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re PR c++/45894 ([C++0x] ICE: segmentation fault with -Wall) 

PR c++/45894
	* tree.c (lvalue_kind): Don't crash if ref has NULL type.

	* g++.dg/warn/Wsequence-point-2.C: New test.

From-SVN: r166481
This commit is contained in:
Jakub Jelinek 2010-11-09 12:52:59 +01:00 committed by Jakub Jelinek
parent b04533af33
commit 8810610ef1
4 changed files with 40 additions and 1 deletions
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5
gcc/cp/ChangeLog
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@ -1,3 +1,8 @@
2010-11-09 Jakub Jelinek <jakub@redhat.com>
PR c++/45894
* tree.c (lvalue_kind): Don't crash if ref has NULL type.
2010-11-08 Jason Merrill <jason@redhat.com> 2010-11-08 Jason Merrill <jason@redhat.com>
PR c++/46382 PR c++/46382

3
gcc/cp/tree.c
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@ -67,7 +67,8 @@ lvalue_kind (const_tree ref)
== REFERENCE_TYPE) == REFERENCE_TYPE)
return lvalue_kind (TREE_OPERAND (ref, 0)); return lvalue_kind (TREE_OPERAND (ref, 0));
if (TREE_CODE (TREE_TYPE (ref)) == REFERENCE_TYPE) if (TREE_TYPE (ref)
&& TREE_CODE (TREE_TYPE (ref)) == REFERENCE_TYPE)
{ {
/* unnamed rvalue references are rvalues */ /* unnamed rvalue references are rvalues */
if (TYPE_REF_IS_RVALUE (TREE_TYPE (ref)) if (TYPE_REF_IS_RVALUE (TREE_TYPE (ref))

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2010-11-09 Jakub Jelinek <jakub@redhat.com>
PR c++/45894
* g++.dg/warn/Wsequence-point-2.C: New test.
2010-11-09 Janus Weil <janus@gcc.gnu.org> 2010-11-09 Janus Weil <janus@gcc.gnu.org>
PR fortran/46313 PR fortran/46313

28
gcc/testsuite/g++.dg/warn/Wsequence-point-2.C Normal file
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@ -0,0 +1,28 @@
// PR c++/45894
// { dg-do compile }
// { dg-options "-std=c++0x -Wsequence-point" }
struct F
{
template <typename = int>
void bar ();
};
template <typename = int>
struct V
{
V (const V &) { F::bar <>; }
};
struct C
{
V <> v;
};
struct B
{
C f ();
};
struct A
{
C c;
B b;
A () : c (b.f ()) { }
};