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If a module was first read using the adjacent swiftmodule and then reloaded using the swiftinterface, we would do an up to date check on the adjacent module but write out the unit using the swiftinterface. This would cause the same modules to be indexed repeatedly for the first invocation using a new SDK. On the next run we would instead raad the swiftmodule from the cache and thus the out of date check would match up. The impact of this varies depending on the size of the module graph in the initial compilation and the number of jobs started at the same time. Each SDK dependency is re-indexed *and* reloaded, which is a drain on both CPU and memory. Thus, if many jobs are initially started and they're all going down this path, it can cause the system to run out of memory very quickly. Resolves rdar://103119964.
28 lines
1.7 KiB
Swift
28 lines
1.7 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-build-swift -Xfrontend -disable-implicit-concurrency-module-import -Xfrontend -disable-implicit-string-processing-module-import -module-cache-path %t/modulecache -index-file -index-file-path %s %s %S/Inputs/SwiftModuleA.swift -module-name unit_one_test -o %t/00-output_for_index -index-store-path %t/idx
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// RUN: c-index-test core -print-unit %t/idx | %FileCheck %s -implicit-check-not SwiftShims
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// Remove the index and run again to make sure paths don't change from the module cache
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// RUN: %empty-directory(%t/idx)
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// RUN: %target-build-swift -Xfrontend -disable-implicit-concurrency-module-import -Xfrontend -disable-implicit-string-processing-module-import -module-cache-path %t/modulecache -index-file -index-file-path %s %s %S/Inputs/SwiftModuleA.swift -module-name unit_one_test -o %t/00-output_for_index -index-store-path %t/idx
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// RUN: c-index-test core -print-unit %t/idx | %FileCheck %s -implicit-check-not SwiftShims
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// The output is sorted by last path component, so make sure the top-level entry
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// gets sorted first by prepending 0s.
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// CHECK: 00-output_for_index
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// CHECK: DEPEND START
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// CHECK: Unit | system | Swift | [[MODULE:.*[/\\]Swift[.]swiftmodule([/\\].+[.]swiftinterface)?]] | [[SWIFT:.+[.]swiftinterface-[A-Z0-9]*]]
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// CHECK: Record | user | {{.*}}{{/|\\}}unit-one-file-multi-file-invocation.swift |
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// CHECK: DEPEND END (2)
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// CHECK: [[SWIFT]]
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// CHECK: DEPEND START
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// CHECK: Record | system | Swift.Math.Floating | [[MODULE]] | {{.+}}.swiftinterface_Math_Floating-{{.*}}
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// CHECK: Record | system | Swift.String | [[MODULE]] | {{.+}}.swiftinterface_String-{{.*}}
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// CHECK: DEPEND END
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func test1() {
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funcSwiftA()
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}
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