| Age | Commit message (Collapse) | Author |
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* Defer immutable buffer loads when emitting spirv.
* Fix.
* Fix.
* Fix.
* Fix tests.
* Fix test.
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* Misc language server improvements.
* Fix.
* Fix decl path printing for existential lookup.
* More existential decl path fix.
* Polish.
* Fix test.
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* Add MLP training examples.
* Formatting fix.
* Fix.
* Improve documentation on coopvector.
* Improve doc.
* Update doc.
* Fix typo.
* Cleanup shader.
* Cleanup.
* Fix test.
* Fix type check recursion.
* Fix.
* Fix.
* Fix override check.
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* Parse optional witness syntax
* Allow failing optional constraint
* Make `is` work with optional constraint
* Allow using optional constraint in checked if statements
* Fix tests
* Make it work with structs
* Fix MSVC build error
* Disallow using `as` with optional constraints
* Update test to match split is/as errors
* Add tests
* Fix uninitialized variables in tests
* Add tests of incorrect uses & fix related bugs
* Mention optional constraints in docs
* format code
* Fix type unification with NoneWitness
* Fix formatting
---------
Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
Co-authored-by: Nathan V. Morrical <natemorrical@gmail.com>
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Close #6176.
If the struct has a `no_diff` member, it should not be its Differential
type. We miss this check.
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* Fix issue of missing scope for 'Differential' type
When we synthesize the struct decl for Differential type, we should
add the ownedScope for this decl, because the scope is used in lots
of locations in the following synthesized processes, e.g. constructor
synthesize. And that could cause surprising behavior, e.g. the 'this'
expression could access the members of parent struct decl.
Fix the issue by adding the scope. The containerDecl will be the
Differential struct decl itself, parent scope will be the parent struct.
* Add a unit-test
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Most of what this change does is straightforward: take all the places in the code that used to operate directly on `ContainerDecl::members` and related fields, and instead have them call into a smaller set of accessor methods defined on `ContainerDecl`.
The primary motivation for making this change is that in order to implement on-demand loading of members from serialized AST modules, we need a way to identify and intercept the "demand" for those members.
On-demand loading benefits from having all accesses to the members of a `ContainerDecl` be as narrow as possible.
If a part of the code only need a member at a specific index, it should say so.
If it only needs access to members with a specific name, or a given subclass of `Decl`, then it should say so.
A secondary motivation for this change is that there have recently been several changes that added complexity and special cases by introducing code that operated on (and *mutated*) the member list of a container decl in ways that the existing code had never done before.
Any code that mutates the member list of a `ContainerDecl` needs to be sure to not disrupt the invariants that the lookup acceleration structures currently rely on.
One of the recent changes added a declaration-to-index map to the set of acceleration structures (with different validation/invalidation behavior than the others...) while other recent changes would remove or insert declarations in ways that could change the indices of other declarations in the same container.
It is not clear if any of these pieces of code were aware of the others, and the invariants that might be expected or broken along the way.
This change bottlenecks the vast majority of accesses to the members of a `ContainerDecl` through the following operations:
* Getting a `List` of all of the direct member declarations of a container
* Get the number of direct member declarations, and accessing them by index.
* Looking up the list of direct member declarations with a given name.
* Adding a new direct member declaration to the end of the list.
Some other operations are layered on top of those (e.g., getting a list of all the direct member declarations of a given C++ class).
These layered operations are still centralized on the `ContainerDecl`, with the intention that we *can* change them to be non-layered implementations if we ever need to for performance (e.g., by building a lookup structure for finding member declarations by their type).
The exceptional cases of access/mutation on the direct members of a `ContainerDecl` have also been encapsulated, but rather than expose what would risk appearing like general-purpose accessors (e.g., `removeDecl(d)`, `setDecl(index)`, etc.), these operations have been explicitly named after the specific use case that they serve in the codebase today, to discourage others from using them for more kinds of operations we'd rather not support.
These operations have also been given parameter signatures that match their use cases, to make it so that even somebody determined to abuse them would have to invent suitable arguments out of thin air.
