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Merge pull request #82798 from eeckstein/fix-let-property-lowering

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LetPropertyLowering: remove redundant phis after ssa-update
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nate-chandler
2025-07-08 18:07:08 -07:00
committed by GitHub
parent 5ae428d704 81a4f7a84e
commit d6b5c4fb99
7 changed files with 59 additions and 1 deletions
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10
SwiftCompilerSources/Sources/Optimizer/Utilities/SSAUpdater.swift
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@@ -50,4 +50,14 @@ struct SSAUpdater<Context: MutatingContext> {
context.notifyInstructionsChanged()
return context._bridged.SSAUpdater_getValueInMiddleOfBlock(block.bridged).value
}
var insertedPhis: [Phi] {
var phis = [Phi]()
let numPhis = context._bridged.SSAUpdater_getNumInsertedPhis()
phis.reserveCapacity(numPhis)
for idx in 0..<numPhis {
phis.append(Phi(context._bridged.SSAUpdater_getInsertedPhi(idx).value)!)
}
return phis
}
}