[5.6] Turn on emit-module-separately for whole-module builds by default #960
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Scheduling a separate emit-module job for whole-module builds, combined with the integrated driver in the build system, will allow to parallelize what used to be essentially sequential builds. This mode unblocks building dependents early by duplicating some work in two processes, it requires more cpu work for a faster wall clock build time. Another advantage of this mode is the resulting swiftmodule is lighter from a classic whole-module build. rdar://85976762
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@swift-ci Please test |
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The test failure is the same as in #929, which is that there is no downloadable Swift 5.6 toolchain yet, and |
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@swift-ci Please test |
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@swift-ci Please test |
artemcm
approved these changes
Jan 11, 2022
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Scheduling a separate emit-module job for whole-module builds, combined with the integrated driver in the build system, will allow to parallelize what used to be essentially sequential builds. This mode unblocks building dependents early by duplicating some work in two processes, it requires more cpu work for a faster wall clock build time. Another advantage of this mode is the resulting swiftmodule is lighter from a classic whole-module build.
Cherry-pick from #922.
rdar://85976762