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Artem Ukrainskiy 6277778f08 Zend: Compile a list assignment from an array literal without the array (#24180) 
[$a, $b] = [$b, $a]; built an array of the values, fetched every element
out of it again and freed it. When the result of the assignment is not
used, the right side is an array literal and the left side a flat list
with a target for every value, assign the values to the targets directly
instead.

The values are still evaluated in order before the first assignment and
a variable among them is copied first. Each target then takes its value,
so a value its target does not keep (a setter that drops it, the same
variable twice, a typed property that coerces it) is released at that
assignment rather than after the last one, and a destructor that throws
there stops the rest of the statement.

Assignments in the expression lists of a for loop, whose results are not
used either, are compiled the same way. Nested lists, keys on either
side, references, spread, a different number of values and targets and
a used result keep the usual compilation.

A swap goes from 922 to 467 instructions per call of a function doing
it, below a swap through a temporary variable (493).
2026-10-19 11:48:28 +02:00
..
assign_dim_op_result_type.phpt
Fix too wide type inference for ASSIGN_DIM_OP
2026-10-08 18:47:50 +02:00
assign_obj_001.phpt
typo
2022-08-29 17:12:57 +03:00
assign_obj_op_001.phpt
Fix memory leak
2022-11-07 11:07:58 +03:00
assign_op_001.phpt
Fix GH-8329 Print true/false instead of bool in error and debug messages (#8385)
2023-01-23 10:52:14 +01:00
assign_op_002.phpt
Deprecate implicit nullable parameter types (#12959)
2024-03-13 21:40:26 +01:00
assign_typed_ref_range_64bit.phpt
ext/opcache: Do not reuse the assigned range through typed references (#24210)
2026-10-11 04:30:22 -04:00
assign_typed_ref_range.phpt
ext/opcache: Do not reuse the assigned range through typed references (#24210)
2026-10-11 04:30:22 -04:00
block_pass_001.phpt
Migrate skip checks to --EXTENSIONS--, p3
2021-04-03 15:23:25 +02:00
block_pass_002.phpt
Migrate skip checks to --EXTENSIONS--, p3
2021-04-03 15:23:25 +02:00
block_pass_003.phpt
Zend: Warn when destructuring non-array values (#19439)
2025-08-29 16:06:34 +01:00
block_pass_004.phpt
Fixed incorrect QM_ASSIGN elimination
2023-07-24 15:42:30 +03:00
block_pass_005.phpt
Fixed incorrect QM_ASSIGN elimination
2023-07-31 14:50:13 +03:00
block_pass_006.phpt
Fixed inorrect QM_ASSIGN elimination
2023-11-01 09:54:58 +03:00
block_pass_007.phpt
VAR|TMP overhaul (GH-20628)
2026-01-31 19:44:56 +01:00
call_graph_stack_overflow.phpt
Fix call_stack buffer overflow in zend_analyze_calls()
2026-09-25 10:17:37 +02:00
coalesce_002.phpt
ext/opcache: applied fixers to improve test robustness (#23133)
2026-08-22 13:49:54 +01:00
coalesce.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
ct_eval_md5_sha1.phpt
Mark several functions with @compile-time-eval attribute. (#24212)
2026-10-09 23:32:28 +02:00
ct_eval_standard_functions.phpt
ext/standard: Allow compile-time evaluation of more standard string functions (#23913)
2026-09-28 00:20:56 +08:00
dce_001.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
dce_002.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
dce_003.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
dce_004.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
dce_005.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
dce_006.phpt
VAR|TMP overhaul (GH-20628)
2026-01-31 19:44:56 +01:00
