History log of /PHP-7.4/ext/opcache/Optimizer/dce.c (Results 1 – 25 of 33)
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# 29fa4d20 08-Apr-2021 Nikita Popov

Don't mark non-refcounted phi as live

If the value is not refcounted, then it doesn't matter if the
FREE gets dropped.


# 0826a548 08-Apr-2021 Nikita Popov

Fix DCE of FREE of COALESCE

When encountering the following SSA graph:

BB1:
#2.T1 [string] = COALESCE #1.CV0($str) [null, string] BB2

BB2:
#5.T1 [st

Fix DCE of FREE of COALESCE

When encountering the following SSA graph:

BB1:
#2.T1 [string] = COALESCE #1.CV0($str) [null, string] BB2

BB2:
#5.T1 [string] = QM_ASSIGN string("")

BB3:
#7.X1 [string] = Phi(#2.X1 [string], #5.X1 [string])
FREE #7.T1 [string]

We would currently determine that #7, #5 are dead, and eliminate
the FREE and QM_ASSIGN. However, we cannot eliminate #2, as
COALESCE is also responsible for control flow.

Fix this my marking all non-CV phis as live to start with. This
can be relaxed to check the kind of the source instruction, but
I couldn't immediately come up with a case where it would be
useful.

show more ...


Revision tags: php-7.3.13RC1, php-7.2.26RC1, php-7.4.0, php-7.2.25, php-7.3.12, php-7.4.0RC6, php-7.3.12RC1, php-7.2.25RC1, php-7.4.0RC5, php-7.1.33, php-7.2.24, php-7.3.11, php-7.4.0RC4, php-7.3.11RC1, php-7.2.24RC1, php-7.4.0RC3, php-7.2.23, php-7.3.10, php-7.4.0RC2, php-7.2.23RC1, php-7.3.10RC1, php-7.4.0RC1, php-7.1.32, php-7.2.22, php-7.3.9, php-7.4.0beta4, php-7.2.22RC1, php-7.3.9RC1
# 4eeb41d1 13-Aug-2019 Nikita Popov

Fixed bug #77191


Revision tags: php-7.4.0beta2, php-7.1.31, php-7.2.21, php-7.3.8, php-7.4.0beta1, php-7.2.21RC1, php-7.3.8RC1, php-7.4.0alpha3
# 48ca5a1e 05-Jul-2019 Dmitry Stogov

Replace ZEND_ASSIGN_ADD (and others) by ZEND_ASSIGN_OP, ZEND_ASSIGN_DIM_OP, ZEND_ASSGIN_OBJ_OP and ZEND_ASSIGN_STATIC_PROP_OP


Revision tags: php-7.3.7, php-7.2.20, php-7.4.0alpha2, php-7.3.7RC3, php-7.3.7RC2, php-7.2.20RC2, php-7.4.0alpha1, php-7.3.7RC1, php-7.2.20RC1, php-7.2.19, php-7.3.6, php-7.1.30, php-7.2.19RC1, php-7.3.6RC1, php-7.1.29, php-7.2.18, php-7.3.5
# 4d0d7ce3 23-Apr-2019 Dmitry Stogov

Don't eliminate BIND_STATIC if it may cause undefined constant warning


# 1827d784 22-Apr-2019 Dmitry Stogov

Remove unused BIND_STATIC insructions


Revision tags: php-7.2.18RC1, php-7.3.5RC1, php-7.2.17, php-7.3.4, php-7.1.28, php-7.3.4RC1, php-7.2.17RC1, php-7.1.27, php-7.3.3, php-7.2.16, php-7.3.3RC1, php-7.2.16RC1, php-7.2.15, php-7.3.2
# da919a8b 05-Feb-2019 Dmitry Stogov

Remove copyright years.


Revision tags: php-7.2.15RC1, php-7.3.2RC1
# 3269e884 17-Jan-2019 Nikita Popov

Implement single-pass live range calculation

Instead of interleaving creation of live-ranges with the main
compiler code, compute them in a separate pass over the opcodes
as part of

Implement single-pass live range calculation

Instead of interleaving creation of live-ranges with the main
compiler code, compute them in a separate pass over the opcodes
as part of pass_two. Additionally, do not keep live ranges
synchronized during optimization in opcache and instead use the
same mechanism to recompute them after optimization.

show more ...


Revision tags: php-5.6.40, php-7.1.26, php-7.3.1, php-7.2.14
# e219ec14 07-Jan-2019 Nikita Popov

Implement typed properties

RFC: https://wiki.php.net/rfc/typed_properties_v2

This is a squash of PR #3734, which is a squash of PR #3313.

Co-authored-by: Bob Weinand <bobwe

Implement typed properties

RFC: https://wiki.php.net/rfc/typed_properties_v2

This is a squash of PR #3734, which is a squash of PR #3313.

