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31 lines
898 B
Swift
31 lines
898 B
Swift
//===--- SimplifyCondFail.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) 2014 - 2023 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 CondFailInst : OnoneSimplifiable {
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func simplify(_ context: SimplifyContext) {
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/// Eliminates
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/// ```
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/// %0 = integer_literal 0
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/// cond_fail %0, "message"
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/// ```
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if let literal = condition as? IntegerLiteralInst,
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let value = literal.value,
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value == 0
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{
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context.erase(instruction: self)
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}
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}
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}
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