dce_007.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
dce_008.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
dce_009.phpt
Implement GH-15680: Enhance zend_dump_op_array to Properly Represent Non-Printable Characters in String Literals
2024-12-27 12:53:02 +01:00
dce_010.phpt
Merge branch 'PHP-8.0'
2021-04-08 17:06:40 +02:00
dce_011.phpt
Fixed incorrect DCE for ADD_ARRAY_ELEMENT instruction
2021-11-25 13:33:26 +03:00
dce_012.phpt
Fixed incorrect DCE of a constructor call
2021-12-06 15:59:30 +03:00
dce_013.phpt
Fixed incorrect DCE for FREE
2022-02-28 11:44:22 +03:00
dce_014.phpt
Fix assertion
2023-12-25 13:22:03 +03:00
dce_015.phpt
Fix incorrect DCE due to unsound escape analysis
2026-09-28 23:18:46 +02:00
dce_016.phpt
Fix __isset escape analysis causing misoptimization
2026-09-29 19:27:01 +02:00
dce_017.phpt
Fix property hook escape analysis causing misoptimization
2026-09-29 19:27:02 +02:00
escape_analysis_array_access.phpt
Fix escape analysis for objects implementing ArrayAccess
2026-10-12 19:17:54 +02:00
fe_fetch_001.phpt
Fix SSA reconstruction when body of "foreach" loop is removed
2022-08-01 14:00:19 +03:00
fetch_dim_func_arg_unused_chain.phpt
Fix OSS-Fuzz #568005340: FETCH_DIM_FUNC_ARG partial conversion
2026-10-08 18:48:24 +02:00
gh8074.phpt
Fix GH-8074: Wrong type inference of range() result
2022-02-22 10:14:54 +01:00
gh8140a.phpt
Deprecate ${} string interpolation
2022-05-05 10:14:56 +02:00
gh8140b.phpt
Deprecate ${} string interpolation
2022-05-05 10:14:56 +02:00
gh10008.phpt
Fixed GH-10008: Narrowing occurred during type inference of ZEND_ADD_ARRAY_ELEMENT
2023-11-02 08:09:29 +03:00
gh10801.phpt
Fix GH-10801: Named arguments in CTE functions cause a segfault
2023-03-10 19:22:44 +01:00
gh11170.phpt
VAR|TMP overhaul (GH-20628)
2026-01-31 19:44:56 +01:00
gh11245_1.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
gh11245_2.phpt
Merge branch 'PHP-8.4' of github.com:php/php-src into PHP-8.5
2026-01-15 16:15:29 +01:00
gh14873.phpt
VAR|TMP overhaul (GH-20628)
2026-01-31 19:44:56 +01:00
gh18107_1.phpt
VAR|TMP overhaul (GH-20628)
2026-01-31 19:44:56 +01:00
gh18107_2.phpt
VAR|TMP overhaul (GH-20628)
2026-01-31 19:44:56 +01:00
gh19792.phpt
ext/opcache: applied fixers to improve test robustness (#23133)
2026-08-22 13:49:54 +01:00
gh21972.phpt
ext/opcache: unwrap reference wrappers in typed by-value returns (#21973)
2026-06-16 22:48:17 +02:00
gh23644.phpt
Fix GH-23644: crash on a constant-vs-constant empty array comparison
2026-09-12 12:40:23 +02:00
gh24063.phpt
Fix GH-24063: SCCP merges 0.0 and -0.0 into a single constant (#24064)
2026-10-02 16:20:51 +02:00
inference_001.phpt
Improve type narrowing fix
2022-04-10 11:22:36 +02:00
inference_002.phpt
Improve illegal offset error messages (#10504)
2023-02-08 12:11:41 +00:00
inference_003.phpt
ext/opcache: applied fixers to improve test robustness (#23133)
2026-08-22 13:49:54 +01:00
inference_004.phpt
Fix type narrowing warning during type inference of ZEND_FETCH_DIM_W
2022-04-25 11:16:10 +03:00
inference_005.phpt
Fix type inference
2022-04-25 12:15:55 +03:00
inference_006.phpt
Fix type inference
2022-05-11 12:09:11 +03:00
inference_007.phpt
Fix type inference
2022-05-11 12:39:26 +03:00
inference_008.phpt
Fix type inference
2022-05-16 12:41:25 +03:00
inference_009.phpt
Fix type inference
2022-06-06 11:13:53 +03:00
inference_010.phpt
Fix type inference
2022-06-14 10:20:45 +03:00
inference_011.phpt
Fix type inference
2022-06-14 11:59:35 +03:00
inference_012.phpt
Fix type inference for FETCH_DI_UNSET
2022-07-18 13:14:15 +03:00
