slang.git/source/slang/slang-ir-specialize-resources.cpp, branch master

Rename some symbols related to pointers types (#8592)

2025-10-03T04:48:11+00:00

Note that while this change touched a large numer of files, there are no changes to functionality being made here. The only things being done are renaming various symbols and, in a few cases, updating or adding comments for consistency with the new names. The core of the naming changes are: * Most things named to refer to `OutType` (e.g., `IROutType`, `IRBuilder::getOutType()`, etc.) have been consistently renamed to refer to `OutParamType`, to emphasize that the relevant AST/IR node types are only intended for use to represent `out` parameters. * The same change as described above for `OutType` is also made for `RefType`, which becomes `RefParamType` in most cases. One mess that this exposes is the way that the `ExplicitRef` type in the core module currently lowers to `IRRefParamType`. This change sticks to the rule of not making functional changes, so that mess is left as-is for now. * Names referring to `InOutType` have been changed to instead refer to `BorrowInOutType`. The intention with this naming change is to emphasize that the Slang rules for `inout` are semantically those of a borrow (or at least our interpretation of what a borrow means). * Names referring to `ConstRefType` have been changed to instead refer to `BorrowInType`. This change starts work on clarifying that the existing `__constref` modifier was never intended to be a read-only analogue of `__ref`, and instead is the input-only analogue of `inout`. * The `ParameterDirection` enum type has been changed to `ParamPassingMode`, to reflect the fact that the concept of "direction" fails to capture what is actually being encoded, particularly once we have modes beyond simple `in`/`out`/`inout`. While this change does not alter behavior in any case (the user-exposed Slang language is unchanged), it is intended to set up subsequence changes that will work to make the handling of these types in the compiler more nuanced and correct. Breaking this part of the change out separately is primarily motivated by a desire to minimize the effort for reviewers. --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

Enhance buffer load specialization pass to specialize past field extracts. (#8547)

2025-10-01T02:08:23+00:00

This allows us to specialize functions whose argument is a sub element of a constant buffer, instead of being only applicable to entire buffer element. Closes #8421. This change also implements a proper heuristic to determine when to specialize the calls and defer the buffer loads. This PR addresses a pathological case exposed in `slangpy\slangpy\benchmarks\test_benchmark_tensor.py`, which used to take 27ms to finish, and now takes 1.25ms. For example, given: ``` struct Bottom { float bigArray[1024]; [mutating] void setVal(int index, float value) { bigArray[index] = value; } } struct Root { Bottom top[2]; [mutating] void setTopVal(int x, int y, float value) { top[x].setVal(y, value); } } RWStructuredBuffer sb; [shader("compute")] [numthreads(1, 1, 1)] void compute_main(uint3 tid: SV_DispatchThreadID) { sb[0].setTopVal(1, 2, 100.0f); } ``` We are now able to specialize the call to `setTopVal` into: ``` void compute_main(uint3 tid: SV_DispatchThreadID) { setTopVal_specialized(0, 1, 2, 100.0f); } void setTopVal_specialized(int sbIdx, int x, int y, float value) { Bottom_setVal_specialized(sbIdx, x, y, value); } void Bottom_setVal_specialized(int sbIdx, int x, int y, float value) { sb[sbIdx].top[x].bigArray[y] = value; } ``` And get rid of all unnecessary loads. Achieving this requires a combination of function call specialization and buffer-load-defer pass. The buffer-load-defer pass has been completely rewritten to be more correct and avoid introducing redundant loads. This PR also adds tests to make sure pointers, bindless handles, and loads from structured buffer or constant buffers works as expected.

Force inline functions that takes InputPatch and OutputPatch (#6407)

2025-02-20T04:43:00+00:00

This commit inlines functions that takes InputPatch and OutputPatch as the function parameter. Co-authored-by: Yong He

Fix resource specialization issue where store insts from inlined calls are not considered properly. (#6099)

2025-01-17T02:43:46+00:00

* Fix resource specialization issue where stores from inlined calls are not considered. * Format

Add `IDifferentiablePtrType` support for arrays (#5576)

2024-11-18T21:34:03+00:00

* Add `IDifferentiablePtrType` support for arrays - Also fixes an issue with spirv-emit of constructors that contain references to global params * Fix GLSL legalization for arrays of resource types

Make various parameters and return types require specialization when targeting WGSL (#5483)

2024-11-06T11:14:35+00:00

Structured buffer types translate to array types in the WGSL emitter. WGSL doesn't allow passing runtime-sized arrays to functions. Similarly for pointers to texture handles. Also, structured buffers (runtime-sized arrays) cannot be returned in WGSL. This closes issue #5228, issue #5278 and issue #5288 by enabling specialized functions to be generated in these cases, in order to work around these constraints.

Move switch statement bodies to their own lines (#5493)

2024-11-05T17:47:26+00:00

* Move switch statement bodies to their own lines * format --------- Co-authored-by: Yong He

Write only texture types. (#5454)

2024-10-30T21:07:38+00:00

* Add support for write-only textures. * Fix capabilities. * Fix implementation. * Fix. * format code --------- Co-authored-by: Ellie Hermaszewska Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

format

2024-10-29T06:49:26+00:00

* format * Minor test fixes * enable checking cpp format in ci

Fix resource specialization with `-embed-dxil` (#4990)

2024-09-04T23:57:06+00:00

* Fix resource specialization with `-embed-dxil` fixes: #4989 Changes: 1. Before handing off to DCE an `oldFunc` which should be removed, clean up any leftover `IRKeepAliveDecoration` (else DCE won't remove our `oldFunc`s)