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Revision history for SPIRV-Tools
v2020.7-dev 2020-12-07
- Start v2020.7-dev
v2020.6 2020-12-07
- General
CMake: Add SPIRV_TOOLS_BUILD_STATIC flag (#3910)
- Disassembler
Add some context comments to disassembly. (#3847)
- Optimizer
- Take new (raytracing) termination instructions into account. (#4050)
- Do run DCE if SPV_KHR_ray_query is used. (#4047)
- Handle 8-bit index in elim dead member (#4043)
- Add texel buffer out-of-bounds checking instrumentation (#4038)
- Update MeshShadingNV dependencies (and land Ray tracing updates) (#4028)
- Fix buffer oob instrumentation for matrix refs (#4025)
- Fix SSA re-writing in the presence of variable pointers. (#4010)
- Add support to prevent functions from being inlined if they have
DontInline flag (#3858)
- Add SPV_EXT_shader_image_int64 (#3852)
- Support SPV_KHR_fragment_shading_rate (#3943)
- Fix use-after-move in val/validate.cpp (#3848)
- Debug Info
- properly preserve DebugValue indexes operand (#4022)
- Add DebugValue for invisible store in single_store_elim (#4002)
- Propagate OpLine to all applied instructions in spirv-opt (#3951)
- Add DebugValue for DebugDecl invisible to value assignment (#3973)
- Add DebugValue for function param regardless of scope (#3923)
- Debug info preservation in convert-local-access-chains pass (#3835)
- Debug info preservation in redundancy-elimination pass (#3839)
- Debug info preservation in if-conversion pass (#3861)
- Validator
- Add validation support for the ray tracing built-in variables (#4041)
- Use less stack space when validating Vulkan builtins (#4019)
- Fix SPV_KHR_fragment_shading_rate VUID label (#4014)
- Label Layer and ViewportIndex VUIDs (#4013)
- Allow the ViewportIndex and Layer built-ins on SPIR-V 1.5 (#3986)
- Fix validation of OpPhi instructions (#3919)
- Fuzz
- Fix facts arising from CompositeConstruct (#4034)
- Do not flatten conditionals that create synonyms (#4030)
- Add support for reining in rogue fuzzer passes (#3987)
- Fix assertion failure in FuzzerPassAddCompositeExtract (#3995)
- Fix invalid equation facts (#4009)
- Fix bugs in TransformationFlattenConditionalBranch (#4006)
- Fix bug related to transformation applicability (#3990)
- Add expand vector reduction transformation (#3869)
- Add FuzzerPassAddCompositeExtract (#3904)
- Fix mismatch with shrinker step limit (#3985)
- Fix off-by-one error in replayer (#3982)
- Get order right for OpSelect arguments (#3974)
- Do not add synonym-creating loops in dead blocks (#3975)
- Skip OpTypeSampledImage when propagating up (#3976)
- Pass OpUndef in function call if needed (#3978)
- Fix off-by-one in TransformationCompositeConstruct (#3979)
- Tolerate absent ids in data synonym fact management (#3966)
- Fix to id availability (#3971)
- Fix operand types (#3962)
- Don't flatten conditional if condition is irrelevant (#3944)
- Do not produce OpPhis of type OpTypeSampledImage (#3964)
- Restrict fuzzer pass to reachable blocks (#3970)
- Handle more types when extending OpPhi instructions (#3969)
- Skip early terminator wrappers when merging returns (#3968)
- Avoid irrelevant constants in synonym-creating loops (#3967)
- Skip dead blocks in FuzzerPassAddOpPhiSynonyms (#3965)
- Avoid the type manager when looking for struct types (#3963)
- Fix to TransformationDuplicateRegionWithSelection (#3941)
- Skip OpFunction when replacing irrelevant ids (#3932)
- Use component-wise selectors when flattening conditional branches (#3921)
- Avoid void struct member when outlining functions (#3936)
- Do not allow Block-decorated structs when adding parameters (#3931)
- Fix to operand id type (#3937)
- Handle dead blocks in TransformationEquationInstruction (#3933)
- Do not allow sampled image load when flattening conditionals (#3930)
- Take care of OpPhi instructions when inlining (#3939)
- Fix to TransformationInlineFunction (#3913)
- Wrap early terminators before merging returns (#3925)
- Lower probability of adding bit instruction synonyms (#3917)
- Fix handling of OpPhi in FlattenConditionalBranch (#3916)
- Avoid creating blocks without parents (#3908)
- Do not allow creation of constants of block-decorated structs (#3903)
- Fixes related to irrelevant ids (#3901)
- Fix to transformation that adds a synonym via a loop (#3898)
- Fix to duplicate region with selection (#3896)
- Do not expose synonym facts for non-existent ids (#3891)
- Do not add synonyms involving irrelevant ids (#3890)
- Do not replace irrelevant ids that are not in blocks (#3892)
- Wrap OpKill and similar in function calls (#3884)
- Integrate spirv-reduce with shrinker (#3849)
- Report fresh ids in transformations (#3856)
- Support OpNot bit instruction case (#3841)
- Return IR and transformation context after replay (#3846)
v2020.5 2020-09-22
- General
- Enable building with BUILD_SHARED_LIBS=1 (#3490)
- Avoid using /MP4 for clang on windows. (#3662)
- Fix compiler error on macOS with XCode12. (#3836)
- Optimizer
- Preserve OpenCL.DebugInfo.100 through private-to-local pass (#3571)
- Preserve debug info in scalar replacement pass (#3461)
- Debug info preservation in loop-unroll pass (#3548)
- Preserve debug info in dead-insert-elim pass (#3652)
- Improve non-semantic instruction handling in the optimizer (#3693)
- Let ADCE pass check DebugScope (#3703)
- Add undef for inlined void function (#3720)
- Fix SSA-rewrite to remove DebugDeclare for variables without loads (#3719)
- Handle DebugScope in compact-ids pass (#3724)
- Add buffer oob check to bindless instrumentation (#3800)
- Validator
- Update OpenCL capabilities validation (#3149)
- Validator support for non-semantic clspv reflection (#3618)
- OpenCL.DebugInfo.100 DebugTypeArray with variable size (#3549)
- Only validation locations for appropriate execution models (#3656)
- Validate more OpenCL.DebugInfo.100 instructions (#3684)
