Merge in upstream changes & apply fixes for Windows/MSVC by juntalis · Pull Request #1 · TheLuaOSProject/LuaJITMT

juntalis · 2026-09-13T23:46:27Z

Hey - found your fork pretty interesting so I started playing around with it locally. Had some changes if you want them:

Merged in the most recent upstream changes.
Renamed two aux folders to auxiliary. Windows doesn't allow folders named aux as it's a reserved device name inherited from MS-DOS. As result, you can't currently clone this repository on Windows.
Added support for compilation via MSVC 2019:
- Atomics implementations
- Extended 64-bit header guards with MSVC-specific builtins
- Replaced GCC alignment specifiers and GCC builtins with their respective LJ compatibility stubs.

Thanks to Temir Galeev. LuaJIT#1470

Thanks to Sergey Kaplun. LuaJIT#1471

Suggested by Sergey Bronnikov. LuaJIT#1472

Reported by Andrey Filipenkov. LuaJIT#1477

Thanks to Temir Galeev. LuaJIT#1470

Thanks to Sergey Kaplun. LuaJIT#1455

Reported by Sergey Kaplun. LuaJIT#1480

Reported by Miku AuahDark. LuaJIT#1482 LuaJIT#1460

Thanks to Dmitry Stogov. LuaJIT#1483

Reported by Matt Gerassimoff.

Thanks to Sergey Kaplun. LuaJIT#1485

Documentation in LuaJIT#1475. Backport discussion in LuaJIT#1476. Thanks to Appla, slashOwO, Sergey Kaplun, CppCXY.

Reported by goodusername123. LuaJIT#1487

Thanks to Dmitry Stogov. LuaJIT#1489

Thanks to Frityet. LuaJIT#1492

Reported by Gero Schwäricke. LuaJIT#1496 LuaJIT#1411

Reported by Kacper Michajłow. LuaJIT#1497

Thanks to David Komárek. LuaJIT#1498

Thanks to Peter Marreck and Peter Cawley. LuaJIT#1499

Reported by FMiS. LuaJIT#1500

Thanks to Sander Bos.

Reported by zyxwvu Shi. LuaJIT#1506

Thanks to Sergey Kaplun. LuaJIT#1502

Thanks to rvanschoren. LuaJIT#1510

Thanks to Appla. LuaJIT#1512

Thanks to Christian Clason and Justin M. Keyes. LuaJIT#1513

Reported by Elias Hogstvedt. LuaJIT#1514

Thanks to Minsoo Choo.

Mike Pall added 30 commits June 13, 2026 10:59

Fix corner case of os.time().

72d2061

Thanks to Temir Galeev. LuaJIT#1470

Merge branch 'master' into v2.1

194d7f2

Fix stack overflow relimit handling.

d2c1327

Thanks to Sergey Kaplun. LuaJIT#1471

Merge branch 'master' into v2.1

0bf2614

Optionally return PC position in jit.util.tracesnap().

8e6520a

Suggested by Sergey Bronnikov. LuaJIT#1472

iOS: Avoid macro name collision.

7ff8551

Reported by Andrey Filipenkov. LuaJIT#1477

Make check in os.time() consistent.

295d45f

Thanks to Temir Galeev. LuaJIT#1470

Merge branch 'master' into v2.1

9d145d2

FFI/MacOS: Fix calling convention for on-stack varargs.

a2bde60

Thanks to Sergey Kaplun. LuaJIT#1455

x64/ARM64/MIPS64: Fix constant bit shift code generation.

acb2234

Reported by Sergey Kaplun. LuaJIT#1480

Don't use destroyed lock when profiler has been stopped.

fed6d47

Reported by Miku AuahDark. LuaJIT#1482 LuaJIT#1460

DynASM/x86: Fix insertps instruction encoding.

5dd996e

Thanks to Dmitry Stogov. LuaJIT#1483

x64: Fix callback result handling.

859ad93

Reported by Matt Gerassimoff.

Merge branch 'master' into v2.1

3c4f9fe

x64/LJ_GC64: Avoid store-to-load forwarding stall after stack restore.

14d8a7a

Thanks to Sergey Kaplun. LuaJIT#1485

Backport some v3.0 syntax extensions.

a2ce811

Documentation in LuaJIT#1475. Backport discussion in LuaJIT#1476. Thanks to Appla, slashOwO, Sergey Kaplun, CppCXY.

Document bit operator bytecode compatibility.

5f627e4

Fix documentation about Lua 5.2 extensions/compatibility.

2460b3f

Reported by goodusername123. LuaJIT#1487

DynASM/x86: Fix movd/movq and vmovd/vmovq operand sizes.

346ab58

Thanks to Dmitry Stogov. LuaJIT#1489

FFI: Fix widening semantics for 64 bit arithmetic.

e4d8051

Thanks to Frityet. LuaJIT#1492

Merge branch 'master' into v2.1

a471ab7

x86: Conditionally use SSE3 for 64 bit conversions.

faaf663

Reported by Gero Schwäricke. LuaJIT#1496 LuaJIT#1411

x64/LJ_GC64: Enable XLOAD/STRREF fusion.

afa81a5

Optimize common 1-char case of string.sub/string.byte.

5944725

Reported by Kacper Michajłow. LuaJIT#1497

FFI: Set cur_L in FFI callback.

4886b67

Thanks to David Komárek. LuaJIT#1498

Don't fold -a / -b for unsigned operands.

5ed524c

Thanks to Peter Marreck and Peter Cawley. LuaJIT#1499

Merge branch 'master' into v2.1

2808400

Modernize jit.* Lua modules.

f30aabe

x64/LJ_GC64: Fix XLOAD fusion.

1edc3e5

Reported by FMiS. LuaJIT#1500

Compile unpack().

52cdb12

Thanks to Sander Bos.

Mike Pall and others added 13 commits August 18, 2026 15:01

FFI: Mark cts->L in atomic phase.

71797fa

Reported by zyxwvu Shi. LuaJIT#1506

Merge branch 'master' into v2.1

941ddb5

Handle OOM error during trace stitching.

c556910

Thanks to Sergey Kaplun. LuaJIT#1502

Fix next() recording immediately after ITERN despecialization.

27f169c

Thanks to rvanschoren. LuaJIT#1510

Fix unpack() recording.

21ecb36

Thanks to Appla. LuaJIT#1512

Fix unpack() recording.

8c23d6a

Thanks to Christian Clason and Justin M. Keyes. LuaJIT#1513

Add FOLD rule for ALEN of TNEW/TDUP.

1ee778a

FFI: Adjust J->maxslot after ffi.offsetof.

3000f7c

Reported by Elias Hogstvedt. LuaJIT#1514

Merge branch 'master' into v2.1

24c20c9

PPC: Fix string.* fast functions with P64 set (testing only).

c6ffc14

Thanks to Minsoo Choo.

Merge remote-tracking branch 'upstream/v2.1' into mt-v2.1

504230b

Add additional MSVC fixes.

c55a6dd

Add one more MSVC fix

db50040

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Merge in upstream changes & apply fixes for Windows/MSVC - #1

Merge in upstream changes & apply fixes for Windows/MSVC#1
juntalis wants to merge 43 commits into
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juntalis:v2.1

juntalis commented Sep 13, 2026

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juntalis commented Sep 13, 2026

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