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rust-gpu Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

Changed 🛠

  • PR#1127 updated spirv-tools to 0.10.0, which follows vulkan-sdk-1.3.275
  • PR#1101 added ignore and no_run to documentation to make cargo test pass
  • PR#1112 updated wgpu and winit in example runners
  • PR#1100 updated toolchain to nightly-2023-09-30
  • PR#1091 updated toolchain to nightly-2023-08-29
  • PR#1085 updated toolchain to nightly-2023-07-08
  • PR#1115 relaxed glam version requirements (from >=0.22, <=0.24 to >=0.22, <=0.25)

Fixed 🩹

  • PR#1129 fixed #1062 by not flipping the comparison of the rotate amount with zero

[0.9.0]

Added ⭐

  • PR#1082 added partial support for extracting format_args! from panic!s, and converting them to debugPrintf calls (if enabled via ShaderPanicStrategy), including runtime arguments (u32/i32/f32 with Display/Debug formatting, for now)
  • PR#1081 added the ability to access SPIR-V specialization constants (OpSpecConstant) via entry-point inputs declared as #[spirv(spec_constant(id = ..., default = ...))] x: u32
    (see also the #[spirv(spec_constant)] attribute documentation)
  • PR#1036 added a --force-spirv-passthru flag to example-runner-wgpu, to bypass Naga (wgpu's shader translator), used it to test debugPrintf for wgpu, and updated ShaderPanicStrategy::DebugPrintfThenExit docs to reflect what "enabling debugPrintf" looks like for wgpu
    (e.g. VK_LOADER_LAYERS_ENABLE=VK_LAYER_KHRONOS_validation VK_LAYER_ENABLES=VK_VALIDATION_FEATURE_ENABLE_DEBUG_PRINTF_EXT DEBUG_PRINTF_TO_STDOUT=1)
  • PR#1080 added debugPrintf-based panic reporting, with the desired behavior selected via spirv_builder::ShaderPanicStrategy
    (see its documentation for more details about each available panic handling strategy)

Changed 🛠

  • PR#1083 updated SPIR-T to get pretty-printer improvements (especially for OpExtInst, including Rust-GPU's custom ones), and started more aggressively deduplicating custom debuginfo instructions (to make SPIR-T dumps more readable)
  • PR#1079 revised spirv-builder's README.md, and added a way for docs.rs to be able to build it (via cargo +stable doc --no-default-features)
  • PR#1070 made panics (via the abort intrinsic) early-exit (i.e. return from) the shader entry-point, instead of looping infinitely
  • PR#1071 updated toolchain to nightly-2023-05-27

[0.8.0]

Added ⭐

  • PR#1064 added a Rust-GPU-private "extended instruction set" (to allow us to have custom OpExtInsts), with the initial custom OpExtInsts being used to improve debuginfo source locations (using ranges instead of just the starting position, and tracking inlined calls)

Changed 🛠

  • PR#1067 updated toolchain to nightly-2023-04-15
  • PR#1038 relaxed glam version requirements (from only 0.22, to >=0.22, <=0.24)

Removed 🔥

  • PR#1052 removed --no-spirt, committing to SPIR-T as a mandatory part of the Rust-GPU compiler backend, to reduce the cost of maintenance, testing and further feature development
    • Note: if you were using --no-spirt to work around naga issue #1977
      (valid loops causing The 'break' is used outside of a 'loop' or 'switch' context),
      you may be able to cargo update -p naga to update to a fixed naga version
      (0.11.1 for wgpu 0.15, 0.12.1 for wgpu 0.16, and any later versions)

Fixed 🩹

  • PR#1059 fixed the inline pass not copying OpDecorates in the callee (which led to their loss).

[0.7.0]

Added ⭐

  • PR#1020 added SPIR-T qptr support in the form of --spirt-passes=qptr, a way to turn off "Storage Class inference", and reporting for SPIR-T diagnostics - to test qptr fully, you can use:
    RUSTGPU_CODEGEN_ARGS="--no-infer-storage-classes --spirt-passes=qptr"
    (see also the SPIR-T qptr PR for more details about the qptr experiment)
  • PR#1039 added new experimental sample_with to Image API to set additional image operands
  • PR#1031 added Components generic parameter to Image type, allowing images to return lower dimensional vectors and even scalars from the sampling API

Changed 🛠

  • PR#1040 refactored "zombie" (delayed error) reporting to use SPIR-V OpSource, be more helpful, and added --no-early-report-zombies to delay it even further
    (see also the --no-early-report-zombies codegen args docs)
  • PR#1035 reduced the number of CGUs ("codegen units") used by spirv-builder to just 1
  • PR#1011 made NonWritable all read-only storage buffers (i.e. those typed &T, where T doesn't have interior mutability)
  • PR#1029 fixed SampledImage::sample fns being unnecessarily marked as unsafe
  • PR#1005 updated toolchain to nightly-2023-03-04

