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50 Commits

Author SHA1 Message Date
Xinchen Hui
7a7ec01a49 year++ 2018-01-02 12:55:14 +08:00
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
6276268b77 Separate constants propagation code shatred between "first" and "block" passes into helper functions. 2017-07-04 15:10:33 +03:00
Dmitry Stogov
10dbc0b2e7 Compile/optimisation-time constants can't be circular, but in general may be reference-countable. It's better to use zval_ptr_dtor_nogc() to release them. 2017-07-04 10:43:34 +03:00
Dmitry Stogov
b685991b44 Get rid of old compatibility macros 2017-07-04 09:50:57 +03:00
Nikita Popov
4cd5e6816b Drop dead zend_optimizer_lookup_cv() function 2017-04-17 12:20:25 +02:00
Nikita Popov
ad8652818a Implement jumptable optimization 2017-04-10 22:23:14 +02:00
Sammy Kaye Powers
9e29f841ce Update copyright headers to 2017 2017-01-02 09:30:12 -06:00
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
Nikita Popov
d94b9545d6 Support known static/method calls in call graph 
For this purpose extract the function lookup call into a helper
zend_optimizer_get_called_func().
 2016-04-27 17:10:45 +02:00
Nikita Popov
5faedf5b3e Remove EXT_TYPE_UNUSED in favor of IS_UNUSED 
This means we no longer allocate an unused VAR for the retval of
instructions that support unused results.

Nearly all instructions already used the result variable only if
it was used. The only exception to this was the return value
variable for internal function call results. I've adjusted the code
to use a stack zval for the unused return case now. As we have
retval specialization now, we know that it doesn't matter.
 2016-02-11 18:02:19 +01:00
Xinchen Hui
63fb2b7118 Improve the names 2016-01-25 16:00:10 +08:00
Lior Kaplan
3d5438bf7b Merge branch 'PHP-7.0' 
* PHP-7.0:
  Update header to PHP Version 7
  Happy new year (Update copyright to 2016)
  Happy new year (Update copyright to 2016)
 2016-01-01 20:04:31 +02:00
Lior Kaplan
ed35de784f Merge branch 'PHP-5.6' into PHP-7.0 
* PHP-5.6:
  Happy new year (Update copyright to 2016)
 2016-01-01 19:48:25 +02:00
Lior Kaplan
49493a2dcf Happy new year (Update copyright to 2016) 2016-01-01 19:21:47 +02:00
Dmitry Stogov
b3d0178915 Rearrange code to enable inner precedure inference 2015-12-24 19:05:27 +03:00
Dmitry Stogov
f243aaf985 Added e-SSA based DFA optimisation framework (incomplete) 2015-12-11 17:24:55 +03:00
Dmitry Stogov
d2597ad20b Improved optimizer dubugging facility 2015-12-09 14:52:00 +03:00
Dmitry Stogov
b3393baa5d Refactored CFG based optimization using new CFG representation. 
Squashed commit of the following:

commit 907533390678f58eac738040ef62a40788048bef
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Nov 20 21:25:28 2015 +0300

    cleanup

commit 82f7e6f5bb434f12e9fdf45f597be351527f383c
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Nov 20 21:22:01 2015 +0300

    Update build system

commit 8fd83d843fde3f486692de4e2c6b7d64d4192704
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Nov 20 20:50:32 2015 +0300

    Reachable blocks can't be empty

commit 5822a36269833930a35cb3547222357118b11310
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Nov 20 19:11:02 2015 +0300

    added missing constraints

commit 2d0c00b243479924de0260ae8d80d624c36994a3
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Nov 20 19:03:12 2015 +0300

    optimization

commit 29d1e5eb210c51b052cac4d6c232aaa2c724dbbb
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Nov 20 18:34:11 2015 +0300

    Added missing optimization patterns

commit 38dd3b3f2459f5193c742633213f41d78326ea28
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Nov 20 17:47:06 2015 +0300

    zend_optimize_block() refactoring

commit 3dc97bd1f6d433dff0617338382347b6d0c08f84
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Nov 20 14:30:32 2015 +0300