inference_013.phpt
Fix type inference
2022-07-18 14:20:06 +03:00
inference_014.phpt
Fix type inference
2022-07-25 15:53:06 +03:00
inference_015.phpt
Fix type inference
2022-08-22 21:11:39 +03:00
inference_016.phpt
ext/opcache: applied fixers to improve test robustness (#23133)
2026-08-22 13:49:54 +01:00
inference_017.phpt
ext/opcache: applied fixers to improve test robustness (#23133)
2026-08-22 13:49:54 +01:00
inference_018.phpt
ext/opcache: applied fixers to improve test robustness (#23133)
2026-08-22 13:49:54 +01:00
inference_019.phpt
[RFC] Path to Saner Increment/Decrement operators (#10358)
2023-07-17 15:51:24 +01:00
inference_020.phpt
Fix SSA construction and type inference
2022-09-19 15:45:34 +03:00
inference_021.phpt
Fixed type inference
2022-09-26 12:19:12 +03:00
inference_022.phpt
Fixed GH-12511: Use must be in next opline assertion with patched infection
2023-10-31 07:51:36 +03:00
inference_023.phpt
Fixed GH-8251: Narrowing occurred during type inference of ZEND_FETCH_DIM_W
2023-11-28 22:49:39 +03:00
inference_024.phpt
Fixed type inference
2023-12-01 17:08:16 +03:00
inference_frameless.phpt
Merge branch 'PHP-8.3'
2024-04-08 20:22:02 +02:00
inline_001.phpt
Fix memory leak
2022-06-20 10:59:37 +03:00
isset_var_001.phpt
Fix ISSET_ISEMPTY_VAR missoptimization
2022-04-25 13:31:01 +03:00
jmp_001.phpt
VAR|TMP overhaul (GH-20628)
2026-01-31 19:44:56 +01:00
jmp_002.phpt
Fix incorrect JMP optimization
2021-12-10 01:39:28 +03:00
list_assign_from_array_literal.phpt
Zend: Compile a list assignment from an array literal without the array (#24180)
2026-10-19 11:48:28 +02:00
match_001.phpt
Fix memory leak
2022-10-17 15:08:21 +03:00
match_002.phpt
Fix memory leak because of incorrect optimization
2022-12-26 13:20:55 +03:00
match_003.phpt
Fix incorrect optimization
2023-03-27 17:57:54 +03:00
nullsafe_001.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
nullsafe_002.phpt
Fix nightly failure in test variation due to number of temp variables varying when observers are enabled
2024-07-27 16:37:01 +02:00
oss_fuzz_546798343.phpt
Fix OSS-Fuzz #546798343: Heap-buffer-overflow in zend_delete_call_instructions with callable conversion
2026-09-19 23:47:23 +02:00
prop_types.phpt
Fix nightly failure in test variation due to number of temp variables varying when observers are enabled
2024-07-27 16:37:01 +02:00
sccp_001.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_002.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_003.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_004.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_005.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_006.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_007.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_008.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_009.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_010.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_011.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_012.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_013.phpt
Migrate skip checks to --EXTENSIONS--, p3
2021-04-03 15:23:25 +02:00
sccp_014.phpt
Migrate skip checks to --EXTENSIONS--, p3
2021-04-03 15:23:25 +02:00
sccp_015.phpt
Migrate skip checks to --EXTENSIONS--, p3
2021-04-03 15:23:25 +02:00
sccp_016.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_017.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_018.phpt
Migrate skip checks to --EXTENSIONS--, p3
2021-04-03 15:23:25 +02:00
sccp_019.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_020.phpt
