7 Commits

Author	SHA1	Message	Date
Erik Eckstein	7eef54fe15	fix a bug in the ReleaseDevirtualizer pass ... The release-devirtualizer must not run on the same alloc_ref twice. This is a very rare case, but if it happens it's a very bad thing, because it results in a double-free crash. The fix is to detect that a dealloc_ref instruction (although it isn't "releasing"), does a memory deallocation. Found by doing some unrelated experiments.	2022-03-25 14:30:22 +01:00
Erik Eckstein	93f5d9f176	swift SIL: Type.getStructFields -> Type.getNominalFields ... To be able to get class fields as well as struct fields	2022-01-25 11:29:25 +01:00
Max Desiatov	1f53563780	libswift: remove Instruction.mayReadRefCount	2022-01-19 18:51:19 +00:00
Max Desiatov	40e805de11	libswift: simplify ReleaseDevirtualizer.swift	2022-01-19 18:51:19 +00:00
Max Desiatov	d7144c0046	libswift: implement isFieldOnlyNonTrivialField	2022-01-19 18:51:19 +00:00
Max Desiatov	848fa70529	libswift: reimplement Instruction helpers in Swift	2022-01-19 18:51:19 +00:00
Max Desiatov	b964dba177	libswift: implement ReleaseDevirtualizer in Swift	2022-01-19 18:51:19 +00:00