Making it easier to work with shaders https://git.yummers.dev/slang.git/atom?h=master 2025-08-01T09:18:53+00:00 2025-08-01T09:18:53+00:00 Harsh Aggarwal (NVIDIA) haaggarwal@nvidia.com 2025-08-01T09:18:53+00:00 urn:sha1:bdda8a90cdd44ca822b21233ac988f92d1f20826 * Fix 7441: CUDA boolean vector layout to use 1-byte elements Boolean vectors (bool1, bool2, bool3, bool4) were incorrectly implemented as integer-based types using 4 bytes per element instead of actual 1-byte boolean elements on CUDA targets. Changes: - Update CUDA prelude to define boolean vectors as structs with bool fields instead of typedef aliases to integer vectors - Implement CUDALayoutRulesImpl::GetVectorLayout to use 1-byte alignment for boolean vectors, matching actual CUDA memory layout behavior - Update make_bool functions to populate struct fields correctly This ensures boolean vectors have the same memory layout as bool[4] arrays: - bool1: 1 byte (was 4 bytes) - bool2: 2 bytes (was 8 bytes) - bool3: 3 bytes (was 12 bytes) - bool4: 4 bytes (was 16 bytes) Fixes memory layout mismatch between Slang reflection API and actual CUDA compilation, achieving 75% memory savings for boolean vector usage. * Fix CI issues - Add and update associated functions and operators * Make boolX same as uchar * Use align construct on struct for boolX * Improve Test case for robust alignment checks * Formatting * Disable selected slangpy tests * add metal check which is slightly different than cuda * Test-1 * Test-2 * Test-3 * Test-4 * ReflectionChange * cleanup and update * _slang_select with plain bool is needed for reverse-loop-checkpoint-test 2024-12-21T16:14:56+00:00 Stan 109335133+stanoddly@users.noreply.github.com 2024-12-21T16:14:56+00:00 urn:sha1:76fdeaa477a5d21176facf0296f77e28e2d59477 2023-06-27T15:28:14+00:00 jsmall-nvidia jsmall@nvidia.com 2023-06-27T15:28:14+00:00 urn:sha1:1b01ff909afa1eb6700c0dc947e679b9c3890880 * WIP looking at reflection with pointers. * Added GetPointerLayout. * Initial test via reflection with layout of ptr type. * WIP handles ptrs to types that have layout that hasn't been completed. * Move tests to ptr. * WIP try to take into account lowering correctly between AggTypeDecl and Type, but doesn't quite work. * WIP a different path to handling recursive lowering problem with Ptr. * Fix issues with reflection output. * Small tidy. * Fix for infinite recursion issue. * Lower IRPointerTypeLayout * Working with generics. Has a hack to work around Layout around Ptr in IR. The reflection around the generic - the name isn't much use, it should probably have the generic parameters, but that would require getName to do something more sophisticated. * Fix issue around calling finishOuterGenerics to early. * Remove feature/ptr test. * Fix type legalization being an infinite loop with Ptr self referencing. * Disable the pointer self reference test because produces an infintie loop on emit. * Fixed comment based on review. * Fix for issue with emit and pointers causing infinite recursion.