gcc/

	* rtl.h (simplify_replace_fn_rtx): Declare.
	(wrap_constant, unwrap_constant): Delete.
	* cfgexpand.c (unwrap_constant, wrap_constant): Delete.
	(expand_debug_expr): Don't call wrap_constant.
	* combine.c (rtx_subst_pair): Only define for AUTO_INC_DEC.
	(auto_adjust_pair): Fold into...
	(propagate_for_debug_subst): ...here.  Only define for AUTO_INC_DEC.
	Just return a new value.
	(propagate_for_debug): Use simplify_replace_fn_rtx for AUTO_INC_DEC,
	otherwise use simplify_replace_rtx.
	* cselib.c (wrap_constant): Reinstate old definition.
	(cselib_expand_value_rtx_1): Don't wrap constants.
	* gcse.c (try_replace_reg): Don't use copy_rtx in the call to
	simplify_replace_rtx.
	(bypass_block): Fix formatting in calls to simplify_replace_rtx.
	* reload1.c (reload): Skip all uses for an insn before adjusting it.
	Use simplify_replace_rtx.
	* simplify-rtx.c (simplify_replace_fn_rtx): New function,
	adapted from...
	(simplify_replace_rtx): ...here.  Turn into a wrapper for
	simplify_replace_fn_rtx.
	(simplify_unary_operation): Don't unwrap CONSTs.
	* var-tracking.c (check_wrap_constant): Delete.
	(vt_expand_loc_callback): Don't call it.
	(vt_expand_loc): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@153037 138bc75d-0d04-0410-961f-82ee72b054a4

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