- Allow DebugTypeTemplate for Type operand (#3702)
- spirv-val: Add Vulkan VUID labels to BuiltIn (#3756)
- Allow SPV_KHR_8bit_storage extension. (#3780)
- Validate SPIRV Version number when parsing binary header (#3834)
- Reduce
- Support reducing a specific function (#3774)
- Fuzz
- adds TransformationReplaceCopyObjectWithStoreLoad (#3567)
- adds TransformationReplaceCopyMemoryWithLoadStore (#3575)
- adds TransformationReplaceLoadStoreWithCopyMemory (#3586)
- Implement the OpOuterProduct linear algebra case (#3617)
- Pass to replace int operands with ints of opposite signedness (#3612)
- TransformationMoveInstructionDown (#3477)
- Add TransformationMakeVectorOperationDynamic (#3597)
- TransformationReplaceAddSubMulWithCarryingExtended (#3598)
- FuzzerPassPropagateInstructionsUp (#3478)
- add FuzzerPassAddCompositeInserts (#3606)
- Add inline function transformation (#3517)
- Transformation to replace the use of an irrelevant id (#3697)
- Add SPIRV_FUZZ_PROTOC_COMMAND (#3789)
- Add TransformationDuplicateRegionWithSelection (#3773)
- Transformation to flatten conditional branch (#3667)
- Handle OpPhis in TransformationInlineFunction (#3833)
- Create synonym of int constant using a loop (#3790)
- Support dead blocks in TransformationAddSynonym (#3832)
- Linker
v2020.4 2020-07-22
- General
- Changed variable names to be more descriptive (#3433)
- Add support to GPU-AV instrumentation for Task and Mesh shaders (#3512)
- Permit Simple and GLSL450 memory model in WEBGPU_0 (#3463)
- Support SPV_KHR_terminate_invocation (#3568)
- Optimizer
- Preserving debug information in optimizations
(#3389,#3420,#3425,#3356,#3459,#3444,#3492,#3451,#3497i,#3498,#3542)
- Eliminate branches with condition of OpConstantNull (#3438)
- Use structured order to unroll loops. (#3443)
- Updated desc_sroa to support flattening structures (#3448)
- Support OpCompositeExtract pattern in desc_sroa (#3456)
- Fix ADCE pass bug for mulitple entries (#3470)
- Sink pointer instructions in merge return (#3569)
- Validator
- Validate location assignments (#3308)
- Fix reachability in the validator (#3541)
- Reduce
- Fuzz
- Add support for OpSpecConstant* (#3373)
- Add replace linear algebra instruction transformation (#3402)
- Implement vector shuffle fuzzer pass (#3412)
- Swap operands in OpBranchConditional (#3423)
- Permute OpPhi instruction operands (#3421)
- Add FuzzerPassAddCopyMemoryInstructions (#3391)
- TransformationInvertComparisonOperator (#3475)
- Add variables with workgroup storage class (#3485)
- Add image sample unused components transformation (#3439)
- TransformationReplaceParameterWithGlobal (#3434)
- Support adding dead break from back-edge block (#3519)
- Fuzzer pass to interchange zero-like constants (#3524)
- Linker
v2020.3 2020-05-27
- General
- Prevent Effcee from installing things when building spirv-tools with testing enabled (#3256)
- Update acorn version (#3294)
- If SPIRV-Headers is in our tree, include it as subproject (#3299)
- allow cross compiling for Windows Store, UWP, etc. (#3330)
- Optimizer
- Remove deprecated interfaces from instrument passes (#3361)
- Preserve debug info in inline pass (#3349)
- Handle more cases in dead member elim (#3289)
- Preserve debug info in eliminate-dead-functions (#3251)
- Fix Struct CFG analysis for single block loop (#3293)
- Add tests for recently added command line option (#3297)
- Consider sampled images as read-only storage (#3295)
- Allow various validation options to be passed to spirv-opt (#3314)
- Add debug information analysis (#3305)
- Preserve debug info for wrap-opkill (#3331)
- refactor inlining pass (#3328)
- Add unrolling to performance passes (#3082)
- Validator
- Add validation support for ImageGatherBiasLodAMD (#3363)
- Validate ShaderCallKHR memory scope (#3332)
- Validate Buffer and BufferBlock apply only to struct types (#3259)
- Reduce
- increase default step limit (#3327)
- Remove unused uniforms and similar (#3321)
- Fuzz
- Add support for StorageBuffer (#3348)
- Add validator options (#3254)
- Limit adding of new variables to 'basic' types (#3257)
- Transformation to add OpConstantNull (#3273)
- Handling of more fuzzing opportunities (#3277, #3280, #3281, #3290, #3292)
- Respect rules for OpSampledImage (#3287)
- Do not outline regions that produce pointer outputs (#3291)
- Linker
v2020.2 2020-03-26
- General:
- Support extended instructions in the vscode language server
- Make spvOpcodeString part of the public API (#3174)
- Added guide to writing a spirv-fuzz fuzzer pass (#3190)
- Add support for KHR_ray_{query,tracing} extensions (#3235)
- Optimizer
- Debug Printf support (#3215)
- Add data structure for DebugScope, DebugDeclare in spirv-opt (#3183)
- Fix identification of Vulkan images and buffers (#3253)
- Validator
- Add support for SPV_AMD_shader_image_load_store_lod (#3186)
- Add validation rules for OpenCL.DebugInfo.100 extension (#3133)
- Adding WebGPU specific Workgroup scope rule (#3204)
- Disallow phis of images, samplers and sampled images (#3246)
- Reduce
- Fuzz
- Fuzzer passes to add local and global variables (#3175)
- Add fuzzer passes to add loads/stores (#3176)
- Fuzzer pass to add function calls (#3178)
- Fuzzer pass that adds access chains (#3182)
- Fuzzer pass to add equation instructions (#3202)
- Add swap commutable operands transformation (#3205)
- Add fuzzer pass to permute function parameters (#3212)
- Allow OpPhi operand to be replaced with a composite synonym (#3221)
- Linker
v2020.1 2020-02-03
- General:
- Add support for SPV_KHR_non_semantic_info (#3110)
- Support OpenCL.DebugInfo.100 extended instruction set (#3080)
- Added support for Vulkan 1.2
- Add API function to better handle getting the necessary environment (#3142)
- Clarify mapping of target env to SPIR-V version (#3150)
- Implement constant folding for many transcendentals (#3166)
- Optimizer
