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The syntax like:
[__AttributeUsage(_AttributeTargets.Var)]
[__AttributeUsage(_AttributeTargets.Param)]
struct DefaultValueAttribute
{
int iParam;
};
is allowed.
For user-defined attribute, we can specify more attribute targets on the
attribute declaration. So one attribute can be used in more than one
situations.
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* Fix fmod behavior targetting GLSL and SPIR-V
The default implementation of fmod was doing "Modulo" operation when
"fmod" in HLSL should do "remainder" operation.
* Fix a mistake in `fmod` GLSL target
When using __intrinsic_asm, the "if" logic wasn't emitted.
"__intrinsic_asm" had to be called from a new function and `fmod` had to
call it.
Alternatively, I am using `operator?()` to workaround.
A similar modification is made to `roundEven()` hoping for a better
performance.
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Fixes #4051
This commit implements SPIR-V target for GLSL functions.
It also fixes a few problesm of GLSL targetting implemention too.
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* Fix texture capabilities
* Remove more __target_intrinsic and fix capability for texture
Fixes #3906
With this commit, following functions will use __target_switch:
- abs
- asdouble
- clamp
- min
- max
- EvaluateAttributeSnapped
- frexp
- log10
- modf
- __glsl_textureXXX
For an unknown reason, I couldn't get "min(int,int)" working with
__target_switch. It causes a test failure in Falcore unit test.
---------
Co-authored-by: ArielG-NV <159081215+ArielG-NV@users.noreply.github.com>
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In current implementation, the some options will be to added
to the target that is only specified by command line "-target".
But if user specifies the target by just using slang API,
e.g. 'spAddCodeGenTarget', those options will be missed.
To fix the problem, we copy the default target's options to
the code-gen target's option set. The default target will only be
useful when there is no target specified in the command line.
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* Fix compile failures when using debug symbol.
* Various fixes.
* Fix intrinsic.
* Fix test.
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* SPIRV: Fix performance issue when handling large arrays.
* Add test for packing.
* Fix clang.
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In SPIRV legalization, a struct wrapper is created around push constants
but is not itself legalized. Putting the struct type into the work
list causes the storage access of the push constant pointer to be
PhysicalStorageBuffer as expected, instead of Function scope that was
produced without the added struct legalization.
Adds a SPIRV test that exercises the fix.
Fixes #3946
Co-authored-by: Yong He <yonghe@outlook.com>
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Currently we only allow variable, struct, and function as the target
for the user-defined attribute, this change adds the function parameter
to the target as well.
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Adds a member dump() to IRInst that can writes the immediate value or IR
inst value to stdout to help with debugging
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CUDA-related targets (#4063)
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* Added diagnostics & built-in type lowering for `[CUDAKernel]` functions
This PR adds
- Diagnostics for non-void return from a cuda kernel entry point
- Diagnostics for using differentiable types in a differentiable cuda kernel entry point
- Logic for converting built-in types (float3, float3x3, etc..) to portable struct types and unpacks the parameter back into a built-in type on the CUDA side. This is because built-in types have different implementations in CUDA & CPP targets, which causes signature mis-match when linking.
* Fix error codes
* Add ability to lower structs and arrays that contain built-in types.
+ Added tests
+ Fix issue where the host-side was not marshalling data to lowered types.
* Update slang-ir-pytorch-cpp-binding.cpp
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Co-authored-by: Yong He <yonghe@outlook.com>
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Fixes #3533
- Add logic to perform aligned memory operations for loading from and storing to composite resources, like vectors within the ByteAddress legalize pass.
- Checks
Added a new test for byte address with/without alignment.
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Co-authored-by: Yong He <yonghe@outlook.com>
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Do not use "&&" to implement the intrinsic kIROp_And,
instead define a 'and' function in stdlib. So it will be
up to us to determine whether we want to use 'short-circuit'
behavior in stdlib.
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Add option -disable-short-circuit to disable short circuit for logic
operators && and ||. Also, disable the short circuit by default in the
stdlib.
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* Metal: Vertex/Fragment builtin and layouts.
* Fix.
* Fix test.
* Emit user semantic on vertex/fragment attributes.
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* Replace __target_intrinsics and __specialize_for_target
Partially resolves #3906
Most but not all __target_intrinsics are replaced with __target_switch.
