Commit graph

1027 commits

Author SHA1 Message Date
Vyacheslav Egorov
59c2698970 Merge branch 'upstream' into merge 2023-05-12 15:30:03 +03:00
Vyacheslav Egorov
38ab2e5f71 Merge branch 'master' into merge 2023-05-12 15:29:52 +03:00
Vyacheslav Egorov
3247aabf75 Sync to upstream/release/576 2023-05-12 15:15:01 +03:00
JohnnyMorganz
8d8c7974f5
Use correct globalScope in on demand type checker (#923)
Fixes #922 

Unsure if this needs to be put behind another FFlag, since the on demand
type checker fflag currently exists
2023-05-11 04:35:56 -07:00
Jan
45c6476d41
Add missing include for integer types (#925)
Closes #924

`uintptr_t` and `uint32` (and possibly more) were undefined because
`cstdint` was not included.
2023-05-09 11:42:13 -07:00
Andy Friesen
0014905b69
Luau.Analyze.CLI must link pthreads on Linux. (#920) 2023-05-05 15:41:46 -07:00
Andy Friesen
f7c780164d Add pthread as a link dependency to Luau.Analyze.CLI for Linux. 2023-05-05 15:33:05 -07:00
Andy Friesen
8453570658
Sync to upstream/release/575 (#919)
* `Luau.Analyze.CLI` now has experimental support for concurrent type
checking. Use the option `-jN` where `N` is the number of threads to
spawn.
* Improve typechecking performance by ~17% by making the function
`Luau::follow` much more efficient.
* Tighten up the type of `os.date`
* Removed `ParseOptions::allowTypeAnnotations` and
`ParseOptions::supportContinueStatement`

New solver

* Improve the reliability of function overload resolution
* More work toward supporting parallel type checking
* Fix a bug in inference of `==` and `~=` which would erroneously infer
that the operands were `boolean`
* Better error reporting when `for...in` loops are used incorrectly.

CodeGen

* Fix unwind registration when libunwind is used on Linux
* Fixed replaced IR instruction use count
* Convert X64 unwind info generation to standard prologue
* Implement A64 unwind info support for Dwarf2
* Live in/out data for linear blocks is now created
* Add side-exit VM register requirements to the IR dump
* Reuse ConstPropState between block chains 
* Remove redundant base update

---------

Co-authored-by: Arseny Kapoulkine <arseny.kapoulkine@gmail.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
2023-05-05 14:52:49 -07:00
Andy Friesen
12c1edf6c6 This test fails on a64 so disable it for now. 2023-05-05 13:25:00 -07:00
Andy Friesen
95f0a04e06 Merge branch 'upstream' into merge 2023-05-05 12:57:26 -07:00
Andy Friesen
cc96f86c08 Merge branch 'master' into merge 2023-05-05 12:57:23 -07:00
Andy Friesen
716f63321a Sync to upstream/release/575 2023-05-05 12:57:12 -07:00
JohnnyMorganz
5891de6724
Fix grammar issues (#915)
- The type list for function declarations does not accept defaults, but
the grammar incorrectly allowed this.
- Allow the empty table type `{}`
- Allow composite types and types surrounded by parentheses (e.g.
`string??`, `(string)`, `(string | number) & boolean`)

---------

Co-authored-by: vegorov-rbx <75688451+vegorov-rbx@users.noreply.github.com>
2023-05-04 05:39:18 -07:00
JohnnyMorganz
e8c0550586
Improve the type for os.date using overloads (#874)
Improves the type of `os.date` based on its documentation
https://create.roblox.com/docs/reference/engine/libraries/os#date

We know that the DateTypeResult table is only returned when the format
string is either "*t" or "!*t", and otherwise its just a formatted
string. This changes the type to showcase this appropriately.

I put the more strict type first in the overload because the ordering
makes a difference

Note: the API docs used in studio
(https://github.com/MaximumADHD/Roblox-Client-Tracker/blob/roblox/api-docs/en-us.json)
may need to be updated to reflect the overloaded type instead.


