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[5.5] Eat -experimental-emit-module-separately #38610

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Merged
merged 1 commit into from
Jul 25, 2021
Merged

[5.5] Eat -experimental-emit-module-separately #38610

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4 changes: 4 additions & 0 deletions include/swift/Option/Options.td
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Original file line number Diff line number Diff line change
Expand Up @@ -579,6 +579,10 @@ def experimental_cxx_stdlib :
Separate<["-"], "experimental-cxx-stdlib">,
HelpText<"C++ standard library to use; forwarded to Clang's -stdlib flag">;

def experimental_emit_module_separately:
Flag<["-"], "experimental-emit-module-separately">,
Flags<[FrontendOption, NoInteractiveOption, HelpHidden]>,
HelpText<"Schedule a swift module emission job instead of a merge-modules job (new Driver only)">;

// Diagnostic control options
def suppress_warnings : Flag<["-"], "suppress-warnings">,
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15 changes: 15 additions & 0 deletions test/Driver/emit_module_separately.swift
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@@ -0,0 +1,15 @@
// RUN: %empty-directory(%t)
// RUN: touch %t/file1.swift %t/file2.swift %t/file3.swift
// RUN: echo 'public func main() {}' >%t/main.swift
//
// RUN: %target-swiftc_driver -driver-skip-execution -c -emit-module -module-name main -driver-print-jobs %s -experimental-emit-module-separately %t/file1.swift %t/file2.swift %t/file3.swift %t/main.swift 2>^1 | %FileCheck -check-prefix NORMAL %s
// RUN: %target-swiftc_driver -driver-skip-execution -c -emit-module -module-name main -driver-print-jobs -incremental %s -experimental-emit-module-separately %t/file1.swift %t/file2.swift %t/file3.swift %t/main.swift 2>^1 | %FileCheck -check-prefix INCREMENTAL %s

// Just test that we eat this argument. Only the new driver knows what to do
// here. The legacy driver will just fall back to a merge-modules job as usual.
// NORMAL: swift
// NORMAL-NOT: -experimental-emit-module-separately

// INCREMENTAL: swift
// INCREMENTAL: -merge-modules
// INCREMENTAL-NOT: -experimental-emit-module-separately