Files
swift-mirror/SwiftCompilerSources/Sources/Optimizer/FunctionPasses/SILPrinter.swift
Erik Eckstein 345fcbe39a Improve collections in the swift SIL/Optimizer
Improve block/instruction lists and similar collections

* pretty print collections in the form “[a, b, c]”
* also do this for lazy sequences
* define a custom Mirror
* in a collection, only print the name of blocks, functions and globals (instead of the full object)
* replace `BasicBlock.reverseInstructions` with `BasicBlock.instructions.reversed()` - in an efficient way
2022-01-12 15:47:16 +01:00

49 lines
1.4 KiB
Swift

//===--- SILPrinter.swift - Example swift function pass -------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2021 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
let silPrinterPass = FunctionPass(name: "sil-printer", runSILPrinter)
func runSILPrinter(function: Function, context: PassContext) {
print("run SILPrinter on function: \(function.name)")
for (bbIdx, block) in function.blocks.enumerated() {
print("bb\(bbIdx):")
print(" predecessors: \(block.predecessors)")
print(" successors: \(block.successors)")
print(" arguments:")
for arg in block.arguments {
print(" arg: \(arg)")
for use in arg.uses {
print(" user: \(use.instruction)")
}
}
print(" instructions:")
for inst in block.instructions {
print(" \(inst)")
for op in inst.operands {
print(" op: \(op.value)")
}
for (resultIdx, result) in inst.results.enumerated() {
for use in result.uses {
print(" user of result \(resultIdx): \(use.instruction)")
}
}
}
print()
}
}