    We don't use CFG back-references anymore

commit 2242c9e0aa741d287146ad43179650796f199f2d
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Nov 20 14:16:03 2015 +0300

    Consistent naming

commit 64f2856716069390ed7703ac88905cebf5e04023
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Nov 20 13:29:32 2015 +0300

    Optimization and separate building of direct CFG from predecessrs calculation

commit 9389be4869b13ec45df5dbd443015d2ac539a347
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Nov 20 10:44:19 2015 +0300

    Use CFG without back references (incomplete, but works)

commit 3d3ecd4b883959cf7b86c33622183295f913924e
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Nov 20 00:50:09 2015 +0300

    Fixed iteration in reverse order

commit 52f7fde0c3dfa4b4591519828ebdb238c2377936
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Nov 19 18:35:09 2015 +0300

    Separate debugging code into zend_dump.c

commit 4193a039ea96bae41baf97c6e458f419e8dbf9c5
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Nov 19 17:22:04 2015 +0300

    Remove unused code

commit 4228fdc57d8d120e1dad4e4d44045fa1a6f06fe0
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Nov 19 17:21:20 2015 +0300

    Remove dead live-ranges only on assembling basic blocks

commit 9a4a7966edf19b92678876f85565700694205598
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Nov 19 15:26:29 2015 +0300

    New CFG representation (incomplete)
 2015-11-20 22:06:36 +03:00
Dmitry Stogov
854e8ebb4f Move JMPZNZ L,L; L: JMPZ L+1; L: JMPNZ L+1 optimization patterns from zend_jmp_optimization() into zend_optimize_block() because the value of Tsource in zend_jmp_optimization() is inconsistent. 
Fixed compilation warnings.
 2015-11-17 21:07:01 +03:00
Dmitry Stogov
7de190898d cleanup 2015-11-17 11:24:16 +03:00
Dmitry Stogov
843c165735 Don't undo/redo "pass two" for jump targets in opcache optimizer. 2015-11-17 07:15:35 +03:00
Dmitry Stogov
09aa68b294 Break dependency between opcache and optimizer. Remove copatibility macros. 2015-11-12 02:02:24 +03:00
Dmitry Stogov
baf97b1fcc We don't nees zend_op_array->brk_cont_array at run-time anymore. 
Move zend_op_array->brk_cont_array into CG(context).brk_cont_array.
Use more compact zend_op_array->live_range instead of zend_op_array->brk_cont_array.
Semantic is kept unchanged.
 2015-11-10 21:48:03 +03:00
Nikita Popov
99d818f1e9 Don't propagate into ops that error on non-string 
To properly support this make update_opN_const fallible -- they
are not always called through replace_with_const.
 2015-11-07 12:04:51 +01:00
Dmitry Stogov
6d681876ee Get rid of memcpy() in MAKE_NOP() 2015-08-06 15:40:40 +03:00
Dmitry Stogov
549e8c4959 Squashed commit of the following: 
commit 03cf871f1576f08b2348c141b209894a7bf17a86
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 10 02:45:31 2015 +0300

    Revert "Fixed bug #62210 (Exceptions can leak temporary variables. As a part of the fix serious refactoring was done. op_array->brk_cont_array was removed, and replaced with more general and speed efficient op_array->T_liveliness. ZEND_GOTO opcode is always replaced by ZEND_JMP at compile time). (Bob, Dmitry, Laruence)"

    This reverts commit 5ee8413259.

commit 285a68227ce3d380e821a24fa389aa5239bd3fe1
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 10 02:45:26 2015 +0300

    Revert "Tuned off dubugging of live ranges"

    This reverts commit 404dc93d35.

commit 93d9d11157301ee2ec99afb6f5744b126d17f637
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 10 02:45:17 2015 +0300

    Revert "Remove loop_var_stack"

    This reverts commit b3a4c05071.

commit ede68ebbc284aec79e3f719f2c8dbf9da6907752
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 10 02:45:12 2015 +0300

