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swift-mirror/SwiftCompilerSources/Sources/Optimizer/InstructionSimplification/SimplifyPartialApply.swift
Erik Eckstein 82734b6ac2 Swift Optimizer: simplification for apply, try_apply, begin_apply and partial_apply
* move the apply of partial_apply transformation from simplify-apply to simplify-partial_apply
* delete dead partial_apply instructions
* devirtualize apply, try_apply and begin_apply
2023-05-11 08:11:44 +02:00

35 lines
1.3 KiB
Swift

//===--- SimplifyPartialApply.swift ---------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2023 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import SIL
extension PartialApplyInst : OnoneSimplifyable {
func simplify(_ context: SimplifyContext) {
let optimizedApplyOfPartialApply = context.tryOptimizeApplyOfPartialApply(closure: self)
if optimizedApplyOfPartialApply {
context.notifyInvalidatedStackNesting()
}
if context.preserveDebugInfo && uses.contains(where: { $0.instruction is DebugValueInst }) {
return
}
// Try to delete the partial_apply.
// In case it became dead because of tryOptimizeApplyOfPartialApply, we don't
// need to copy all arguments again (to extend their lifetimes), because it
// was already done in tryOptimizeApplyOfPartialApply.
if context.tryDeleteDeadClosure(closure: self, needKeepArgsAlive: !optimizedApplyOfPartialApply) {
context.notifyInvalidatedStackNesting()
}
}
}