Fixed 🩹

  • PR#1041 fixed Image::gather() not always returning a Vec4.
  • PR#1025 fixed #1024 by keeping checked arithmetic "zombie" bools disjoint from normal bool (false) consts
  • PR#1023 fixed #1021 by always inlining calls with "not obviously legal" pointer args (instead of only inlining calls with "obviously illegal" pointer args)
  • PR#1009 fixed #1008 by reinstating mutability checks for entry-point parameters pointing into read-only storage classes (e.g. #[spirv(uniform)] x: &mut u32 is now again an error)
  • PR#995 fixed #994 by using OpAtomicFAddEXT instead of OpAtomicFMaxEXT in atomic_f_add

[0.6.1]

Fixed 🩹

  • PR#1006 fixed #1002 by rewriting away all spirv-std uses of asm!("OpReturnValue %result") and disallowing OpReturn/OpReturnValue from inline asm! (as it's always UB to leave asm! blocks in any way other than falling through their end)

[0.6.0]

Added ⭐

  • PR#998 added extra_arg() SpirvBuilder API to be able to set codegen args otherwise not supported by the API (for example, to set --spirv-passes)

Changed 🛠

  • PR#999 made the SPIR-🇹 shader IR framework the default (you can opt out via RUSTGPU_CODEGEN_ARGS=--no-spirt)
  • PR#992 renamed rust-toolchain to rust-toolchain.toml
  • PR#991 updated toolchain to nightly-2023-01-21
  • PR#990 removed return type inference from Image API and made glam usage mandatory

[0.5.0]

Added ⭐

Changed 🛠️

  • PR#982 updated toolchain to nightly-2022-12-18
  • PR#953 migrated to the Rust 2021 edition, and fixed Rust 2021 support for shader crates to be on par with Rust 2018 (discrepancies having been limited to/caused by panic! changes in Rust 2021)

[0.4.0]

Added ⭐

  • PR#959 added two spirv-builder environment variables to customize only the rustc invocations for shader crates and their dependencies:
    • RUSTGPU_RUSTFLAGS="..." for shader RUSTFLAGS="..."
    • RUSTGPU_CODEGEN_ARGS="..." for shader "codegen args" (i.e. RUSTFLAGS=-Cllvm-args="...")
      (check out the "codegen args" docs, or run with RUSTGPU_CODEGEN_ARGS=--help to see the full list of options)
  • PR#940 integrated the experimental SPIR-🇹 shader IR framework into the linker
    (opt-in via RUSTGPU_CODEGEN_ARGS=--spirt, see also the --spirt docs, for more details)

Changed 🛠️

  • PR#958 updated toolchain to nightly-2022-10-29
  • PR#941 applied workspace inheritance to Cargo.toml files
  • PR#959 moved rustc_codegen_spirv debugging functionality from environment variables to "codegen args" options/flags (see the updated docs for more details)
  • PR#967 made --dump-* "codegen args" include identifying information (e.g. crate names) in the names of files they emit

Removed 🔥

  • PR#946 removed the fn/closure #[spirv(unroll_loops)] attribute, as it has no users, is becoming non-trivial to support, and requires redesign for better ergonomics (e.g. #[spirv(unroll)] applied to individual loops, not the whole fn/closure)

[0.4.0-alpha.17]

Fixed 🩹

  • PR#937 fixed Rust-GPU crates not referring to each-other by exact version
  • PR#937 fixed spirv-std referring to an older version of spirv-std-macros

[0.4.0-alpha.16]

Added ⭐

  • PR#935 added check for environment variable RUSTGPU_SKIP_TOOLCHAIN_CHECK to prevent toolchain check

Changed 🛠️

  • 🚨BREAKING🚨 #926 migrated from register_attr to register_tool. More information.
  • PR#935 updated toolchain to nightly-2022-10-01
  • PR#934 updated glam to 0.22
  • PR#928 updated spirv-tools to 0.9 (SPIRV-Tools 2022.4)

Removed 🔥

  • PR#934 Removed glam::BVec support (they are no longer #[repl(simd)] in glam, as Rust doesn't support SIMD vectors with bool elements)

Fixed 🩹

  • PR#927 re-taught Cargo to rebuild shader crates when rustc_codegen_spirv is rebuilt, via -Zbinary-dep-depinfo (broken since a toolchain update in 0.4.0-alpha.13, and has been causing spurious build failures ever since)

[0.4.0-alpha.15]

Added ⭐

  • PR#919 added a build-time check for the nightly toolchain version, to provide user-friendly error messages

Changed 🛠️

  • PR#918 updated toolchain to nightly-2022-08-29

[0.4.0-alpha.14]

Changed 🛠

  • PR#904 renamed helper spirv-types crate to spirv-std-types

[0.4.0-alpha.13]