    Revert "ZEND_SEPARATE reuses temporaries"

    This reverts commit 1852f538b9.

commit 96d8995dc1f517fb01b481736273767509f76c47
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 10 02:45:10 2015 +0300

    Revert "Add assertion in liveliness computation"

    This reverts commit ed14019e8c.

commit 0649d7bfef152e6cc8e67b922534e9946c634d9c
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 10 02:45:07 2015 +0300

    Revert "Fixed invalid live-range detection"

    This reverts commit 54f367ee2a.

commit dfe8f3851f6b04595eb089323e3492115a59363e
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 10 02:45:04 2015 +0300

    Revert "Add test guaranteeing that loop vars are only freed after potential return type exceptions"

    This reverts commit f5db5a558d.

commit 52a94aad6f48a199358cc07f7e4f56bb73050504
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 10 02:45:01 2015 +0300

    Revert "Fixed exception habdling on "return" statement."

    This reverts commit 17c5315bdf.

commit 6e90ad7331901711e89c2ceb2bcab5023e5cee60
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 10 02:44:58 2015 +0300

    Revert "Fix too early terminated temporary range with break/cont/goto"

    This reverts commit cc876c04b4.

commit 7b766e44b1970e4031f75109c302c07ead2c05cb
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 10 02:44:55 2015 +0300

    Revert "Fixed exception catching on break/continue"

    This reverts commit 8c3f701eeb.
 2015-07-10 03:31:52 +03:00
Dmitry Stogov
5ee8413259 Fixed bug #62210 (Exceptions can leak temporary variables. As a part of the fix serious refactoring was done. op_array->brk_cont_array was removed, and replaced with more general and speed efficient op_array->T_liveliness. ZEND_GOTO opcode is always replaced by ZEND_JMP at compile time). (Bob, Dmitry, Laruence) 
Squashed commit of the following:

commit 38e22106d4
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 7 15:12:19 2015 +0300

    Added NEWS entry

commit 0a355935bf
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 7 15:06:32 2015 +0300

    Inline function, to eliminate repeatable checks

commit d937584f3a
Merge: 0341626 32677f5
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 7 14:35:49 2015 +0300

    Merge branch 'master' into temporary_cleaning

    * master:
      Fixed bug #70006 (cli - function with default arg = STDOUT crash output).
      Fix x86 build
      Fixed use after free on closure_call_leak_with_exception.phpt
      Fixed test

commit 0341626ea9
Merge: 74869fa dec35de
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 7 12:00:53 2015 +0300

    Merge branch 'temporary_cleaning' of https://github.com/laruence/php-src into temporary_cleaning

    * 'temporary_cleaning' of https://github.com/laruence/php-src:
      Fixed checkpoint get
      Fixed crash of invalid pointer derefer
      cleanup

commit 74869fa673
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 7 11:45:34 2015 +0300

    Fixed wrong GOTO resolution

commit dec35ded32
Author: Xinchen Hui <laruence@gmail.com>
Date:   Tue Jul 7 15:58:49 2015 +0800

    Fixed checkpoint get

commit b0f419540a
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 7 10:47:11 2015 +0300

    Fixed crash of invalid pointer derefer (laruence)

commit 7a428d98ca
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 7 10:35:47 2015 +0300

    Fixed identation

commit 9c3a4dce9c
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 7 10:33:52 2015 +0300

    Fixed invalid size

commit 653abc670b
Author: Xinchen Hui <laruence@gmail.com>
Date:   Tue Jul 7 11:29:14 2015 +0800

    Fixed crash of invalid pointer derefer

commit e04500ceda
Author: Xinchen Hui <laruence@gmail.com>
Date:   Tue Jul 7 11:28:26 2015 +0800

    cleanup

commit 34183e1687
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 7 04:49:46 2015 +0300

    op_array->T_liveliness compression

commit 2f6ad84579
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 7 04:44:44 2015 +0300

    White spaces

commit be83f115a3
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 7 04:42:26 2015 +0300

