unsafe fn size_t_type(&self) -> WeldResult<LLVMTypeRef> {
        Ok(LLVMIntTypeInContext(
            self.context(),
            mem::size_of::<libc::size_t>() as c_uint,
        ))
    }
Returns the LLVM type corresponding to size_t on this architecture.
weld/src/codegen/llvm2/mod.rs