vn_driver Class Reference

#include <tree-ssa-sccvn.h>

Collaboration diagram for vn_driver:

Public Member Functions
	vn_driver (function *, bool iterate, bool eliminate, bool want_value_ids=false, vn_lookup_kind=VN_WALKREWRITE)
	vn_driver (function *, edge entry, bitmap exit_bbs, bool iterate, bool eliminate, bool skip_entry_phis, vn_lookup_kind)
	~vn_driver ()
unsigned	finalize (bitmap inserted_exprs=NULL)
unsigned	todo () const

Private Member Functions
	DISABLE_COPY_AND_ASSIGN (vn_driver)

Private Attributes
class rpo_elim *	m_avail
int *	m_bb_to_rpo
unsigned	m_todo
bool	m_eliminate

Detailed Description

Value-numbers a function or a region.   

Constructor & Destructor Documentation

vn_driver() [1/2]

vn_driver::vn_driver	(	function *	fn,
		bool	iterate,
		bool	eliminate,
		bool	want_value_ids = false,
		vn_lookup_kind	kind = VN_WALKREWRITE )

References assign_value_ids(), false, NULL, and vn_driver().

Referenced by DISABLE_COPY_AND_ASSIGN(), and vn_driver().

vn_driver() [2/2]

vn_driver::vn_driver	(	function *	fn,
		edge	entry,
		bitmap	exit_bbs,
		bool	iterate,
		bool	eliminate,
		bool	skip_entry_phis,
		vn_lookup_kind	kind )

Value-number the region ENTRY leads into, which exits to EXIT_BBS, or all of
FN if ENTRY is NULL.   

References do_rpo_vn_1(), ENTRY_BLOCK_PTR_FOR_FN, last_basic_block_for_fn, m_avail, m_bb_to_rpo, m_eliminate, m_todo, rpo_elim::rpo_elim(), and single_succ().

~vn_driver()

vn_driver::~vn_driver

(

)

References free_rpo_vn(), m_avail, and m_bb_to_rpo.

Member Function Documentation

DISABLE_COPY_AND_ASSIGN()

vn_driver::DISABLE_COPY_AND_ASSIGN ( vn_driver )

private

References vn_driver().

finalize()

unsigned vn_driver::finalize

(

bitmap

inserted_exprs = NULL

)

Finish elimination and return the TODO flags.   

References eliminate_with_rpo_vn(), m_avail, m_bb_to_rpo, m_eliminate, m_todo, NULL, rpo_avail, rpo_vn_valueize(), todo(), vn_bb_to_rpo, and vn_valueize.

Referenced by do_rpo_vn().

todo()

unsigned vn_driver::todo ( ) const

inline

References m_todo.

Referenced by do_rpo_vn(), and finalize().

Field Documentation

m_avail

class rpo_elim* vn_driver::m_avail

private

Referenced by finalize(), vn_driver(), and ~vn_driver().

m_bb_to_rpo

int* vn_driver::m_bb_to_rpo

private

Referenced by finalize(), vn_driver(), and ~vn_driver().

m_eliminate

bool vn_driver::m_eliminate

private

Referenced by finalize(), and vn_driver().

m_todo

unsigned vn_driver::m_todo

private

Referenced by finalize(), todo(), and vn_driver().

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The documentation for this class was generated from the following files:

• tree-ssa-sccvn.h
• tree-ssa-sccvn.cc