    Identation

commit 1f5084b990
Merge: 91b620d 1adf3df
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 7 04:41:54 2015 +0300

    Merge branch 'master' into temporary_cleaning

    * master:
      Throw TypeError for invalid callback
      Fix crash when exception occurs during nested rope
      Fix crash when exception is thrown during ROPE_END
      Small cleanup in ternary compilation
      move the define to the right place
      fix ext/ldap build
      Rectify information about invalid shift warning being now ArithmeticError

commit 91b620d684
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 7 04:32:04 2015 +0300

    Replace GOTO by FREE/FE_FREE and JMP at compile time

commit 7052e56979
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Tue Jul 7 02:25:08 2015 +0300

    Use zend_regenerate_var_liveliness_info() to regenerate information after pass two.

commit ae72b0dc67
Merge: a81c4bb a919fe8
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 6 21:02:34 2015 +0300

    Merge branch 'master' into temporary_cleaning

    * master:
      Do not display EXT_TYPE_UNUSED in phpdbg opcodes
      Run debug build with opcache on travis

commit a81c4bb8c6
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 6 20:59:34 2015 +0300

    Improved algorithm. It's actually the same algorithm with second loop removed and simpler temporary data structures. The only difference may be in "re-defined" vatriable handling. Now live-range in that case started from the seconnd definition (this must be more safe).

commit 9a16810f7a
Merge: bbfbe47 001ecd3
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 6 17:57:45 2015 +0300

    Merge branch 'master' into temporary_cleaning

    * master:
      Simplify TMP var number decoding (without HashTable)

commit bbfbe470c8
Merge: 0bda4ab 436b01e
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 6 17:02:01 2015 +0300

    Merge branch 'master' into temporary_cleaning

    * master:
      Avoid dangerous optimization
      Fixed JMPZNZ instruction printing
      Attempt at falling back on ldap_find_control for Mac OS

commit 0bda4abea7
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 6 16:05:33 2015 +0300

    Fixed live-range construction for OP_DATA opcode
    Added comments about algorithm assumtions

commit 521ad9df98
Merge: 4398dab a09dcb0
Author: Bob Weinand <bobwei9@hotmail.com>
Date:   Mon Jul 6 14:54:15 2015 +0200

    Merge branch 'master' of https://github.com/php/php-src into temporary_cleaning

commit 4398dab82f
Author: Bob Weinand <bobwei9@hotmail.com>
Date:   Mon Jul 6 13:51:27 2015 +0200

    Add a few phpt tests related to temporary cleaning

commit 739656f83f
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 6 14:28:49 2015 +0300

    Fixed Zend/tests/foreach_004.phpt failure (FE_FETCH shouldn't be included into TMP vatriablr live range)

commit 3df462a2bc
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 6 13:41:02 2015 +0300

    Improve data layout (reduce the op_array structure size on 64-bit systems)

commit 883b73c56e
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Mon Jul 6 13:28:45 2015 +0300

    Removed op_array->brk_cont_array

commit ae5e58b598
Author: Bob Weinand <bobwei9@hotmail.com>
Date:   Mon Jul 6 04:22:58 2015 +0200

    Fix bug with brk_cont variable free / free loop vars via temporary liveliness info

commit b4223ca627
Author: Bob Weinand <bobwei9@hotmail.com>
Date:   Mon Jul 6 04:07:07 2015 +0200

    Fix bugs / cleanup fixes

commit ea33189d22
Author: Xinchen Hui <laruence@gmail.com>
Date:   Sun Jul 5 20:58:38 2015 +0800

    Removed useless TsTop

commit 1dbb007e4a
Merge: 550bbf8 3a8af24
Author: Xinchen Hui <laruence@gmail.com>
Date:   Sat Jul 4 15:06:44 2015 +0800

    Merge branch 'temporary_cleaning' of https://github.com/dstogov/php-src into temporary_cleaning

commit 3a8af24529
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 3 16:15:36 2015 +0300

    More exceptions from regular liveliness analyses (with explanation in comments).
    Mark old "unexplained" exceptions with ???.

