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cc68bd98c9
* split the `PassContext` into multiple protocols and structs: `Context`, `MutatingContext`, `FunctionPassContext` and `SimplifyContext` * change how instruction passes work: implement the `simplify` function in conformance to `SILCombineSimplifyable` * add a mechanism to add a callback for inserted instructions
54 lines
1.6 KiB
Swift
54 lines
1.6 KiB
Swift
//===--- SILPrinter.swift - Example swift function pass -------------------===//
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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 - 2021 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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let silPrinterPass = FunctionPass(name: "sil-printer", runSILPrinter)
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func runSILPrinter(function: Function, context: FunctionPassContext) {
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print("run SILPrinter on function: \(function.name)")
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for (bbIdx, block) in function.blocks.enumerated() {
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print("bb\(bbIdx):")
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print(" predecessors: \(block.predecessors)")
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print(" successors: \(block.successors)")
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print(" arguments:")
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for arg in block.arguments {
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print(" arg: \(arg)")
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for use in arg.uses {
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print(" user: \(use.instruction)")
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}
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if let blockArg = arg as? BlockArgument, blockArg.isPhiArgument {
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for incoming in blockArg.incomingPhiValues {
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print(" incoming: \(incoming)")
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}
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}
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}
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print(" instructions:")
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for inst in block.instructions {
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print(" \(inst)")
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for op in inst.operands {
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print(" op: \(op.value)")
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}
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for (resultIdx, result) in inst.results.enumerated() {
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for use in result.uses {
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print(" user of result \(resultIdx): \(use.instruction)")
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}
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}
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}
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print()
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}
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}
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