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C++ PATCH for c++/44870 (wrong overload resolution error in template)

Message ID 4DE6B5AB.5080404@redhat.com
State New
Headers show

Commit Message

Jason Merrill June 1, 2011, 9:56 p.m. UTC 
On 05/31/2011 02:05 PM, Jason Merrill wrote:
> So this patch makes us look through NON_DEPENDENT_EXPR at the actual
> underlying tree structure.

It occurred to me that if we're going to do this, we don't need to keep 
reference INDIRECT_REFs outside NON_DEPENDENT_EXPR.

Tested x86_64-pc-linux-gnu, applied to trunk.
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Patch

commit 338548764b17eeb838383331990cdc0c98dc7b60
Author: Jason Merrill <jason@redhat.com>
Date:   Wed Jun 1 14:08:37 2011 -0400

    	* pt.c (build_non_dependent_expr): Remove special handling of
    	REFERENCE_REF_P.

diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index f62d893..03398f4 100644
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -19198,12 +19198,6 @@  build_non_dependent_expr (tree expr)
 		   TREE_OPERAND (expr, 0),
 		   build_non_dependent_expr (TREE_OPERAND (expr, 1)));
 
-  /* Keep dereferences outside the NON_DEPENDENT_EXPR so lvalue_kind
-     doesn't need to look inside.  */
-  if (REFERENCE_REF_P (expr))
-    return convert_from_reference (build_non_dependent_expr
-				   (TREE_OPERAND (expr, 0)));
-
   /* If the type is unknown, it can't really be non-dependent */
   gcc_assert (TREE_TYPE (expr) != unknown_type_node);