mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
0c42b57962
Restructure the ELF handling to be completely agnostic to the OS. Rather than usng the loader to query the section information, use the linker to construct linker tables and synthetic markers for the beginning and of the table. Save off the values of these pointers and pass them along through the constructor to the runtime for registration. This removes the need for the begin/end objects. Remove the special construction of the begin/end objects through the special assembly constructs, preferring to do this in C with a bit of inline assembly to ensure that the section is always allocated. Remove the special handling for the various targets, the empty object file can be linked on all the targets. The new object file has no requirements on the ordering. It needs to simply be injected into the link. Name the replacement file `swiftrt.o` mirroring `crt.o` from libc. Merge the constructor and the definition into a single object file. This approach is generally more portable, overall simpler to implement, and more robust. Thanks to Orlando Bassotto for help analyzing some of the odd behaviours when switching over.
352 lines
14 KiB
Swift
352 lines
14 KiB
Swift
// RUN: %swiftc_driver -driver-print-jobs -target x86_64-apple-macosx10.9 %s 2>&1 > %t.simple.txt
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// RUN: %FileCheck %s < %t.simple.txt
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// RUN: %FileCheck -check-prefix SIMPLE %s < %t.simple.txt
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// RUN: %swiftc_driver -driver-print-jobs -target x86_64-apple-macosx10.9 -static-stdlib %s 2>&1 > %t.simple.txt
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// RUN: %FileCheck -check-prefix SIMPLE_STATIC -implicit-check-not -rpath %s < %t.simple.txt
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// RUN: %swiftc_driver -driver-print-jobs -target x86_64-apple-ios7.1 %s 2>&1 > %t.simple.txt
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// RUN: %FileCheck -check-prefix IOS_SIMPLE %s < %t.simple.txt
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// RUN: %swiftc_driver -driver-print-jobs -target x86_64-apple-tvos9.0 %s 2>&1 > %t.simple.txt
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// RUN: %FileCheck -check-prefix tvOS_SIMPLE %s < %t.simple.txt
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// RUN: %swiftc_driver -driver-print-jobs -target i386-apple-watchos2.0 %s 2>&1 > %t.simple.txt
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// RUN: %FileCheck -check-prefix watchOS_SIMPLE %s < %t.simple.txt
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// RUN: %swiftc_driver -driver-print-jobs -target x86_64-unknown-linux-gnu -Ffoo -Fsystem car -F cdr -framework bar -Lbaz -lboo -Xlinker -undefined %s 2>&1 > %t.linux.txt
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// RUN: %FileCheck -check-prefix LINUX-x86_64 %s < %t.linux.txt
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// RUN: %swiftc_driver -driver-print-jobs -target armv6-unknown-linux-gnueabihf -Ffoo -Fsystem car -F cdr -framework bar -Lbaz -lboo -Xlinker -undefined %s 2>&1 > %t.linux.txt
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// RUN: %FileCheck -check-prefix LINUX-armv6 %s < %t.linux.txt
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// RUN: %swiftc_driver -driver-print-jobs -target armv7-unknown-linux-gnueabihf -Ffoo -Fsystem car -F cdr -framework bar -Lbaz -lboo -Xlinker -undefined %s 2>&1 > %t.linux.txt
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// RUN: %FileCheck -check-prefix LINUX-armv7 %s < %t.linux.txt
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// RUN: %swiftc_driver -driver-print-jobs -target thumbv7-unknown-linux-gnueabihf -Ffoo -Fsystem car -F cdr -framework bar -Lbaz -lboo -Xlinker -undefined %s 2>&1 > %t.linux.txt
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// RUN: %FileCheck -check-prefix LINUX-thumbv7 %s < %t.linux.txt
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// RUN: %swiftc_driver -driver-print-jobs -target armv7-none-linux-androideabi -Ffoo -Fsystem car -F cdr -framework bar -Lbaz -lboo -Xlinker -undefined %s 2>&1 > %t.android.txt
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// RUN: %FileCheck -check-prefix ANDROID-armv7 %s < %t.android.txt
