@ build_vec_init (tree base, tree maxindex, tree init, int from_array) brace-enclosed initializers. In this case, digest_init and store_constructor will handle the semantics for us. */ - stmt_expr = build (INIT_EXPR, atype, base, init); + stmt_expr = build2 (INIT_EXPR, atype, base, init); return stmt_expr; } @@ -2598,18 +2462,18 @@ build_vec_init (tree base, tree maxindex, tree init, int from_array) ++t1; } } catch (...) { - ... destroy elements that were constructed ... + ... destroy elements that were constructed ... } rval; }) - + We can omit the try and catch blocks if we know that the initialization will never throw an exception, or if the array elements do not have destructors. We can omit the loop completely if - the elements of the array do not have constructors. + the elements of the array do not have constructors. We actually wrap the entire body of the above in a STMT_EXPR, for - tidiness. + tidiness. When copying from array to another, when the array elements have only trivial copy constructors, we should use __builtin_memcpy @@ -2631,20 +2495,18 @@ build_vec_init (tree base, tree maxindex, tree init, int from_array) && from_array != 2) { try_block = begin_try_block (); - try_body = begin_compound_stmt (/*has_no_scope=*/true); } if (init != NULL_TREE && TREE_CODE (init) == CONSTRUCTOR) { /* Do non-default initialization of non-POD arrays resulting from brace-enclosed initializers. */ - - tree elts; + unsigned HOST_WIDE_INT idx; + tree elt; from_array = 0; - for (elts = CONSTRUCTOR_ELTS (init); elts; elts = TREE_CHAIN (elts)) + FOR_EACH_CONSTRUCTOR_VALUE (CONSTRUCTOR_ELTS (init), idx, elt) { - tree elt = TREE_VALUE (elts); tree baseref = build1 (INDIRECT_REF, type, base); num_initialized_elts++; @@ -2668,7 +2530,7 @@ build_vec_init (tree base, tree maxindex, tree init, int from_array) { /* If initializing one array from another, initialize element by element. We rely upon the below calls the do argument - checking. */ + checking. */ if (init) { base2 = decay_conversion (init); @@ -2692,7 +2554,7 @@ 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)))) @@ -2700,23 +2562,21 @@ build_vec_init (tree base, tree maxindex, tree init, int from_array) /* If the ITERATOR is equal to -1, then we don't have to loop; we've already initialized all the elements. */ tree for_stmt; - tree for_body; tree elt_init; + tree to; for_stmt = begin_for_stmt (); finish_for_init_stmt (for_stmt); - finish_for_cond (build (NE_EXPR, boolean_type_node, - iterator, integer_minus_one_node), + finish_for_cond (build2 (NE_EXPR, boolean_type_node, iterator, + build_int_cst (TREE_TYPE (iterator), -1)), for_stmt); finish_for_expr (build_unary_op (PREDECREMENT_EXPR, iterator, 0), for_stmt); - /* Otherwise, loop through the elements. */ - for_body = begin_compound_stmt (/*has_no_scope=*/true); + to = build1 (INDIRECT_REF, type, base); if (from_array) { - tree to = build1 (INDIRECT_REF, type, base); tree from; if (base2) @@ -2731,7 +2591,7 @@ build_vec_init (tree base, tree maxindex, tree init, int from_array) else if (from) elt_init = build_modify_expr (to, NOP_EXPR, from); else - abort (); + gcc_unreachable (); } else if (TREE_CODE (type) == ARRAY_TYPE) { @@ -2739,12 +2599,18 @@ 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); current_stmt_tree ()->stmts_are_full_exprs_p = 0; @@ -2753,7 +2619,6 @@ build_vec_init (tree base, tree maxindex, tree init, int from_array) if (base2) finish_expr_stmt (build_unary_op (PREINCREMENT_EXPR, base2, 0)); - finish_compound_stmt (for_body); finish_for_stmt (for_stmt); } @@ -2767,22 +2632,19 @@ build_vec_init (tree base, tree maxindex, tree init, int from_array) /* Flatten multi-dimensional array since build_vec_delete only expects one-dimensional array. */ if (TREE_CODE (type) == ARRAY_TYPE) - { - m = cp_build_binary_op (MULT_EXPR, m, - array_type_nelts_total (type)); - type = strip_array_types (type); - } + m = cp_build_binary_op (MULT_EXPR, m, + array_type_nelts_total (type)); - finish_compound_stmt (try_body); finish_cleanup_try_block (try_block); - e = build_vec_delete_1 (rval, m, type, sfk_base_destructor, + e = build_vec_delete_1 (rval, m, + inner_elt_type, sfk_base_destructor, /*use_global_delete=*/0); finish_cleanup (e, try_block); } /* The value of the array initialization is the array itself, RVAL is a pointer to the first element. */ - finish_stmt_expr_expr (rval); + finish_stmt_expr_expr (rval, stmt_expr); stmt_expr = finish_init_stmts (is_global, stmt_expr, compound_stmt); @@ -2790,36 +2652,11 @@ build_vec_init (tree base, tree maxindex, tree init, int from_array) atype = build_pointer_type (atype); stmt_expr = build1 (NOP_EXPR, atype, stmt_expr); stmt_expr = build_indirect_ref (stmt_expr, NULL); - + current_stmt_tree ()->stmts_are_full_exprs_p = destroy_temps; return stmt_expr; } -/* Free up storage of type TYPE, at address ADDR. - - TYPE is a POINTER_TYPE and can be ptr_type_node for no special type - of pointer. - - VIRTUAL_SIZE is the amount of storage that was allocated, and is - used as the second argument to operator delete. It can include - things like padding and magic size cookies. It has virtual in it, - because if you have a base pointer and you delete through a virtual - destructor, it should be the size of the dynamic object, not the - static object, see Free Store 12.5 ISO C++. - - This does not call any destructors. */ - -tree -build_x_delete (tree addr, int which_delete, tree virtual_size) -{ - int use_global_delete = which_delete & 1; - int use_vec_delete = !!(which_delete & 2); - enum tree_code code = use_vec_delete ? VEC_DELETE_EXPR : DELETE_EXPR; - int flags = LOOKUP_NORMAL | (use_global_delete * LOOKUP_GLOBAL); - - return build_op_delete_call (code, addr, virtual_size, flags, NULL_TREE); -} - /* Call the DTOR_KIND destructor for EXP. FLAGS are as for build_delete. */ @@ -2843,15 +2680,14 @@ build_dtor_call (tree exp, special_function_kind dtor_kind, int flags) break; default: - abort (); + gcc_unreachable (); } - - exp = convert_from_reference (exp); fn = lookup_fnfields (TREE_TYPE (exp), name, /*protect=*/2); - return build_new_method_call (exp, fn, + return build_new_method_call (exp, fn, /*args=*/NULL_TREE, /*conversion_path=*/NULL_TREE, - flags); + flags, + /*fn_p=*/NULL); } /* Generate a call to a destructor. TYPE is the type to cast ADDR to. @@ -2898,7 +2734,7 @@ build_delete (tree type, tree addr, special_function_kind auto_delete, complete_type (type); if (!COMPLETE_TYPE_P (type)) { - warning ("possible problem detected in invocation of " + warning (0, "possible problem detected in invocation of " "delete operator:"); cxx_incomplete_type_diagnostic (addr, type, 1); inform ("neither the destructor nor the class-specific " @@ -2919,7 +2755,7 @@ build_delete (tree type, tree addr, special_function_kind auto_delete, else if (TREE_CODE (type) == ARRAY_TYPE) { handle_array: - + if (TYPE_DOMAIN (type) == NULL_TREE) { error ("unknown array size in delete"); @@ -2940,24 +2776,26 @@ build_delete (tree type, tree addr, special_function_kind auto_delete, addr = convert_force (build_pointer_type (type), addr, 0); } - my_friendly_assert (IS_AGGR_TYPE (type), 220); + gcc_assert (IS_AGGR_TYPE (type)); if (TYPE_HAS_TRIVIAL_DESTRUCTOR (type)) { if (auto_delete != sfk_deleting_destructor) return void_zero_node; - return build_op_delete_call - (DELETE_EXPR, addr, cxx_sizeof_nowarn (type), - LOOKUP_NORMAL | (use_global_delete * LOOKUP_GLOBAL), - NULL_TREE); + return build_op_delete_call (DELETE_EXPR, addr, + cxx_sizeof_nowarn (type), + use_global_delete, + /*placement=*/NULL_TREE, + /*alloc_fn=*/NULL_TREE); } else { tree do_delete = NULL_TREE; tree ifexp; - my_friendly_assert (TYPE_HAS_DESTRUCTOR (type), 20011213); + if (CLASSTYPE_LAZY_DESTRUCTOR (type)) + lazily_declare_fn (sfk_destructor, type); /* For `::delete x', we must not use the deleting destructor since then we would not be sure to get the global `operator @@ -2984,8 +2822,9 @@ build_delete (tree type, tree addr, special_function_kind auto_delete, do_delete = build_op_delete_call (DELETE_EXPR, addr, cxx_sizeof_nowarn (type), - LOOKUP_NORMAL, - NULL_TREE); + /*global_p=*/false, + /*placement=*/NULL_TREE, + /*alloc_fn=*/NULL_TREE); /* Call the complete object destructor. */ auto_delete = sfk_complete_destructor; } @@ -2995,13 +2834,15 @@ build_delete (tree type, tree addr, special_function_kind auto_delete, /* Make sure we have access to the member op delete, even though we'll actually be calling it from the destructor. */ build_op_delete_call (DELETE_EXPR, addr, cxx_sizeof_nowarn (type), - LOOKUP_NORMAL, NULL_TREE); + /*global_p=*/false, + /*placement=*/NULL_TREE, + /*alloc_fn=*/NULL_TREE); } expr = build_dtor_call (build_indirect_ref (addr, NULL), auto_delete, flags); if (do_delete) - expr = build (COMPOUND_EXPR, void_type_node, expr, do_delete); + expr = build2 (COMPOUND_EXPR, void_type_node, expr, do_delete); if (flags & LOOKUP_DESTRUCTOR) /* Explicit destructor call; don't check for null pointer. */ @@ -3011,8 +2852,8 @@ build_delete (tree type, tree addr, special_function_kind auto_delete, ifexp = fold (cp_build_binary_op (NE_EXPR, addr, integer_zero_node)); if (ifexp != integer_one_node) - expr = build (COND_EXPR, void_type_node, - ifexp, expr, void_zero_node); + expr = build3 (COND_EXPR, void_type_node, + ifexp, expr, void_zero_node); return expr; } @@ -3026,58 +2867,51 @@ build_delete (tree type, tree addr, special_function_kind auto_delete, void push_base_cleanups (void) { - tree binfos; - int i, n_baseclasses; + tree binfo, base_binfo; + int i; tree member; tree expr; + VEC(tree,gc) *vbases; /* Run destructors for all virtual baseclasses. */ - if (TYPE_USES_VIRTUAL_BASECLASSES (current_class_type)) + if (CLASSTYPE_VBASECLASSES (current_class_type)) { - tree vbases; tree cond = (condition_conversion - (build (BIT_AND_EXPR, integer_type_node, - current_in_charge_parm, - integer_two_node))); + (build2 (BIT_AND_EXPR, integer_type_node, + current_in_charge_parm, + integer_two_node))); - vbases = CLASSTYPE_VBASECLASSES (current_class_type); - /* The CLASSTYPE_VBASECLASSES list is in initialization + /* The CLASSTYPE_VBASECLASSES vector is in initialization order, which is also the right order for pushing cleanups. */ - for (; vbases; - vbases = TREE_CHAIN (vbases)) + for (vbases = CLASSTYPE_VBASECLASSES (current_class_type), i = 0; + VEC_iterate (tree, vbases, i, base_binfo); i++) { - tree vbase = TREE_VALUE (vbases); - tree base_type = BINFO_TYPE (vbase); - - if (TYPE_HAS_NONTRIVIAL_DESTRUCTOR (base_type)) + if (TYPE_HAS_NONTRIVIAL_DESTRUCTOR (BINFO_TYPE (base_binfo))) { - expr = build_special_member_call (current_class_ref, + expr = build_special_member_call (current_class_ref, base_dtor_identifier, NULL_TREE, - vbase, - (LOOKUP_NORMAL + base_binfo, + (LOOKUP_NORMAL | LOOKUP_NONVIRTUAL)); - expr = build (COND_EXPR, void_type_node, cond, - expr, void_zero_node); + expr = build3 (COND_EXPR, void_type_node, cond, + expr, void_zero_node); finish_decl_cleanup (NULL_TREE, expr); } } } - binfos = BINFO_BASETYPES (TYPE_BINFO (current_class_type)); - n_baseclasses = CLASSTYPE_N_BASECLASSES (current_class_type); - /* Take care of the remaining baseclasses. */ - for (i = 0; i < n_baseclasses; i++) + for (binfo = TYPE_BINFO (current_class_type), i = 0; + BINFO_BASE_ITERATE (binfo, i, base_binfo); i++) { - tree base_binfo = TREE_VEC_ELT (binfos, i); if (TYPE_HAS_TRIVIAL_DESTRUCTOR (BINFO_TYPE (base_binfo)) - || TREE_VIA_VIRTUAL (base_binfo)) + || BINFO_VIRTUAL_P (base_binfo)) continue; - expr = build_special_member_call (current_class_ref, + expr = build_special_member_call (current_class_ref, base_dtor_identifier, - NULL_TREE, base_binfo, + NULL_TREE, base_binfo, LOOKUP_NORMAL | LOOKUP_NONVIRTUAL); finish_decl_cleanup (NULL_TREE, expr); } @@ -3085,12 +2919,14 @@ push_base_cleanups (void) for (member = TYPE_FIELDS (current_class_type); member; member = TREE_CHAIN (member)) { - if (TREE_CODE (member) != FIELD_DECL || DECL_ARTIFICIAL (member)) + if (TREE_TYPE (member) == error_mark_node + || TREE_CODE (member) != FIELD_DECL + || DECL_ARTIFICIAL (member)) continue; if (TYPE_HAS_NONTRIVIAL_DESTRUCTOR (TREE_TYPE (member))) { - tree this_member = (build_class_member_access_expr - (current_class_ref, member, + tree this_member = (build_class_member_access_expr + (current_class_ref, member, /*access_path=*/NULL_TREE, /*preserve_reference=*/false)); tree this_type = TREE_TYPE (member); @@ -3103,31 +2939,6 @@ push_base_cleanups (void) } } -/* For type TYPE, delete the virtual baseclass objects of DECL. */ - -tree -build_vbase_delete (tree type, tree decl) -{ - tree vbases = CLASSTYPE_VBASECLASSES (type); - tree result; - tree addr = build_unary_op (ADDR_EXPR, decl, 0); - - my_friendly_assert (addr != error_mark_node, 222); - - for (result = convert_to_void (integer_zero_node, NULL); - vbases; vbases = TREE_CHAIN (vbases)) - { - tree base_addr = convert_force - (build_pointer_type (BINFO_TYPE (TREE_VALUE (vbases))), addr, 0); - tree base_delete = build_delete - (TREE_TYPE (base_addr), base_addr, sfk_base_destructor, - LOOKUP_NORMAL|LOOKUP_DESTRUCTOR, 0); - - result = build_compound_expr (result, base_delete); - } - return result; -} - /* Build a C++ vector delete expression. MAXINDEX is the number of elements to be deleted. ELT_SIZE is the nominal size of each element in the vector. @@ -3165,10 +2976,10 @@ build_vec_delete (tree base, tree maxindex, base = TARGET_EXPR_SLOT (base_init); } type = strip_array_types (TREE_TYPE (type)); - cookie_addr = build (MINUS_EXPR, - build_pointer_type (sizetype), - base, - TYPE_SIZE_UNIT (sizetype)); + cookie_addr = build2 (MINUS_EXPR, + build_pointer_type (sizetype), + base, + TYPE_SIZE_UNIT (sizetype)); maxindex = build_indirect_ref (cookie_addr, NULL); } else if (TREE_CODE (type) == ARRAY_TYPE) @@ -3194,7 +3005,7 @@ build_vec_delete (tree base, tree maxindex, rval = build_vec_delete_1 (base, maxindex, type, auto_delete_vec, use_global_delete); if (base_init) - rval = build (COMPOUND_EXPR, TREE_TYPE (rval), base_init, rval); + rval = build2 (COMPOUND_EXPR, TREE_TYPE (rval), base_init, rval); return rval; } |