Update CHANGES

CHANGES

@@ -1,7 +1,91 @@
 Revision history for SPIRV-Tools
 
-v2020.6 2020-09-24
- - Start SPIRV-Tools v2020.6
+v2020.6-dev 2020-12-02
+ - General
+    CMake: Add SPIRV_TOOLS_BUILD_STATIC flag (#3910)
+ - Disassembler
+    Add some context comments to disassembly. (#3847)
+ - Optimizer
+   - 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