![image](https://user-images.githubusercontent.com/19635171/226919224-e9e8703b-2729-44b0-93f6-434c01bda204.png)

It may be possible to add a lint of this too to provide analysis similar
to how `string.format` works with a FormatString error. Will leave that
for a different PR though
2023-05-01 08:09:05 -07:00
vegorov-rbx
4b267aa5c5
Sync to upstream/release/574 (#910)
* Added a limit on how many instructions the Compiler can safely produce
(reported by @TheGreatSageEqualToHeaven)

C++ API Changes:
* With work started on read-only and write-only properties,
`Property::type` member variable has been replaced with `TypeId type()`
and `setType(TypeId)` functions.
* New `LazyType` unwrap callback now has a `void` return type, all
that's required from the callback is to write into `unwrapped` field.

In our work on the new type solver, the following issues were fixed:

* Work has started to support https://github.com/Roblox/luau/pull/77 and
https://github.com/Roblox/luau/pull/79
* Refinements are no longer applied on l-values, removing some
false-positive errors
* Improved overload resolution against expected result type
* `Frontend::prepareModuleScope` now works in the new solver
* Cofinite strings are now comparable

And these are the changes in native code generation (JIT):

* Fixed MIN_NUM and MAX_NUM constant fold when one of the arguments is
NaN
* Added constant folding for number conversions and bit operations
* Value spilling and rematerialization is now supported on arm64
* Improved FASTCALL2K IR generation to support second argument constant
* Added value numbering and load/store propagation optimizations
* Added STORE_VECTOR on arm64, completing the IR lowering on this target
2023-04-28 12:55:13 -07:00
Vyacheslav Egorov
348f85cc1c Merge branch 'upstream' into merge 2023-04-28 14:57:08 +03:00
Vyacheslav Egorov
8bd3714566 Merge branch 'master' into merge 2023-04-28 14:56:34 +03:00
Vyacheslav Egorov
1c2ce0d731 Sync to upstream/release/574 2023-04-28 14:55:55 +03:00
JohnnyMorganz
8173491d86
Update grammar.md (#909)
Fix issues mentioned in https://github.com/Roblox/luau/issues/908
2023-04-24 14:21:26 -05:00
Andy Friesen
fe7621ee8c
Sync to upstream/release/573 (#903)
* Work toward affording parallel type checking
* The interface to `LazyType` has changed:
* `LazyType` now takes a second callback that is passed the `LazyType&`
itself. This new callback is responsible for populating the field
`TypeId LazyType::unwrapped`. Multithreaded implementations should
acquire a lock in this callback.
* Modules now retain their `humanReadableNames`. This reduces the number
of cases where type checking has to call back to a `ModuleResolver`.
* https://github.com/Roblox/luau/pull/902
* Add timing info to the Luau REPL compilation output

We've also fixed some bugs and crashes in the new solver as we march
toward readiness.
* Thread ICEs (Internal Compiler Errors) back to the Frontend properly
* Refinements are no longer applied to lvalues
* More miscellaneous stability improvements

Lots of activity in the new JIT engine:

* Implement register spilling/restore for A64
* Correct Luau IR value restore location tracking
* Fixed use-after-free in x86 register allocator spill restore
* Use btz for bit tests
* Finish branch assembly support for A64
* Codesize and performance improvements for A64
* The bit32 library has been implemented for arm and x64

---------

Co-authored-by: Arseny Kapoulkine <arseny.kapoulkine@gmail.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
2023-04-21 15:14:26 -07:00
Andy Friesen
1126490e24 Merge branch 'upstream' into merge 2023-04-21 14:45:20 -07:00
Andy Friesen
a0f9842ba2 Merge branch 'master' into merge 2023-04-21 14:41:12 -07:00
Andy Friesen
d5cdb687e0 Sync to upstream/release/573 2023-04-21 14:41:03 -07:00
JohnnyMorganz
8ed808eb52
Add prefix and name location to AstTypeReference (#902)
Closes #901
2023-04-17 07:19:56 -07:00
vegorov-rbx
d141a5c48d
Sync to upstream/release/572 (#899)
* Fixed exported types not being suggested in autocomplete
* `T...` is now convertible to `...any` (Fixes
https://github.com/Roblox/luau/issues/767)
* Fixed issue with `T?` not being convertible to `T | T` or `T?`
(sometimes when internal pointer identity is different)
* Fixed potential crash in missing table key error suggestion to use a
similar existing key
* `lua_topointer` now returns a pointer for strings

C++ API Changes:
* `prepareModuleScope` callback has moved from TypeChecker to Frontend
* For LSPs, AstQuery functions (and `isWithinComment`) can be used
without full Frontend data

A lot of changes in our two experimental components as well.

