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re PR c++/42567 ([C++0x] ICE with auto in type_unification_real, at cp/pt.c:13310)

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PR c++/42567
	* semantics.c (describable_type): Remove decltype comment and
	semantics.

From-SVN: r155627
This commit is contained in:
Jason Merrill 2010-01-04 12:53:29 -05:00 committed by Jason Merrill
parent 5805e48d6c
commit 4b4a42c40a
4 changed files with 24 additions and 6 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2010-01-04 Jason Merrill <jason@redhat.com>
PR c++/42567
* semantics.c (describable_type): Remove decltype comment and
semantics.
Copyright (C) 2010 Free Software Foundation, Inc.

9
gcc/cp/semantics.c
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@ -4690,10 +4690,8 @@ finish_static_assert (tree condition, tree message, location_t location,
}
}
/* Returns decltype((EXPR)) for cases where we can drop the decltype and
just return the type even though EXPR is a type-dependent expression.
The ABI specifies which cases this applies to, which is a subset of the
possible cases. */
/* Returns the type of EXPR for cases where we can determine it even though
EXPR is a type-dependent expression. */
tree
describable_type (tree expr)
@ -4717,8 +4715,7 @@ describable_type (tree expr)
case PARM_DECL:
case RESULT_DECL:
case FUNCTION_DECL:
/* Named rvalue reference becomes lvalue. */
type = build_reference_type (non_reference (TREE_TYPE (expr)));
return TREE_TYPE (expr);
break;
case NEW_EXPR:

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2010-01-04 Jason Merrill <jason@redhat.com>
PR c++/42567
* g++.dg/cpp0x/auto17.C: New.
2010-01-04 Rafael Avila de Espindola <espindola@google.com>
* gcc.dg/lto/20100104_0.c: New.

10
gcc/testsuite/g++.dg/cpp0x/auto17.C Normal file
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@ -0,0 +1,10 @@
// PR c++/42567
// { dg-options "-std=c++0x" }
template<typename B>
struct A {
template<typename C>
void fn(C c) {
auto& key = *c;
}
};