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1Test the profile version.2 3RUN: llvm-profdata merge -o %t.profdata %p/Inputs/basic.proftext4RUN: llvm-profdata show --profile-version %t.profdata | FileCheck %s5CHECK: Profile version: 136 7RUN: llvm-profdata merge -o %t.prev.profdata %p/Inputs/basic.proftext --write-prev-version8RUN: llvm-profdata show --profile-version %t.prev.profdata | FileCheck %s --check-prefix=PREV9PREV: Profile version: 1110