clones/php-src
1
0
Fork 0
mirror of https://github.com/php/php-src.git synced 2024-09-24 03:17:26 +00:00
Code Issues Packages Projects Releases Wiki Activity
106,311 Commits 491 Branches 1,363 Tags 846 MiB
29bced9521
Commit Graph

55 Commits

Author SHA1 Message Date
Dmitry Stogov
56a5d0bd91 Fixed CFG construction for SWITCH opcodes 2019-04-03 03:09:03 +03:00
Nikita Popov
17f8b9fb36 Fixed bug #77215 
Remove invalid assertion: A block can have multiple switch frees,
so if we don't do live range block splitting, it is not necessarily
true that the free is located at the start of a block.
 2018-11-28 20:08:39 +01:00
Xinchen Hui
7a7ec01a49 year++ 2018-01-02 12:55:14 +08:00
Dmitry Stogov
1b9d0c8af3 Fixed wrong edges_count re-calculation. 2017-07-20 23:28:05 +03:00
Dmitry Stogov
1180d8c801 Separate ISSET_ISEMPTY_CV/UNSET_CV from ISSET_ISEMPTY_VAR/UNSET_VAR 2017-07-17 14:11:50 +03:00
Dmitry Stogov
d9d3b2c206 Fixed CFG/SSA construction (avoid multiple identical predecessors) 2017-07-17 13:35:47 +03:00
Dmitry Stogov
2a286ad599 Added goblal optimisation passes based on data flow analyses using SSA form: 
SCCP - Sparse Conditional Constant Propagation, DCE - Dead Code Elimination
and removing of unused local variablesi.

Squashed commit of the following:

commit bf5ac05fc0
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 14:26:40 2017 +0300

    Added news entry

commit 4cfa6984b1
Merge: 1cdaaac 1f261d7
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 13:30:50 2017 +0300

    Merge branch 'sccp' into dce

    * sccp:
      Bump OCI8 version for recent patch
      WS
      Fix test title
      Ensure that the stream position is kept between reads
      Turn off EXIF_DEBUG so Travis don't complain at me
      Don't add a new line to undefined tags in EXIF_DEBUG mode
      Fix compile error with EXIF_DEBUG
      update NEWS
      disable --with-pcre-valgrind on travis
      fix default args for --with-pcre-valgrind
      Enable valgrind support for PCRE by default in debug builds
      add oniguruma.patch to ease future upgrades
      SIZEOF_SIZE_T doesn't exist on AIX and POWER8 (ppc64le), keep using SIZEOF_LONG

commit 1f261d77cb
Merge: a32a3fb b280ba8
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 13:30:39 2017 +0300

    Merge branch 'master' into sccp

    * master:
      Bump OCI8 version for recent patch
      WS
      Fix test title
      Ensure that the stream position is kept between reads
      Turn off EXIF_DEBUG so Travis don't complain at me
      Don't add a new line to undefined tags in EXIF_DEBUG mode
      Fix compile error with EXIF_DEBUG
      update NEWS
      disable --with-pcre-valgrind on travis
      fix default args for --with-pcre-valgrind
      Enable valgrind support for PCRE by default in debug builds
      add oniguruma.patch to ease future upgrades
      SIZEOF_SIZE_T doesn't exist on AIX and POWER8 (ppc64le), keep using SIZEOF_LONG

commit 1cdaaac601
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 13:27:12 2017 +0300

    Use generic evalution mechanism for constant functions

commit 75bd92a609
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 12:39:05 2017 +0300

    Fixed use-def chain unlinking for "$a = 1; $a += $a;"

commit 7d7746814d
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 12:38:29 2017 +0300

    Enable duplicate predecessors verification

commit 6b1667f206
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 11:55:20 2017 +0300

    Removed duplicate definitions

commit 1415b53014
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 11:51:29 2017 +0300

    Enable evaluation of constant functions with 3 arguments

commit ab367deef9
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 11:45:13 2017 +0300

    Removed deprecated check

commit c51659ea8c
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 11:40:42 2017 +0300

    Reduce limit

commit b1be5a04d7
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 11:38:23 2017 +0300

    Disable constant array_flip() evaluation

commit 7a5b0596a1
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 11:33:20 2017 +0300

