mirror of
https://github.com/asmjit/asmjit.git
synced 2025-12-18 04:54:36 +03:00
2ff454d415
* Reworked register operands - all vector registers are now
platform::Vec deriving from UniVec (universal vector operand),
additionally, there is no platform::Reg, instead asmjit::Reg
provides all necessary features to make it a base register for
each target architecture
* Reworked casting between registers - now architecture agnostic
names are preferred - use Gp32 instead of Gpd or GpW, Gp64
instead of Gpq and GpX, etc...
* Reworked vector registers and their names - architecture
agnostic naming is now preferred Vec32, Vec64, Vec128, etc...
* Reworked naming conventions used across AsmJit - for clarity
Identifiers are now prefixed with the type, like sectionId(),
labelId(), etc...
* Reworked how Zone and ZoneAllocator are used across AsmJit,
prefering Zone in most cases and ZoneAllocator only for
containers - this change alone achieves around 5% better
performance of Builder and Compiler
* Reworked LabelEntry - decreased the size of the base entry
to 16 bytes for anonymous and unnamed labels. Avoided an
indirection when using labelEntries() - LabelEntry is now
a value and not a pointer
* Renamed LabelLink to Fixup
* Added a new header <asmjit/host.h> which would include
<asmjit/core.h> + target tools for the host architecture,
if enabled and supported
* Added new AArch64 instructions (BTI, CSSC, CHKFEAT)
* Added a mvn_ alternative of mvn instruction (fix for Windows
ARM64 SDK)
* Added more AArch64 CPU features to CpuInfo
* Added better support for Apple CPU detection (Apple M3, M4)
* Added a new benchmarking tool asmjit_bench_overhead, which
benchmarks the overhead of CodeHolder::init()/reset() and
creating/attaching emitters to it. Thanks to the benchmark the
most common code-paths were optimized
* Added a new benchmarking tool asmjit_bench_regalloc, which
aims to benchmark the cost and complexity of register allocation.
* Renamed asmjit_test_perf to asmjit_bench_codegen to make it
clear what is a test and what is a benchmark
AsmJit Instruction Database
This is a database of instructions that is used by AsmJit to generate its internal database and also assembler implementations. This project started initially as AsmDB, but was merged to AsmJit later to make the maintenance easier. The database was created in a way so that each instruction definition would only need a single line in JSON data file. The data is then processed by architecture specific data readers that make the data canonical and ready for processing.
AsmJit database provides the following ISAs:
isa_x86.json- provides X86 instruction data (both 32-bit and 64-bit)isa_aarch32.json- provides AArch32 instruction data (A32/T16/T32 encoding)isa_aarch64.json- provides AArch64 instruction data (A64 encoding)isa_aarch64_sme.json- provides AArch64 SME instruction data (work-in-progress)
To Be Documented
This project will be refactored and documented in the future.
License
AsmJit database is licensed under Zlib License