- Change default version for CreatInstBindlessCheckPass to 2 (#3096, #3119)
- Better handling of OpLine on merge blocks (#3130)
- Use placeholder switch instead of placeholder loop in MergeReturn pass. (#3151)
- Handle TimeAMD in AmdExtensionToKhrPass. (#3168)
- Validator
- Fix structured exit validation (#3141)
- Reduce
- Fuzz
- Fuzzer pass to merge blocks (#3097)
- Transformation to add a new function to a module (#3114)
- Add fuzzer pass to perform module donation (#3117)
- Fuzzer passes to create and branch to new dead blocks (#3135)
- Fuzzer pass to add composite types (#3171)
- Linker:
- Remove names and decorations of imported symbols (#3081)
v2019.5 2019-12-11
- General:
- Export SPIRV-Tools targets on installation
- SPIRV-Tools support for SPIR-V 1.5 (#2865)
- Add WebGPU SPIR-V Assembler in JavaScript. (#2876)
- Add Bazel build configuration. (#2891)
- Add support for building with emscripten (#2948)
- Update SPIR-V binary header test for SPIR-V 1.5 (#2967)
- Add fuzzer for spirv-as call path (#2976)
- Improved CMake install step. (#2963)
- Add fuzzer for spirv-dis call path (#2977)
- Ensure timestamp does not vary with timezone. (#2982)
- Add a vscode extension for SPIR-V disassembly files (#2987)
- Add iOS as a supported platform (#3001)
- utils/vscode: Add SPIR-V language server support
- Respect CMAKE_INSTALL_LIBDIR in installed CMake files (#3054)
- Permit the debug instructions in WebGPU SPIR-V (#3063)
- Add support for Fuchsia. (#3062)
- Optimizer
- Add descriptor array scalar replacement (#2742)
- Add pass to wrap OpKill in a function call (#2790)
- Fold FMix during constant folding. (#2818)
- Add pass to replace AMD shader ballot extension (#2811)
- Add pass to make Float32 operation relax precision (#2808)
- Add pass to make relax precision operation Float16 (#2808)
- Add pass to replace uses of 3 AMD extensions (#2814)
- Fold Min, Max, and Clamp instructions. (#2836)
- Better handling of OpKill in continues (#2842,#2922,#2933)
- Enable OpTypeCooperativeMatrix specialization (#2927)
- Support constant-folding UConvert and SConvert (#2960)
- Update Offset to ConstOffset bitmask if operand is constant. (#3024)
- Improve RegisterSizePasses (#3059)
- Folding: perform add and sub on mismatched integer types (#3084)
- Graphics robust access: use signed clamp (#3073)
Fixes:
- Instrument: Fix version 2 output record write for tess eval shaders. (#2782)
- Instrument: Add support for Buffer Device Address extension (#2792)
- Fix check for changed binary in API call. (#2798)
- For WebGPU<->Vulkan optimization, set correct execution environment (#2834)
- Handle OpConstantNull in copy-prop-arrays. (#2870)
- Use OpReturn* in wrap-opkill (#2886)
- Validator
- Add generic builtin validation of target (#2843)
- Extra resource interface validation (#2864)
- Adding valilidation checks for OpEntryPoint duplicate names and execution mode (#2862)
- Relaxed bitcast with pointers (#2878)
- Validate physical storage buffer restrictions (#2930)
- Add SPV_KHR_shader_clock validation (#2879, #3013)
- Validate that selections are structured (#2962)
- Disallow use of OpCompositeExtract/OpCompositeInsert with no indices (#2980)
- Check that derivatives operate on 32-bit values (#2983)
- Validate array stride does not cause overlap (#3028)
- Validate nested constructs (#3068)
Fixes:
- Fix validation of constant matrices (#2794)
- Update "remquor" validation
- Only allow previously declared forward refs in structs (#2920)
- Reduce
- Remove relaxed precision decorations (#2797)
- Reduce/fuzz: improve command line args (#2932)
- Improve remove unref instr pass (#2945)
Fixes:
- Fuzz
- Fix add-dead-break and add-dead-continue passes to respect dominance (#2838)
- Add fuzzer pass to copy objects (#2853)
- Add fuzzer pass to replace ids with synonyms (#2857)
- Allow validation during spirv-fuzz replay (#2873)
- Employ the "swarm testing" idea in spirv-fuzz (#2890)
- reduce/fuzz: improve command line args (#2932)
- option to convert shader into a form that renders red (#2934)
- Add fuzzer pass to change selection controls (#2944)
- add transformation and pass to construct composites (#2941)
- Add fuzzer pass to change loop controls (#2949)
- Add fuzzer pass to change function controls (#2951)
- Add fuzzer pass to add NoContraction decorations (#2950)
- Add missing functionality for matrix composites (#2974)
- Fuzzer pass to adjust memory access operands (#2968)
- Transformation to extract from a composite object (#2991)
- Vector shuffle transformation (#3015)
- Improve debugging facilities (#3074)
- Function outlining fuzzer pass (#3078)
v2019.4 2019-08-08
- General:
- Memory model support for SPIR-V 1.4
- Add new spirv-fuzz tool
- Add option for base branch in check_code_format.sh
- Removed MarkV and Stats code. (#2576)
- Instrument: Add version 2 of record formats (#2630)
- Linker: Better type comparison for OpTypeArray and OpTypeForwardPointer (#2580)
- Optimizer
- Bindless Validation: Instrument descriptor-based loads and stores (#2583)
- Better folding for OpSpecConstantOp (#2585, #2614)
- Add in individual flags for Vulkan <-> WebGPU passes (#2615)
- Handle nested breaks from switches. (#2624)
- Optimizer: Handle array type with OpSpecConstantOp length (#2652)
- Perform merge return with single return in loop. (#2714)
- Add --preserve-bindings and --preserve-spec-constants (#2693)
- Remove Common Uniform Elimination Pass (#2731)
- Allow ray tracing shaders in inst bindle check pass. (#2733)
- Add pass to inject code for robust-buffer-access semantics (#2771)
- Treat access chain indexes as signed in SROA (#2776)
- Handle RelaxedPrecision in SROA (#2788)
- Add descriptor array scalar replacement (#2742)
Fixes:
- Handle decorations better in some optimizations (#2716)
- Change the order branches are simplified in dead branch elim (#2728)
- Fix bug in merge return (#2734)
- SSA rewriter: Don't use trivial phis (#2757)