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// RUN: %FileCheck -check-prefix ANDROID-armv7-NEGATIVE %s < %t.android.txt
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// RUN: %swiftc_driver -driver-print-jobs -target x86_64-unknown-windows-cygnus -Ffoo -Fsystem car -F cdr -framework bar -Lbaz -lboo -Xlinker -undefined %s 2>&1 > %t.cygwin.txt
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// RUN: %FileCheck -check-prefix CYGWIN-x86_64 %s < %t.cygwin.txt
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// RUN: %swiftc_driver -driver-print-jobs -emit-library -target x86_64-unknown-linux-gnu %s -Lbar -o dynlib.out 2>&1 > %t.linux.dynlib.txt
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// RUN: %FileCheck -check-prefix LINUX_DYNLIB-x86_64 %s < %t.linux.dynlib.txt
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// RUN: %swiftc_driver -driver-print-jobs -emit-library -target x86_64-apple-macosx10.9.1 %s -sdk %S/../Inputs/clang-importer-sdk -lfoo -framework bar -Lbaz -Fgarply -Fsystem car -F cdr -Xlinker -undefined -Xlinker dynamic_lookup -o sdk.out 2>&1 > %t.complex.txt
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// RUN: %FileCheck %s < %t.complex.txt
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// RUN: %FileCheck -check-prefix COMPLEX %s < %t.complex.txt
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// RUN: %swiftc_driver -driver-print-jobs -target x86_64-apple-macosx10.9 -g %s | %FileCheck -check-prefix DEBUG %s
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// RUN: %empty-directory(%t)
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// RUN: touch %t/a.o
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// RUN: touch %t/a.swiftmodule
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// RUN: touch %t/b.o
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// RUN: touch %t/b.swiftmodule
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// RUN: %swiftc_driver -driver-print-jobs -target x86_64-apple-macosx10.9 %s %t/a.o %t/a.swiftmodule %t/b.o %t/b.swiftmodule -o linker | %FileCheck -check-prefix LINK-SWIFTMODULES %s
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// RUN: %swiftc_driver -driver-print-jobs -target x86_64-apple-macosx10.10 %s > %t.simple-macosx10.10.txt
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// RUN: %FileCheck %s < %t.simple-macosx10.10.txt
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// RUN: %FileCheck -check-prefix SIMPLE %s < %t.simple-macosx10.10.txt
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// RUN: %empty-directory(%t)
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// RUN: touch %t/a.o
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// RUN: %swiftc_driver -driver-print-jobs -target x86_64-apple-macosx10.9 %s %t/a.o -o linker 2>&1 | %FileCheck -check-prefix COMPILE_AND_LINK %s
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// RUN: %swiftc_driver -driver-print-jobs -target x86_64-apple-macosx10.9 %s %t/a.o -driver-use-filelists -o linker 2>&1 | %FileCheck -check-prefix FILELIST %s
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// RUN: %swiftc_driver -driver-print-jobs -target x86_64-apple-macosx10.9 -emit-library %s -module-name LINKER | %FileCheck -check-prefix INFERRED_NAME_DARWIN %s
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// RUN: %swiftc_driver -driver-print-jobs -target x86_64-unknown-linux-gnu -emit-library %s -module-name LINKER | %FileCheck -check-prefix INFERRED_NAME_LINUX %s
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// RUN: %swiftc_driver -driver-print-jobs -target x86_64-unknown-windows-cygnus -emit-library %s -module-name LINKER | %FileCheck -check-prefix INFERRED_NAME_WINDOWS %s
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// Here we specify an output file name using '-o'. For ease of writing these
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// tests, we happen to specify the same file name as is inferred in the
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// INFERRED_NAMED_DARWIN tests above: 'libLINKER.dylib'.
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// RUN: %swiftc_driver -driver-print-jobs -target x86_64-apple-macosx10.9 -emit-library %s -o libLINKER.dylib | %FileCheck -check-prefix INFERRED_NAME_DARWIN %s
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// There are more RUN lines further down in the file.
