Function patch_seq_clone_value 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn patch_seq_clone_value(
    src: *const StackValue,
    dst: *mut StackValue,
)

Clone a StackValue from LLVM IR - reads from src pointer, writes to dst pointer. This is the FFI-callable version for inline codegen that avoids ABI issues with passing large structs by value.

Safety

Both src and dst pointers must be valid and properly aligned StackValue pointers.