ios - 为什么 "swift compilation time debugging options"导致 CompileSwift 失败？

Question

我在我的项目中使用这些标志:

OTHER_SWIFT_FLAGS = "-driver-time-compilation -Xfrontend -debug-time-compilation -Xfrontend -debug-time-function-bodies -Xfrontend -debug-time-expression-type-checking";

当我将 Xcode 版本从 12.4 升级到 12.5.1 时，我开始收到此错误:

<unknown>:0: error: unknown argument: '-debug-time-compilation'
Command CompileSwift failed with a nonzero exit code

是否有任何 llvm 更新或类似的更新？

Answer 1

苹果的回答:

Xcode 12.5 uses a new release of the Swift, Swift 5.4. Prior releasesof Xcode 12 contained Swift 5.3, as documented here:https://developer.apple.com/support/xcodeThe debug-time-compilation flag is removed from Swift 5.4 because it nolonger did anything, being superseded by the driver-time-compilationflag. You can see the commit of this change:https://github.com/apple/swift/commit/2198d7174c5857a92e42c5e76e1c1bb9a78db772