- Record correct dominators in merge return (#2760)
- Process OpDecorateId in ADCE (#2761)
- Fix check for unreachable blocks in merge-return (#2762)
- Handle out-of-bounds scalar replacements. (#2767)
- Don't move debug or decorations when folding (#2772)
- Protect against out-of-bounds references when folding OpCompositeExtract (#2774)
- Validator
- Validate loop merge (#2579)
- Validate construct exits (#2459)
- Validate OpenCL memory and addressing model environment rules (#2589)
- Validate OpenCL environment rules for OpTypeImage (#2606)
- Allow breaks to switch merge from nested construct (#2604)
- Validate OpenCL environment rules for OpImageWrite (#2619)
- Allow arrays of out per-primitive builtins for mesh shaders (#2617)
- Validate OpenCL rules for ImageRead and OpImageSampleExplicitLod (#2643)
- Add validation for SPV_EXT_fragment_shader_interlock (#2650)
- Add builtin validation for SPV_NV_shader_sm_builtins (#2656)
- Add validation for Subgroup builtins (#2637)
- Validate variable initializer type (#2668)
- Disallow stores to UBOs (#2651)A
- Validate Volatile memory semantics bit (#2672)
- Basic validation for Component decorations (#2679)
- Validate that in OpenGL env block variables have Binding (#2685)
- Validate usage of 8- and 16-bit types with only storage capabilities (#2704)
- Add validation for SPV_EXT_demote_to_helper_invocation (#2707)
- Extra small storage validation (#2732)
- For Vulkan, disallow structures containing opaque types (#2546)
- Validate storage class OpenCL environment rules for atomics (#2750)
- Update OpControlBarriers rules for WebGPU (#2769)
- Update OpMemoryBarriers rules for WebGPU (#2775)
- Update WebGPU validation rules of OpAtomic*s (#2777)
Fixes:
- Disallow merge targeting block with OpLoopMerge (#2610)
- Update vloadn and vstoren validation to match the OpenCL Extended
Instruction Set Specification (#2599)
- Update memory scope rules for WebGPU (#2725)
- Allow LOD ops in compute shaders with derivative group execution modes (#2752)
- Reduce
Fixes:
v2019.3 2019-05-14
- General:
- Require Python 3 since Python 2 will out of service soon.
- Add a continuous test that does memory checks using the address sanitizer.
- Fix the build files so the SPIRV_USE_SANITIZER=address build works.
- Packaging top of tree build artifacts again.
- Added support for SPIR-V 1.4. (#2550)
- Optimizer
- Remove duplicates from list of interface IDs in OpEntryPoint instruction (#2449)
- Bindless Validation: Descriptor Initialization Check (#2419)
- Add option to validate after each pass (#2462)
- Add legalization pass to fix mismatched pointer (#2430, #2535)
- Add error messages when the input contains unknown instructions. (#2487)
- Add pass to convert from WebGPU Spir-V to Vulkan Spir-V and back. (#2495)
Fixes:
- #2412: Dead memeber elimination should not change input and output variables.
- #2405: Fix OpDot folding of half float vectors.
- #2391: Dead branch elim should not fold away back edges.
- #2441: Removing decorations when doing constant propagation.
- #2455: Maintain inst to block mapping in merge return.
- #2453: Fix merge return in the face of breaks.
- #2456: Handle dead infinite loops in DCE.
- #2458: Handle variable pointer in some optimizations.
- #2452: Fix dead branch elimination to handle unreachable blocks better.
- #2528: Fix undefined bit shift in sroa.
- #2539: Change implementation of post order CFG traversal.
- Validator
- Add validation of storage classes for WebGPU (#2446)
- Add validation for ExecutionMode in WebGPU (#2443)
- Implement WebGPU specific CFG validation (#2386)
- Allow NonWritable to target struct members. (#2420)
- Allow storage type mismatch for parameter in relaxed addressing mode.
- Allow non memory objects as parameter in relaxed addressing mode.
- Disallow nested Blocks and buffer blocks (#2410).
- Add validation for SPV_NV_cooperative_matrix (#2404)
- Add --strip-atomic-counter-memory (#2413)
- Check OpSampledImage is only passed into valid instructions (#2467)
- Handle function decls in Structured CFG analysis (#2474)
- Validate that OpUnreacahble is not statically reachable (#2473)
- Add pass to generate needed initializers for WebGPU (#2481)
- Allow images without format for OpenCL. (#2470)
- Remove unreachable block validation (#2525)
- Reduce runtime of array layout checks (#2534)
- Add validation specific to OpExecutionModeId (#2536)
- Validate sign of int types. (#2549)
- VK_KHR_uniform_buffer_standard_layout validation (#2562)
Fixes:
- #2439: Add missing DepthGreater case to Fragment only check.
- #2168: Disallow BufferBlock on StorageBuffer variables for Vulkan.
- #2408: Restrict and Aliased decorations cannot be applied to the same id.
- #2447: Improve function call parameter check.
- Reduce
- Add Pass to remove unreferenced blocks. (#2398)
- Allows passing options to the validator. (#2401)
- Improve reducer algorithm and other changes (#2472)
- Add Pass to remove selections (#2485)
- Add passes to simplify branches (#2507)
Fixes:
- #2478: fix loop to selection pass for loops with combined header/continue block
v2019.2 2019-02-20
- General:
- Support SPV_EXT_physical_storage_buffer
- A number of memory leak have been fixed.
- Removed use of deprecated Google test macro:
- Changed the BUILD.gn to only build tests in Chromium.
- Optimizer
- Upgrade memory model improvments for modf and frexp.
- Add a new pass to move loads closer to their uses: code sinking.
- Invalidating the type manager now invalidates the constnat manager.
- Expand instrumentation pass for bindless bounds checking to runtime-sized descriptor arrays.
- Add a new pass that removes members from structs that are not used: dead member elimination.
Fixes:
- #2292: Remove undefined behaviour when folding bit shifts.
- #2294: Fixes for instrumentation code.
- #2293: Fix overflow when folding -INT_MIN.
