2 Commits

Author	SHA1	Message	Date
Erik Eckstein	cc68bd98c9	Swift Optimizer: rework pass context types and instruction passes ... * split the `PassContext` into multiple protocols and structs: `Context`, `MutatingContext`, `FunctionPassContext` and `SimplifyContext` * change how instruction passes work: implement the `simplify` function in conformance to `SILCombineSimplifyable` * add a mechanism to add a callback for inserted instructions	2023-01-16 15:11:34 +01:00
Erik Eckstein	81ac311c83	Swift Optimizer: add the DeadEndBlocks utility for finding dead-end blocks. ... Dead-end blocks are blocks from which there is no path to the function exit (`return`, `throw` or unwind). These are blocks which end with an unreachable instruction and blocks from which all paths end in "unreachable" blocks.	2022-10-05 07:37:41 +02:00