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* Add fkYAML submodule
* Generate slang-ir-inst-defs.h from slang-ir-inst-defs.yaml
* generate ir-inst-defs.h
* neaten things
* neaten inst def parser
* add rapidyaml submodule
* remove fkyaml
* remove fkyaml submodule
* remove use of ir-inst-defs.h
* format and warnings
* fix wasm build
* tidy
* remove rapidyaml
* Extend fiddle to allow custom splices in more places
* Use lua to describe ir insts
* fix
* neaten
* neaten
* neaten
* spelling
* neaten
* comment comment out assert
* merge
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* Remove some cruft/complexity from IR serialization
This is a very simple cleanup to unnecessary code paths and remove some flexibility that isn't actually needed, to hopefully simplify the task of more completely overhauling the approach to IR serialization in a later change.
The concrete feature that gets removed here is a debug-only feature (which thus shouldn't be affecting any users of Slang) that was added long ago in the life of the compiler as we were working to truly separate the front- and back-ends.
At the time there was a lot of code in the compiler back-end that still made use of AST-level data structures, and thus got in the way of our goal to support separate compilation and linking (such that final code generation can only depend on the IR, and not the AST).
The option was used to cause the Slang IR to be serialized out and then read back in as part of compilation, to try and enforce that only the wanted constructs could pass through that bottleneck.
The idea was only ever half implemented, however, because it made use of a secondary implementation path in IR serialization that supported serializing the "raw" source locations (which are heavily dependent on AST-level information, even down to the number of bytes in source files).
This change removes the feature entirely, since it is no longer useful for its intended purpose, and its presence causes there to be entire second code path for source locations in IR serialization that would need to have test coverage if we wanted to be sure it kept working.
In addition, our pre-existing infrastructure for module serialization had various options that have either stopped being useful, or were not really useful at the time they were introduced.
For example: there are no places in the code today where we attempt to serialize out a module without including both the serialized AST and IR.
If that was a feature that we ever supported, the relevant code got removed at some preceding point without breaking any of our tests or (seemingly) upsetting users.
Similarly, the options being passed into writing of a serialized module included both a flag to control whether source locations should be serialized *and* a pointer to the `SourceManager` to use in that case... but it was only ever meaningful to set both, or neither.
The option has been changed to just be the `SourceManager` pointer, and the name has been updated to reflect its very narrow intended use case.
* format code
* fixup
* regenerate command line reference
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Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
Co-authored-by: Yong He <yonghe@outlook.com>
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* Remove support for ad hoc Slang IR compression
This change is part of a larger effort to clean up the approach to
serialization in the Slang compiler. The overall goal is to simplify
and streamline all of the serialization-related logic, so that we are
left with code that is less "clever," and easier to understand for
contributors to the codebase.
Removing support for compression of serialized Slang IR has
benefits that include:
* Reduction in code complexity: consider things like the subtle way
that the `FOURCC`s for compressed chunks were being computed from
the uncompressed versions, and the mental overhead that goes into
understanding that, for anybody who would dare to touch this code.
* Reduction in testing burden: there have been, de facto, two
very different code paths for serialization of the Slang IR, and
it is not clear that the existing test corpus for Slang has
sufficient coverage for both options. By having only a single code
path, every test that performs any amount of IR serialization helps
with test coverage of that one path.
* Opportunity to explore alternatives. This is perhaps a reiteration
of the first point, but once the code is stripped down to the
simplest thing that could possibly work (I am not claiming it has
reached that point yet), it becomes easier for contributors to
understand, and it becomes more tractable for somebody to come along
with an improved approach that performs better (in either
compression ratio or performance) while still being maintainable.
In my own local setup, I found that removing support for Slang IR
compression led to the `slang-core-module-generated.h` file increasing
in size from 46.1MB to 47.4MB. This increase in the `.h` file size
for the core library binary only resulted in a release build of
`slang.dll` increasing from 20.0MB to 20.2MB. Removing the ad hoc
compression support has almost no impact on the size of actual binary
Slang modules *so long* as the additional LZ4 compression step is
being applied to them.
* format code
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Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
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Improve performance when compiling small shaders.
Avoid copying witness table entries that are not getting used during linking.
Avoid copying auto-diff related decorations and derivative functions during linking, if the user modules doesn't use autodiff.
Cache operator overload resolution results on global session, so each new Session doesn't need to repetitively run through overload resolution from scratch.