- #2374: Don't merge unreachable blocks when merging blocks.
- Validator
- Support SPV_KHR_no_integer_wrap and related decorations.
- Validate Vulkan rules for OpTypeRuntimeArray.
- Validate NonWritable decoration.
- Many WebGPU specific validation rules were added.
- Validate variable pointer related function call rules.
- Better error messages.
Fixes:
- #2307: Check forwards references in OpTypeArray.
- #2315, #2303: Fixed the layout check for relaxed layout.
- #1628: Emit an error when an OpSwitch target is not an OpLabel.
- Reduce
- Added more documentation for spirv-reduce.
- Add ability to remove OpPhi instructions.
- Add ability to merge two basic blocks.
- Add ability to remove unused functions and unused basic blocks.
Fixes:
v2019.1 2019-01-07
- General:
- Created a new tool called spirv-reduce.
- Add cmake option to turn off SPIRV_TIMER_ENABLED (#2103)
- New optimization pass to update the memory model from GLSL450 to VulkanKHR.
- Recognize OpTypeAccelerationStructureNV as a type instruction and ray tracing storage classes.
- Fix GCC8 build.
- Add --target-env flag to spirv-opt.
- Add --webgpu-mode flag to run optimizations for webgpu.
- The output disassembled line number stead of byte offset in validation errors. (#2091)
- Optimizer
- Added the instrumentation passes for bindless validation.
- Added passes to help preserve OpLine information (#2027)
- Add basic support for EXT_fragment_invocation_density (#2100)
- Fix invalid OpPhi generated by merge-return. (#2172)
- Constant and type manager have been turned into analysies. (#2251)
Fixes:
- #2018: Don't inline functions with a return in a structured CFG contstruct.
- #2047: Fix bug in folding when volatile stores are present.
- #2053: Fix check for when folding floating pointer values is allowed.
- #2130: Don't inline recursive functions.
- #2202: Handle multiple edges between two basic blocks in SSA-rewriter.
- #2205: Don't unswitch a latch condition during loop unswitch.
- #2245: Don't fold branch in loop unswitch. Run dead branch elimination to fold them.
- #2204: Fix eliminate common uniform to place OpPhi instructions correctly.
- #2247: Fix type mismatches caused by scalar replacement.
- #2248: Fix missing OpPhi after merge return.
- #2211: After merge return, fix invalid continue target.
- #2210: Fix loop invariant code motion to not place code between merge instruction and branch.
- #2258: Handle CompositeInsert with no indices in VDCE.
- #2261: Have replace load size handle extact with no index.
- Validator
- Changed the naming convention of outputing ids with names in diagnostic messages.
- Added validation rules for UniformConstant variables in Vulkan.
- #1949: Validate uniform variable type in Vulkan
- Ensure for OpVariable that result type and storage class operand agree (#2052)
- Validator: Support VK_EXT_scalar_block_layout
- Added Vulkan memory model semantics validation
- Added validation checkes spefic to WebGPU environment.
- Add support for VK_EXT_Transform_feedback capabilities (#2088)
- Add validation for OpArrayLength. (#2117)
- Ensure that function parameter's type is not void (#2118)
- Validate pointer variables (#2111)
- Add check for QueueFamilyKHMR memory scope (#2144)
- Validate PushConstants annotation and type (#2140)
- Allow Float16/Int8 for Vulkan 1.0 (#2153)
- Check binding annotations in resource variables (#2151, #2167)
- Validate OpForwardPointer (#2156)
- Validate operation for OpSpecConstantOp (#2260)
Fixes:
- #2049: Allow InstanceId for NV ray tracing
- Reduce
- Initial commit wit a few passes to reduce test cases.
- Validation is run after each reduction step.
Fixes:
v2018.6 2018-11-07
- General:
- Added support for the Nvidia Turing and ray tracing extensions.
- Make C++11 the CXX standard in CMakeLists.txt.
- Enabled a parallel build for MSVC.
- Enable pre-compiled headers for MSVC.
- Added a code of conduct.
- EFFCEE and RE2 are now required when build the tests.
- Optimizer
- Unrolling loops marked for unrolling in the legalization passes.
- Improved the compile time of loop unrolling.
- Changee merge-return to create a placeholder loop around the function.
- Small improvement to merge-blocks to allow it to merge more often.
- Enforce an upper bound for the ids, and add option to set it.
- #1966: Report error if there are unreachable block before running merge return
Fixes:
- #1917: Allow 0 (meaning unlimited) as a parameter to --scalar-replacement
- #1915: Improve handling of group decorations.
- #1942: Fix incorrect uses of the constant manager. Avoids type mismatches in generated code.
- #1997: Fix dead branch elimination when there is a loop in folded selection.
- #1991: Fixes legality check in if-conversion.
- #1987: Add nullptr check to array copy propagation.
- #1984: Better handling of OpUnreachable in ADCE.
- #1983: Run merge return on reachable functions only.
- #1956: Handled atomic operations in ADCE.
- #1963: Fold integer divisions by 0 to 0.
- #2019: Handle MemberDecorateStringGOOGLE in ADCE and strip reflect.
- Validator
- Added validation for OpGroupNonUniformBallotBitCount.
- Added validation for the Vulkan memory model.
- Added support for VK_KHR_shader_atddomic_int64.
- Added validation for execution modes.
- Added validation for runtime array layouts.
- Added validation for 8-bit storage.
- Added validation of OpPhi instructions with pointer result type.
- Added checks for the Vulkan memory model.
- Validate MakeTexelAvailableKHR and MakeTexelVisibleKHR
- Allow atomic function pointer for OpenCL.
- FPRounding mode checks were implemented.
- Added validation for the id bound with an option to set the max id bound.
Fixes:
- #1882: Improve the validation of decorations to reduce memory usage.
- #1891: Fix an potential infinite loop in dead-branch-elimination.
- #1405: Validate the storage class of boolean objects.
- #1880: Identify arrays of type void as invalid.
- #487: Validate OpImageTexelPointer.
- #1922: Validate OpPhi instructions are at the start of a block correctly.