    Fixed comments

commit 377e48b342
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 11:28:50 2017 +0300

    Cast of string to long/double can not produce exception

commit 228dd01af3
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 11:24:50 2017 +0300

    Added missed return

commit 0972a21636
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 11:22:36 2017 +0300

    objects may be nested in array operands

commit bd346bfa5c
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 11:19:20 2017 +0300

    ~$resource is unsupported.

commit c77e45610c
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 11:15:39 2017 +0300

    ws

commit 0b64d71109
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 11:14:40 2017 +0300

    Call to zend_ssa_unlink_use_chain() shouldn't be dropped

commit cb7059fcf6
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 11:11:58 2017 +0300

    Safer check for function name. The previous check is incorrect in ZTS build.

commit 7280aba1e1
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 11:02:10 2017 +0300

    Missing warning

commit 54bc7b576c
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 14 10:56:42 2017 +0300

    Proper check for successors count

commit ea8c004a15
Merge: 624f76d a32a3fb
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 13 15:56:26 2017 +0300

    Merge branch 'sccp' into dce

    * sccp:
      fix fold
      Fixed bug #74866 extension_dir = "./ext" now use current directory for base
      add next vc15 toolset to the list
      Revert "Enable whole program optimization for builds without PGO, too"
      extend comment
      cleanup discontinued target

commit a32a3fb67c
Merge: 2722dbf 5fb2abd
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 13 15:56:14 2017 +0300

    Merge branch 'master' into sccp

    * master:
      fix fold
      Fixed bug #74866 extension_dir = "./ext" now use current directory for base
      add next vc15 toolset to the list
      Revert "Enable whole program optimization for builds without PGO, too"
      extend comment
      cleanup discontinued target

commit 624f76df48
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 13 12:30:27 2017 +0300

    Set RETURN_VALUE_UNUSED instead of additional FREE opcode, if possible.
    Keep alive dead instructions that have to free two temporary variables.

commit 94c9b26695
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 13 11:51:14 2017 +0300

    More accurate "vararg" handling in DCE

commit 665ed8491c
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 13 09:31:45 2017 +0300

    Improved DCE performance, by avoiding redundand checks and repeatable iterations.

commit 3f42ce18ba
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 12 23:03:11 2017 +0300

    Added few more instructions without side effects and exceptions

commit b17178f991
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 12 20:39:02 2017 +0300

    Temprary enable SSA validation in DEBUG build

commit e238a8dc79
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 12 20:37:53 2017 +0300

    Inegrate SSA validation developed by Nikita

commit a247cee80b
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 12 20:31:27 2017 +0300

    Perform DCE pass before other DFA optimisations, to properly reconstruct "no value" use-def chains.

commit a651564f29
Merge: 06f6eb0 2722dbf
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 12 18:55:05 2017 +0300

    Merge branch 'sccp' into dce

    * sccp:
      Resources should be closed during object destructioin, not during freeing.
      Guard against AppVeyor losing deps issue
      increase poll timeout as false positives mitigation
      Value of EG(user_exception_handler) should't relive request boundary
      sodium ext: remove function names before exception messages
      sodium ext: update the crypto_kx_*() API to the libsodium one
      Revert "fix macro redifinitions"

commit 2722dbfdf5
Merge: 6595ea3 09d3b73
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 12 18:54:48 2017 +0300

    Merge branch 'master' into sccp

    * master:
      Resources should be closed during object destructioin, not during freeing.
      Guard against AppVeyor losing deps issue
      increase poll timeout as false positives mitigation
      Value of EG(user_exception_handler) should't relive request boundary
      sodium ext: remove function names before exception messages
      sodium ext: update the crypto_kx_*() API to the libsodium one
      Revert "fix macro redifinitions"

commit 06f6eb0e68
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 12 14:52:28 2017 +0300

    Use zend_ssa_is_no_val_use() instead of zend_has_improper_op1_use()

commit 4b64dbb30d
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 12 13:07:14 2017 +0300

    Check if instruction may throw exception only for instructions without known side effects.
    Always disable removing ASSIGN and UNSET_VAR that may throw.

commit c5aa1f47cd
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 12 11:21:07 2017 +0300

    Use existing bit

commit c2af153bae
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 12 11:10:48 2017 +0300