All __specialize_for_target are replaced with __target_switch.
This change is mostly processed by a temporary c++ program mechanically.
Because the change is already too big, the remaining __target_intrinsics
will be replaced later in another commit.
* Fix indentations
* Add diff.meta.slang
* Revert the change in __sizeOf<>().
"$G0" doesn't seem to work. It needs to be addressed later.
* Revert more functions that use `$G0` keyword
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Do not mange the name of identifiers decorated by "__extern_cpp".
For a slang files that are included by the library module and entry
point module, slang could generated two different mangled names for
the same functions, because the function with a struct parameter will
make the mangled function name contains the file name. Therefore, we
allow using "__extern_cpp" on such struct, such that no file name is
associated in the mangled name.
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* Force Inline if reftype
Fixes #3997.
If we are using a refType, we now ForceInline.
remarks:
1. Modifications were made in slang-ir-glsl-legalize to change how we translate GlobalParam proxy's into GlobalParam.
a. We now handle the senario where a globalParam is used in multiple disjoint blocks (like 2 different functions).
* try to figure out why CI fails but local works
try to inline DispatchMesh, works locally, may fail on CI(?)
* try another fix
* add task tests + don't allow semi-early task-shader inline
Task shader uses DispatchMesh which is a very big 'hack' where we check for the function name and modify the callees in very large ways. This function does inline, but it cannot inline early due to future mangling that this operation requires todo. This is reflected with the `[noRefInline]` modifier. It is a modifier so users may stop mandatory inlines with `__ref` parameter.
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Fixes #4031
Each component of unpackU/Snorm4x8 had to be masked for 8bits.
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* Keep const-ness in generic functions
Closes #3834
The issue was that "const" variables inside of generic functions became
non-const variables. This issue prevented some of GLSL texture
functions from being called inside of generic functions.
When `propagateConstExpr()` iterates the global functions, the generic
functions had to be handled little differently. This commit allows the
iteration to happen for the generic functions.
* Adding an explantion of the test as a comment
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* Support derivative functions in compute & capabilities adjustments
fixes #4000
PR implements derivative functions in compute shaders properly so we have the functionality for SPIR-V & GLSL. Tests reflect fragment and compute paths.
PR also adjusts capabilities to correct wrong SPRI-V target capabilities for when using textures.
Remarks:
1. __requireComputeDerivative(); is a intrinsic_op and not modifier since inlining will destroy the modifier.
2. Derivative mode is tied to an entry point decoration `[DerivativeGroupQuad]`/`[DerivativeGroupLinear]` or GLSL syntax ``derivative_group_linearNV`. Default is to set the mode to `[DerivativeGroupQuad]`
* remove -emit-spirv-directly
* fixes
1. fix minor issue fwidth change where I returned the wrong type
2. fix issue where glslang{glsl->spirv} is wrong, so we don't run that test and just run the glsl test & direct spir-v test for intrinsic-texture.slang
* adjust as per review and refine code
1. add test to ensure multi-diverging-in-logic entry points work -- 2 functions which may cause computeDerivatives + 1 that uses, 1 that does not.
2. naming
3. use entry point ref graph for c-like-targets
4. reordered some code to util's and removed `static linline` since that was just for ease of coding on my end (should not have been pushed).
* Grammer
* split up source file + issolate GLSL emit path change.
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Co-authored-by: Yong He <yonghe@outlook.com>
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* Fix macos CI.
* Fix.
* Fix.
* Fix.
* Fix clang warnings.
* Fix more warnings.
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Adding "override" keywords for member functions whereever they need.
The compiler warning was visible on CI build but not visible on local
visual studio build.
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Resolves #3980
Based on the operator precedence, Slang may omits the parentheses if they
are not needed. DXC prints warnings for such cases and some applications
may treat the warnings as errors.
This commit emits parentheses to avoid the DXC warning even when they
are not needed.
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Fix the issue (#3999).
For a function is defined as extern and export at the same time, don't
report error, we can use the 'export' function to overload the 'extern'
function.
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* Switch to direct-to-spirv backend as default.
* Fix slang-test.
* Fix.
* Fix.