commit ba721efa2c
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 3 14:16:09 2015 +0300

    Print list of live temp variables (at least for internal debugging)

commit 8d1f88fe91
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 3 13:31:56 2015 +0300

    Use op_array->T_liveliness to free incomplete ropes and restore error_reporting level on exception

commit 80c1d0d779
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Fri Jul 3 11:05:39 2015 +0300

    Don't keep empty T_liveliness

commit 501ae8aaac
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 2 22:31:48 2015 +0300

    Reverted changes to Zend/zend_arena.h.
    Reuse CG(arena) instead of creating a new one.

commit a4fce36907
Merge: 6ff7246 fd0fcce
Author: Dmitry Stogov <dmitry@zend.com>
Date:   Thu Jul 2 22:01:42 2015 +0300

    Merge branch 'temporary_cleaning' of github.com:bwoebi/php-src into temporary_cleaning

    * 'temporary_cleaning' of github.com:bwoebi/php-src:
      Fix remaining issues with compacted temporaries
      Fix regression from last commit (+1 ?!)
      Fix off-by-one (opcache may remove last ZEND_RETURN)
      Speed algorithm up, more fail safety when reusing temporaries
      Dumb bug in opcode.c (forgot to update Ts[i])
      Fix opcache support
      Exempt ROPE temporaries from freeing
      Hmm, we need temporary info for all the opcodes
      Add opcache support for cleaning in optimization step (Opcache seems to have a few unrelated issues which blow up together with that patch)
      Add proper temporary cleaning upon frame abortion
      Fix arena on small sizes (size < sizeof(zend_arena))

commit fd0fcce811
Author: Bob Weinand <bobwei9@hotmail.com>
Date:   Thu Jul 2 20:00:33 2015 +0200

    Fix remaining issues with compacted temporaries

commit 427dc58bbb
Author: Bob Weinand <bobwei9@hotmail.com>
Date:   Wed Jul 1 22:49:12 2015 +0200

    Fix regression from last commit (+1 ?!)

commit 1adcf56a6e
Author: Bob Weinand <bobwei9@hotmail.com>
Date:   Wed Jul 1 22:17:07 2015 +0200

    Fix off-by-one (opcache may remove last ZEND_RETURN)

commit 25b231b784
Author: Bob Weinand <bobwei9@hotmail.com>
Date:   Wed Jul 1 20:59:24 2015 +0200

    Speed algorithm up, more fail safety when reusing temporaries

commit 22d9d05350
Author: Bob Weinand <bobwei9@hotmail.com>
Date:   Wed Jul 1 16:48:46 2015 +0200

    Dumb bug in opcode.c (forgot to update Ts[i])

commit 6538269bfa
Author: Bob Weinand <bobwei9@hotmail.com>
Date:   Wed Jul 1 13:05:52 2015 +0200

    Fix opcache support

commit 333a7c4a88
Author: Bob Weinand <bobwei9@hotmail.com>
Date:   Sat Jun 27 22:40:21 2015 +0200

    Exempt ROPE temporaries from freeing

commit 02585f7708
Author: Bob Weinand <bobwei9@hotmail.com>
Date:   Fri Jun 26 16:20:55 2015 +0200

    Hmm, we need temporary info for all the opcodes

commit cbcaedbd78
Author: Bob Weinand <bobwei9@hotmail.com>
Date:   Fri Jun 26 01:04:09 2015 +0200

    Add opcache support for cleaning in optimization step
    (Opcache seems to have a few unrelated issues which blow up together with that patch)

commit fef649f406
Author: Bob Weinand <bobwei9@hotmail.com>
Date:   Fri Jun 26 01:02:27 2015 +0200

    Add proper temporary cleaning upon frame abortion

commit 1cec2e7271
Author: Bob Weinand <bobwei9@hotmail.com>
Date:   Thu Jun 25 23:33:21 2015 +0200

