r222173 - in /trunk/gcc: ChangeLog cfgexpand.c ...

[vries@gcc.gnu.org]

Author: vries
Date: Fri Apr 17 09:26:59 2015
New Revision: 222173

URL: https://gcc.gnu.org/viewcvs?rev=222173&root=gcc&view=rev
Log:
Postpone expanding va_arg until pass_stdarg

2015-04-17  Tom de Vries  <tom@codesourcery.com>
	    Michael Matz  <matz@suse.de>

	* gimple-iterator.c (update_modified_stmts): Remove static.
	* gimple-iterator.h (update_modified_stmts): Declare.
	* gimplify.c (gimplify_modify_expr): Handle IFN_VA_ARG.
	(gimplify_va_arg_internal): New function.
	(gimplify_va_arg_expr): Use IFN_VA_ARG.
	* gimplify.h (gimplify_va_arg_internal): Declare.
	* internal-fn.c (expand_VA_ARG): New unreachable function.
	* internal-fn.def (VA_ARG): New DEF_INTERNAL_FN.
	* tree-stdarg.c (gimple_call_ifn_va_arg_p, expand_ifn_va_arg_1)
	(expand_ifn_va_arg): New function.
	(pass_data_stdarg): Add PROP_gimple_lva to properties_provided field.
	(pass_stdarg::execute): Call expand_ifn_va_arg.
	(pass_data_lower_vaarg): New pass_data.
	(pass_lower_vaarg): New gimple_opt_pass.
	(pass_lower_vaarg::gate, pass_lower_vaarg::execute)
	(make_pass_lower_vaarg): New function.
	* cfgexpand.c (pass_data_expand): Add PROP_gimple_lva to
	properties_required field.
	* passes.def (all_passes): Add pass_lower_vaarg.
	* tree-pass.h (PROP_gimple_lva): Add define.
	(make_pass_lower_vaarg): Declare.

	* gcc.dg/tree-ssa/stdarg-2.c: Change f15 scan-tree-dump for target
	x86_64-*-*.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cfgexpand.c
    trunk/gcc/gimple-iterator.c
    trunk/gcc/gimple-iterator.h
    trunk/gcc/gimplify.c
    trunk/gcc/gimplify.h
    trunk/gcc/internal-fn.c
    trunk/gcc/internal-fn.def
    trunk/gcc/passes.def
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/stdarg-2.c
    trunk/gcc/tree-pass.h
    trunk/gcc/tree-stdarg.c