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* Fix a bug in fwd-diff for cross product
* Also add a test for the reverse-mode AD
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Co-authored-by: Yong He <yonghe@outlook.com>
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* ForceInline ByteAddressBuffer operations in stdlib
* fixup
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* bit_cast & reinterpret warning if src->dst type not equally sized.
bit_cast & reinterpret warning if src->dst type not equally sized.
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Co-authored-by: Yong He <yonghe@outlook.com>
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* Add metal downstream compiler + metallib target.
* Add more comments.
* Add missing override.
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Resovles an issue #3935
Slang had to fold the generic arguments after specialization.
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Co-authored-by: ArielG-NV <159081215+ArielG-NV@users.noreply.github.com>
Co-authored-by: Yong He <yonghe@outlook.com>
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`-ignore-capabilities` flag allows ignoring capability incompatibilities/discontinuity errors/warnings. We still process capabilities (needed for stdlib).
Added to capability tests to ensure everything is working as intended. More will be added in the full stdlib capabilities implementation.
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Fixes #387676* ForceInline SampleLevel to allow decorations to apply
* explictly add all the SPIRVAsmOperand Insts in non-differentiable list, which might get inadvertently processed when these functions are inlined into the main shader
* Support NonUniformResourceIndex for SPIR-V target
Fixes #3876
* add a new IR instruction for NonUniformResourceIndex
* slang ir emitter for nonuniform resource index
* update the hlsl meta slang
* Add test cases for NonUniformResourceIndex access for buffers and textures, with/without cast, nested access etc.
* add default c-like emitter for nonuniformresourceinfo
* added hlsl emitter
* added glsl emitter
* requisites for spirv enabling
- new decorator for nonuniformresourceindex
- emitter for nonuniformresourceindex signature change
* add hasResourceType checker
* add rwStructBuffType in resourcetype checker
* add a case for nonuniformres in emitDecorations
* DO NOT COMMIT: This change adds special handling for RWStructBuf within the isResourceType function, if it is a pointer to this resource, return true to make it work with nonuniformres test
* spirv emitter for decorations - update the emitLocalInst to perform decorations at the end
* added main spirv emitter code
* slang emit spirv bugfix
* hacky way of supporting Call Inst
* move code to cleanup nonuniform inst into helper function
* remove stale codefrom test
* add spirv decoration for nonuniform
* update test to remove global variables
* update coherent-2 test
* update comment for special handling
* update the spirv legalize to handle nested nonuniforms
improved logic that handles call ops, rwstructbuf, nested nonuniforms
etc.
* update nonuniform-array-of-tex test
* missed removing nonuniform inst causing duplicate decorations
* add glsl and hlsl variants of nonuniform tests
* repurpose the hasResource function into something specific for nonuniform inst decoration helper
* clean up comments and code around spirv-legalization to emit nonuniform inst by recursively looking into the inst
* use the helper canDecorateNonUniformInst to convert `nonUniformResourceInfo` inst to decoration
* converted compute/unbounded-array-of-array cross compile test into a simple check test
* update contains Resource helper function to be more generic
* clean up the case for opcall handling with nonuniform resource inst
* update ptr to struct buffer check to be more explicit and rename the function to check for ptr to resource type
* update comments and fix the test for coherent
* fix typos
* update logic on spirv legalize to delete dead instructions - for some reason this doesn't automatically happen
* add comments to declarations
* add NonuniformResourceIndex to the non-differential inst list
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* Metal: rewrite global variables as explicit context.
* Small tweaks.
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Fixes #3969
NonUniformResourceInfo instruction is applied as a Decoration on the backing resource. With the following shader, this is applied to the Function Call.
res.rgb *= g_bindless_Texture2D [NonUniformResourceIndex (val.x)].SampleLevel(g_Sampler, v, 0.0).rgb;
as shown below:
{145371} let %1826 : Int = nonUniformResourceIndex(%1789)
{177146} let %1828 : Vec(Float, 4 : Int) = call %SampleLevel(%1826, %sampler, %1827, 0 : Float)
This patch ForceInlines SampleLevel intrinsic function call so that the Decoration is correctly applied on the resource.
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* Support combined texture sampler when targeting HLSL.
* Fix glsl intrinsics.
