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csu3_am335x
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EVSE
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GPL
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php-8.1.12
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ext
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opcache
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jit
Folus Wen dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
..
dynasm dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
libudis86 dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
vtune dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
Makefile.frag dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
Makefile.frag.w32 dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
README.md dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_elf.c dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_elf.h dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_jit.c dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_jit.h dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_jit_arm64.dasc dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_jit_arm64.h dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_jit_disasm.c dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_jit_gdb.c dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_jit_gdb.h dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_jit_helpers.c dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_jit_internal.h dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_jit_oprofile.c dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_jit_perf_dump.c dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_jit_trace.c dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_jit_vm_helpers.c dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_jit_vtune.c dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_jit_x86.dasc dd8509b6b1 [Add][GPL][php] 2 vuotta sitten
zend_jit_x86.h dd8509b6b1 [Add][GPL][php] 2 vuotta sitten

README.md

Opcache JIT

This is the implementation of Opcache's JIT (Just-In-Time compiler), This converts the PHP Virtual Machine's opcodes into x64/x86 assembly, on POSIX platforms and Windows.

It generates native code directly from PHP byte-code and information collected by the SSA static analysis framework (a part of the opcache optimizer). Code is usually generated separately for each PHP byte-code instruction. Only a few combinations are considered together (e.g. compare + conditional jump).

See the JIT RFC for more details.

DynAsm

This uses DynAsm (developed for LuaJIT project) for the generation of native code. It's a very lightweight and advanced tool, but does assume good, and very low-level development knowledge of target assembler languages. In the past we tried LLVM, but its code generation speed was almost 100 times slower, making it prohibitively expensive to use.

The unofficial DynASM Documentation has a tutorial, reference, and instruction listing.

zend_jit_x86.dasc gets automatically converted to zend_jit_x86.c by the bundled dynasm during make.