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// CHECK: swift
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// CHECK: -o [[OBJECTFILE:.*]]
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// CHECK-NEXT: bin/ld{{"? }}
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// CHECK-DAG: [[OBJECTFILE]]
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// CHECK-DAG: -L [[STDLIB_PATH:[^ ]+/lib/swift/macosx]]
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// CHECK-DAG: -rpath [[STDLIB_PATH]]
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// CHECK-DAG: -lSystem
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// CHECK-DAG: -arch x86_64
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// CHECK: -o {{[^ ]+}}
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// SIMPLE: bin/ld{{"? }}
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// SIMPLE-NOT: -syslibroot
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// SIMPLE-DAG: -macosx_version_min 10.{{[0-9]+}}.{{[0-9]+}}
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// SIMPLE-NOT: -syslibroot
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// SIMPLE: -o linker
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// SIMPLE_STATIC: swift
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// SIMPLE_STATIC: -o [[OBJECTFILE:.*]]
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// SIMPLE_STATIC-NEXT: bin/ld{{"? }}
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// SIMPLE_STATIC: [[OBJECTFILE]]
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// SIMPLE_STATIC: -lobjc
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// SIMPLE_STATIC: -lSystem
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// SIMPLE_STATIC: -arch x86_64
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// SIMPLE_STATIC: -L [[STDLIB_PATH:[^ ]+/lib/swift_static/macosx]]
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// SIMPLE_STATIC: -lc++
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// SIMPLE_STATIC: -framework Foundation
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// SIMPLE_STATIC: -force_load_swift_libs
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// SIMPLE_STATIC: -macosx_version_min 10.{{[0-9]+}}.{{[0-9]+}}
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// SIMPLE_STATIC: -no_objc_category_merging
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// SIMPLE_STATIC: -o linker
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// IOS_SIMPLE: swift
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// IOS_SIMPLE: -o [[OBJECTFILE:.*]]
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// IOS_SIMPLE: bin/ld{{"? }}
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// IOS_SIMPLE-DAG: [[OBJECTFILE]]
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// IOS_SIMPLE-DAG: -L {{[^ ]+/lib/swift/iphonesimulator}}
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// IOS_SIMPLE-DAG: -lSystem
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// IOS_SIMPLE-DAG: -arch x86_64
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// IOS_SIMPLE-DAG: -ios_simulator_version_min 7.1.{{[0-9]+}}
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// IOS_SIMPLE: -o linker
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// tvOS_SIMPLE: swift
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// tvOS_SIMPLE: -o [[OBJECTFILE:.*]]
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// tvOS_SIMPLE: bin/ld{{"? }}
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// tvOS_SIMPLE-DAG: [[OBJECTFILE]]
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// tvOS_SIMPLE-DAG: -L {{[^ ]+/lib/swift/appletvsimulator}}
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// tvOS_SIMPLE-DAG: -lSystem
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// tvOS_SIMPLE-DAG: -arch x86_64
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// tvOS_SIMPLE-DAG: -tvos_simulator_version_min 9.0.{{[0-9]+}}
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// tvOS_SIMPLE: -o linker
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// watchOS_SIMPLE: swift
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// watchOS_SIMPLE: -o [[OBJECTFILE:.*]]
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// watchOS_SIMPLE: bin/ld{{"? }}
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// watchOS_SIMPLE-DAG: [[OBJECTFILE]]
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// watchOS_SIMPLE-DAG: -L {{[^ ]+/lib/swift/watchsimulator}}
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// watchOS_SIMPLE-DAG: -lSystem
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// watchOS_SIMPLE-DAG: -arch i386
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// watchOS_SIMPLE-DAG: -watchos_simulator_version_min 2.0.{{[0-9]+}}
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// watchOS_SIMPLE: -o linker
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// LINUX-x86_64: swift
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// LINUX-x86_64: -o [[OBJECTFILE:.*]]
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// LINUX-x86_64: clang++{{"? }}
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// LINUX-x86_64-DAG: -pie
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// LINUX-x86_64-DAG: [[OBJECTFILE]]