* Update source/slang/slang-ir-lower-combined-texture-sampler.cpp
Co-authored-by: ArielG-NV <159081215+ArielG-NV@users.noreply.github.com>
* Update source/slang/slang-ir-lower-combined-texture-sampler.cpp
Co-authored-by: ArielG-NV <159081215+ArielG-NV@users.noreply.github.com>
* Update source/slang/slang-ir-lower-combined-texture-sampler.cpp
Co-authored-by: ArielG-NV <159081215+ArielG-NV@users.noreply.github.com>
* Fix.,
* Enhance test.
* Remove unused field.
* Fix indentation
---------
Co-authored-by: ArielG-NV <159081215+ArielG-NV@users.noreply.github.com>
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This change forcibly inlines the InterlockedAdd functions when using byteAddress buffer.
The IR generated when using nonUniformResourceInst on RWByteAddressBuffer:
buffer[NonUniformResourceIndex(uint(0))].InterlockedAdd(0, 1);
follows the sequence of a call into an index lookup that is wrapped by a nonuniformResourceIndex:
%ld = nonUniformResourceIndex(0)
Call RWStructBufferInterlockedAdd(%ld, 0, 1)
This prevents NonUniformResource decoration of the buffer because it is wrapped by the function call to
InterlockedAdd, that further expands to:
%gep = getElement(%buffer, 0)
SpirvAsmInst(..., rwStructuredBufferGEP(%gep, 0), ...)
By Force-Inlining the atomic functions, the buffer / resource is made visible to the nonUniformResourceIndex inst,
allowing the decoration.
Identified while debugging tests/spirv/coherent-2.slang
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* Init expressions for struct members
Following commit handles init expressions of struct's.
The general implementation follows C++ init expression rules for classes & inherited classes.
The logic was implemented after type resolution (`SemanticsDeclAttributesVisitor`):
1. Create a default constructor if missing.
2. Check all member variables (`this` and `super`) for if a member has an init expression, continue to *3* if found.
3. For each constructor, insert a member variable's init expression at the beginning of a constructor. This is to follow how C++ does construction of objects.
Some important notes about implementation:
* We must handle the scenario that there is inheritance. To handle the inheritance information processing `findLevelsOfInheritance` was created.
* If a user manually sets overload rank's of constructor expression's we have no way to assume new default constructor overload ranks.
* address feedback
- moved all scope bound variables into if statment initializers
- added indent
- changed logic for overloadRank to be centered around positive numbers rather than negative
* Inheritance fixes universally & for struct field init
1. reimplemented struct field logic
2. implemented inheritance through calling a "super->init()" inisde a constructor for each "this".
3. implemented support for multi level inheritance (4+) and accessing members without a crash.
* add a way to ignore Forward declared constructors.
* a test and fix for a falcor failiure
the following case was not handled: creating an default Ctor due to a non L-Value struct field. Having an empty Ctor causes a warning.
* remove texture/sampler from test since it will break glsl
* get inheritance info using existing lookup logic
modified Facet lookups to store relative depth rather than arbitrary ::Self or' ::Direct for inheritance (which was 'wong' since depth 2 is not Direct, but was considered a Direct inheritance)
* cleanup unused
* cleanup unused functions and whitespace
* fix compile warning
* clean up, reorder, addressed language server fail
changed logic to safeguard bad code --> no longer breaks language server if code is incomplete.
remove the "semi-ordering" logic because caused a crash (and this code does nothing functionally, just thought it would be nice to add if '0 cost').
Remove rank setting for constructors, in place use an addition to the overload system: "this" expressions have calling priority over "super" expressions.
* undo all inheritance depth checks & code added to the inheritance checking algorithm
Reorder default ctor creation and auto-generation of constructor body.
* Handle same struct types during overload resolution
Changed overload resolution logic to properly handle same struct types; added test to check for multi-param same type function overload.
* remove unused ast object
Used unused object in an incorrect way. This caused the compiler to not flag a warning.
* extension support for default constructors
specialization is not supported with default constructors yet.
* fix bugs
Fix bug in override/overload logic with type comparisons.
used wrong type for ctor list construction
Specialization has not been added yet
* disallow default ctor inside extension
* adjust comment, add new tests
* add explicit types to invoke, use faster default ctor lookup.
* adjust syntax & naming as recomended
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