Add -sil-output-dir and -ir-output-dir driver options #1995
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This enables generating SIL and LLVM IR files during normal compilation using the frontend -sil-output-path and -ir-output-path flags. Supports both single-file and WMO modes with ile map integration. rdar://160297898
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swiftlang/swift#84392 is the PR for the swift-frontend flags |
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@swift-ci please test |
This extends -save-temps to emit SIL and IR alongside existing temporary files. In the case where an output file map is used with -save-temps, e.g. incremental compilation, only emit the SIL and IR if it has been requested as an output in the filemap. rdar://160297896
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@swift-ci please test |
DougGregor
reviewed
Oct 10, 2025
| flag: "-serialize-diagnostics-path") | ||
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| // Add SIL and IR outputs when explicitly requested via directory options, file maps, or -save-temps | ||
| let saveTempsWithoutFileMap = parsedOptions.hasArgument(.saveTemps) && outputFileMap == nil |
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SwiftDriver is meant to provide some forward/backward compatibility with different swift-frontend versions. In this case where -save-temps has been provided, can this check whether the frontend supports the -sil-output-dir option before it it concludes that it should pass the option down? Otherwise, new driver with old swift-frontend will fail for existing users of -save-temps.
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This enables generating SIL and LLVM IR files during normal compilation using the frontend -sil-output-path and -ir-output-path flags.
Supports both single-file and WMO modes with ile map integration.
rdar://160297898