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// LINUX-x86_64-DAG: -lswiftCore
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// LINUX-x86_64-DAG: -L [[STDLIB_PATH:[^ ]+/lib/swift]]
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// LINUX-x86_64-DAG: -Xlinker -rpath -Xlinker [[STDLIB_PATH]]
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// LINUX-x86_64-DAG: -F foo -iframework car -F cdr
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// LINUX-x86_64-DAG: -framework bar
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// LINUX-x86_64-DAG: -L baz
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// LINUX-x86_64-DAG: -lboo
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// LINUX-x86_64-DAG: -Xlinker -undefined
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// LINUX-x86_64: -o linker
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// LINUX-armv6: swift
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// LINUX-armv6: -o [[OBJECTFILE:.*]]
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// LINUX-armv6: clang++{{"? }}
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// LINUX-armv6-DAG: -pie
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// LINUX-armv6-DAG: [[OBJECTFILE]]
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// LINUX-armv6-DAG: -lswiftCore
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// LINUX-armv6-DAG: -L [[STDLIB_PATH:[^ ]+/lib/swift]]
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// LINUX-armv6-DAG: -target armv6-unknown-linux-gnueabihf
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// LINUX-armv6-DAG: -Xlinker -rpath -Xlinker [[STDLIB_PATH]]
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// LINUX-armv6-DAG: -F foo -iframework car -F cdr
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// LINUX-armv6-DAG: -framework bar
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// LINUX-armv6-DAG: -L baz
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// LINUX-armv6-DAG: -lboo
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// LINUX-armv6-DAG: -Xlinker -undefined
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// LINUX-armv6: -o linker
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// LINUX-armv7: swift
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// LINUX-armv7: -o [[OBJECTFILE:.*]]
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// LINUX-armv7: clang++{{"? }}
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// LINUX-armv7-DAG: -pie
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// LINUX-armv7-DAG: [[OBJECTFILE]]
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// LINUX-armv7-DAG: -lswiftCore
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// LINUX-armv7-DAG: -L [[STDLIB_PATH:[^ ]+/lib/swift]]
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// LINUX-armv7-DAG: -target armv7-unknown-linux-gnueabihf
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// LINUX-armv7-DAG: -Xlinker -rpath -Xlinker [[STDLIB_PATH]]
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// LINUX-armv7-DAG: -F foo -iframework car -F cdr
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// LINUX-armv7-DAG: -framework bar
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// LINUX-armv7-DAG: -L baz
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// LINUX-armv7-DAG: -lboo
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// LINUX-armv7-DAG: -Xlinker -undefined
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// LINUX-armv7: -o linker
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// LINUX-thumbv7: swift
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// LINUX-thumbv7: -o [[OBJECTFILE:.*]]
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// LINUX-thumbv7: clang++{{"? }}
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// LINUX-thumbv7-DAG: -pie
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// LINUX-thumbv7-DAG: [[OBJECTFILE]]
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// LINUX-thumbv7-DAG: -lswiftCore
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// LINUX-thumbv7-DAG: -L [[STDLIB_PATH:[^ ]+/lib/swift]]
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// LINUX-thumbv7-DAG: -target thumbv7-unknown-linux-gnueabihf
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// LINUX-thumbv7-DAG: -Xlinker -rpath -Xlinker [[STDLIB_PATH]]
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// LINUX-thumbv7-DAG: -F foo -iframework car -F cdr
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// LINUX-thumbv7-DAG: -framework bar
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// LINUX-thumbv7-DAG: -L baz
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// LINUX-thumbv7-DAG: -lboo
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// LINUX-thumbv7-DAG: -Xlinker -undefined
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// LINUX-thumbv7: -o linker
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// ANDROID-armv7: swift
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// ANDROID-armv7: -o [[OBJECTFILE:.*]]
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// ANDROID-armv7: clang++{{"? }}
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// ANDROID-armv7-DAG: -pie
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// ANDROID-armv7-DAG: [[OBJECTFILE]]
