6 Commits

Author	SHA1	Message	Date
Erik Eckstein	cd7c533d42	Optimizer: add SingleValueInstruction.replace(with:) and use it throughout the optimizer ... It replaces all uses and then erases the instruction.	2024-12-19 20:53:45 +01:00
Erik Eckstein	c829d5bd77	SimplifyBeginCOWMutation: don't eliminate end_cow_mutation instructions with the [keep_unique] flag ... This flag is important for following optimizations. Therefore such `end_cow_mutation` instructions must not be removed. Also, keep the flag in a SILCombine transformation. rdar://119178823	2023-12-06 08:59:58 +01:00
Erik Eckstein	0509a056fb	SwiftCompilerSources: improve APIs for UseList ... Make filter APIs for UseList chainable by adding them to Sequence where Element == Operand For example, it allows to write: ``` let singleUse = value.uses.ignoreDebugUses.ignoreUsers(ofType: EndAccessInst.self).singleUse ``` Also, add `UseList.getSingleUser(notOfType:)`	2023-11-13 20:18:07 +01:00
Erik Eckstein	f1095556c9	Swift SIL: let var UnaryInstruction.operand return an Operand and not a Value ... To avoid confusion. Instead add specific getters for unary instructions with dedicated names. NFC	2023-02-21 17:57:29 +01:00
Erik Eckstein	85210a4e91	Swift Optimizer: make some SILCombine optimizations available for the "Simplification" pass ... * begin_cow_mutation * global_value * strong_retain and strong_release So far, those simplifications did only run in SILCombine. Now they are also considered in the swift Simplification pass.	2023-02-09 06:50:05 +01:00
Erik Eckstein	ea746479ad	SIL Optimizer: rename directory InstructionPasses -> InstructionSimplification	2023-01-16 16:16:51 +01:00