    Updated Windows build

commit de5e8fc129
Merge: 8c0de53 6595ea3
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 12 11:10:12 2017 +0300

    Merge branch 'sccp' into dce

    * sccp: (29 commits)
      Use existing bit
      Updated Windows build
      Fixed compilation error
      Remove debug code
      We need to check for the length here too, or we crash and no one likes that! :(
      * Implemented #65187 (exif_read_data/thumbnail: add support for stream resource) * ext/exif now uses FAST_ZPP
      Remove extraneous configure flag
      Revert "remove excessive checks and fix warnings"
      parametrize zip names
      Upgrade bundled PCRE to 8.41
      Updated NEWS file with LDAP changes
      Fixed removing all controls by passing an empty array to ldap_set_option
      Filled in NEWS file with ext/ldap last modifications
      change order, allow to build as shared extension
      restore file deleted by mistake in a merge commit
      Fix segfault in php_stream_context_get_option call
      remove excessive checks and fix warnings
      fix macro redifinitions
      fix symbol availability and ws
      Remove this for now, as not found
      ...

commit 6595ea3420
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 12 10:27:02 2017 +0300

    Use existing bit

commit f0bfd36cb8
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 12 10:21:22 2017 +0300

    Updated Windows build

commit a9bd7c89f2
Merge: d1eb5ed 2b7d3fb
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 12 09:51:32 2017 +0300

    Merge branch 'master' into sccp

    * master: (27 commits)
      Fixed compilation error
      Remove debug code
      We need to check for the length here too, or we crash and no one likes that! :(
      * Implemented #65187 (exif_read_data/thumbnail: add support for stream resource) * ext/exif now uses FAST_ZPP
      Remove extraneous configure flag
      Revert "remove excessive checks and fix warnings"
      parametrize zip names
      Upgrade bundled PCRE to 8.41
      Updated NEWS file with LDAP changes
      Fixed removing all controls by passing an empty array to ldap_set_option
      Filled in NEWS file with ext/ldap last modifications
      change order, allow to build as shared extension
      restore file deleted by mistake in a merge commit
      Fix segfault in php_stream_context_get_option call
      remove excessive checks and fix warnings
      fix macro redifinitions
      fix symbol availability and ws
      Remove this for now, as not found
      fix authors
      NEWS for Sodium
      ...

commit 8c0de53e5f
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 11 21:54:36 2017 +0300

    Initial integration of Dead Code Elimination (DCE) and unused variable removing passes, originally developed in https://github.com/nikic/php-src/tree/opt, into DFA optimization pass.

commit d1eb5ede3a
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 11 12:19:11 2017 +0300

    Proper SSA reconstruction for "$a = $a;"

commit 4872d139b5
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 11 11:57:33 2017 +0300

    Replace conditions, that should be always true, by ZEND_ASSERT()

commit 9915b1f5cd
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 11 11:56:51 2017 +0300

    Fixed pass name

commit d26ff1b88d
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 11 11:55:47 2017 +0300

    Don't create identical predecessors

commit 0625fbe32b
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 11 09:36:07 2017 +0300

    Update unreachable blocks.

commit 9d7d409e6a
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 11 09:28:49 2017 +0300

    Keep consistent cfg.map[]

commit 85a86e58b2
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 11 02:36:14 2017 +0300

    Remove unusded phi

commit d5e0f2df4c
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 11 02:35:00 2017 +0300

    Don't clear phi->spources[] too early.

commit a90ed34295
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 10 21:29:39 2017 +0300

    Make SCCP to remove dead live ranges.

commit 320237f3d8
Merge: 63bbed5 7be2637
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 10 17:35:21 2017 +0300

    Merge branch 'master' into sccp

    * master:
      Fixed memory leak introduced by 7cb5bdf64a
      eliminate casts
      remove checks for eol dependencies
      improve test
      Small fix in ext/ldap, Moved vars definitions to the beginning of the block using them
      ZipArchive implements countable, added ZipArchive::count() method

commit 63bbed5e71
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 10 17:01:15 2017 +0300

    Evaluation of few more constant functions

commit 07f45d8a3d
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 10 16:22:47 2017 +0300

    Properly unlinking dead blocks from predecessors/successors and dominators

commit 502002aa6e
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 10 13:33:14 2017 +0300