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// ANDROID-armv7-DAG: -lswiftCore
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// ANDROID-armv7-DAG: -L [[STDLIB_PATH:[^ ]+/lib/swift]]
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// ANDROID-armv7-DAG: -target armv7-none-linux-androideabi
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// ANDROID-armv7-DAG: -F foo -iframework car -F cdr
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// ANDROID-armv7-DAG: -framework bar
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// ANDROID-armv7-DAG: -L baz
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// ANDROID-armv7-DAG: -lboo
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// ANDROID-armv7-DAG: -Xlinker -undefined
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// ANDROID-armv7: -o linker
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// ANDROID-armv7-NEGATIVE-NOT: -Xlinker -rpath
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// CYGWIN-x86_64: swift
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// CYGWIN-x86_64: -o [[OBJECTFILE:.*]]
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// CYGWIN-x86_64: clang++{{"? }}
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// CYGWIN-x86_64-DAG: [[OBJECTFILE]]
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// CYGWIN-x86_64-DAG: -lswiftCore
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// CYGWIN-x86_64-DAG: -L [[STDLIB_PATH:[^ ]+/lib/swift]]
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// CYGWIN-x86_64-DAG: -Xlinker -rpath -Xlinker [[STDLIB_PATH]]
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// CYGWIN-x86_64-DAG: -F foo -iframework car -F cdr
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// CYGWIN-x86_64-DAG: -framework bar
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// CYGWIN-x86_64-DAG: -L baz
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// CYGWIN-x86_64-DAG: -lboo
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// CYGWIN-x86_64-DAG: -Xlinker -undefined
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// CYGWIN-x86_64: -o linker
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// COMPLEX: bin/ld{{"? }}
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// COMPLEX-DAG: -dylib
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// COMPLEX-DAG: -syslibroot {{.*}}/Inputs/clang-importer-sdk
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// COMPLEX-DAG: -lfoo
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// COMPLEX-DAG: -framework bar
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// COMPLEX-DAG: -L baz
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// COMPLEX-DAG: -F garply -F car -F cdr
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// COMPLEX-DAG: -undefined dynamic_lookup
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// COMPLEX-DAG: -macosx_version_min 10.9.1
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// COMPLEX: -o sdk.out
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// LINUX_DYNLIB-x86_64: swift
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// LINUX_DYNLIB-x86_64: -o [[OBJECTFILE:.*]]
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// LINUX_DYNLIB-x86_64: -o [[AUTOLINKFILE:.*]]
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// LINUX_DYNLIB-x86_64: clang++{{"? }}
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// LINUX_DYNLIB-x86_64-DAG: -shared
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// LINUX_DYNLIB-x86_64-DAG: -fuse-ld=gold
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// LINUX_DYNLIB-x86_64-NOT: -pie
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// LINUX_DYNLIB-x86_64-DAG: -Xlinker -rpath -Xlinker [[STDLIB_PATH:[^ ]+/lib/swift/linux]]
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// LINUX_DYNLIB-x86_64: [[STDLIB_PATH]]/x86_64/swiftrt.o
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// LINUX_DYNLIB-x86_64-DAG: [[OBJECTFILE]]
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// LINUX_DYNLIB-x86_64-DAG: @[[AUTOLINKFILE]]
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// LINUX_DYNLIB-x86_64-DAG: [[STDLIB_PATH]]
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// LINUX_DYNLIB-x86_64-DAG: -lswiftCore
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// LINUX_DYNLIB-x86_64-DAG: -L bar
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// LINUX_DYNLIB-x86_64: -o dynlib.out
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// DEBUG: bin/swift
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// DEBUG-NEXT: bin/swift
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// DEBUG-NEXT: bin/ld{{"? }}
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// DEBUG: -add_ast_path {{.*}}/{{[^/]+}}.swiftmodule
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// DEBUG: -o linker
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// DEBUG-NEXT: {{^|bin/}}dsymutil
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// DEBUG: linker
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// DEBUG: -o linker.dSYM
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// LINK-SWIFTMODULES: bin/swift
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// LINK-SWIFTMODULES-NEXT: bin/ld{{"? }}
