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Swift Bridging: use C++ instead of C bridging for the optimizer

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This commit is contained in:
Erik Eckstein
2023-03-21 13:50:22 +01:00
parent a092ecb5c2
commit 010efc1ca6
18 changed files with 554 additions and 671 deletions
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24
SwiftCompilerSources/Sources/Optimizer/DataStructures/Stack.swift
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@@ -27,22 +27,22 @@ import SIL
struct Stack<Element> : CollectionLikeSequence {
private let bridgedContext: BridgedPassContext
private var firstSlab = BridgedSlab(data: nil)
private var lastSlab = BridgedSlab(data: nil)
private var firstSlab = BridgedPassContext.Slab(nil)
private var lastSlab = BridgedPassContext.Slab(nil)
private var endIndex: Int = 0
private static var slabCapacity: Int {
BridgedSlabCapacity / MemoryLayout<Element>.stride
BridgedPassContext.Slab.getCapacity() / MemoryLayout<Element>.stride
}
private static func bind(_ slab: BridgedSlab) -> UnsafeMutablePointer<Element> {
return slab.data!.bindMemory(to: Element.self, capacity: Stack.slabCapacity)
private static func bind(_ slab: BridgedPassContext.Slab) -> UnsafeMutablePointer<Element> {
return UnsafeMutableRawPointer(slab.data!).bindMemory(to: Element.self, capacity: Stack.slabCapacity)
}
struct Iterator : IteratorProtocol {
var slab: BridgedSlab
var slab: BridgedPassContext.Slab
var index: Int
let lastSlab: BridgedSlab
let lastSlab: BridgedPassContext.Slab
let endIndex: Int
mutating func next() -> Element? {
@@ -52,7 +52,7 @@ struct Stack<Element> : CollectionLikeSequence {
index += 1
if index >= end && slab.data != lastSlab.data {
slab = PassContext_getNextSlab(slab)
slab = slab.getNext()
index = 0
}
return elem
@@ -77,11 +77,11 @@ struct Stack<Element> : CollectionLikeSequence {
mutating func push(_ element: Element) {
if endIndex >= Stack.slabCapacity {
lastSlab = PassContext_allocSlab(bridgedContext, lastSlab)
lastSlab = bridgedContext.allocSlab(lastSlab)
endIndex = 0
} else if firstSlab.data == nil {
assert(endIndex == 0)
firstSlab = PassContext_allocSlab(bridgedContext, lastSlab)
firstSlab = bridgedContext.allocSlab(lastSlab)
lastSlab = firstSlab
}
(Stack.bind(lastSlab) + endIndex).initialize(to: element)
@@ -109,12 +109,12 @@ struct Stack<Element> : CollectionLikeSequence {
if endIndex == 0 {
if lastSlab.data == firstSlab.data {
_ = PassContext_freeSlab(bridgedContext, lastSlab)
_ = bridgedContext.freeSlab(lastSlab)
firstSlab.data = nil
lastSlab.data = nil
endIndex = 0
} else {
lastSlab = PassContext_freeSlab(bridgedContext, lastSlab)
lastSlab = bridgedContext.freeSlab(lastSlab)
endIndex = Stack.slabCapacity
}
}