In the case of the declaration-to-index mapping, this change eliminates that acceleration structure, in favor or slightly more complicated (and possibly inefficient, yes) code at the use site.
Over time, it would be good to closely scrutinize each of the use cases that requires more complicated interaction with the members of a `ContainerDecl`, to see whether any of them can be reframed in terms of the more basic operations, or if there is some clean abstraction we can introduce to make operations that mutate the member list feel like... hacky.
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Added error checking to reject interface types as the right-hand side
of is and as operators. Enhanced semantic analysis with new diagnostic
30301 and comprehensive test coverage.
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* Add legalization for 0-sized arrays.
* Allow 0-sized arrays in the front-end.
* More tests.
* Add `Conditional<T, hasValue>` type to core module.
* Update toc.
* Fix wording.
* Update test.
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* Fix SPIRV specialization constant with floating-point operations
* Improve test
* WIP
* Restrict `OpSpecConstantOp` allowed operations based on SPIRV specifications
* Fix typo on floating type check
* Emit error on float to int spec cosnt int val casts
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* Language version + tuple syntax.
* Fix compile error.
* regenerate documentation Table of Contents
* Fix.
* regenerate command line reference
* Fix.
* Fix.
* Fix more test failures.
* revert empty line change,
* Retrigger CI
* #version->#lang
* Update source/core/slang-type-text-util.cpp
Co-authored-by: ArielG-NV <159081215+ArielG-NV@users.noreply.github.com>
* Remove comments.
* Fix parsing logic.
* Fix parser.
* Fix parser.
* update test comment
* Update options.
* regenerate documentation Table of Contents
* regenerate command line reference
---------
Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
Co-authored-by: ArielG-NV <159081215+ArielG-NV@users.noreply.github.com>
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* Implement throw statement
It already existed in the IR, so only parsing, checking and lowering was
missing.
* Initial catch implementation
Likely very broken.
* Error out when catch() isn't last in scope
* Prevent accessing variables from scope preceding catch
As those may actually not be available at that point.
* Add IError and use it in Result type lowering
* Add diagnostic tests
* Allow caught throws in non-throw functions
* Fix catch propagating between functions & SPIR-V merge issue
* Add test for non-trivial error types
* Fix MSVC build
* Fix invalid value type from Result lowering
* Also lower error handling in templates
* Lower result types only after specialization
* Attempt to disambiguate error enums by witness table
* Revert matching by witness, types should be distinct too
* Don't assert valueField when getting Result's error value
It may not exist if the function returns void, but getting the error
value is still legitimate.
* Update tests for new error numbers & get rid of expected.txt
* Change catch lowering to resemble breaking a loop
... To make SPIR-V happy.
* Fix dead catch blocks and invalid cached dominator tree
* More SPIR-V adjustment
* Lower catch as two nested loops
* Add defer interaction test and revert broken defer changes
* Fix enum type when throwing literals
* Cleanup and bikeshedding
* Document error handling mechanism
* Fix table of contents
* Use boolean tag in Result<T, E>
* Use anyValue storage for Result<T,E>
* Remove IError
* Fix formatting
* Eradicate success values from docs and tests
* Use parseModernParamDecl for catch parameter
* Implement do-catch syntax
* Implement catch-all
* Fix formatting
* Fix marshalling native calls that throw
---------
Co-authored-by: Yong He <yonghe@outlook.com>
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(#7213)
* Make sizeof(generic) work as compile-time constant
* format code
---------
Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
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* Do not print errors in _coerce when "JustTrying".
While figuring out which generic-overload works best, `_coerce()` is
printing errors and Slang compilation terminates prematurely.
When `TryCheckGenericOverloadCandidateTypes()` is calling `_coerce()` in
"JustTrying" mode, the error messages should be snoozed.
The following logic shows the intention of how to silence the error
messages, but the chain of `sink` was broken in the middle and
`_coerce()` was using `getSink()` from the SemanticVisitor.
val = ExtractGenericArgInteger(
arg,
getType(m_astBuilder, valParamRef),
context.mode == OverloadResolveContext::Mode::JustTrying ? nullptr : getSink());
* Use tempSink when available.
