thinlto_codegen_set_final_cache_size_relative_to_available_space

Undocumented in source but is binding to an external library. You might be able to learn more by searching the web for its name.
__gshared extern (System) nothrow
static if(LLVM_Version >= asVersion(3, 9, 0))
void
thinlto_codegen_set_final_cache_size_relative_to_available_space

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