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Set PROP_gimple_lva for functions without IFN_VA_ARG

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2015-04-17  Tom de Vries  <tom@codesourcery.com>

	* gimplify.c (gimplify_function_tree): Tentatively set PROP_gimple_lva
	in cfun->curr_properties.
	(gimplify_va_arg_expr): Clear PROP_gimple_lva in cfun->curr_properties
	if we generate an IFN_VA_ARG.
	* tree-inline.c (expand_call_inline): Reset PROP_gimple_lva in dest
	function if PROP_gimple_lva is not set in src function.

From-SVN: r222174
This commit is contained in:
Tom de Vries 2015-04-17 09:27:08 +00:00 committed by Tom de Vries
parent f8e89441bc
commit d67cb100c6
3 changed files with 26 additions and 1 deletions
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9
gcc/ChangeLog
View File

@ -1,3 +1,12 @@
2015-04-17 Tom de Vries <tom@codesourcery.com>
* gimplify.c (gimplify_function_tree): Tentatively set PROP_gimple_lva
in cfun->curr_properties.
(gimplify_va_arg_expr): Clear PROP_gimple_lva in cfun->curr_properties
if we generate an IFN_VA_ARG.
* tree-inline.c (expand_call_inline): Reset PROP_gimple_lva in dest
function if PROP_gimple_lva is not set in src function.
2015-04-17 Tom de Vries <tom@codesourcery.com>
Michael Matz <matz@suse.de>

10
gcc/gimplify.c
View File

@ -9201,6 +9201,10 @@ gimplify_function_tree (tree fndecl)
else
push_struct_function (fndecl);
/* Tentatively set PROP_gimple_lva here, and reset it in gimplify_va_arg_expr
if necessary. */
cfun->curr_properties |= PROP_gimple_lva;
for (parm = DECL_ARGUMENTS (fndecl); parm ; parm = DECL_CHAIN (parm))
{
/* Preliminarily mark non-addressed complex variables as eligible
@ -9295,7 +9299,7 @@ gimplify_function_tree (tree fndecl)
}
DECL_SAVED_TREE (fndecl) = NULL_TREE;
cfun->curr_properties = PROP_gimple_any;
cfun->curr_properties |= PROP_gimple_any;
pop_cfun ();
}
@ -9414,6 +9418,10 @@ gimplify_va_arg_expr (tree *expr_p, gimple_seq *pre_p,
tag = build_int_cst (build_pointer_type (type), 0);
*expr_p = build_call_expr_internal_loc (loc, IFN_VA_ARG, type, 2, ap, tag);
/* Clear the tentatively set PROP_gimple_lva, to indicate that IFN_VA_ARG
needs to be expanded. */
cfun->curr_properties &= ~PROP_gimple_lva;
return GS_OK;
}

8
gcc/tree-inline.c
View File

@ -4526,6 +4526,14 @@ expand_call_inline (basic_block bb, gimple stmt, copy_body_data *id)
id->src_cfun = DECL_STRUCT_FUNCTION (fn);
id->call_stmt = stmt;
/* If the the src function contains an IFN_VA_ARG, then so will the dst
function after inlining. */
if ((id->src_cfun->curr_properties & PROP_gimple_lva) == 0)
{
struct function *dst_cfun = DECL_STRUCT_FUNCTION (id->dst_fn);
dst_cfun->curr_properties &= ~PROP_gimple_lva;
}
gcc_assert (!id->src_cfun->after_inlining);
id->entry_bb = bb;