This article discusses how object files can contain LLVM IR that is used for link-time optimization. But what if the linker is compiling a project that includes a static library, do static libraries have the information as well? If so, under which circumstances?
Does monolithic link-time optimization work with static libraries?
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Yes. Static libraries can contain llvm-IR-bitcode also.
A. Step for build static libs with llvm-IR-bitcode
Build Settings->Enable Bitcode, Switch toYesProduct->ArchiveB. Check if a static lib contains llvm-IR-bitcode or not.
otool -l libDemo.a__bitcodeand check whether thesizeis bigger than 000001 or not.if
size> 000001 : then the static lib contain llvm-IR-bitcodeelse: the static lib do not contain llvm-IR-bitcode.
Wish this answers your question.