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re PR c++/10091 ([parisc] ICE in cp_expr_size, at cp/cp-lang.c:307)

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PR c++/10091
        * expr.c (expand_expr) [ADDR_EXPR]: Disallow taking the address of
        an unaligned member of TREE_ADDRESSABLE type.
        * cp/typeck.c (build_class_member_access_expr): Compare
        TYPE_MAIN_VARIANTs.

From-SVN: r64520
This commit is contained in:
Jason Merrill 2003-03-17 23:10:45 -05:00 committed by Jason Merrill
parent ffcfcb5fd9
commit bdaa131bd0
4 changed files with 32 additions and 10 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2003-03-17 Jason Merrill <jason@redhat.com>
PR c++/10091
* expr.c (expand_expr) [ADDR_EXPR]: Disallow taking the address of
an unaligned member of TREE_ADDRESSABLE type.
2003-03-18 Alan Modra <amodra@bigpond.net.au>
* config/rs6000/linux64.h (MASK_PROFILE_KERNEL): Define.

6
gcc/cp/ChangeLog
View File

@ -1,3 +1,9 @@
2003-03-17 Jason Merrill <jason@redhat.com>
PR c++/10091
* typeck.c (build_class_member_access_expr): Compare
TYPE_MAIN_VARIANTs.
2003-03-17 Mark Mitchell <mark@codesourcery.com>
PR c++/9639

5
gcc/cp/typeck.c
View File

@ -1941,7 +1941,8 @@ build_class_member_access_expr (tree object, tree member,
&& integer_zerop (TREE_OPERAND (object, 0)));
/* Convert OBJECT to the type of MEMBER. */
if (!same_type_p (object_type, member_scope))
if (!same_type_p (TYPE_MAIN_VARIANT (object_type),
TYPE_MAIN_VARIANT (member_scope)))
{
tree binfo;
base_kind kind;
@ -1951,7 +1952,7 @@ build_class_member_access_expr (tree object, tree member,
if (binfo == error_mark_node)
return error_mark_node;
/* It is invalid to use to try to get to a virtual base of a
/* It is invalid to try to get to a virtual base of a
NULL object. The most common cause is invalid use of
offsetof macro. */
if (null_object_p && kind == bk_via_virtual)

25
gcc/expr.c
View File

@ -9243,21 +9243,30 @@ expand_expr (exp, target, tmode, modifier)
&& MEM_ALIGN (op0) < BIGGEST_ALIGNMENT)
{
tree inner_type = TREE_TYPE (TREE_OPERAND (exp, 0));
rtx new
= assign_stack_temp_for_type
(TYPE_MODE (inner_type),
MEM_SIZE (op0) ? INTVAL (MEM_SIZE (op0))
: int_size_in_bytes (inner_type),
1, build_qualified_type (inner_type,
(TYPE_QUALS (inner_type)
| TYPE_QUAL_CONST)));
rtx new;
if (TYPE_ALIGN_OK (inner_type))
abort ();
if (TREE_ADDRESSABLE (inner_type))
{
/* We can't make a bitwise copy of this object, so fail. */
error ("cannot take the address of an unaligned member");
return const0_rtx;
}
new = assign_stack_temp_for_type
(TYPE_MODE (inner_type),
MEM_SIZE (op0) ? INTVAL (MEM_SIZE (op0))
: int_size_in_bytes (inner_type),
1, build_qualified_type (inner_type,
(TYPE_QUALS (inner_type)
| TYPE_QUAL_CONST)));
emit_block_move (new, op0, expr_size (TREE_OPERAND (exp, 0)),
(modifier == EXPAND_STACK_PARM
? BLOCK_OP_CALL_PARM : BLOCK_OP_NORMAL));
op0 = new;
}