In our work on the new type-solver, the following issues were fixed:
* Fixed table union and intersection indexing
* Correct custom type environments are now used
* Fixed issue with values of `free & number` type not accepted in
numeric operations

And these are the changes in native code generation (JIT):
* arm64 lowering is almost complete with support for 99% of IR commands
and all fastcalls
* Fixed x64 assembly encoding for extended byte registers
* More external x64 calls are aware of register allocator
* `math.min`/`math.max` with more than 2 arguments are now lowered to IR
as well
* Fixed correctness issues with `math` library calls with multiple
results in variadic context and with x64 register conflicts
* x64 register allocator learnt to restore values from VM memory instead
of always using stack spills
* x64 exception unwind information now supports multiple functions and
fixes function start offset in Dwarf2 info
2023-04-14 11:06:22 -07:00
Vyacheslav Egorov
33b95582ac Build fix 2023-04-14 16:46:13 +03:00
Vyacheslav Egorov
1ffbf6cd14 Merge branch 'upstream' into merge 2023-04-14 15:06:30 +03:00
Vyacheslav Egorov
70ef0fbc83 Merge branch 'master' into merge 2023-04-14 15:06:24 +03:00
Vyacheslav Egorov
5e771b87ae Sync to upstream/release/572 2023-04-14 15:05:27 +03:00
Petri Häkkinen
7345891f6b
Add lua_getuserdatadtor (#870)
Some userdata objects may need to support manual destruction in addition
to automatic GC. For example, files, threads, GPU resources and objects
with large external allocations.

With Lua, a finalizer can be _generically_ called by invoking the __gc
metamethod manually, but this is currently not possible with tagged
userdata in Luau because it's not possible to query the destructor
associated with an userdata. While it is possible to workaround this by
duplicating the destructor table locally on client side (*), it's more
convenient to deduplicate the data and get the destructor using the API
instead.

(*) Note: a separate destructor table for each VM may be required if the
VMs use different set of tags.

Implementation notes:

1. I first considered adding a typedef for lua_Destructor but
unfortunately there are two kinds of destructors, one with and one
without the lua_State* argument, so I decided against it at this point.
Maybe it should be added later if the destructor API is unified (by
dropping the Lua state pointer argument?).

2. For some reason the conformance test produced warning "qualifier
applied to function type has no meaning; ignored" on VS2017 (possibly
because the test framework does not like function pointers for some
reason?). I silenced this by pulling out the test expressions from those
CHECKs.
2023-04-11 12:46:55 -07:00
Andy Friesen
ba67fb275e
Sync to upstream/release/571 (#895)
* `table.sort` was improved further. It now guarentees N*log(N) time
complexity in the worst case.
* Fix https://github.com/Roblox/luau/issues/880

We are also working on fixing final bugs and crashes in the new type
solver.

On the CodeGen front we have a few things going on:
* We have a smarter register allocator for the x86 JIT
* We lower more instructions on arm64
* The vector constructor builtin is now translated to IR

---------

Co-authored-by: Arseny Kapoulkine <arseny.kapoulkine@gmail.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
2023-04-07 14:01:29 -07:00
Andy Friesen
395bf5cdf5 Merge branch 'upstream' into merge 2023-04-07 12:56:54 -07:00
Andy Friesen
97f8bf6cd8 Merge branch 'master' into merge 2023-04-07 12:56:51 -07:00
Andy Friesen
5309401f49 Sync to upstream/release/571 2023-04-07 12:56:27 -07:00
vegorov-rbx
d148d7d574
Luau Recap: March 2023 (#886) 2023-03-31 11:52:31 -07:00
vegorov-rbx
1212fdacbf
Sync to upstream/release/570 (#885)
Once again, all of our changes this week are for new type solver and the
JIT.

In the new type solver, we fixed cyclic type alias handling and multiple
stability issues.

