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re PR c++/38877 (Revision 143404 caused ICE on 447.dealII in SPEC CPU 2006) 

PR c++/38877
        * tree.c (lvalue_p_1): Allow non-fields in COMPONENT_REF.
        * init.c (build_new): Don't call describable_type unless we
        have an auto.

From-SVN: r143446
This commit is contained in:
Jason Merrill 2009-01-16 17:36:32 -05:00 committed by Jason Merrill
parent db8470f688
commit b7da27c2e2
4 changed files with 43 additions and 6 deletions
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5
gcc/cp/ChangeLog
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@ -1,5 +1,10 @@
2009-01-16 Jason Merrill <jason@redhat.com>
PR c++/38877
* tree.c (lvalue_p_1): Allow non-fields in COMPONENT_REF.
* init.c (build_new): Don't call describable_type unless we
have an auto.
PR c++/29470
* pt.c (tsubst_decl) [USING_DECL]: Propagate access flags.

5
gcc/cp/init.c
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@ -2334,11 +2334,10 @@ build_new (tree placement, tree type, tree nelts, tree init,
orig_nelts = nelts;
orig_init = init;
if (nelts == NULL_TREE && init != void_zero_node && list_length (init) == 1
&& describable_type (TREE_VALUE (init)))
if (nelts == NULL_TREE && init != void_zero_node && list_length (init) == 1)
{
tree auto_node = type_uses_auto (type);
if (auto_node)
if (auto_node && describable_type (TREE_VALUE (init)))
type = do_auto_deduction (type, TREE_VALUE (init), auto_node);
}

8
gcc/cp/tree.c
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@ -114,9 +114,11 @@ lvalue_p_1 (tree ref,
;
else if (is_overloaded_fn (TREE_OPERAND (ref, 1)))
/* The "field" can be a FUNCTION_DECL or an OVERLOAD in some
situations. */
op1_lvalue_kind = lvalue_p_1 (TREE_OPERAND (ref, 1),
treat_class_rvalues_as_lvalues);
situations. If we're seeing a COMPONENT_REF, it's a non-static
member, so it isn't an lvalue. */
op1_lvalue_kind = clk_none;
else if (TREE_CODE (TREE_OPERAND (ref, 1)) != FIELD_DECL)
/* This can be IDENTIFIER_NODE in a template. */;
else if (DECL_C_BIT_FIELD (TREE_OPERAND (ref, 1)))
{
/* Clear the ordinary bit. If this object was a class

31
gcc/testsuite/g++.dg/template/lvalue1.C Normal file
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@ -0,0 +1,31 @@
// PR c++/38877
template<class _T1, class _T2>
struct pair
{
typedef _T1 first_type;
typedef _T2 second_type;
_T1 first;
_T2 second;
pair () : first(), second() { }
pair(const _T1& __a, const _T2& __b)
: first(__a), second(__b) { }
};
template<class _T1, class _T2>
inline pair<_T1, _T2>
make_pair(_T1 __x, _T2 __y)
{
return pair<_T1, _T2>(__x, __y);
}
template <int dim> class bar;
template <int dim>
pair<bar<dim> *, unsigned int>
foo (unsigned int position)
{
const pair<int,unsigned int> tmp;
return make_pair (new bar<dim>(tmp.first),
position);
}