    Fix arena on small sizes (size < sizeof(zend_arena))
 2015-07-07 15:41:12 +03:00
Xinchen Hui
84d9426730 Fixed bug #69315 2015-03-27 17:50:36 +08:00
Dmitry Stogov
6289f7e52f Executor cleanup: fix GOTO and SWITCH VMs, remove aility to build additional PHP-5.0 compatible VM, hide executor implementation details. 2015-03-12 20:39:04 +03:00
Xinchen Hui
a1d9ceac7a Fixed annoying warnings 2015-01-29 11:59:37 +08:00
Xinchen Hui
fc33f52d8c bump year 2015-01-15 23:27:30 +08:00
Xinchen Hui
0579e8278d bump year 2015-01-15 23:26:37 +08:00
Anatol Belski
bdeb220f48 first shot remove TSRMLS_* things 2014-12-13 23:06:14 +01:00
Dmitry Stogov
dcfe58773e Rename EX_VAR_2() into ZEND_CALL_VAR() and EX_VAR_NUM_2() into ZEND_CALL_VAR_NUM(). 2014-11-28 11:11:33 +03:00
Dmitry Stogov
58a41cf795 Make QM_ASSIGN, JMP_SET and CAST return IS_TMP_VAR. 2014-09-24 01:57:40 +04:00
Dmitry Stogov
234af84c04 Refactored optimizer (compile different opimizer passes separately, instead of including *.c file) 2014-08-28 17:23:12 +04:00
Anatol Belski
6f9f0bf205 master renames phase 2 2014-08-25 19:28:33 +02:00
Xinchen Hui
e2522b4f1d Remove old version PHP supports 2014-08-15 16:40:07 +08:00
Dmitry Stogov
b7715c7e8a Refactored parameter passing mechanism. 
In PHP-5.6 and below each argument passed to user function was copies on VM stack twice.
Now we always have ZEND_INIT_FCALL (or simular) opcode that pushes "call frame" on top of VM stack.
"Call frame" is actually the same zend_execute_data structure.
All the following ZEND_SEND instructions push arguments on top of the stack in a way that they directly comes into corresponding CV variables of the called frame. Extra arguments are copied at the end of stack frame (after all CV and TMP variables) on function enterance.

There are two minor incompatibilities:
1) It's not allowed to decalre functions redefining arguments e.g. "function foo($a,$a) {}".
2) func_get_arg() and func_get args() return the current value of argument and not the original value that was sent.
 2014-06-30 15:43:45 +04:00
Dmitry Stogov
a4f38192ec Use arena allocator for optimizer temporary data structures 2014-06-18 17:09:37 +04:00
Dmitry Stogov
f9b26bc39a Cleanup (2-nd round) 2014-04-15 21:56:30 +04:00
Dmitry Stogov
5324f22f59 ext/opcache refactoring (incomplete) 2014-03-28 23:34:49 +04:00
Xinchen Hui
c081ce628f Bump year 2014-01-03 11:08:10 +08:00
Xinchen Hui
a88543a106 Fixed bug #66298 (ext/opcache/Optimizer/zend_optimizer.c has dos-style ^M as lineend) 2013-12-30 10:51:47 +08:00
Dmitry Stogov
94816ed9bf Fixed compatibility with php-5.2 2013-08-29 10:44:07 +04:00
Dmitry Stogov
790db9ff9b Fixed bug #65561 (Zend Opcache on Solaris 11 x86 needs ZEND_MM_ALIGNMENT=4). (Terry Ellison) 2013-08-29 10:29:48 +04:00
Dmitry Stogov
a5b4eeb5f0 Fixed compilation warnings (issue #92) 2013-04-29 10:32:08 +04:00
Dmitry Stogov
a62ffb72f4 Renamed Zend Optimizer+ into Zend OPcache 2013-03-19 10:32:24 +04:00
Dmitry Stogov
34d3202eda Merge Zend Optimizer+ 
git-subtree-dir: ext/opcache
git-subtree-mainline: b1dbfb7357
git-subtree-split: 8d35170c5f
 2013-03-16 00:41:46 +04:00