llvm-project

fb21f16f - RuntimeLibcalls: Add stub API for getting function signatures (#166290)

RuntimeLibcalls: Add stub API for getting function signatures (#166290) Eventually this should be generated by tablegen for all functions. For now add a manually implementation for sincos_stret, which I have an immediate use for. This will allow pulling repeated code across targets into shared call sequence code. Also add sqrt just to make sure we can handle adding return attributes on the declaration.