    Replacel constant JMPZ/NZ/ZNZ by JMP or NOP

commit 3253e61b66
Merge: e7f69f0 161c378
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 10 12:22:39 2017 +0300

    Merge branch 'master' into sccp

    * master:
      Revert "Fixed bug #74878"
      Upgrading note for #74837
      Fixed bug #74837 - NEWS
      Implement Countable for DomNodeList and DOMNamedNodeMap (Request #74837)
      Fix #49649 - Handle property visibility changes on unserialization

commit e7f69f07fc
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 10 12:15:08 2017 +0300

    Prevent compile-time evaluation of implode() with arguments causing run-time warnings

commit 0e882f189a
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 10 11:54:04 2017 +0300

    Constant evaluation of ini_get() for some safe cases

commit 9e36a748b2
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 10 11:13:37 2017 +0300

    Constant evaluation of implode()

commit e73046e266
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 10 10:51:23 2017 +0300

    Fixed uninitialized value

commit f5e2e8e68c
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 10 10:05:37 2017 +0300

    Remove (compact) unused constants after SCCP pass

commit f0b7bb86eb
Merge: e69d4f6 cfacf84
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 10 09:10:00 2017 +0300

    Merge branch 'master' into sccp

    * master: (37 commits)
      #73594 tests only check the extra params if dns_get_record is successful
      Fixed bug #74852 (property_exists returns true on unknown DateInterval property)
      fix uninitialized var
      fix comparison warning
      comply with POSIX signature
      fix warning
      remove some casts
      cleanup casts
      remove useless cast
      eliminate casts
      sync vim mode lines in main
      [ci skip] update NEWS
      [ci skip] update NEWS
      [ci skip] update NEWS
      Fixed bug #74883 SQLite3::__construct() produces "out of memory" exception with invalid flags
      Silent compiler warning
      Fix test
      Deprecated the read_exif_data() alias
      Add myself as exif maintainer
      update libs versions
      ...

commit e69d4f6140
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 7 12:51:41 2017 +0300

    Avoid in-place modification of referenced data

commit 58f7c17978
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 7 12:33:24 2017 +0300

    Use arena for temporary data.

commit 93d3e7ddc2
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 7 11:54:47 2017 +0300

    Made sccp_ctx to be an "extension" of scdf_ctx and remove duplicate data.

commit f810c6f7c4
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 7 11:20:48 2017 +0300

    Improved SSCP integration

commit d17ed887f3
Merge: d90805a 29653da
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 7 10:22:37 2017 +0300

    Merge branch 'master' into sccp

    * master:
      Fixed bug #74873 (Minor BC break: PCRE_JIT changes output of preg_match()).
      Fixed bug #72324 (imap_mailboxmsginfo() return wrong size)
      Fix redefine warnings
      Expand sb's name and capitalize my own
      Write the URL on a new line, so that it is easier copyable

commit d90805a40b
Merge: 2e5e03b fc336c7
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 6 23:07:04 2017 +0300

    Merge branch 'master' into sccp

    * master:
      Added missed dump of "main" script code
      replace the stack var by a macro
      [ci skip] sync NEWS
      minor fix for web announce
      add missing NEWS entry for #74087 and also fix the formatting
      move NEWS entry to the correct place, also bump the version

commit 2e5e03b673
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 6 23:03:41 2017 +0300

    Call info should be removed, but at least we should prevent incorrect stack adjustment.

commit 1ee9110b35
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 6 19:34:43 2017 +0300

    Remove NOP instructions, introduced bvy SCCP.
    This commit discloses unrelated issue caused ext/soap/tests/bug70211.phpt failure.

commit 9a2f50070d
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 6 16:34:02 2017 +0300

    Avoid useless iterations for first SSA variablesi, always marked BOT.

commit c57dd7c6ef
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 6 16:33:46 2017 +0300

    Use reference-counting

commit 90f822d68e
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 6 14:00:22 2017 +0300

    Support for few more opcodes

commit cffee2f7e5
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 6 12:35:13 2017 +0300

    Combined constants substitutaion and dead instruction removing in single pass. This eleminates substitution in dead instructions.

commit f890375c16
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 6 10:34:48 2017 +0300

    Use reference-counting instead of duplication

commit db0cd64dfa
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 6 03:04:27 2017 +0300