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Close #6859
Goal of this PR
We want to support an array whose size can be specialization constant for shared/global variable e.g.
layout (constant_id = 0) const uint BLOCK_SIZE = 64;
shared float buf_a[(BLOCK_SIZE + 5) * 4];
Overview of the solution:
During IndexExpr check, we will loose the restriction to allow SpecConst passing, but the size parameter will not be a constant value because it cannot be folded into a constant, so we will make it follow the same logic as generic parameter value, and the size will be represented by FuncCallIntVal/PolynomialIntVal/DeclRefIntVal.
During IR lowering, we will detect whether there is spec constant in the IntVal, and wrap the IRInst with a SpecConstRateType, and propagate the type though the lowering logic, such that the IntVal representing the array size will have SpecConstRateType.
During spirv emit stage, if we detect that a IRInst has SpecConstRateType, we will emit it as SpecConstantOp.
We have to implement new logic to emit OpSpecConstantOp, the existing emit logic doesn't support emitting OpSpecConstantOp, especially this op can embed arithmetic operation at global scope, where we can only emit arithmetic instruct at local. But there are only few instructs we need to support.
Overview of the solution:
This PR doesn't support generic, and we will create a separate PR to extend that, tracked in #6840.
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* Add support for Array Sizes using Generic arguments to be initialized via {}
Fixes one subissue of #6138
This change adds support for initializing Arrays with Generic size arguments via {}
and adds a test to verify it.
The change checks for an array whose size parameter is a GenericParamIntVal
and since the size of such an array will be known at link time, is not considered
as a case of the size not being known statically.
* Add support for Array Sizes using Generic arguments to be initialized via {}
Fixes one subissue of #6138.
Fixes the issue #6958.
This change adds support for initializing Arrays with Generic size arguments via {}
and adds a test to verify it.
Support is added by means of adding a new AST Expr node that lowers down to the IR MakeArrayFromElement
and the emission of a diagnostic is replaced with the creation of this new AST Expr node.
* format code
---------
Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com>
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* Initial support for immutable lambda expressions.
* More diagnostics, and langauge server fix.
* Language server fix.
* Fix bug identified in review.
* Add expected result.
* Update expected result.
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generic expressions) (#6787)
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* A new approach to AST serialization
This change completely overhauls the way that AST nodes are being serialized, and the offline source-code generation steps that enable that serialization.
In practice, this ends up being a complete overhaul of the way that *modules* are being serialized (not just the AST part), although things like the serialization format for the Slang IR and for source locations are not affected.
The rest of this commit message is broken down in to sections, in an attempt to help guide anybody looking at the code in how to make sense of all the changes.
The Old C++ Extractor
---------------------
AST serialization used to be driven by information scraped using the `slang-cpp-extractor` tool, which did an ad hoc parse of the C++ declarations of the AST node types and then generated a set of "X macros" that could be for macro-based code generation within the rest of the compiler.
While the existing approach was functional, it wasn't easy to understand or maintain, and it has been getting in the way of forward progress on other features we'd like to work on in the language and compiler.
This change removes the `slang-cpp-extractor` tool entirely.
Marking Up the AST Declarations
-------------------------------
The most notable change that contributors to the compiler may notice is the large number of invocations of a macro `FIDDLE()` on the declarations of the AST node types.
The basic idea is that only declarations (namespaces, types, fields) that are preceded by `FIDDLE()` are visible to the code generator tool.
So if somebody is working with the AST and wondering why a new node type isn't working, or why a field they added isn't being serialized correctly, it is probably because they need to add `FIDDLE()` in front of it.
Generating the Boilerplate Code
-------------------------------
The file `slang-ast-boilerplate.cpp` provides a good example of how the information extracted from the marked-up AST declarations gets used.
In that file, the `FIDDLE TEMPLATE` construct is used to generate type information for each of the AST node types.
Similar logic is used in `slang-ast-forward-declarations.h` to generate the declaration of the `ASTNodeType` enumeration, and forward-declare all the AST node classes.
For many parts of the code, simply including that file replaces the need for the old `slang-generated-*.h` files.
