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Compiler projects using llvm 
--- !mach-o
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...

# RUN: yaml2obj %s -o=%t
# RUN: obj2yaml %t | FileCheck %s
# CHECK: FunctionStarts:  [ 0x3F80, 0x3F84 ]

# RUN: llvm-objdump --macho --function-starts %t | FileCheck %s --check-prefix=OBJDUMP-VERIFY
# OBJDUMP-VERIFY: function_starts.yaml.tmp:
# OBJDUMP-VERIFY: 0000000100003f80
# OBJDUMP-VERIFY: 0000000100003f84