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[SR-10342] Compile Time Regression #52742

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swift-ci opened this issue Apr 9, 2019 · 3 comments
Closed

[SR-10342] Compile Time Regression #52742

swift-ci opened this issue Apr 9, 2019 · 3 comments
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself regression swift 5.0

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@swift-ci
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swift-ci commented Apr 9, 2019

Previous ID SR-10342
Radar rdar://problem/49996408
Original Reporter Valpertui (JIRA User)
Type Bug
Status Resolved
Resolution Duplicate
Environment

Xcode Version 10.2 (10E125)
Apple Swift version 5.0 (swiftlang-1001.0.69.5 clang-1001.0.46.3)

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, 5.0Regression
Assignee None
Priority Medium

md5: 15ba1d1c0e6d5211bb83bce18362bdb9

Issue Description:

The open project SwiftDate (https://github.com/malcommac/SwiftDate) contains 124 files with several large literals defining dictionaries of [String: Any]. (see the files there : https://github.com/malcommac/SwiftDate/tree/master/Sources/SwiftDate/Formatters/RelativeFormatter/languages)

When building the framework using Xcode 10.2 with whole module optimization enabled, the framework take 300 seconds to build. It was taking around 30 seconds at most using Xcode 10.1.
@belkadan
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belkadan commented Apr 9, 2019

@xedin, did anything change significantly here?

@swift-ci
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Comment by Valentin Pertuisot (JIRA)

Update for Xcode 10.2.1 :

  • Release builds (whole module optimization) of this framework (Swiftdate) are about 10% quicker. (300 seconds -> 270)

  • Debug builds (no optimizations) of this framework are now around 75% quicker (110 seconds -> 25 seconds)

(All builds are done with derived data removed)

@eeckstein
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This is a duplicate of https://bugs.swift.org/browse/SR-10209

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself regression swift 5.0
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@belkadan @eeckstein @swift-ci @AnthonyLatsis