Co-authored-by: Bob Weinand <bobwei9@hotmail.com>
Co-authored-by: Joe Watkins <krakjoe@php.net>
Co-authored-by: Dmitry Stogov <dmitry@zend.com>

show more ...


Revision tags: php-7.2.14RC1, php-7.3.1RC1, php-5.6.39, php-7.1.25, php-7.2.13, php-7.0.33, php-7.3.0, php-7.1.25RC1, php-7.2.13RC1, php-7.3.0RC6, php-7.1.24, php-7.2.12, php-7.3.0RC5
# 9afce019 01-Nov-2018 Zeev Suraski

Future-proof email addresses


# 67e0138c 01-Nov-2018 Zeev Suraski

Future-proof email addresses...


Revision tags: php-7.1.24RC1, php-7.2.12RC1, php-7.3.0RC4, php-7.1.23, php-7.2.11, php-7.3.0RC3, php-7.1.23RC1, php-7.2.11RC1, php-7.3.0RC2, php-5.6.38, php-7.1.22, php-7.3.0RC1, php-7.2.10, php-7.0.32, php-7.1.22RC1, php-7.3.0beta3, php-7.2.10RC1, php-7.1.21, php-7.2.9, php-7.3.0beta2
# 84b195d9 10-Aug-2018 Gabriel Caruso

Fix some misspellings


Revision tags: php-7.1.21RC1, php-7.3.0beta1, php-7.2.9RC1, php-5.6.37, php-7.1.20, php-7.3.0alpha4, php-7.0.31, php-7.2.8, php-7.1.20RC1, php-7.2.8RC1, php-7.3.0alpha3, php-7.3.0alpha2, php-7.1.19, php-7.2.7
# 609385bb 13-Jun-2018 Xinchen Hui

Fixed bug #76446 (zend_variables.c:73: zend_string_destroy: Assertion `!(zval_gc_flags((str)->gc)).


Revision tags: php-7.1.19RC1, php-7.3.0alpha1, php-7.2.7RC1, php-7.1.18, php-7.2.6, php-7.2.6RC1, php-7.1.18RC1, php-5.6.36, php-7.2.5, php-7.1.17, php-7.0.30, php-7.1.17RC1, php-7.2.5RC1, php-5.6.35, php-7.0.29, php-7.2.4, php-7.1.16
# 4758164a 15-Mar-2018 Xinchen Hui

Fixed bug #76094 (Access violation when using opcache)


Revision tags: php-7.1.16RC1, php-7.2.4RC1, php-7.1.15, php-5.6.34, php-7.2.3, php-7.0.28, php-7.2.3RC1, php-7.1.15RC1, php-7.1.14, php-7.2.2, php-7.1.14RC1, php-7.2.2RC1, php-7.1.13, php-5.6.33, php-7.2.1, php-7.0.27
# a6519d05 02-Jan-2018 Xinchen Hui

year++


# 7a7ec01a 02-Jan-2018 Xinchen Hui

year++


# ee45104d 16-Dec-2017 Nikita Popov

Fixed bug #75698


Revision tags: php-7.2.1RC1, php-7.1.13RC1, php-7.0.27RC1, php-7.2.0, php-7.1.12, php-7.0.26, php-7.1.12RC1, php-7.2.0RC6, php-7.0.26RC1, php-7.1.11, php-5.6.32, php-7.2.0RC5, php-7.0.25
# d042d1d8 18-Oct-2017 Xinchen Hui

Cleanup cfg flags & Added ZEND_FUNC_HAS_EXTENED_INFO


# e53a9aaa 17-Oct-2017 Xinchen Hui

Fixed bug (assertion fails with extended info generated)


# 2929110c 10-Oct-2017 Dmitry Stogov

Fixed cleanup after optimization passes


Revision tags: php-7.1.11RC1, php-7.2.0RC4, php-7.0.25RC1, php-7.1.10, php-7.2.0RC3, php-7.0.24
# 8109ebbd 18-Sep-2017 Dmitry Stogov

Allow removing of unused func_get_args() and func_get_num_args().


# 80abd813 14-Sep-2017 Dmitry Stogov

Fixed escape analysis for ASSIGN_DIM/ASSIGN_OBJ opcodes and improved DCE


Revision tags: php-7.2.0RC2, php-7.1.10RC1, php-7.0.24RC1
# f5ef1a83 08-Sep-2017 Dmitry Stogov

Collect all jump optimisations in a single optimization pass.
Run this pass twice (after SCCP and after DCE).


# 36ddda17 06-Sep-2017 Dmitry Stogov

Comments


# becb4d6d 01-Sep-2017 Dmitry Stogov

Remove dead allocations of non-escaping objects


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