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e317a603fc
We insert end_cow_mutation_addr for lifetime dependent values dependent on mutable addresses. end_cow_mutation_addr can be simplified to end_cow_mutation after other optimizations like inlining, specialization etc This PR adds an instruction simplification to transform end_cow_mutation_addr to end_cow_mutation. This can enable array optimizations which look for end_cow_mutation.
34 lines
1.2 KiB
Swift
34 lines
1.2 KiB
Swift
//===--- SimplifyMisc.swift -----------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2024 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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import SIL
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extension TypeValueInst: OnoneSimplifiable, SILCombineSimplifiable {
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func simplify(_ context: SimplifyContext) {
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// If our parameter is not known statically, then bail.
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guard let value = value else {
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return
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}
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// Note: Right now, value generics only support 'Int'. If we ever expand the
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// scope of types supported, then this should change.
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let fieldType = type.getNominalFields(in: parentFunction)![0]
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let builder = Builder(before: self, context)
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let intLiteral = builder.createIntegerLiteral(value, type: fieldType)
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let structInst = builder.createStruct(type: type, elements: [intLiteral])
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uses.replaceAll(with: structInst, context)
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context.erase(instruction: self)
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}
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}
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