Replacing Visitors and Related Logic
------------------------------------
The old visitor types for the AST used the macros that were generated by `slang-cpp-extractor`, so something new was needed to replace them.
The same goes for the `SLANG_AST_NODE_VIRTUAL_CALL` macros.
The core of the solution implemented here is in `slang-ast-dispatch.h`.
Given a "dispatchable" AST node type (say, `Expr`), a call like:
```
ASTNodeDispatcher<Expr,R>(expr, [&](auto e) { return doSomething(e); })
```
is an expression of type `R`, which does the equivalent of something like:
```
switch(expr->getTag())
{
case ASTNodeType::VarExpr: return doSomething(static_cast<VarExpr*>(expr));
// ...
}
```
The `SLANG_AST_NODE_VIRTUAL_CALL` macro is now implemented in terms of `ASTNodeDispatcher`.
The implementation of the visitor types is more involved.
The code in this change retains some of the macro names from the original version, just to try and make the parallels more clear.
The visitor types are all implemented on top of the `ASTNodeDispatcher` approach, and use `FIDDLE TEMPLATE` to generate all the boilerplate `visit*()` method declarations.
Refactoring of `Linkage` Module Loading
---------------------------------------
Needing to revisit all the places where modules get deserialized made it clear that there is a lot of complexity and apparent duplication in the core routines on the `Linkage` that get used for loading modules.
This change tries to clean up some of that logic, but it is worth noting that there are two legacy features that get in the way of making things as clean as they should be:
* The `LoadedModuleDictionary` type that gets passed around a lot exists entirely to handle the corner case where somebody uses the Slang API to perform a compilation with multiple `TranslationUnitRequest`s in the same `FrontEndCompileRequest`, and one of the translation units `import`s the module defined by another of the translation units.
* There are a lot of special-case behaviors and routines entirely there to support the `ModuleLibrary` feature, although that feature should be considered deprecated (or at least subject to getting entirely re-designed down the line).
The basic idea of the cleanup is that all of the (non-deprecated) ways load a module from a serialized binary, or compile one from source should now bottleneck through `loadModuleImpl`, which then bifurcates into `loadSourceModuleImpl` for the compilation case and `loadBinaryModuleImpl` for the deserialization case.
High-Level Serialization Approach
---------------------------------
The old serialization logic used the [RIFF](https://en.wikipedia.org/wiki/Resource_Interchange_File_Format) format to encode the high-level structure of things, and this change retains that usage (and actually doubles down on the RIFF usage).
The old serialization system relied on the idea that for any given type `Foo` that wants to support serialization, there should be something like a `SerialFooData` type in C++, that can represent the state of a `Foo`, and then the actual serialization applied to that `SerialFooData`. This means that in most cases there are four pieces of code written:
* During serialization:
* Copying the data of a `Foo` in memory over to a `SerialFooData` in memory
* Writing the state of a `SerialFooData` into the serialized data stream
* During deserialization:
* Reading the state of a `SerialFooData` from a serialized data stream
* Copying the data of the `SerialFooData` in memory over to a `Foo`
The new logic gets rid of the intermediate `SerialFooData`.
In the serialization direction, we take a `Foo` and write it to the `RIFFContainer` directly, or using some other utilities layered on top of it.
In the deserialization direction, we have additional flexibility. Given a `RIFFContainer::Chunk*` that represents a serialized `Foo`, we often navigate through the in-memory representation of the RIFF data to get to the parts of the serialized value that we actually want/need, without needing to deserialize the entire `Foo`.
To support this kind of operation, this change introduces a few helper types like `ContainerChunkRef` an `ModuleChunkRef`, that are little more than typed wrappers around a `RIFFContainer::Chunk*`.
The Module "Container" Part
---------------------------
A serialized `Module` is encoded as a RIFF chunk, using logic in `slang-serialize-container.cpp` - both before and after this change.
This change reorganizes a lot of the code in that file, to account for the way that eliminating the intermediate `SerialContainerData` type streamlines the overall task of writing out the parts of the module.
In the deserialization logic... there isn't really much to do in `slang-serialize-container.cpp`. Most of the logic in `slang.cpp` and `slang-module-library.cpp` that pertains to deserializing modules uses the `ModuleChunkRef`-based approach, and simply extracts the pieces of the serialized module that it needs.