    Improved SCDF<->SCCP interface

     - "get_feasible_successors" callback is changed into "mark_feasible_successors" and should mark necessary edges through scdf_mark_edge_feasible()
     - SCDF takes care about OP_DATA instruction
     - SCDF code is re-arranged to avoid repeatable checks

commit e0ad5dd489
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 6 00:55:40 2017 +0300

    Changed representation of "feasible_edges", using one bit per edge.

commit afee3138fe
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 6 00:49:56 2017 +0300

    Revert "Don't propagate unused values"

    This reverts commit 84e5bfd430.

commit 84e5bfd430
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 5 23:39:42 2017 +0300

    Don't propagate unused values

commit d4f15b9506
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 5 23:39:10 2017 +0300

    Don't visit the same Phi twice

commit 2558311b4d
Merge: 722a59d 7bb4ae5
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 5 21:51:06 2017 +0300

    Merge branch 'master' into sccp

    * master:
      Fixed final dump "after optimizer"

commit 722a59ddb1
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 5 21:09:29 2017 +0300

    SCCP doesn't support VERIFY_RETURN_TYPE (ext/opcache/tests/bug73789.phpt failure)

commit 7084fade4d
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 5 20:37:21 2017 +0300

    Fixed SSA reconstruction

commit 37ec4e0845
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 5 19:34:46 2017 +0300

    Disable constant propagation for variables that can be modified indirectly

commit 4bb9b6526e
Merge: 6800460 73d5097
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 5 19:17:04 2017 +0300

    Merge branch 'master' into sccp

    * master: (43 commits)
      Keep information about SSA variables, that may be modified indirectly.
      Added constants for known ldap controls OID and tests for ldap_get/set_option for controls
      Added support for controls to ldap_get_option
      [ci skip] sync NEWS
      NEWS for oniguruma
      Patch from the upstream git https://github.com/kkos/oniguruma/issues/60 (CVE-2017-9228)
      Patch from the upstream git https://github.com/kkos/oniguruma/issues/59 (CVE-2017-9229) b690371bbf97794b4a1d3f295d4fb9a8b05d402d Modified for onig 5.9.6
      Patch from the upstream git https://github.com/kkos/oniguruma/issues/58 (CVE-2017-9227)
      Patch from the upstream git https://github.com/kkos/oniguruma/issues/57 (CVE-2017-9224)
      Patch from the upstream git https://github.com/kkos/oniguruma/issues/55 (CVE-2017-9226) b4bf968ad52afe14e60a2dc8a95d3555c543353a Modified for onig 5.9.6 f015fbdd95f76438cd86366467bb2b39870dd7c6 Modified for onig 5.9.6
      valid_symbol_table removed
      Improve fix for #74145
      Fix wddx
      Fix tests
      Fixed bug #74111
      Fix bug #74603 - use correct buffer size
      Fix bug #74651 - check EVP_SealInit as it can return -1
      Update NEWS
      Fix bug #74087
      Fixed parsing of strange formats with mixed month/day and time strings
      ...

commit 680046086c
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 5 16:14:38 2017 +0300

    Support for few more internal functions evaluation

commit 74a29468ef
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 5 13:42:55 2017 +0300

    Disabled evaluation of strpos() with empty needle.

commit e8908946e5
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 5 13:17:30 2017 +0300

    Replace calls to in_array() with constant array by IN_ARRAY instruction after SCCP.

commit 4e8fa2c3dd
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Wed Jul 5 00:58:12 2017 +0300

    Initial integration of Sparse Conditional Constant Propagation (SCCP), originally developed in https://github.com/nikic/php-src/tree/opt, into DFA optimization pass.
 2017-07-14 14:33:34 +03:00
Dmitry Stogov
acffb7a080 Keep information about SSA variables, that may be modified indirectly. 2017-07-05 19:15:16 +03:00
Nikita Popov
88c85cbd5c Merge branch 'PHP-7.1' 2017-04-17 12:19:46 +02:00
Nikita Popov
abf16c18c7 Fix loop identification 
When assigning loop headers, we should treat already detected
loops as collapsed to their loop header, instead of ignoring them.

