--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lld/test/MachO/order-file.s	Mon May 25 11:55:54 2020 +0900
@@ -0,0 +1,131 @@
+# REQUIRES: x86
+# RUN: mkdir -p %t
+# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t/test.o
+# RUN: echo ".globl _foo; .text; _foo: _bar: ret" | \
+# RUN:   llvm-mc -filetype=obj -triple=x86_64-apple-darwin -o %t/foo.o
+# RUN: rm -f %t/foo.a
+# RUN: llvm-ar rcs %t/foo.a %t/foo.o
+
+# FOO-FIRST: <_foo>:
+# FOO-FIRST: <_main>:
+
+# FOO-SECOND: <_main>:
+# FOO-SECOND: <_foo>:
+
+# RUN: echo "_foo # just a comment" > %t/ord-1
+# RUN: echo "_main # another comment" >> %t/ord-1
+# RUN: lld -flavor darwinnew -o %t/test-1 %t/test.o %t/foo.o -order_file %t/ord-1
+# RUN: llvm-objdump -d %t/test-1 | FileCheck %s --check-prefix=FOO-FIRST
+## Output should be the same regardless of the command-line order of object files
+# RUN: lld -flavor darwinnew -o %t/test-1 %t/foo.o %t/test.o -order_file %t/ord-1
+# RUN: llvm-objdump -d %t/test-1 | FileCheck %s --check-prefix=FOO-FIRST
+
+# RUN: echo "_main # just a comment" > %t/ord-2
+# RUN: echo "_foo # another comment" >> %t/ord-2
+# RUN: lld -flavor darwinnew -o %t/test-2 %t/test.o %t/foo.o -order_file %t/ord-2
+# RUN: llvm-objdump -d %t/test-2 | FileCheck %s --check-prefix=FOO-SECOND
+# RUN: lld -flavor darwinnew -o %t/test-2 %t/foo.o %t/test.o -order_file %t/ord-2
+# RUN: llvm-objdump -d %t/test-2 | FileCheck %s --check-prefix=FOO-SECOND
+
+# RUN: echo "foo.o:_foo" > %t/ord-file-match
+# RUN: echo "_main" >> %t/ord-file-match
+# RUN: lld -flavor darwinnew -o %t/test-file-match %t/test.o %t/foo.o -order_file %t/ord-file-match
+# RUN: llvm-objdump -d %t/test-file-match | FileCheck %s --check-prefix=FOO-FIRST
+## Output should be the same regardless of the command-line order of object files
+# RUN: lld -flavor darwinnew -o %t/test-file-match %t/foo.o %t/test.o -order_file %t/ord-file-match
+# RUN: llvm-objdump -d %t/test-file-match | FileCheck %s --check-prefix=FOO-FIRST
+
+# RUN: echo "bar.o:_foo" > %t/ord-file-nomatch
+# RUN: echo "_main" >> %t/ord-file-nomatch
+# RUN: echo "_foo" >> %t/ord-file-nomatch
+# RUN: lld -flavor darwinnew -o %t/test-file-nomatch %t/test.o %t/foo.o -order_file %t/ord-file-nomatch
+# RUN: llvm-objdump -d %t/test-file-nomatch | FileCheck %s --check-prefix=FOO-SECOND
+# RUN: lld -flavor darwinnew -o %t/test-file-nomatch %t/foo.o %t/test.o -order_file %t/ord-file-nomatch
+# RUN: llvm-objdump -d %t/test-file-nomatch | FileCheck %s --check-prefix=FOO-SECOND
+
+# RUN: echo "x86_64:_foo" > %t/ord-arch-match
+# RUN: echo "_main" >> %t/ord-arch-match
+# RUN: lld -flavor darwinnew -o %t/test-arch-match %t/test.o %t/foo.o -order_file %t/ord-arch-match
+# RUN: llvm-objdump -d %t/test-arch-match | FileCheck %s --check-prefix=FOO-FIRST
+# RUN: lld -flavor darwinnew -o %t/test-arch-match %t/foo.o %t/test.o -order_file %t/ord-arch-match
+# RUN: llvm-objdump -d %t/test-arch-match | FileCheck %s --check-prefix=FOO-FIRST
+
+# RUN: echo "ppc:_foo" > %t/ord-arch-nomatch
+# RUN: echo "_main" >> %t/ord-arch-nomatch
+# RUN: echo "_foo" >> %t/ord-arch-nomatch
+# RUN: lld -flavor darwinnew -o %t/test-arch-nomatch %t/test.o %t/foo.o -order_file %t/ord-arch-nomatch
+# RUN: llvm-objdump -d %t/test-arch-nomatch | FileCheck %s --check-prefix=FOO-SECOND
+# RUN: lld -flavor darwinnew -o %t/test-arch-nomatch %t/foo.o %t/test.o -order_file %t/ord-arch-nomatch
+# RUN: llvm-objdump -d %t/test-arch-nomatch | FileCheck %s --check-prefix=FOO-SECOND
+
+# RUN: echo "x86_64:bar.o:_foo" > %t/ord-arch-file-match
+# RUN: echo "_main" >> %t/ord-arch-match
+# RUN: lld -flavor darwinnew -o %t/test-arch-match %t/test.o %t/foo.o -order_file %t/ord-arch-match
+# RUN: llvm-objdump -d %t/test-arch-match | FileCheck %s --check-prefix=FOO-FIRST
+# RUN: lld -flavor darwinnew -o %t/test-arch-match %t/foo.o %t/test.o -order_file %t/ord-arch-match
+# RUN: llvm-objdump -d %t/test-arch-match | FileCheck %s --check-prefix=FOO-FIRST
+
+## Test archives
+
+# RUN: lld -flavor darwinnew -o %t/test-archive-1 %t/test.o %t/foo.a -order_file %t/ord-1
+# RUN: llvm-objdump -d %t/test-archive-1 | FileCheck %s --check-prefix=FOO-FIRST
+# RUN: lld -flavor darwinnew -o %t/test-archive-1 %t/foo.a %t/test.o -order_file %t/ord-1
+# RUN: llvm-objdump -d %t/test-archive-1 | FileCheck %s --check-prefix=FOO-FIRST
+
+# RUN: lld -flavor darwinnew -o %t/test-archive-file-no-match %t/test.o %t/foo.a -order_file %t/ord-file-nomatch
+# RUN: llvm-objdump -d %t/test-archive-file-no-match | FileCheck %s --check-prefix=FOO-SECOND
+# RUN: lld -flavor darwinnew -o %t/test-archive %t/foo.a %t/test.o -order_file %t/ord-file-nomatch
+# RUN: llvm-objdump -d %t/test-archive-file-no-match | FileCheck %s --check-prefix=FOO-SECOND
+
+## The following tests check that if an address is matched by multiple order
+## file entries, it should always use the lowest-ordered match.