- #1923: Validate function scope variable are at the start of the entry block.
v2018.5 2018-09-07
- General:
- Support SPV_KHR_vulkan_memory_model
- Update Dim capabilities, to match SPIR-V 1.3 Rev 4
- Automated build bots no run tests for the VS2013 case
- Support Chromium GN build
- Use Kokoro bots:
- Disable Travis-CI bots
- Disable AppVeyor VisualStudio Release builds. Keep VS 2017 Debug build
- Don't check export symbols on OSX (Darwin): some installations don't have 'objdump'
- Reorganize source files and namespaces
- Fixes for ClangTidy, and whitespace (passes 'git cl presumit --all -uf')
- Fix unused param compile warnings/errors when Effcee not present
- Avoid including time headers when timer functionality is disabled
- Avoid too-stringent warnings flags for Clang on Windows
- Internal refactoring
- Add hooks for automated fuzzing
- Add testing of command line executables
- #1688: Use binary mode on stdin; fixes "spirv-dis <foo.spv" on Windows
- Optimizer
- The optimizer validates the module before it begins
- Add API to register passes by string name
- Fold a vector shuffle feeding a vector shuffle
- Add -combine-access-chains transform
- Refactor how IRContext is handled by passes
- Improve bookkeeping for instruction result type and result id
- Fix over-duplication of decorations
- Fix handling of exits from selections in dead-branch elimination, and dead code
elimination.
- Fix handling of certain kinds of flow control in merge-return
Fixes:
- #1721: Fix size bug when folding vector shuffles
- #1722: Fix size infinite loop when folding vector shuffles
- #1724: Fix finding a constant of a specific type
- #1727: Dead branch elim: Reorder blocks if needed to satisfy dominance rule
- #1729: Handle VariablePointers cases in various optimizations
- #1731: Fix vector shuffle with literal id indicating undef value
- #1736: Fix handling of decorations and phis in merge-return
- #1787: Fix handling of decorations related to access chains
- #1865: Avoid leaking memory for SPIR-V constant values
- Validator
- Improve error messages
- Avoid platform-dependent traversal ordering, to ensure consistent messages
- Use libspirv::Instruction where possible
- Add option to skip all block layout checks
- Validate all type IDs
- Validate uses of OpFunction
- Validate uses of OpTypeFunction
- Disallow a struct containing its own type https://crbug.com/874372
- #1685: Vulkan permits non-monotonic offsets for block members
- #1697: Enforce block layout rules even when using relaxed block layout option
- #1719: Fix line number for vector shuffle valiation error
- #1789: Avoid assertion failure when validating some functions
- #1800: Fix validation of OpCopyMemorySized
- #1822: Stop enforcing struct member offset montonicity
- #1831: Disallow void members in structs
v2018.4 2018-07-08
- General:
- Support SPV_KHR_8bit_storage
- Add gclient and presubmit configurations
- Enable Kokoro build bots (#1625)
- Group tests into fewer executables, reduces load on CI
- Port test script to Python 3
- Symbol export tests respect SPIRV_SKIP_TESTS
- #1596: Operand lookup succeeds if enabled by a capability
- #1624: Instruction lookup succeeds if enabled by a capability
- Refactoring namespaces:
- #1678: Change libspirv to spvtools
- Code in source/utils moved into spvtools::utils
- Code in source/comp moved into spvtools::comp
- Optimizer:
- Remove insert-extract-elim pass. Use simplification pass instead.
- Preserve instruction-to-block mapping in most passes, to reduce runtime.
- Small vector optimization for operands
- Add pass to move Private variables to Function. Increase opportunity to optimize.
- Fixes:
#1120: Check static uses of entry point interfaces
#1372: Avoid merging some structs, to preserve names for reflection
#1577: Scalar replacement uses only undecorated types.
#1578: Fix handling of forward-pointer types, and types embedding pointers
to themselves.
#1591: Inliner: Callee variable with initializer should have a store at the call site.
#1634: Fix crash: Use type id in vector type lookup
#1649: Fix assert in compact-ids pass
Fix constant folder: ensure it uses the right type
#1659: Folding rules added to IRContext. Avoids leak.
- Validator
- Add work-in-progress WebGPU environment. Disallows OpUndef
- #670, #1581: Improve error messages; disassemble instruction
- #491: Check structured switches
- #937: Check layout rules for Block and BufferBlock in Uniform, StorageBuffer, PushConstant
- #1281: Check invalid branches into structured constructs
- #1522: Disallow array-of-arrays with DescriptorSets
- #1577: Allow duplicate pointer types.
- #1581: Better messages: output ID names along with numbers in more cases.
- #1597: Check Vulkan 1.1 capabilities
- #1618: Check invalid exit from structured case construct
- #1622: Run IdPass before DataRulesPass
- #1632: Reduce test time by artificially lowering limits in limit test
- #1638: Block-decorated structs member order must respect offset order
- #1657: Improve CFG validation diagnostics
- Khronos SPIR-V #337: GLSL.std.450 Refract instruction Eta param can be any float scalar.
- #1606: PushConstant Blocks follow storage-buffer layout rules
- #1664: Check layout of StorageBuffer variables with Block decoration, using storage buffer
rules
- #1666: Layout validation should permit {vec3; float} packing
- #1637, #1668: Layout validation uses RowMajor, ArrayStride, MatrixStride properly
- Linker
- Avoid buffer overrun when creating OpModuleProcessed
v2018.3 2018-05-25
- General:
- Support SPV_EXT_descriptor_indexing
- Support SPV_GOOGLE_decorate_string
- Support SPV_GOOGLE_hlsl_functionality1
- Support SPV_NV_shader_subgroup_partitioned
- Use "unified1" grammar from SPIRV-Headers
- Simplify support for new extensions. Assembler, disassembler, and simple validation
support is automatic if new tokens are introduced with appropriate extension
attributes in the "unified1" SPIR-V core grammar.
- Disassembler: Emit more digits on floating point, to reliably reproduce all
significand bits. (Use std::max_digits10 instead of std::digits10)
- Fix compilation for old XCode versions: Explicit construction required for std::set.
- Optimizer:
- Add --strip-reflect
- Add --time-report
- Add --loop-fission
- Add lop fusion.
- Add loop peeling pass and internal utility.
- Improve optimizer runtime.
- Merge-return now works with structured control flow.
- New (faster) SSA rewriter to convert local loads and stores to SSA IDs and phis.
Can replace load/store elimination passes.
- Fix instruction folding case: insertion that feeds and extract, when the extract
remains.
