llvm/test/tools/llvm-ifs/preserve-dates-ifs.test

## Test writing unchanged content to TBE file with --write-if-changed flag.

# RUN: llvm-ifs --input-format=ELF --output-ifs=%t %p/Inputs/gnu_hash.so
# RUN: env TZ=GMT touch -m -t 197001010000 %t
# RUN: llvm-ifs --input-format=ELF --output-ifs=%t --write-if-changed %p/Inputs/gnu_hash.so
# RUN: env TZ=GMT ls -l %t | FileCheck %s

# CHECK: {{[[:space:]]1970}}