* add the IntegerLiteralInst + the Builder function to create it
* add Value.nonDebugUses
* add a general utility Sequence.isEmpty
* add PassContext.replaceAllUses
* add a function to erase all `debug_value` uses in PassContext.erase
* ApplySite.arguments
* BasicBlock != operator
* some Function argument related properties
* Operand.isTypeDependent
* Type.isTrivial
* bridging of raw_ostream::write
Use MemoryLayout.stride instead pf MemoryLayout.size. This fixes a buffer overflow bug in case of unaligned elements.
Plus some other bug fixes for stacklists which get larger than a single slab.
Also, add the `append(contentsOf:)` method.
* unify FunctionPassContext and InstructionPassContext
* add a modification API: PassContext.setOperand
* automatic invalidation notifications when the SIL is modified
And add `UnaryInstruction` which adds a property `operand` to all unary instructions.
This replaces the existing single-operand properties, which simplifies the code.
StackList is a very efficient data structure for worklist type things.
This is a port of the C++ utility with the same name.
Compared to Array, it does not require any memory allocations.
This is the initial version of a buildable SIL definition in libswift.
It defines an initial set of SIL classes, like Function, BasicBlock, Instruction, Argument, and a few instruction classes.
The interface between C++ and SIL is a bridging layer, implemented in C.
It contains all the required bridging data structures used to access various SIL data structures.
* add the (still empty) libswift package
* add build support for libswift in CMake
* add libswift to swift-frontend and sil-opt
The build can be controlled with the LIBSWIFT_BUILD_MODE cmake variable: by default it’s “DISABLE”, which means that libswift is not built. If it’s “HOSTTOOLS”, libswift is built with a pre-installed toolchain on the host system.
