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The problem is that the rewriter must also rewrite an instruction ID in case that it's a [K|V]MOV[B|W|D|Q] instruction that moves from either K or SIMD register to GP register. when such instruction is rewritten in a way that it ends up as "xMOVx GP, [MEM]" it would be invalid if it's not changed to a general purpose MOV. The problem can only happen in case that the compiler spills a virtual register, which is then moved to a scalar register. In addition, checks were added to MOVD|MOVQ to ensure that when an invalid instruction is emitted it's not ignored as it used to be.
AsmJit
AsmJit is a lightweight library for machine code generation written in C++ language.
- Official Home Page (asmjit.com)
- Official Repository (asmjit/asmjit)
- Public Chat Channel
- Zlib License
See asmjit.com page for more details, examples, and documentation.
Documentation
Contributing
- See CONTRIBUTING page for more details
Breaking Changes
Breaking the API is sometimes inevitable, what to do?
- See Breaking Changes Guide, which is now part of AsmJit documentation
- See asmjit tests, they always compile and provide implementation of many use-cases:
- asmjit_test_emitters.cpp - Tests that demonstrate the purpose of emitters
- asmjit_test_assembler_x86.cpp - Tests targeting AsmJit's Assembler (x86/x64)
- asmjit_test_compiler_x86.cpp - Tests targeting AsmJit's Compiler (x86/x64)
- asmjit_test_instinfo.cpp - Tests that query instruction information
- asmjit_test_x86_sections.cpp - Multiple sections test.
- Visit our Gitter Chat if you need a quick help
Project Organization
/- Project root- src - Source code
- asmjit - Source code and headers (always point include path in here)
- core - Core API, backend independent except relocations
- arm - ARM specific API, used only by ARM and AArch64 backends
- x86 - X86 specific API, used only by X86 and X64 backends
- asmjit - Source code and headers (always point include path in here)
- test - Unit and integration tests (don't embed in your project)
- tools - Tools used for configuring, documenting, and generating files
- src - Source code
Ports
- 32-bit ARM/Thumb port (work in progress)
- RISC-V port (not in progress, help welcome)
Support
- AsmJit project has both community and commercial support, see AsmJit's Support Page
- You can help the development and maintenance through Petr Kobalicek's GitHub sponsors Profile
Notable Donors List:
Authors & Maintainers
- Petr Kobalicek kobalicek.petr@gmail.com