Revision history for SPIRV-Tools v2016.7-dev 2017-01-06 - Add SPIR-V 1.2 - OpenCL 2.2 support is now based on SPIR-V 1.2 - Optimizer: Add inlining of all function calls in entry points. - Optimizer: Add flattening of decoration groups. Fixes #602 - Optimizer: Add Id compaction (minimize Id bound). Fixes #624 - Assembler: Add option to preserve numeric ids. Fixes #625 - Add build target spirv-tools-vimsyntax to generate spvasm.vim, a SPIR-V assembly syntax file for Vim. - Version string: Allow overriding of wall clock timestamp with contents of environment variable SOURCE_DATE_EPOCH. - Validator implements relaxed rules for SPV_KHR_16bit_storage. - Fixes: #500: Parameterize validator limit checks #508: Support compilation under CYGWIN #517: Fix validation when continue (or case) contstruct is also the head of a nested control construct. #551: If a merge block is reachable, it must be *strictly* dominated by its header. #548: Validator: Error when the reserved OpImageSparseSampleProj* opcodes are used. #611: spvtools::Optimizer was failing to save the module to the output binary vector when all passes succeded without changes. #629: The inline-entry-points-all optimization could generate invalidly structured code when the inlined function had early returns. v2016.6 2016-12-13 - Published the C++ interface for assembling, disassembling, validation, and optimization. - Support SPV_KHR_shader_draw_parameters in assembler, disassembler, parser. - Validator: - Add validator API accepting raw binary words - Increased coverage: - Checks "Data rules" in Universal Validation Rules, section 2.16.1 - WIP: Universal Limits. - The minimum mandated upper bounds are checked. - TODO: Parameterize the validator to allow larger limits accepted by a more than minimally capable implementation. - OpSampledImage checks - OpConstantComposite checks - Id bound check - Disasssembler: - Generates friendly GLSL-based names for more builtin variables - Generates friendly names for numeric OpConstant values - Vendor tool info extracted from SPIR-V XML registry file. - Fixes issues: #429: Validator: Allow OpTypeForwardPointer and OpTypeStruct to reference undefined IDs #482: Validator: OpVariable initializer can be an ID of a module-scope variable v2016.5 2016-09-16 - Support SPV_KHR_shader_ballot in assembler, disassembler, parser. - Disassembler: Generate friendly names for built-in variables. - Partial fixes: #359: Add Emacs helper for automatically diassembling/assembling a SPIR-V binary on file load/save. - Fixes: #414: Validator: Allow OpUndef for composite constants #415: Validator: Phi can use its own value in some cases. v2016.4 2016-09-01 - Relicensed under Apache 2.0 - Add optimization passes (in API and spirv-opt command) - Fold spec constants defined with OpSpecConstantOp and OpSpecConstantComposite to normal constants with fixed value(s). - Fixes issues: #318: Relicensed under Apache 2.0 v2016.3 2016-08-24 - Add target environment enums for OpenCL 2.1, OpenCL 2.2, OpenGL 4.0, OpenGL 4.1, OpenGL 4.2, OpenGL 4.3, OpenGL 4.5. - Add spirv-cfg, an experimental tool to dump the control flow graph as a GraphiViz "dot" graph - Add optimization pass: Eliminate dead constants. - Add spirv-lesspipe.sh filter utility - Fixes issues: #288: Check def-use dominance rules for OpPhi (variable,parent) operands #339: Allow OpUndef in types-constants-global-vars section, as required by SPIR-V 1.0 Rev7, 1.1 Rev 3. #340: Avoid race on mkdir during build #365: Relax PointSize, ClipDistance, CullDistance capability check in all environments not just Vulkan 1.0. v2016.2 2016-08-05 - Validator is incomplete - Checks ID use block is dominated by definition block - Add optimization passes (in API and spirv-opt command) - Strip debug info instructions - Freeze spec constant to their default values - Allow INotEqual as operation for OpSpecConstantOp - Fixes bugs: #270: validator: crash when continue construct is unreachable #279: validator: infinite loop when analyzing some degenerate control flow graphs #286: validator: don't incorrectly generate def-use error for (variable,parent) parameters to OpPhi #290: disassembler: never generate bare % for an identifier #295: validator: def-use dominance check should ignore unreachable uses #276: validator: allow unreachable continue constructs #297: validator: allow an unreachable block to branch to a reachable merge block v2016.1 2016-07-19 - Fix https://github.com/KhronosGroup/SPIRV-Tools/issues/261 Turn off ClipDistance and CullDistance capability checks for Vulkan. - The disassembler can emit friendly names based on debug info (OpName instructions), and will infer somewhat friendly names for most types. This is turned on by default for the spirv-dis command line tool. - Updated to support SPIR-V 1.1 rev 2 - Input StorageClass, Sampled1D capability, and SampledBuffer capability do not require Shader capability anymore. v2016.0 2016-07-04 - Adds v. versioning, with "-dev" indicating work in progress. The intent is to more easly report and summarize functionality when SPIRV-Tools is incorporated in downstream projects. - Summary of functionality (See the README.md for more): - Supports SPIR-V 1.1 Rev 1 - Supports SPIR-V 1.0 Rev 5 - Supports GLSL std450 extended instructions 1.0 Rev 3 - Supports OpenCL extended instructions 1.0 Rev 2 - Assembler, disassembler are complete - Supports floating point widths of 16, 32, 64 bits - Supports integer widths up to 64 bits - Validator is incomplete - Checks capability requirements in most cases - Checks module layout constraints - Checks ID use-definition ordering constraints, ignoring control flow - Checks some control flow graph rules - Optimizer is introduced, with few available transforms. - Supported on Linux, OSX, Android, Windows - Fixes bugs: - #143: OpenCL pow and pown arguments