This fixes the loop header of BB2 in mandel2 if live-range CFG
splitting is enabled.
 2017-04-17 12:17:32 +02:00
Nikita Popov
07fe8616e6 Set flags on the right block 2017-04-11 00:04:07 +02:00
Nikita Popov
a4c7c55c0b Move call/recv splitting into correct branch 2017-04-10 23:51:27 +02:00
Nikita Popov
ad8652818a Implement jumptable optimization 2017-04-10 22:23:14 +02:00
Nikita Popov
d1a012b602 Support more than two successors in opcache CFG 2017-04-10 22:18:24 +02:00
Xinchen Hui
36848f6e08 Merge branch 'PHP-7.1' 
* PHP-7.1:
  Update NEWS
  Remove unused var
  Fix invalid free of persistent results on error/connection loss in mysqlnd (bug 74376)
 2017-04-07 15:21:57 +08:00
Xinchen Hui
e656455eae Remove unused var 2017-04-07 15:21:19 +08:00
Thomas Punt
9f08aff3fd Remove superfluous allocation checks around ZMM-based functions 2017-04-02 00:58:19 +02:00
Sebastian Bergmann
ccc35d1903 Fugbix typo 2017-03-16 19:10:07 +01:00
Nikita Popov
f1f68b60f5 Optimize DJ spanning tree back-edge check 
Instead of walking the DJ spanning tree upwards, record entry and
exit times during the DFS and use these to determine whether CJ
edges are sp-back edges.
 2017-03-16 17:26:20 +01:00
Nikita Popov
6633e8492e Sort blocks in loop identification 
The previous implementation was doing O(blocks*levels) iterations,
which for a linear-ish domtree is O(blocks^2). Avoid this by sorting
the blocks by decreasing level upfront.
 2017-03-16 16:49:36 +01:00
Sammy Kaye Powers
dac6c639bb Update copyright headers to 2017 2017-01-04 11:23:42 -06:00
Xinchen Hui
8250b3fca1 Fixed possible false assertion failure 2016-12-08 22:04:43 +08:00
Dmitry Stogov
94fbcbe172 Allow optional splitting of basic blocks at RECV/RECV_INIT opcodes. 2016-08-29 20:35:17 +03:00
Dmitry Stogov
b5bab0fce8 Merge branch 'PHP-7.0' into PHP-7.1 
* PHP-7.0:
  Fixed bug #72944 (Null pointer deref in zval_delref_p).
 2016-08-29 12:07:54 +03:00
Dmitry Stogov
caf890b291 Fixed CFG construction for stackless execution (split basic blocks after calls) 2016-08-22 16:48:26 +03:00
Dmitry Stogov
1433162083 Fixed compilation warnings 2016-06-21 20:12:29 +03:00
Nikita Popov
70f0546885 Don't optimize special dynamic calls to non-dynamic 
As it drops the warning. This is more problematic with constant
propagation, as tests would fail.

Extract a zend_optimizer_classify_function() function, as its now
needed by zend_cfg and update_opN.
 2016-06-05 22:04:36 +02:00
Xinchen Hui
4935c03276 Revert "assert won't cause indrect var access if it's disabled" 
in the other hand, it should not be there if it's disabled...

This reverts commit 27f40676e6.
 2016-05-27 10:53:32 -07:00
Xinchen Hui
27f40676e6 assert won't cause indrect var access if it's disabled 2016-05-27 10:48:36 -07:00
Nikita Popov
a19eb8e34a Ensure no entry predecessors for SSA construction 2016-05-24 18:29:45 +02:00
Nikita Popov
e745b4cad8 Replace BB end with BB len 
And support empty blocks everywhere.
 2016-05-24 18:29:44 +02:00
Nikita Popov
0d62dfdf81 Improve previous fix 
Do not mark loop var free blocks as reachable after all -- as we
can't construct SSA for unreachable blocks, this would cause
issues down the line.

