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
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
Lior Kaplan
71c1980025
Happy new year (Update copyright to 2016)
2016-01-01 20:06:12 +02:00
Dmitry Stogov
b4b6d58990
Add ability to prevent "useless" SSA variable creation for "refcounting inference".
2015-12-22 16:43:37 +03:00
Dmitry Stogov
c88ffa9a56
Added e-SSA based DFA optimisation framework (incomplete)
2015-12-16 00:49:44 +03:00
Dmitry Stogov
f243aaf985
Added e-SSA based DFA optimisation framework (incomplete)
2015-12-11 17:24:55 +03:00
Dmitry Stogov
fd20e6cee6
Apply local optimizatons to extended bacic block (this allows some optimizarions across few following BBs).
2015-12-10 01:17:35 +03:00
Dmitry Stogov
4d49736155
cleanup
2015-11-21 01:19:45 +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