Migrate skip checks to --EXTENSIONS--, p3
2021-04-03 15:23:25 +02:00
sccp_021.phpt
Migrate skip checks to --EXTENSIONS--, p3
2021-04-03 15:23:25 +02:00
sccp_022.phpt
VAR|TMP overhaul (GH-20628)
2026-01-31 19:44:56 +01:00
sccp_023.phpt
Migrate skip checks to --EXTENSIONS--, p3
2021-04-03 15:23:25 +02:00
sccp_024.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_025.phpt
Migrate skip checks to --EXTENSIONS--, p3
2021-04-03 15:23:25 +02:00
sccp_026.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_027.phpt
Migrate skip checks to --EXTENSIONS--, p3
2021-04-03 15:23:25 +02:00
sccp_028.phpt
Migrate skip checks to --EXTENSIONS--, p3
2021-04-03 15:23:25 +02:00
sccp_029.phpt
Migrate skip checks to --EXTENSIONS--, p3
2021-04-03 15:23:25 +02:00
sccp_030.phpt
Migrate skip checks to --EXTENSIONS--, p3
2021-04-03 15:23:25 +02:00
sccp_031.phpt
Add zend_test.observer.enabled=0 to opcache tests asserting specific TMP count
2024-04-08 20:16:35 +02:00
sccp_032.phpt
VAR|TMP overhaul (GH-20628)
2026-01-31 19:44:56 +01:00
sccp_033.phpt
Migrate skip checks to --EXTENSIONS--, p3
2021-04-03 15:23:25 +02:00
sccp_034.phpt
Fix incorrect optimization that leads to memory leak
2021-12-13 13:08:05 +03:00
sccp_035.phpt
Fix memory leak in SCCP
2021-12-24 13:10:22 +03:00
sccp_036.phpt
Fixed NAN handling in SCCP
2022-01-10 19:39:19 +03:00
sccp_037.phpt
Fix too aggressive DCE that leads to memory leak
2022-01-28 12:17:46 +03:00
sccp_038.phpt
Enact follow-up phase of the "Path to Saner Increment/Decrement operators" RFC (#19374)
2025-08-23 14:36:39 +01:00
sccp_039.phpt
Fix incorrect constant propagation for VERIFY_RETURN_TYPE
2022-04-18 10:33:52 +03:00
sccp_040.phpt
Fix memory leak
2022-05-16 13:45:31 +03:00
sccp_041.phpt
Fix incorrect constant propagation for VERIFY_RETURN_TYPE
2022-06-20 11:30:07 +03:00
sccp_042.phpt
Evaluate ZEND_SPACESHIP in SCCP
2026-10-08 18:43:09 +02:00
sccp_043.phpt
SCCP: Evaluate negative string offset (#24095)
2026-10-04 10:01:27 +02:00
sccp_exception2.inc
Fix handling of sccp exceptions
2020-11-27 17:44:30 +01:00
sccp_exception2.phpt
Respect strict_types during sccp function call evaluation
2020-11-27 20:24:00 +01:00
sccp_exception3.phpt
Respect strict_types during sccp function call evaluation
2020-11-27 20:24:00 +01:00
sccp_exception.phpt
Handle exceptions during SCCP function evaluation
2020-11-27 17:00:12 +01:00
sccp_in_array.phpt
Only replace IN_ARRAY result type for JMPZ/JMPNZ
2020-11-30 11:18:21 +01:00
sccp_isset_dim_partial_object.phpt
Fix SCCP evaluation of isset()/empty() on dimension of non-escaping object
2026-10-05 19:59:34 +02:00
sccp_isset_isempty_string_dim.phpt
SCCP: Implement isset/empty with string and a dimension (#24108)
2026-10-04 16:42:55 +02:00
spaceship_range.phpt
Add range inference for SPACESHIP
2026-10-08 18:43:09 +02:00
tmp_001.phpt
ext/opcache: applied fixers to improve test robustness (#23133)
2026-08-22 13:49:54 +01:00
type_inference_class_consts1.phpt
Add zend_test.observer.enabled=0 to more tests
2024-04-10 01:17:10 +02:00
type_inference_class_consts2.phpt
Add zend_test.observer.enabled=0 to more tests
2024-04-10 01:17:10 +02:00
type_inference_class_consts3.phpt
Add zend_test.observer.enabled=0 to more tests
2024-04-10 01:17:10 +02:00
type_inference_class_consts4.phpt
Add zend_test.observer.enabled=0 to more tests
2024-04-10 01:17:10 +02:00
type_inference_final_class.phpt
VAR|TMP overhaul (GH-20628)
2026-01-31 19:44:56 +01:00
verify_return_type.phpt
XFAIL: Return types cannot be inferred through prototypes
2021-10-06 17:21:02 +03:00