r254843 - in /trunk/gcc: cp/ChangeLog cp/cp-tre...

[jason@gcc.gnu.org]

Author: jason
Date: Thu Nov 16 20:13:48 2017
New Revision: 254843

URL: https://gcc.gnu.org/viewcvs?rev=254843&root=gcc&view=rev
Log:
	PR c++/79092 - non-type args of different types are different

	* tree.c (cp_tree_equal): Check the type of constants.
	* pt.c (unify) [TEMPLATE_PARM_INDEX]: Handle UNIFY_ALLOW_INTEGER
	when comparing to previously deduced argument.
	(maybe_convert_nontype_argument): New.
	(convert_nontype_argument): Call it.
	(tsubst_copy_and_build): Handle partial instantiation of
	IMPLICIT_CONV_EXPR.
	(unify): Ignore type when deducing from array bound.
	(dependent_type_p_r): Handle DEFERRED_NOEXCEPT.
	(value_dependent_expression_p): Any type-dependent expression is
	value-dependent.  Handle IMPLICIT_CONV_EXPR.
	* cp-tree.h (IMPLICIT_CONV_EXPR_NONTYPE_ARG): New.
	* mangle.c (write_template_arg): Strip IMPLICIT_CONV_EXPR.

Added:
    trunk/gcc/testsuite/g++.dg/cpp1z/nontype-auto12.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/cp-tree.h
    trunk/gcc/cp/mangle.c
    trunk/gcc/cp/pt.c
    trunk/gcc/cp/tree.c