- Fold OpDot.
- Fold OpFNegate.
- Fold multply and divide of same value.
- Fold FClamp feeding a compare.
- Fold OpLoad feeding an extract, to reduce excessive copying. (#1547)
- Fold Fmix feeding an extract.
- Use simplification pass instead of insert-extract elimination.
- Constant fold OpVectorTimesScalar.
- Copy propagate arrays, in simple cases.
- Aggressive dead code elimination: Can remove more instructions, e.g. derivatives.
- Aggressive dead code elimination: Remove Workgroup variables that are written but not read.
- Better handling of OpImageTexelPointer
- Initial utilities for scalar evolution.
- Add Vector dead code elimination.
- Each pass can only run once.
- Allow code hosting in if-conversion.
- Add external interface for adding a PassToken, so external code can make their own
passes.
- Fixes:
#1404: Don't optimize away the compute compute workgroup size constant.
#1407: Remove a bad assertion
#1456: Fix bug in SSA rewriter related to variables updated in loops.
#1487: Fix long runtime in Dead insertion elimination: Don't revist select phi nodes.
#1492: Aggressive dead code elimination can remove OpDecorateStringGOOGLE.
#1527: Fix inlining of functions having OpKill and OpUnreachable.
#1559: Fix assert failure in reduce-load-size pass.
#1556: Aggressive dead code elimination: Fix handling of OpCopyMemory.
- Validator:
- Check Vulkan built-in variables
- Check Vulkan-specific atomic result type rule.
- Relax control barrier check for SPIR-V 1.3. Fixes #1427
- Check OpPhi.
- Check OpMemoryModel.
- Stop checking sizes derived from spec-constants.
- Re-enable checks for OpUConvert.
- Vulkan: Fix check for PrimitiveId: Permit as Input in fragment shader.
- Validate binary version for the given target environment.
- Add tests for OpBranch checks.
- Vulkan 1.1: Check scope for non-uniform subgroup operations.
- Fix checks for SPV_AMD_gpu_shader_int16.
- Fix logical layout check for OpDecorateId.
- Fix checks for ViewportIndex & Layer for Vulkan and SPV_EXT_shader_viewport_index_layer.
- Fixes:
#1470: Vulkan: Don't restrict WorkgroupSize to Input storage class.
#1469: Vulkan: Permit Subgroup memory scope for Vulkan 1.1.
#1472: Per-vertex variable validation fixes.
#1483: Valdiate barrier execution scopes for Vulkan 1.1.
- Fixes:
#898: Linker properly removes FuncParamAttr from imported symbols.
#924, #1174: Fix handling of decoration groups in optimizer, linker.
v2018.2 2018-03-07
- General:
- Support SPIR-V 1.3 and Vulkan 1.1.
- Default target environment is now SPIR-V 1.3. For command-line tools,
use the --target-env option to override the default. Examples:
# Generate a SPIR-V 1.0 binary instead of SPIR-V 1.3
spirv-as --target-env spv1.0 a.spvasm -o a.spv
spirv-as --target-env vulkan1.0 a.spvasm -o a.spv
# Validate as Vulkan 1.0
spirv-val --target-env vulkan1.0 a.spv
- Support SPV_GOOGLE_decorate_string and SPV_GOOGLE_hlsl_functionality1
- Fixes:
- Fix Android.mk build. Compilation was failing due to missing definitions of
SpvCapabilityFloat16ImageAMD and other enumerated values.
- Optimizer: Avoid generating duplicate names when merging types.
- #1375: Validator: SPV_AMD_gpu_shaer_half_float implicitly allows declaration
of the 16-bit floating point type.
- #1376: Optimizer: Avoid folding half-precision float.
v2018.1 2018-03-02
- General:
- Support Visual Studio 2013 again. (Continue support for VS 2015 and VS 2017.)
- Support building SPIRV-Tools as a shared library.
- Improve the HLSL legalization optimization recipe. #1311
- Optimizer:
- General speedups.
- Remove generic dead code elimination functionality from transforms:
--eliminate-local-single-block
--eliminate-local-single-store
--eliminate-local-multi-store
To recover the previous behaviour, a recipe using those transforms should now
also invoke the --eliminate-dead-code-aggressive transform.
- Improve folding, including coverage for floating point, OpSelect, and arithmetic
with non-trivial constant operands.
- Add loop-invariant code motion pass.
- Add loop-unrolling pass, for honouring unroll hits.
- Add loop-unswitch pass.
- Add instruction simplification pass.
- Aggressive dead code elimination: Understands capability hierarchy when finding
instructions it can eliminate (combinators). (PR #1268)
- CCP can now fold floating point arithmetic. #1311
- Validator:
- Validate barrier instructions.
- Check Vulkan-specific rules for atomics.
- Check Vulkan prohibition of Location or Component decorations on BuiltIn variables.
- Linker:
- Add --verify-ids option
- Add option to allow a resulting module to be partially linked.
- Handle OpModuleProcessed (instructions in SPIR-V layout section 7c)
- Fixes:
- #1265: Optimizer: Fix use-after free bug in if-conversion. (Fix object lifecycle bug
in type manager.)
- #1282: Fix new warnings found by GCC 8.0.1.
- #1285: Optimizer: Fix random failures during inlining. (Dangling references in DefUseManager)
- #1295: Optimizer: Fix incorrect handling of Phi nodes in CCP.
- #1300: Fix CCP: avoid bad CCP transitions and unsettled values.
- #1304: Avoid static-duration variables of class type (with constructors).
- #1323: Fix folding of an insert composite feeding a composite extract.
- #1339: Fix CCP: Handle OpConstantNull boolean values as conditions.
- #1341: DCEInst: Keep atomic instructions (and some others with side effects).
- #1354: Don't fold integer division.
- #1357: Support OpConstantNull in folding.
- #1361: CCP: Fix handling of non-constant module-scope values
v2018.0 2018-02-02
- General
- VisualStudio 2013 is no longer supported. VisualStudio 2015 is supported.
- Use "include/unified1" directory from SPIRV-Headers. Requires recent SPIRV-Headers source.
- Disassembler: spirv-dis adds --color option to force color disassembly.
- Optimizer:
- Add pass to eliminate dead insertions.
- Aggressive dead code elimination now removes OpSwitch constructs.
