Tracing JIT: Use recorded information about elements of arrays to generate better code for ASSIGN_DIM_OP.

Fixed condition

Tracing JIT: Record information about elements of arrays and use it to improve generated code (ASSIGN_DIM).

Fix result operand undef for ARM JIT as well

Same change as 6de8b08f605295eeda38908fa3df7b5d30e5071e.

JIT/arm64: fixed unsafe immediate encoding in commit d4ed6b6 (#7494)

In my local performance testing, function JIT/arm64 failed for wordpress
benchmark after commit d4ed6b6 (including th

JIT/arm64: fixed unsafe immediate encoding in commit d4ed6b6 (#7494)

In my local performance testing, function JIT/arm64 failed for wordpress
benchmark after commit d4ed6b6 (including the follow-up fix commit
487efac).

The root cause lies in that immediate encoding for ADD instruction is
unsafe. In this patch, we use the safe macro ADD_SUB_64_WITH_CONST_32.

Besides, safe macro MEM_ACCESS_64_WITH_UOFFSET is used for the two sites
where `opline->result.num` is used as the offset to access memory.

Change-Id: I4704ff27e9527e70061046d634652600e55ccc4f

show more ...

Apply fix for ARM JIT as well

Apply fix to ARM JIT as well

This is the same change as e22fb461275d3634ceb1d41c074af6088ec0df99,
but for the ARM JIT implementation.

Fixed ARM JIT failure introduced in d4ed6b635f99fe3ea4286c2f68c378a1ec60c3f9

JIT: prefer string reallocation instead of allocation/memcpy/deallocation

JIT: eliminate check for undefined constant if there is a persistent constant

JIT: Update run_time_cache slot in zend_jit_find_func helper

Fixed bug #81409 (Incorrect JIT code for ADD with a reference to array)

JIT: Fixed call to zend_free_compiled_variables()

Rename ZREG_FCARG1x/ZREG_FCARG1a into ZREG_FCARG1

Fixed register allocation when ADD/SUB/MUL two references in tracing JIT

The bug was introdueced by 7690fa0bd8fc715985c6a61f407dd297ad2375e5 and
leaded to failure in `make test TESTS="-d

Fixed register allocation when ADD/SUB/MUL two references in tracing JIT

The bug was introdueced by 7690fa0bd8fc715985c6a61f407dd297ad2375e5 and
leaded to failure in `make test TESTS="-d opcache.jit=1254 --repeat 3 ext/date/tests/bug30096.phpt"`

show more ...

JIT: Allow keeping result of FETCH_CONSTANT in a CPU register

JIT: Avoid useless EX(func) load

JIT: Avoid reloading of EX(run_time_cache)

JIT: Eliminate load of op_array->run_time_cache__ptr and use immediate value for immutable op_arrays if it's known at compile time

JIT: Avoid reloading of EX(run_time_cache)

JIT: Avoid redundand checks of number of passed arguments

Avoid redundand argument type verification

JIT: Optimize zend_vm_stack_free_args()

Avoid code genearation for destructors of immutable parameters of internal functions that cannot be changed in place.
Keep destructors for immutab

JIT: Optimize zend_vm_stack_free_args()

Avoid code genearation for destructors of immutable parameters of internal functions that cannot be changed in place.
Keep destructors for immutable array parameters, because few function may modufy them in-pace.

show more ...

Avoid redundand repeatable VM stack overflow checks

JIT/x86: Merge load and test of EX_CALL_INFO() into single instruction