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* Move switch statement bodies to their own lines
* format
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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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* Add embedded precompiled binary IR ops
Add IR operations to embed precompiled DXIL or SPIR-V blobs
into IR. Adds a BlobLit literal that is mostly identical to
StringLit except for its inability to be displayed, e.g.
in dumped IR. In the future, the blob might be dumped as
hexadecimal, but for now it is summarized as "<binary blob>".
* EmbeddedDXIL and SPIR-V options
The options, '-embed-dxil' and '-embed-spirv' in slangc, will
cause a target dxil or spirv to be compiled and stored in the
translation unit IR when written to a slang-module. Subsequent
changes actually implement the options.
* Per-translation unit DXIL precompilation
When -embed-dxil is specified, perform a precompilation to DXIL of
each TU, linked only with stdlib. Embed the resulting DXIL for
the TU in a IR op. Being part of IR, the precompiled DXIL can be
serialized to disk in a slang-module.
Upon loading slang-modules, the new IR op will be searched for and
the precompiled DXIL blob is saved with the loaded Module. During
linking, if all the Modules have precompiled blobs they will be
sent to the downstream compile commands as libraries instead of
source, skipping the downstream compilation, using DXC only for
linking.
Fixes Issue #4580
* Remove placeholder embedded SPIRV support
Code was added only to sketch out how other precompiled bins
will be supported.
* Remove the rest of the SPIRV placeholder support
* Fix warnings, test error on non-windows
* Remove lib_6_6 hack, add dxil_lib capability
* Allocate blob value from irmodule memarena
* Add null check after memarena allocation
* Restore the request->e2erequest code path for generatewholeprogram
* Update capability handling, move EmbedDXIL enum to end to preserve abi
* Remove lib_6_6 hack
* Move ICompileRequest functions to end
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* Unify Texture types in stdlib into 1 generic type.
* Fixes.
* Fix.
* Fixes.
* Fix reflection.
* Fix binding reflection.
* Add gather intrinsics.
* Fix gather intrinsics.
* Fix texture type toText.
* Fix intrinsic.
* fix cuda intrinsic.
* Fix project files.
* cleanup.
* Fix.
* Fix.
* Fix sampler feedback test.
* Fix getDimension intrinsics.
* Fix spirv sample image intrinsics.
* Fix test.
* Fix GLSL intrinsic.
* Cleanup.
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Co-authored-by: Yong He <yhe@nvidia.com>
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* bump glm to fix c++20 warnings
* bump stb_image to fix c++20 warnings
* Use static_assert for SLANG_COMPILE_TIME_ASSERT
* Remove uses of deprecated is_pod
* Remove bit operations between different enums
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* #include an absolute path didn't work - because paths were taken to always be relative.
* WIP lowerCamel Dictionary.
* WIP more lowerCamel fixes for Dictionary.
* Add/Remove/Clear
* GetValue/Contains
* Fix tabs in dictionary.
Count -> getCount
* Fix fields with caps.
* Key -> key
Value -> value
Use m_ for members where appropriate.
Use lowerCamel in linked list.
* Some small fixes/improvements to Dictionary.
* Kick CI.
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* Clean up `IRReturnVoid`.
* Update gitignore.
Co-authored-by: Yong He <yhe@nvidia.com>
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* #include an absolute path didn't work - because paths were taken to always be relative.
* Compile to a dxil library.
* Added CompileProduct.
* Support handling of ModuleLibrary.
* CacheBehavior -> Cache
* Use CompileProduct for -r references.
* CompileProduct -> Artifact.
* Determining an artifact type on binding.
* Determine binary linkability.
* Added Artifact::exists.
* Added ArtifactKeep.
* Small fixes.
* Small improvements to Artifact.
* Add zip extension.
* Fix some comments.
* Fix multiple adding of PublicDecoration.
Make public output export for DXIL/lib.
Add checking for simpleDecorations such that only added once.
* Use 'whole program' to identify library build.
* Move slang-artifact into compiler-core.
* Split out Keep free functions.
* Artifact::Keep -> ArtifactKeep.
* Handle libraries as artifacts.
* Add -target dxil so test infrastructure knows it needs DXC.
* Linking working in DXC.
* Improve handling around emit for 'export'.
* Add comment around Artifact name.
* Render test working with linking.
* Improvements around Artifact handling.
* Add ArtifactPayloadInfo.
* Small tidy up around artifact.
* Split out code to get info about Artifacts into artifact-info.cpp/.h
* IArtifact interface and IArtifactInstance interface.