- Block merging occurs in more cases.
- Add driver workaround transform: replace OpUnreachable with harmless branch to merge.
- Improve instruction folding framework.
- Add loop analysis.
- Add scalar replacement of aggregates to size-optimization recipe.
- Add pass to replace instructions invalid for a shader stage, with a harmless value.
This changes the semantics of the program! Not for general use!
- Rearragne and add passes to performance-optimization recipe, to produce better results.
- Validator:
- Validate OpenCL extended instructions.
- Shaders can't perform atomics on floats.
- Validate memory semantics values in atomics.
- Validate instruction-adjacency constraints, e.g. OpPhi predecessors, merge instructions
immediately precede branches.
- Fixes:
- PR 1198: Optimizer: Fix CCP in presence of matrix constants.
- #1199: Optimizer: Fix CCP: don't propagate spec constants.
- #1203: Optimizer: Fix common uniform elim bug introduced by refactoring.
- #1210: Optimizer: Aggressive dead code elimination: Fix 'break' identification.
- #1212: Optimizer: Aggressive dead code elimination: Was skipping too many instructions.
- #1214: Optimizer: Aggressive dead code elimination: Fix infinite loop.
- #1228: Optimizer: Fix CCP: Handling of varying Phi nodes; was resulting in infinite loop.
- #1245: Optimizer: Dead branch elimination: Avoid a null pointer dereference.
- #1250: Optimizer: Dead branch elimination: Avoid spuriously reporting a change.
v2017.3 2018-01-12
- General:
- Support DebugInfo extended instruction set, targeted at OpenCL environments.
See the SPIR-V Registry.
- Generate a SPIRV-Tools.pc file for pkg-config.
- Optimizer:
- Progress for legalization of code generated from HLSL (issue #1118):
- Add --legalize-hlsl option to run transforms used to transform intermediate
code generated by HLSL to SPIR-V for Vulkan compilers. Those compilers
normally run these transforms automatically. This option is used for developing
those transforms.
- Add Private-to-Function variable conversion for modules with logical
addressing.
- Add --ccp: SSA Conditional Constant Propagation (CCP)
- Add --print-all to show disassembly for each optimization pass.
- Internal: Add loop descriptors and post-order tree iterator.
- Generalized dead branch elimination
- Aggressive dead code elimination (ADCE) now removes dead functions and
module-scope variables.
- Vector extract/insert elimination now optimizes through some cases of
VectorShuffle, and GLSL.std.450 Mix extended instruction.
- Validator:
- Add validation for GLSL.std.450 extended instruction set.
- Check out of bounds composite accesses, where that's statically computable.
Fixes #1112.
- Check upper bits of literal numbers that aren't a multiple of 32-bits wide.
- More validation of primitive instructions
- Add optional "relaxed" checking logical addressing mode to permit some
cases of pointer-to-pointer. Contributes to HLSL legalization (issue #1118).
- Fixes:
#1100: Validator: Image operand Sample can be used with OpImageSparseFetch,
OpImageSparseRead.
#1108: Remove duplicates transform was incorrectly removing non-duplicate
decorations.
#1111: Optimizer's type manager could reference deleted memory.
#1112: Fix decoration equality check, e.g. it is now symmetric.
#1129: Validator now disallows Dim=SupbassData for OpImageSparseRead.
#1143: Fix CCP: Was generating incorrect code for loops.
#1153: Fix CCP crash.
#1154: Optimizer's internal instruction-to-block mappings were sometimes
inconsistent.
#1159: Fix CCP infinite loop.
#1168: Fix dead branch elimination intermittently generating incorrect code.
Fixes https://github.com/KhronosGroup/glslang/issues/1205
#1186: Fix validation of PackDouble2x32 and UnpackDouble2x32
v2017.2 2017-12-15
- General:
- Support OpenCL 1.2, 2.0 target environments, including embedded profiles
- Add CONTRIBUTING.md
- Fix exit status code for spirv-link
- Disassember: Enable emitting ANSI colour codes to a string
- Library avoids polluting global namespace. The libraries can export C and C++
symbols starting with "spv", or in a C++ namespace. Add a test for this.
- Linux release builds include debug information, for easier profiling
- Build bots no longer test VisualStudio 2013
- Testing dependency RE2 requires VisualStudio 2015 or later
- Build bots check code formatting
- Optimizer:
- Add --skip-validation to spirv-opt
- Add dominance tree analysis
- Add generic value propagation engine
- Add global redundancy elimination within a function
- Add scalar replacement of function-scope variables of composite type
- Aggressive dead code elimination: Remove empty loops
- Killing an instruction notifies the IRContext
- IRContext::KillInst deletes the instruction
- Move CFG analysis to IRContext
- Add constant manager
- Fix: Don't consider derivative instructions as combinators.
- Fix: Don't delete an instruction twice in local dead-code-elimination
- Fix: Don't consider derivative instructions as combinators.
- Validator:
- Finish checking of image instructions (Section 3.32.10)
- Check sparse image instructions
- Check OpTypeImage, OpTypeSampleImage
- Check composite instructions (Section 3.32.12)
- Check atomic instructions (Section 3.32.18)
- Check OpEmitStreamVertex, OpEndStreamPrimitive instructions
- Re-enable validation of OpCopyObject
- OpKill, image ImplicitLod and QueryLod instructions can only be used in Fragment
shaders.
- Fixes for image instruction validation:
- Lod image operand only usable with ExplicitLod and OpImageFetch
- ExplicitLod Lod image operand must be float scalar
- OpImageFectch Lod image operand must be int scalar
- OpImageGather component operand must be 32-bits (integer scalar)
- OpImageQuerySizeLod Lod must be integer scalar
- Fixes:
#622: Remove names and decorations when inlining
#989: Aggressive dead code elim: Don't optimize away live breaks from a loop
#991: Fix validation of SPV_AMD_shader_ballot
#1004: Use after free of an instruction, in remove-duplicates transform
#1007: OpImageRead not required to return 4-component vector
#1009: OpImageRead can return scalar int/float types
#1011: OpImageWrite should allow scalar int/float texel types
#1012: Fix validat Dref type check
#1017: Load-store elimination considers variable initializations
#1034: Fix Windows debug build: operator< should be a weak ordering
#1083: Inlining: Set parent (function) for each inlined basic block.