v0.12.0

GENERAL

• Allow array_index to be unsigned. (#2298) @daxpedda
• Add ray query support. (#2256) @kvark
• Add partial derivative builtins. (#2277) @evahop
• Skip gl_PerVertex unused builtins in the SPIR-V frontend. (#2272) @teoxoy
• Differentiate between i32 and u32 in switch statement cases. (#2269) @evahop
• Fix zero initialization of workgroup memory. (#2259) @teoxoy
• Add countTrailingZeros. (#2243) @gents83
• Fix texture built-ins where u32 was expected. (#2245) @evahop
• Add countLeadingZeros. (#2226) @evahop
• [glsl/hlsl-out] Write sizes of arrays behind pointers in function arguments. (#2250) @pluiedev

VALIDATOR

• Validate vertex stage returns the position built-in. (#2264) @teoxoy
• Enforce discard is only used in the fragment stage. (#2262) @Uriopass
• Add Capabilities::MULTISAMPLED_SHADING. (#2255) @teoxoy
• Add Capabilities::EARLY_DEPTH_TEST. (#2255) @teoxoy
• Add Capabilities::MULTIVIEW. (#2255) @teoxoy
• Improve forward declaration validation. (#2232) @JCapucho

WGSL-IN

• Use alias instead of type for type aliases. (#2299) @FL33TW00D
• Add predeclared vector and matrix type aliases. (#2251) @evahop
• Improve invalid assignment diagnostic. (#2233) @SparkyPotato
• Expect semicolons wherever required. (#2233) @SparkyPotato
• Fix panic on invalid zero array size. (#2233) @SparkyPotato
• Check for leading { while parsing a block. (#2233) @SparkyPotato

SPV-IN

• Don't apply interpolation to fragment shaders outputs. (#2239) @JCapucho

GLSL-IN

• Add switch implicit type conversion. (#2273) @evahop
• Document some fields of naga::front::glsl::context::Context. (#2244) @jimblandy
• Perform output parameters implicit casts. (#2063) @JCapucho
• Add not vector relational builtin. (#2227) @JCapucho
• Add double overloads for relational vector builtins. (#2227) @JCapucho
• Add bool overloads for relational vector builtins. (#2227) @JCapucho

SPV-OUT

• Fix invalid spirv being generated from integer dot products. (#2291) @PyryM
• Fix adding illegal decorators on fragment outputs. (#2286) @Wumpf
• Fix countLeadingZeros impl. (#2258) @teoxoy
• Cache constant composites. (#2257) @evahop
• Support SPIR-V version 1.4. (#2230) @kvark

MSL-OUT

• Replace per_stage_map with per_entry_point_map (#2237) @armansito
• Update firstLeadingBit for signed integers (#2235) @evahop

HLSL-OUT

• Use Interlocked<op> intrinsic for atomic integers (#2294) (#2294) @ErichDonGubler
• Document storage access generation. (#2295) @jimblandy
• Emit constructor functions for arrays. (#2281) @ErichDonGubler
• Clear named_expressions inserted by duplicated blocks. (#2116) @teoxoy

GLSL-OUT

• Skip invariant for gl_FragCoord on WebGL2. (#2254) @grovesNL
• Inject default gl_PointSize = 1.0 in vertex shaders if FORCE_POINT_SIZE option was set. (#2223) @REASY