In the JIT, our main progress was for arm64, where, after lowering 36%
of instructions, we start seeing first Luau functions executing
natively.
For x64, we performed code cleanup and refactoring to allow for future
optimizations.
2023-03-31 11:42:49 -07:00
Vyacheslav Egorov
d071e410ce g++ build fix 2023-03-31 16:25:13 +03:00
Vyacheslav Egorov
d70df6362e Merge branch 'upstream' into merge 2023-03-31 15:23:00 +03:00
Vyacheslav Egorov
c6b6ab6150 Merge branch 'master' into merge 2023-03-31 15:22:57 +03:00
Vyacheslav Egorov
d1acde36bb Sync to upstream/release/570 2023-03-31 15:21:14 +03:00
Andy Friesen
b4ebad4862
Sync to upstream/release/569 (#878)
All of our changes this week have been focused on the new type solver
and the JIT.

As we march toward feature parity with the old solver, we've tightened
up a bunch of lingering issues with overload resolution, unsealed
tables, and type normalization. We've also fixed a bunch of crashes and
assertion failures in the new solver.

On the JIT front, we've started work on an A64 backend, improved the IR
analysis in a bunch of cases, and implemented assembly generation for
the builtin functions `type()` and `typeof()`.

---------

Co-authored-by: Arseny Kapoulkine <arseny.kapoulkine@gmail.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
2023-03-24 11:03:04 -07:00
Andy Friesen
c9554518c6 Merge branch 'upstream' into merge 2023-03-24 10:35:02 -07:00
Andy Friesen
ce188220ba Merge branch 'master' into merge 2023-03-24 10:34:57 -07:00
Andy Friesen
81200e13f6 Sync to upstream/release/569 2023-03-24 10:34:14 -07:00
Petri Häkkinen
0d6aacf407
RFC: Floor division operator (#832)
[Rendered](https://github.com/petrihakkinen/luau/blob/rfc-floor-division/rfcs/syntax-floor-division-operator.md)
2023-03-20 15:12:48 -07:00
Arseny Kapoulkine
a4b31f940a
Update compatibility.md
Remove weak opposition to `//` operator as we decided to merge the RFC to support it.
2023-03-20 11:09:58 -07:00
vegorov-rbx
42a2805f85
Sync to upstream/release/568 (#865)
* A small subset of control-flow refinements have been added to
recognize type options that are unreachable after a
conditional/unconditional code block. (Fixes
https://github.com/Roblox/luau/issues/356).

Some examples:
```lua
local function f(x: string?)
    if not x then return end

    -- x is 'string' here
end
```
Throwing calls like `error` or `assert(false)` instead of 'return' are
also recognized.
Existing complex refinements like type/typeof and tagged union checks
are expected to work, among others.

To enable this feature, `LuauTinyControlFlowAnalysis` exclusion has to
be removed from `ExperimentalFlags.h`.
If will become enabled unconditionally in the near future.

* Linter has been integrated into the typechecker analysis so that
type-aware lint warnings can work in any mode
`Frontend::lint` methods were deprecated, `Frontend::check` has to be
used instead with `runLintChecks` option set.
Resulting lint warning are located inside `CheckResult`.

* Fixed large performance drop and increased memory consumption when
array is filled at an offset (Fixes
https://github.com/Roblox/luau/issues/590)
* Part of [Type error suppression
RFC](https://github.com/Roblox/luau/blob/master/rfcs/type-error-suppression.md)
was implemented making subtyping checks with `any` type transitive.

---
In our work on the new type-solver:
* `--!nocheck` mode no longer reports type errors
* New solver will not be used for `--!nonstrict` modules until all
issues with strict mode typechecking are fixed
* Added control-flow aware type refinements mentioned earlier

In native code generation:
* `LOP_NAMECALL` has been translated to IR
* `type` and `typeof` builtin fastcalls have been translated to
IR/assembly
* Additional steps were taken towards arm64 support
2023-03-17 12:20:37 -07:00
Vyacheslav Egorov
1c4d7a6be7 Merge branch 'upstream' into merge 2023-03-17 17:00:29 +02:00
Vyacheslav Egorov
bbeec108a7 Merge branch 'master' into merge 2023-03-17 17:00:25 +02:00
Vyacheslav Egorov
e280064f45 Sync to upstream/release/568 2023-03-17 16:59:30 +02:00