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// LINK-SWIFTMODULES-SAME: -add_ast_path {{.*}}/a.swiftmodule
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// LINK-SWIFTMODULES-SAME: -add_ast_path {{.*}}/b.swiftmodule
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// LINK-SWIFTMODULES-SAME: -o linker
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// COMPILE_AND_LINK: bin/swift
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// COMPILE_AND_LINK-NOT: /a.o
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// COMPILE_AND_LINK: linker.swift
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// COMPILE_AND_LINK-NOT: /a.o
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// COMPILE_AND_LINK-NEXT: bin/ld{{"? }}
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// COMPILE_AND_LINK-DAG: /a.o
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// COMPILE_AND_LINK-DAG: .o
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// COMPILE_AND_LINK: -o linker
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// FILELIST: bin/ld{{"? }}
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// FILELIST-NOT: .o
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// FILELIST: -filelist {{"?[^-]}}
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// FILELIST-NOT: .o
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// FILELIST: /a.o
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// FILELIST-NOT: .o
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// FILELIST: -o linker
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// INFERRED_NAME_DARWIN: bin/swift
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// INFERRED_NAME_DARWIN: -module-name LINKER
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// INFERRED_NAME_DARWIN: bin/ld{{"? }}
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// INFERRED_NAME_DARWIN: -o libLINKER.dylib
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// INFERRED_NAME_LINUX: -o libLINKER.so
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// INFERRED_NAME_WINDOWS: -o LINKER.dll
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// Test ld detection. We use hard links to make sure
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// the Swift driver really thinks it's been moved.
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// RUN: rm -rf %t
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// RUN: %empty-directory(%t/DISTINCTIVE-PATH/usr/bin)
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// RUN: touch %t/DISTINCTIVE-PATH/usr/bin/ld
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// RUN: chmod +x %t/DISTINCTIVE-PATH/usr/bin/ld
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// RUN: %hardlink-or-copy(from: %swift_driver_plain, to: %t/DISTINCTIVE-PATH/usr/bin/swiftc)
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// RUN: %t/DISTINCTIVE-PATH/usr/bin/swiftc -target x86_64-apple-macosx10.9 %s -### | %FileCheck -check-prefix=RELATIVE-LINKER %s
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// RELATIVE-LINKER: /DISTINCTIVE-PATH/usr/bin/swift
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// RELATIVE-LINKER: /DISTINCTIVE-PATH/usr/bin/ld
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// RELATIVE-LINKER: -o {{[^ ]+}}
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// Also test arclite detection. This uses xcrun to find arclite when it's not
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// next to Swift.
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// RUN: %empty-directory(%t/ANOTHER-DISTINCTIVE-PATH/usr/bin)
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// RUN: %empty-directory(%t/ANOTHER-DISTINCTIVE-PATH/usr/lib/arc)
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// RUN: cp %S/Inputs/xcrun-return-self.sh %t/ANOTHER-DISTINCTIVE-PATH/usr/bin/xcrun
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// RUN: env PATH=%t/ANOTHER-DISTINCTIVE-PATH/usr/bin %t/DISTINCTIVE-PATH/usr/bin/swiftc -target x86_64-apple-macosx10.9 %s -### | %FileCheck -check-prefix=XCRUN_ARCLITE %s
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// XCRUN_ARCLITE: bin/ld{{"? }}
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// XCRUN_ARCLITE: /ANOTHER-DISTINCTIVE-PATH/usr/lib/arc/libarclite_macosx.a
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// XCRUN_ARCLITE: -o {{[^ ]+}}
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// RUN: %empty-directory(%t/DISTINCTIVE-PATH/usr/lib/arc)
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// RUN: env PATH=%t/ANOTHER-DISTINCTIVE-PATH/usr/bin %t/DISTINCTIVE-PATH/usr/bin/swiftc -target x86_64-apple-macosx10.9 %s -### | %FileCheck -check-prefix=RELATIVE_ARCLITE %s
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// RELATIVE_ARCLITE: bin/ld{{"? }}
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// RELATIVE_ARCLITE: /DISTINCTIVE-PATH/usr/lib/arc/libarclite_macosx.a
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// RELATIVE_ARCLITE: -o {{[^ ]+}}
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// Clean up the test executable because hard links are expensive.
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// RUN: rm -rf %t/DISTINCTIVE-PATH/usr/bin/swiftc
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