The Actual Serialization of the AST
-----------------------------------
The actual AST serialization logic is in `slang-serialize-ast.cpp`.
The basic approach in both the writing and reading directions is:
* Use the `FIDDLE TEMPLATE` system to generate a set of functions, one for each AST node type, that recursively invoke the read/write logic on each field of that node (after recursively invoking the case for its direct superclass)
* Use the `ASTNodeDispatcher` system to dispatch out to those functions whene reading or writing anything derived from `NodeBase`
* For now, handle all types *not* derived from `NodeBase` by hand.
There's a lot of room for improvement around that last item: it should be just as easy to generate the serialization and deserialization logic for other types that don't inherit from `NodeBase`, but the current change tries to err on the side of making the logic as explicit and simplistic as possible, rather than trying to get too clever too soon.
The actual serialization *format* used for the AST is almost comically simplistic: the code uses hierarchical RIFF chunks to emulate a JSON-like structure. This is a very wasteful representation (e.g., a `bool` or a null pointer each take up *8 bytes*), but the goal for now is to start with the simplest thing that could possibly work, and only add more cleverness once we are sure it won't get in the way of important future improvements (like lazy/on-demand deserialization or IR and AST, to improve compiler startup times).
The files `slang-serialize.{h,cpp}` have been co-opted to define a new pair of types `Encoder` and `Decoder` that are used for a more-or-less stream-oriented way or reading or writing RIFF chunks for the JSON-like structure.
Almost everything related to the actual AST serialization could do with a cleanup pass, and some time spent on picking good/better names for everything.
Smaller Stuff
-------------
* Cleaned up a lot of code that was using bare `ASTNodeType` or the extractor's `ReflectClassInfo` type to consistently use `SyntaxClass`.
* Fixed an apparent bug in how the destination-driven code genarator was handling `TryExpr`s
* Fixed an apparent bug in how the GLSL legalization pass was handling translation of certain `SV_*` semantics.
* format code
* fixup: template errors caught by non-VS compilers
* format code
* fixup: more template errors
* fixup: more stuff VS didn't catch
* fixup: it's amazing VS doesn't catch these...
* fixup: yet more template stuff VS ignores
* fixup: more VS template nonsense
* fixup: unreachable return macro usage
* fixup: more unreacable returns
* fixup: unused parameter
* fixup: strict aliasing
* fixup: allow missing entry point list chunk
* fixup: wasm build script
* fixup: AST changes since this PR was created
---------
Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
Co-authored-by: Yong He <yonghe@outlook.com>
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* Fix lowering of associated types in generic interfaces.
* Update diff-assoctype-generic-interface.slang
* Fix-up lowering of differentiable witnesses for implicit ops
* Update slang-ir-autodiff-transcriber-base.cpp
* Fix issue with differentiating type-packs
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* Allow `.member` syntax on vector and scalars.
* Fix.
* fix.
* Fix.
* update comment.
* Fix tests.
* Fix warning.
* Add more tests.
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* Fix overload resolution for `MemberExp`r's base expression
Also fixed an issue where `ModuleDeclarationDecl` priority during overload resolution was inverted.
* Made the fix slightly simpler..
* Update overload-resolve.slang
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* Fix zero size array handling in slangc
Fixes #2890
1. Fix zero size array handling in slangc
2. Add new zero size array diagnostic test.
* format code
* fix review comments
---------
Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com>
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* Use two-stage parsing to disambiguate generic app and comparison.
* Typo fix.
* Update doc.
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* SP004: implement initialize list translation to ctor
- We synthesize a member-wise constructor for each struct follow
the rules described in SP004.
- Add logic to translate the initialize list to constructor invoke
- Add cuda-host decoration for the synthesized constructor
- Remove the default constructor when we have a valid member init constructor
- Disable -zero-initialize option, will re-implement it in followup (#6109).