* Fix small issues.
* Fix compilation warning issue.
* Fix missing SLANG_OVERRIDE.
* Small fixes to make compilation work on Visual Studio 2022.
* Small improvements to Artifact interface/naming.
* Added Desc with each element in IArchive to allow more flexibility in usage.
* Fix clang warning issue.
* Add ArtifactPayload::Diagnostics
* More discussion around IArtifact usage.
* Re-add slang-artifact.h which was removed during merge.
* Fix typo identified in review.
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* Cleanup refactoring work around the IR builder
We have some long-term goals for the IR that require a more centralized and disciplined set of rules for how IR instructions get created/emitted. I had been working on trying to set things up so that all IR instruction creation goes through a single bottleneck point, but the non-trivial work in that branch was getting drowned out by the sheer volume of cleanup and refactoring changes. This change tries to pull together several of the more important cleanups.
The big pieces are:
* `IRBuilder` and `SharedIRBuilder` now protect their data members and rely on users to initialize them more directly via constructor of an `init()` method. This change affects a *bunch* of sites where `IRBuilder`s were created. I changed use sites to use the constructors whenever possible, and to use `init()` in cases where we had longer-lived builders that needed to be initialized multiple times.
* The insertion location for the `IRBuilder` now uses an encapsulated type called `IRInsertLoc`. This new type can replace what used to be just two `IRInst*` fields in the builder, and also covers some new functionality (if we ever want to take advantage of it). Very little client code cares about this change, but it is still a nice cleanup in terms of making things more explicit.
* The creation of an `IRModule` has been moded *out* of `IRBuilder`, because in practice we `IRBuilder` always wants to be associated with a pre-existing `IRModule` at creation time (via its `SharedIRBuilder`). There is now an `IRModule::create()` operation instead. This required changing the sequencing at many `IRModule` creation sites, since most had been contriving to make an `IRBuilder` first. There were also several cleanups because code had been carelessly using non-reference-counted pointers for `IRModule`s in ways that broke now that `IRModule::create()` always returns a `RefPtr`.
* The core operations to actually allocate memory for IR instructions were moved into `IRModule` (since they interact with the memory pool that the module owns). These *were* called `createEmptyInst()` but have been renamed into `_allocateInst()`. In principle these seem like they should only be needed to be called by the `IRBuilder`, but in practice they are also needed by the IR deserialization logic.
* A few core operations for emitting IR instructions that were associted with `IRBuilder` were moved to actually be methods on `IRBuilder`. First is `_findOrEmitConstant` which is the primary bottleneck for creating simple scalar constant values. Another is `_createInst` (formerly part of the templated `createInstImpl` along with `createInstWithSizeImpl`) which is the main bottleneck for allocation and initialization of any instruction other than a constant (well, the `IRModuleInst` is the other exception...). Finally, there is also `_maybeSetSourceLoc()`, which is obvious to scope inside the `IRBuilder` once it is protecting the source-location info.
Notes:
* The `minSizeInBytes` parameter to `_createInst()` might not actually be needed at all. At this point any `IRInst` subtypes that need data allocated for things other than their operands already get created manually via `_allocateInst` or `_findOrEmitConstant`, so I *think* we could remove that part. I will handle that in a subsequent cleanup if it turns out to be the case.
* There is one IR pass (`slang-ir-string-hash.cpp`) that is using manual `_allocateInst()` instead of going through an `IRBuilder`. It could be easily cleaned up to not do so (and I will probably make that change down the line), but for now I wanted to avoid doing anything that wasn't close to pure refactoring if I could.
* At this point in our design an `IRBuilder` is a very lightweight thing - it basically just owns the insertion location plus a source location to write into instructions. A lot of our code currently treats `IRBuilder`s like they are expensive and/or need to be re-used (which leads to them being used in more mutable/stateful ways). It is quite likely that as we clean up other aspects of the implementation of IR creation/emission we can make `IRBuilder` use feel more lightweight in ways that can streamline and simplify code.
* The next step for this work is to identify the different paths that eventually lead to `_createInst()` being called, and unify them at a single bottleneck operation that can own the decisions around when to create an instruction vs. when to re-use an existing one (rather than those decisions being baked into the various `IRBuilder` subroutines that create instructions of the various subtypes).