Instead add an extra UNREACHABLE_FREE flag and retain only the
FREE instruction during NOP removal. (If we retain all
instructions in the BB we might leave a jump instruction that goes
into the nowhere.)
 2016-05-22 00:05:06 +02:00
Nikita Popov
fa9566627b Fix reachability detection if live ranges aren't split 
Even if we don't split, we still want to keep the same logic for
reachibility detection.
 2016-05-21 20:17:09 +02:00
Nikita Popov
b65b15c6f4 Mark assert() as INDIRECT_VAR_ACCESS 
I don't like this... we may want to detect "obviously not string"
operands by checking for the result of a comparison instruction.
 2016-05-17 16:13:17 +02:00
Dmitry Stogov
ccf18da450 Eliminated checks for (func->op_array.fn_flags & ZEND_ACC_GENERATOR) in fast path of DO_FCALL* handlers. 
This slightly improves calls to regular function and method calls in cost of a bit slower generator initialization.
Separate call frame for generators, allocated on heap, now created by ZEND_GENERATOR_CREATE instruction.
 2016-05-13 01:40:15 +03:00
Nikita Popov
8e5b139732 Evaluate arguments of new for classes without ctor 
ML: http://markmail.org/message/4b3mk7jid64zvz34
 2016-03-25 19:11:37 +01:00
Kalle Sommer Nielsen
fc49f1c411 Fix build 2016-03-17 03:53:01 +01:00
Nikita Popov
8d758e7be9 Fix dominator tree construction 
The used dominator intersection algorithm assumes a postorder
numbering of the CFG. The reversal of our natural numbering is
quite similar to postorder, but not the same.

In the future we should precompute both preorder/postorder
numberings and orderings, as these are useful in many places.
 2016-02-27 15:10:18 +01:00
Nikita Popov
7174af4074 Support CFG construction without live range splitting 
We must not split at live range boundaries for SSA constructions,
otherwise an OP_DATA instruction may be separated into new block
and not picked up during renaming.

It's also unnecessary for this use case and only blows up the CFG.
 2016-02-09 13:02:33 +01:00
Nikita Popov
949aaea66e Don't insert duplicate predecessors 
Otherwise we'll get corrupt phis
 2016-01-24 23:03:57 +01:00
Dmitry Stogov
9b854ebab4 More accurate handling of isset() and unset() 2016-01-22 13:32:20 +03:00
Nikita Popov
dcf3db6ac8 Mark isset($$var) as INDIRECT_VAR_ACCESS 2016-01-19 22:26:32 +01:00
Dmitry Stogov
a8900b5636 Typo (ASSESS->ACCESS) 2016-01-19 15:54:44 +03:00
Dmitry Stogov
a2ff3a46a4 Use ZEND_FUNC_INDIRECT_VAR_ASSESS instead of ZEND_FUNC_TOO_DYNAMIC. Handle function with exceptions handlers and generators separately. 2016-01-19 15:33:08 +03:00
Lior Kaplan
71c1980025 Happy new year (Update copyright to 2016) 2016-01-01 20:06:12 +02:00
Nikita Popov
83c4417330 Mark uses of scope functions in namespaces as TOO_DYNAMIC 
Of course they are not necessarily, but it's very likely and we have
to be conservative anyway.

Also use zend_string_equals_literal().
 2015-12-30 23:38:03 +01:00
Nikita Popov
65e456f364 Introduce BIND_LEXICAL 
This opcodes inserts a local CV into the closure static variable
table. This replaces the previous mechanism of having static
variables marked as LEXICAL, which perform a symtable lookup
during copying.

This means a) functions which contain closures no longer have to
rebuild their symtable (better performance) and b) we can now track
used variables in SSA.
 2015-12-29 23:14:53 +01:00
Nikita Popov
88eae43ff9 Remove uses of VARs in extended_value 
The DECLARE_(ANON_)INHERITED_CLASS(_DELAYED) opcodes were
referencing the parent ce VAR through extended_value. This is
hacky and we can't track the def-use chain in SSA.

To avoid this, the layout of declaration opcodes is changed
as follows: op1 points to the lcname and rtd_key literals, in
that order. (For anon/lambda declarations only one of lcname or
rtd_key is present.) This frees up op2, which is now used to
reference the parent ce VAR in inheriting declarations. The
jmp offset for anon class declarations is moved frop op2 to
extended_value.

The changes were applied both to class and function declarations
to keep everything symmetric.
 2015-12-21 14:44:42 +01:00
Dmitry Stogov
9044f491cc Use do_alloca() instead of alloca() 2015-12-16 04:59:05 +03:00
Dmitry Stogov
c88ffa9a56 Added e-SSA based DFA optimisation framework (incomplete) 2015-12-16 00:49:44 +03:00