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re PR c++/34364 (class& is not known as as a class-type anymore after dynamic_cast)

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PR c++/34364
	* rtti.c (build_dynamic_cast): Call convert_from_reference even for
	dynamic_cast in a template.

	* g++.dg/rtti/dyncast2.C: New test.

From-SVN: r130770
This commit is contained in:
Jakub Jelinek 2007-12-11 09:20:15 +01:00 • committed by Jakub Jelinek
parent 67689d1ad6
commit 61a861e686
4 changed files with 43 additions and 2 deletions
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6
gcc/cp/ChangeLog
View file

@ -1,3 +1,9 @@
2007-12-11 Jakub Jelinek <jakub@redhat.com>
PR c++/34364
* rtti.c (build_dynamic_cast): Call convert_from_reference even for
dynamic_cast in a template.
2007-12-10 Simon Martin <simartin@users.sourceforge.net>
PR c++/34059

3
gcc/cp/rtti.c
View file

@ -728,8 +728,7 @@ build_dynamic_cast (tree type, tree expr)
{
expr = build_min (DYNAMIC_CAST_EXPR, type, expr);
TREE_SIDE_EFFECTS (expr) = 1;
return expr;
return convert_from_reference (expr);
}
return convert_from_reference (build_dynamic_cast_1 (type, expr));

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2007-12-11 Jakub Jelinek <jakub@redhat.com>
PR c++/34364
* g++.dg/rtti/dyncast2.C: New test.
2007-12-11 Uros Bizjak <ubizjak@gmail.com>
PR tree-optimization/34407

31
gcc/testsuite/g++.dg/rtti/dyncast2.C Normal file
View file

@ -0,0 +1,31 @@
// PR c++/34364
// { dg-do run }
struct A
{
virtual ~A () {}
};
struct B : public A
{
template <typename T> struct C
{
static void f (A &a)
{
dynamic_cast <B &>(a).g ();
}
};
B () : c (6) {}
void g () { c++; }
int c;
};
B b;
int
main (void)
{
B::C<int>::f (b);
return b.c != 7;
}