+
+# RUN: echo "_foo" > %t/ord-multiple-1
+# RUN: echo "_main" >> %t/ord-multiple-1
+# RUN: echo "foo.o:_foo" >> %t/ord-multiple-1
+# RUN: lld -flavor darwinnew -o %t/test-1 %t/test.o %t/foo.o -order_file %t/ord-multiple-1
+# RUN: llvm-objdump -d %t/test-1 | FileCheck %s --check-prefix=FOO-FIRST
+# RUN: lld -flavor darwinnew -o %t/test-1 %t/foo.o %t/test.o -order_file %t/ord-multiple-1
+# RUN: llvm-objdump -d %t/test-1 | FileCheck %s --check-prefix=FOO-FIRST
+
+# RUN: echo "foo.o:_foo" > %t/ord-multiple-2
+# RUN: echo "_main" >> %t/ord-multiple-2
+# RUN: echo "_foo" >> %t/ord-multiple-2
+# RUN: lld -flavor darwinnew -o %t/test-2 %t/test.o %t/foo.o -order_file %t/ord-multiple-2
+# RUN: llvm-objdump -d %t/test-2 | FileCheck %s --check-prefix=FOO-FIRST
+# RUN: lld -flavor darwinnew -o %t/test-2 %t/foo.o %t/test.o -order_file %t/ord-multiple-2
+# RUN: llvm-objdump -d %t/test-2 | FileCheck %s --check-prefix=FOO-FIRST
+
+# RUN: echo "_foo" > %t/ord-multiple-3
+# RUN: echo "_main" >> %t/ord-multiple-3
+# RUN: echo "_foo" >> %t/ord-multiple-3
+# RUN: lld -flavor darwinnew -o %t/test-3 %t/test.o %t/foo.o -order_file %t/ord-multiple-3
+# RUN: llvm-objdump -d %t/test-3 | FileCheck %s --check-prefix=FOO-FIRST
+# RUN: lld -flavor darwinnew -o %t/test-3 %t/foo.o %t/test.o -order_file %t/ord-multiple-3
+# RUN: llvm-objdump -d %t/test-3 | FileCheck %s --check-prefix=FOO-FIRST
+
+# RUN: echo "foo.o:_foo" > %t/ord-multiple-4
+# RUN: echo "_main" >> %t/ord-multiple-4
+# RUN: echo "foo.o:_foo" >> %t/ord-multiple-4
+# RUN: lld -flavor darwinnew -o %t/test-4 %t/test.o %t/foo.o -order_file %t/ord-multiple-4
+# RUN: llvm-objdump -d %t/test-4 | FileCheck %s --check-prefix=FOO-FIRST
+# RUN: lld -flavor darwinnew -o %t/test-4 %t/foo.o %t/test.o -order_file %t/ord-multiple-4
+# RUN: llvm-objdump -d %t/test-4 | FileCheck %s --check-prefix=FOO-FIRST
+
+## _foo and _bar both point to the same location. When both symbols appear in
+## an order file, the location in question should be ordered according to the
+## lowest-ordered symbol that references it.
+# RUN: echo "_bar" > %t/ord-alias
+# RUN: echo "_main" >> %t/ord-alias
+# RUN: echo "_foo" >> %t/ord-alias
+# RUN: lld -flavor darwinnew -o %t/test-alias %t/test.o %t/foo.o -order_file %t/ord-alias
+# RUN: llvm-objdump -d %t/test-alias | FileCheck %s --check-prefix=FOO-FIRST
+# RUN: lld -flavor darwinnew -o %t/test-alias %t/foo.o %t/test.o -order_file %t/ord-alias
+# RUN: llvm-objdump -d %t/test-alias | FileCheck %s --check-prefix=FOO-FIRST
+
+.text
+.globl _main
+
+_main:
+  callq _foo
+  ret