Added ⭐

  • PR#717 added noreturn support to inline asm!
  • PR#742 added a spirv-builder option to include all debug info
  • PR#787 documented Cargo.toml [profile.⋯.build-override] setting for avoiding slow builds
  • PR#830 added a spirv-builder option to preserve unused descriptor bindings
  • PR#875 added warnings for #[inline(never)]s the inliner doesn't respect (for legalization reasons)
  • PR#848 added #[spirv(subgroup_local_invocation_id)] built-in (and an examples/shaders/reduce compute shader)
  • new spirv-std APIs: ByteAddressableBuffer#735, SampledImage::sample_by_lod#755, arch::read_clock_khr#757, arch::{signed,unsigned}_{min,max}#763, debug_printf!#768, arch::*memory_barrier*#769, arch::IndexUnchecked#805, RayQuery::confirm_intersection#822, arch::atomic_i_increment#839, arch::atomic#877

Changed 🛠

  • PR#743 set the SPIR-V "generator magic number" to the value reserved for Rust-GPU
  • PR#761 made spirv-std build on stable Rust by avoiding enums in const-generics
  • PR#784 documented spirv-std throughout
  • PR#862 updated toolchain to nightly-2022-04-11
  • PR#846 updated spirv-tools to 0.8 (SPIRV-Tools 2022.1)
  • PR#888 widened the supported glam version range to 0.17-0.21

Fixed 🩹

  • PR#729 fixed #723 by explicitly allowing unused shader inputs/outputs in storage class inference
  • PR#732 fixed rustc ICE messages being truncated with rustc_codegen_spirv (broken since a toolchain update in 0.4.0-alpha.12)
  • PR#737 fixed #642 by re-adding -Zsymbol-mangling-version=v0 (for generic parameters in fn names)
  • PR#766 fixed #373 and #731 by hooking rustc to limit function call ABIs to what Rust-GPU supports
  • PR#793 fixed #748 by supporting SPIR-V 1.4's changed entry-point rules
  • PR#844 fixed #836 by making newtypes (e.g. single-field structs) wrapping ScalarPairs (e.g. (u32, u32) or &[T]) have the same SPIR-V type as their inner field

[0.4.0-alpha.12]

Added ⭐

  • PR#704 added Image::gather and Image::sample_bias to spirv-std
  • PR#709 added float packing/unpacking operations to spirv-std

Changed 🛠

  • PR#716 updated toolchain to nightly-2021-08-10

Removed 🔥

  • PR#710 removed "implicit bindless" and kernel modes

[0.4.0-alpha.11]

Changed 🛠

[0.4.0-alpha.10]

Added ⭐

  • PR#655 added a watch feature to spirv-builder for hot reloading shaders
  • PR#652 documented Image! in the Rust-GPU book
  • PR#660 added a spirv-builder option to name global OpVariables
  • PR#662 added type aliases for common uses of Image!
  • PR#683 added a spirv-builder option to treat warnings as errors

Changed 🛠

  • PR#672 updated toolchain to nightly-2021-06-09
  • PR#674 updated glam to 0.16

Removed 🔥

  • PR#666 removed arch::arithmetic from spirv-std

[0.4.0-alpha.9]

Fixed 🩹

  • fixed miscompilation in peephole optimizations (see PR#646)

[0.4.0-alpha.8]

Added ⭐

  • PR#608 added Image::query_* operations to spirv-std
  • PR#610 added spirv-builder support for enabling extra extensions and/or capabilities
  • PR#612 added is_helper_invocation to spirv-std
  • PR#624 added OpTypeSampler and OpTypeAccelerationStructureKHR support to inline asm!
  • PR#622 added the ability to query entry-point names from spirv-builder
  • PR#630 added a more convenient API to spirv-builder, for requesting extensions and/or capabilties
  • PR#629 added an optimization to convert N identical scalar (e.g. arithmetic) ops, into one N-wide vector op (as e.g. glam only emits the former)
  • PR#596 added a RuntimeArray type to spirv-val, to represent SPIR-V OpRuntimeArrays
  • PR#635 added several spirv-builder options for controlling spirv-val flags
  • PR#643 added Image::read_subpass to spirv-std

Changed 🛠

  • PR#616 updated spirv-tools to 0.6.1 and turned on emission of line-based debug info
  • PR#631 updated toolchain to nightly-2021-05-24
  • PR#641 made spirv-std depend on glam (0.15.2), instead of the other way around

[0.4.0-alpha.7]

Fixed 🩹

  • PR#607 removed accidental use of feature(or_patterns) (recently stabilized, only on nightly)

[0.4.0-alpha.6]

