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From: "spop at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/54742] Switch elimination in FSM loop
Date: Sat, 06 Dec 2014 19:20:00 -0000	[thread overview]
Message-ID: <bug-54742-4-eBDqHjfX07@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-54742-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54742

--- Comment #39 from Sebastian Pop <spop at gcc dot gnu.org> ---
Author: spop
Date: Sat Dec  6 19:19:37 2014
New Revision: 218451

URL: https://gcc.gnu.org/viewcvs?rev=218451&root=gcc&view=rev
Log:
extend jump thread for finite state automata

    PR tree-optimization/54742
    * params.def (max-fsm-thread-path-insns, max-fsm-thread-length,
    max-fsm-thread-paths): New.

    * doc/invoke.texi (max-fsm-thread-path-insns, max-fsm-thread-length,
    max-fsm-thread-paths): Documented.

    * tree-cfg.c (split_edge_bb_loc): Export.
    * tree-cfg.h (split_edge_bb_loc): Declared extern.

    * tree-ssa-threadedge.c (simplify_control_stmt_condition): Restore the
    original value of cond when simplification fails.
    (fsm_find_thread_path): New.
    (fsm_find_control_statement_thread_paths): New.
    (thread_through_normal_block): Call find_control_statement_thread_paths.

    * tree-ssa-threadupdate.c (dump_jump_thread_path): Pretty print
    EDGE_FSM_THREAD.
    (verify_seme): New.
    (duplicate_seme_region): New.
    (thread_through_all_blocks): Generate code for EDGE_FSM_THREAD edges
    calling duplicate_seme_region.

    * tree-ssa-threadupdate.h (jump_thread_edge_type): Add EDGE_FSM_THREAD.

    * testsuite/gcc.dg/tree-ssa/ssa-dom-thread-6.c: New test.
    * testsuite/gcc.dg/tree-ssa/ssa-dom-thread-7.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-thread-6.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-thread-7.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/doc/invoke.texi
    trunk/gcc/params.def
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-cfg.c
    trunk/gcc/tree-cfg.h
    trunk/gcc/tree-ssa-threadedge.c
    trunk/gcc/tree-ssa-threadupdate.c
    trunk/gcc/tree-ssa-threadupdate.h


  parent reply	other threads:[~2014-12-06 19:20 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-29  3:16 [Bug tree-optimization/54742] New: " joey.ye at arm dot com
2012-09-29  3:21 ` [Bug tree-optimization/54742] " pinskia at gcc dot gnu.org
2012-10-01 10:19 ` rguenth at gcc dot gnu.org
2012-10-10  7:37 ` joey.ye at arm dot com
2013-02-19 10:27 ` rguenth at gcc dot gnu.org
2013-03-04  8:27 ` venkataramanan.kumar at amd dot com
2013-03-04  8:34 ` venkataramanan.kumar at amd dot com
2013-03-04 16:56 ` law at redhat dot com
2013-03-08  3:56 ` joey.ye at arm dot com
2013-05-02  0:11 ` sje at gcc dot gnu.org
2013-11-20  7:23 ` StaffLeavers at arm dot com
2013-11-20  7:23 ` law at redhat dot com
2013-11-20  7:24 ` StaffLeavers at arm dot com
2013-11-20  7:25 ` StaffLeavers at arm dot com
2013-11-20  7:26 ` StaffLeavers at arm dot com
2013-11-20  7:26 ` StaffLeavers at arm dot com
2013-11-20  7:26 ` StaffLeavers at arm dot com
2013-11-20  7:26 ` StaffLeavers at arm dot com
2013-11-20  7:27 ` StaffLeavers at arm dot com
2013-11-20  7:27 ` StaffLeavers at arm dot com
2013-11-20  7:28 ` StaffLeavers at arm dot com
2013-11-20  7:28 ` StaffLeavers at arm dot com
2013-11-20  7:28 ` StaffLeavers at arm dot com
2013-11-20  7:29 ` StaffLeavers at arm dot com
2013-11-20  7:31 ` StaffLeavers at arm dot com
2013-11-22 19:30 ` law at redhat dot com
2013-11-27 12:11 ` jgreenhalgh at gcc dot gnu.org
2013-11-27 12:15 ` jgreenhalgh at gcc dot gnu.org
2013-12-11 18:43 ` izamyatin at gmail dot com
2013-12-11 18:48 ` law at redhat dot com
2013-12-12 11:22 ` izamyatin at gmail dot com
2013-12-13 11:05 ` rguenth at gcc dot gnu.org
2013-12-25 13:48 ` izamyatin at gmail dot com
2014-02-17 10:07 ` joey.ye at arm dot com
2014-02-19 11:22 ` joey.ye at arm dot com
2014-06-28 15:45 ` spop at gcc dot gnu.org
2014-08-12 22:49 ` sje at gcc dot gnu.org
2014-12-06 19:20 ` spop at gcc dot gnu.org [this message]
2014-12-06 19:23 ` spop at gcc dot gnu.org
2015-01-14 10:23 ` yroux at gcc dot gnu.org
2023-12-15 18:21 ` pinskia at gcc dot gnu.org

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