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path: root/source/slang/slang-ir-simplify-cfg.cpp
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2025-07-01extend fiddle to allow custom lua splices in more places (#7559)Ellie Hermaszewska
* 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
2025-04-21Allow simplifying self-referential Phi parameters (#6870)Julius Ikkala
2025-04-11Add flag to hoist instructions (#6740)jarcherNV
This fixes issue #6654 Only hoist instructions that are optimized by prepareFuncForForwardDiff. Add flag hoistLoopInvariantInsts to IRSimplificationOptions and set this to true only if called from prepareFuncForForwardDiff, then only hoist if the flag is set. Additionally, do not hoist loops if they only have a single trivial iteration.
2025-01-14Fix simplify if-else (#6077)cheneym2
* Fix simplify if-else The if-else optimization observes that at if at least one true/false block is merely an unconditional jump to the after block, that the whole if-else can be replaced with a jump to the after block. But it's important to copy the phi arguments from the aforementioned unconditional jump, rather than what is present in the 'true' block, since the 'true' block might actually just be the after block itself. Below, the ifElse() would be replaced with an unconditional jump to block %39, but with the `phi` arguments copied from the branch to %29, which is an unrelated block. ifElse(%38, %39, %40, %39) block %40: unconditionalBranch(%39) block %39: unconditionalBranch(%29, 0 : Float) block %29( [nameHint("ret")] param %ret : Float): Fixes issue #5972 * format code --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> Co-authored-by: Yong He <yonghe@outlook.com>
2024-11-05Move switch statement bodies to their own lines (#5493)Ellie Hermaszewska
* Move switch statement bodies to their own lines * format --------- Co-authored-by: Yong He <yonghe@outlook.com>
2024-10-29formatEllie Hermaszewska
* format * Minor test fixes * enable checking cpp format in ci
2024-05-17Add `-minimum-slang-optimization` to favor compile time. (#4186)Yong He
2023-11-16Unify stdlib `Texture` types into one generic type. (#3327)Yong He
* 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. --------- Co-authored-by: Yong He <yhe@nvidia.com>
2023-10-25Fix single iteration loop detection logic. (#3287)Yong He
Co-authored-by: Yong He <yhe@nvidia.com>
2023-10-04SPIRV compiler performance fixes. (#3258)Yong He
* SPIRV compiler performance fixes. * Cleanup. * update project files * Cleanup debug code. * Make redundancy removal non-recursive. --------- Co-authored-by: Yong He <yhe@nvidia.com>
2023-09-21Various slangpy fixes. (#3227)Yong He
* Make dynamic cast transparent through `IRAttributedType`. * Add [CUDAXxx] variant of attributes. * Support marshaling of vector types. * Wrap cuda kernels in `extern "C"` block. --------- Co-authored-by: Yong He <yhe@nvidia.com>
2023-08-25Fix various issues with trivial loops (#3149)Sai Praveen Bangaru
* Fix issue with trivial loop detection * Fix issue with unreachable blocks in break elimination Add logic to avoid eliminating loops with multi-level breaks. * Incorporate feedback - Use a boolean for multi-level break check - Use dominator trees for region check instead of exhaustive enumeration - Fix potential issue with enumerating parent break blocks. * fix
2023-08-24Misc. SPIRV Fixes, Part 2. (#3147)Yong He
* Misc. SPIRV Fixes, Part 2. * Fix up. * Fix. * Add system smenatic values. * 16 bit int and floats, matrix/vector reshape, bool ops. * Fix. * Fix. * Allow push constant entry point params. * entrypoint params. * swizzleSet and swizzledStore. * packoffset. * string hash. * Fix. * Matrix arithmetics. --------- Co-authored-by: Yong He <yhe@nvidia.com>
2023-08-16Simplify IfElse instructions with a single trivial block (#3114)Ellie Hermaszewska
2023-08-14Fix issue with nested loop unrolling (#3100)Sai Praveen Bangaru
* Do not eliminate single-iter-loops that have inner loops using their break label. * Add test * Delete out-old.hlsl * Update slang-ir-autodiff-cfg-norm.cpp * Fix whitespace
2023-07-20Fix issue with loop elimination not working on certain side-effect-free ↵Sai Praveen Bangaru
loops (#3005) Co-authored-by: Yong He <yonghe@outlook.com>
2023-07-18Simplify Lookup and improve compiler performance. (#2996)Yong He
* Simplify lookup. * Various bug fixes. * Report type dictionary size in perf benchmark. * Remove type duplication. * increase initial dict size. * Bug fix. * Fix bugs. * Fixup. * Revert type legalization looping. * Fix specialization pass. --------- Co-authored-by: Yong He <yhe@nvidia.com>
2023-06-26Fix DCE on mutable calls in a loop. (#2943)Yong He
* Fix DCE on mutable calls in a loop. * More accurate in-loop test. * code review fixes. * Fix. --------- Co-authored-by: Yong He <yhe@nvidia.com>
2023-05-09Fix function side-effectness prop logic. (#2875)Yong He
2023-04-25Dictionary using lowerCamel (#2835)jsmall-nvidia
* #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.
2023-03-23Fix optimization pass not converging. (#2725)Yong He
* Fix optimization pass not converging. * Fix. * Fix tests. --------- Co-authored-by: Yong He <yhe@nvidia.com>
2023-03-22Type legalization and autodiff bug fixes. (#2722)Yong He
* Bug fixes. * Fix. * Only perform autodiff for functions whose derivative is actually used. * Fix loop optimize bug. * Fix high order diff. * Fix trivial diff func generation. * Fixes. * Cleanup. --------- Co-authored-by: Yong He <yhe@nvidia.com>
2023-02-24More control flow simplifications. (#2673)Yong He
* More control flow and Phi param simplifications. * Fix. * Fix gcc error. * Fix. * More IR cleanup. * Fix bug in phi param dce + ifelse simplify. * Propagate and DCE side-effect-free functions. * Enhance CFG simplifcation to remove loops with no side effects. * Fix. * Fixes. * Fix tests. Add [__AlwaysFoldIntoUseSite] for rayPayloadLocation. * More cleanup. * Fixes. * Fix. --------- Co-authored-by: Yong He <yhe@nvidia.com>
2023-02-16Remove `SharedIRBuilder`. (#2657)Yong He
Co-authored-by: Yong He <yhe@nvidia.com>
2023-02-13Add Loop Unrolling Pass. (#2644)Yong He
Co-authored-by: Yong He <yhe@nvidia.com>
2023-01-23Full address insts elimination for backward autodiff. (#2604)Yong He
Co-authored-by: Yong He <yhe@nvidia.com>
2022-11-10Fix inlining pass. (#2506)Yong He
* Fix inlining pass. * Add more check against corner cases. * Revise comments. * Fixes. * Fix premake script. * Fixes. Co-authored-by: Yong He <yhe@nvidia.com>
2022-10-11Small IR cleanups. (#2441)Yong He
2022-10-10Support multi-level break + single-return conversion + general inline. (#2436)Yong He
* Support multi-level break. * Single return. * Add test for inlining `void` return-type functions. Co-authored-by: Yong He <yhe@nvidia.com>
2022-02-25Improved SCCP, inlining and resource specialization passes, legalize ↵Yong He
`ImageSubscript` for GLSL (#2146)
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