Added ⭐

  • PR#586 added support for constant memory (&'static _ references), within the limits of SPIR-V
  • PR#559 added the ability to set a Rust "target triple" in spirv-builder (e.g. "spirv-unknown-vulkan1.1" for Vulkan 1.1)
  • PR#563 added SPV_KHR_ray_tracing APIs to spirv-std
  • PR#572 added SPV_KHR_ray_query APIs to spirv-std
  • PR#359 added a const-generic Image type, and Image! macro wrapping it (to add "named parameters"), to spirv-std

Changed 🛠

  • PR#587 updated glam to 0.14
  • PR#605 updated toolchain to nightly-2021-04-25

Fixed 🩹

  • PR#594 fixed #585 by explicitly banning Image/Sampler/SampledImage entry-point parameters not behind references
  • PR#598 fixed #581 by switching memory::Semantics from an enum to a bitflags!, in spirv-std

[0.4.0-alpha.5]

Removed 🔥

  • PR#583 removed memcmp from spirv-std

[0.4.0-alpha.4]

Added ⭐

  • PR#519 added memory_barrier and control_barrier to spirv-std

Changed 🛠

  • PR#567 removed the need to manually specify the storage class for Image/Sampler/ImageSampler entry-point parameters

Deprecated 🚧

  • PR#576 deprecated #[spirv(block)] in favor of automatically wrapping the user types in "interface blocks"

[0.4.0-alpha.3]

Added ⭐

  • PR#551 added multi-module (one SPIR-V module per entry-point) support to spirv-builder
  • PR#504 added basic support for unsized structs (e.g. ending with a [T] field)
  • PR#545 added Image methods for sampling depth reference and/or with project coordinate, to spirv-std

[0.4.0-alpha.2]

Added ⭐

  • PR#541 added #[spirv(invariant)] (like the invariant keyword in GLSL)

Fixed 🩹

  • made arch::derivative functions public, in spirv-std

[0.4.0-alpha.1]

Added ⭐

  • PR#498 added sample_by_lod/sample_by_gradient image methods to spirv-std
  • PR#521 added Cubemap to spirv-std
  • PR#520 added arch::primitive functions to spirv-std

Changed 🛠

  • PR#496 updated spirv-tools to 0.5.0
  • PR#516 updated toolchain to nightly-2021-03-21
  • PR#443 replaced spirv_std::storage_class "named pointer types" with #[spirv(...)] &T entry-point parameters

[0.3.1]

Added ⭐

  • PR#480 added a fetch image method to spirv-std
  • PR#446 added arch::* functions for all SPIR-V arithmetic operations (not involving matrices), to spirv-std

Removed 🔥

  • PR#476 removed glam as a dependency of spirv-std

[0.3.0]

Added ⭐

  • PR#414 added storage class type inference
  • PR#469 added initial support for Algebraic Data Type enums (e.g. Option<T>)
  • PR#421 added ability to provide const arguments to asm!
  • PR#458 added ability to set entry_point_name in entry point attributes to change the final name of an entry point
  • PR#337 added #[spirv(unroll_loops)] attribute to functions, which tells rustc_codegen_spirv to annotate all loops inside with Unroll
  • PR#394 added a new [arch] module which provides an abstraction some basic SPIR-V instructions as free functions.
  • PR#340 added the spirv-std-macros crate for holding the spirv proc macro
  • PR#392 added the gpu_only proc macro
  • PR#377 Derivative is now implemented for glam::{Vec2, Vec3, Vec3A, Vec4}
  • PR#401 added ability to build shaders in release mode
  • new spirv-std APIs: vector_extract_dynamicPR#394, vector_insert_dynamicPR#411, textures::StorageImage2dPR#434, any/allPR#380, discardPR#441, demote_to_helper_invocationPR#380, SampledImagePR#320

Changed 🛠

  • PR#461 removed requirement of #[allow(unused_attributes)] in front of #[spirv] attributes to remove warnings
  • PR#398 rustc_codegen_spirv now removes different OpNames that target the same ID
  • PR#396 rustc_codegen_spirv now tries to deduplicate generated OpVariables

[0.2.0]

Added ⭐

  • PR#287 added a new structurizer, which means that you can now use match expressions and continues
  • PR#317 added the #[spirv(flat)] attribute that matches SPIR-V's "Flat" decorator.
  • PR#276 added support for textures.
  • PR#305 added support for panic!
  • PR#165 added support for SPIR-V 1.0
  • PR#268 added support for procedural macros
  • PR#195 added initial support for compute shaders
  • PR#254 added initial support in Rust and rust-gpu for inline SPIR-V with the asm! nightly feature

Changed 🛠

  • PR#219 improvements to error messages regarding constant pointers
  • PR#280 all Storage Classes (e.g. Input/Output) are now defined in spirv_std::storage_class
  • PR#275 Rust's language items such rust_eh_personality and panic_handler are now defined in spirv-std for SPIR-V targets

[0.1.0]

Initial release.