* fixup: gcc/clang C++ spec details
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* Add an accessor for IRInst opcode
This main changing is renaming `IRInst::op` over to `IRInst::m_op` and then adds an accessor `IRInst::getOp()` to read it. The rest of the changes are just changing use sites to `getOp` (or to `m_op` in the limited cases where we write to it).
This work is in anticipation of a future change that might need to store an extra bit in the same field as the opcode. It seemed better to do this massive refactoring as a separate PR.
* fixup
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* Fix IR serialization to use 16bits for opcode.
* Undo accidental comment change.
* Use variable length encoding for opcode.
* Fixing issues
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* #include an absolute path didn't work - because paths were taken to always be relative.
* Fix handling of access modifiers inside type definition.
* Fix access problem for AST node.
Make dumping produce a single function with switch, to potentially make available without Dump specific access.
* WIP on serialization design doc.
* Remove project references to previously generated files.
* More docs on serialization design.
* Improve serialization documentation.
Remove unused function from IRSerialReader.
* Small fixes around naming. Remove long comment from slang-serialize.h - as covered in serialization.md
* Remove long comment in slang-serialize.h as covered in serialization.md
* More information about doing replacements on read for AST and problems surrounding.
* Typo fix.
* Spelling fixes.
* Value serialize.
* Value types with inheritence.
* Use value reflection serial conversion for more AST types
* Use automatic serialization on more of AST.
* Get the types via decltype, simplifies what the extractor has to do.
* Update the serialization.md for the value serialization.
* Small doc improvements.
* Update project.
* Remove ImportExternalDecl type
Added addImportSymbol and ImportSymbol type
Fixed bug in container which meant it wouldn't read back AST module
* Because of change of how imports and handled, store objects as SerialPointers.
* First pass symbol lookup from mangled names.
* Cache current module looked up from mangled name.
* Fix SourceLoc bug.
Improve comments.
* Added diagnostic on mangled symbol not being found
* Fix typo.
* WIP serializing stdlib.
* WIP serializing stdlib in.
* Fix problem serializing arrays that hold data that is already serialized.
* Remove clash of names in MagicTypeModifier.
* Make conversion from char to String explicit.
Fix reference count issue with SerialReader.
* Add code to save/load stdlib.
* Use return code to avoid warning - SerialContainerUtil::write(module, options, &stream))
* Make all String numeric ctors explicit.
Added isChar to UnownedStringSlice.
Added operator== for UnownedStringSlice to String to avoid need to convert to String and allocate.
* Add error check to readAllText.
* tabs -> spaces on String.h
* tab -> spaces String.cpp
* Remove msg for StringBuilder, just build inplace for exceptions.
* Check SerialClasses - for name clashes.
Renamed Modifier::name as Modifier::keywordName
* Handling of extensions when deserializing AST - updating the moduleDecl->mapTypeToCandidateExtensions
Co-authored-by: Tim Foley <tim.foley.is@gmail.com>
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* First pass at generalizing serializer.
* Split out ReflectClassInfo
* Use the general ReflectClassInfo
* Fix some typos in debug generalized serialization.
* Add calculation of classIds.
Make distinct addCopy/add on SerialClasses.
* Write up of more generalized serialization
* WIP to transition from ASTSerialReader/Writer etc to generalized SerialReader/Writer and associated types.
* Improvements to SerialExtraObjects.
Keep RefObjects in scope in factory
* Compiles with Serial refactor - doesn't quite work yet.
* First pass serialization appears to work with refector.
* Split out type info for general slang types.
* Split out slang-serialize-misc-type-info.h
* DebugSerialData -> SerialSourecLocData
DebugSerialReader -> SerialSourceLocReader
DebugSerialWriter -> SerialSourceLocWriter
* Remove unused template that only compiles on VS.
* Fix warning around unused function on non-VS.
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* Test if blob is returned.
* Rename serialize files so can be grouped.
* StringRepresentationCache -> SerialStringTable
* Split out SerialStringTable from slang-serialize-ir
* First pass at reorganizing serialization/containers. Remain some issues about debug info.
* Fix bug in calculating sourceloc.
* Improve calcFixSourceLoc
* Make allocations for payload RiffContainer align to at least 8 bytes. This is important for read, if the payload can contain 8 byte aligned data. Note this has no effect on Riff file format alignment rules.
* Improve comments around RiffContainer and alignment.
* Remove SerialStringTable, can just use StringSlicePool instead.
* Typo fix for Clang/Linux.
Co-authored-by: Tim Foley <tfoleyNV@users.noreply.github.com>
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