Dario Rexin a8d4d57f11 [IRGen] Generate compressed representation of value witnesses (#63813) ...

rdar://105837040

* WIP: Store layout string in type metadata

* WIP: More cases working

* WIP: Layout strings almost working

* Add layout string pointer to struct metadata

* Fetch bytecode layout strings from metadata in runtime

* More efficient bytecode layout

* Add support for interpreted generics in layout strings

* Layout string instantiation, take and more

* Remove duplicate information from layout strings

* Include size of previous object in next objects offset to reduce number of increments at runtime

* Add support for existentials

* Build type layout strings with StructBuilder to support target sizes and metadata pointers

* Add support for resilient types

* Properly cache layout strings in compiler

* Generic resilient types working

* Non-generic resilient types working

* Instantiate resilient type in layout when possible

* Fix a few issues around alignment and signing

* Disable generics, fix static alignment

* Fix MultiPayloadEnum size when no extra tag is necessary

* Fixes after rebase

* Cleanup

* Fix most tests

* Fix objcImplementattion and non-Darwin builds

* Fix BytecodeLayouts on non-Darwin

* Fix Linux build

* Fix sizes in linux tests

* Sign layout string pointers

* Use nullptr instead of debug value

2023-02-24 15:40:28 -08:00

3.8 KiB

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