- Fix the overload lookup issue
When creating invoke expression for ctor, we need to call
ResolveInvoke() to find us the best candidates, however
the existing lookup logic could find us the base constructor
for child struct, we should eliminate this case by providing
the LookupOptions::IgnoreInheritance to lookup, this requires
us to create a subcontext on SemanticsVisitor to indicate that
we only want to use this option on looking the constructor.
- Do not implicit initialize a struct that doesn't have explicit default
constructor.
Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
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* Fix cyclic lookups with UnscopedEnums
* Add test with multiple unscoped enums with explicit types
---------
Co-authored-by: Yong He <yonghe@outlook.com>
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* Initial implementation of `ResourcePtr<T>`.
* Update docs
* Fix build error.
* Add more discussion.
* Update documentation.
* Update TOC.
* Fix.
* Fix.
* Add test case for custom `getResourceFromBindlessHandle`.
* Add namehint to generated descriptor heap param.
* Fix.
* Fix.
* format code
* Rename to `DescriptorHandle`, and add `T.Handle` alias.
* Fix compiler error.
* Fix.
* Fix build.
* Renames.
* Fix documentation.
* Documentation fix.
---------
Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
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* Add executable test on matrix-typed vertex input.
* Fix emit logic of matrix layout qualifier.
* Pass fragment shader varying input by constref to allow EvaluateAttributeAtCentroid etc. to be implemented correctly.
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* Fix parsing GLSL SSBO arrays / bindless descriptors
* Clean up SSBO array parsing
* Fix mutable SSBO arrays not being detected as such
* Allow sized SSBO arrays
* format code
---------
Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
Co-authored-by: Yong He <yonghe@outlook.com>
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* Fix pointer offset logic and add executable tests.
* Fix.
* Fix test.
* Add existential ptr test.
* Allow pointers to existential values.
* Fix.
* Fix.
---------
Co-authored-by: Ellie Hermaszewska <ellieh@nvidia.com>
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* Embed core module in wasm build.
* format code
* add uintptr_t case.
---------
Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
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* Move switch statement bodies to their own lines
* format
---------
Co-authored-by: Yong He <yonghe@outlook.com>
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* format
* Minor test fixes
* enable checking cpp format in ci
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* Support constant folding for static array access.
* Fix test.
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* Initial work to support custom derivatives for member methods of differentiable types
* Support custom derivatives of member functions of differentiable types
- Also adds support for declaring custom derivatives via extensions.
* Fix
* move defs
* Update slang-check-decl.cpp
* Create diff-member-func-custom-derivative.slang.expected.txt
* Update slang-check-decl.cpp
* Fix for static custom derivatives
* Fix diagnostics for [PreferRecompute]
* Add backward custom derivative tests
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* Correct typo in parser
* SizeOfLineExprs have type int
Fixes https://github.com/shader-slang/slang/issues/5191
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* Initial Atomic<T> type implementation.
* Update design doc.
* Fix.
* Add test.
* Fixes and add tests.
* Fix WGSL.
* Fix glsl.
* Fix metal.
* experiemnt with github metal.
* experiment github metal 2
* github metal experiment 3
* experiment with github metal 4.
* experiment with metal 5.
* experiment 7.
* metal experiment 8.
* Fix metal tests.
---------
Co-authored-by: Yong He <yhe@nvidia.com>
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* initial diff-ref-type interface
* Initial support for `IDifferentiablePtrType`
* Fix unused vars
* More tests + fix switch case fallthrough.
* Update slang-ir-autodiff.cpp
* Update diff-ptr-type-loop.slang
* Add optimization to allow more complex pair types
* Update slang-ir-autodiff-primal-hoist.cpp
* Update diff-ptr-type-loop.slang
* Update slang-ir-autodiff-primal-hoist.cpp
* More fixes to address reviews
* Update slang-check-expr.cpp
* Optimizations + rename `differentiableRefInterfaceType` -> `differentiablePtrInterfaceType`
* Move pair logic to ir-builder, unify the type dictionaries.
---------
Co-authored-by: Yong He <yonghe@outlook.com>
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* Add `IRWArray` interface, and make StructuredBuffer conform to them.
* Update user guide.
* Fix.
* Fixes.
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* Preserve name in DeclRefExpr for correct highlighitng of `This`.
* Fix test.
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