rustc_llvm::LLVMDIBuilderInsertDeclareBefore

pub unsafe extern fn LLVMDIBuilderInsertDeclareBefore(Builder: DIBuilderRef, Val: ValueRef, VarInfo: DIVariable, AddrOps: *const i64, AddrOpsCount: c_uint, DL: ValueRef, InsertBefore: ValueRef) -> ValueRef

Unstable (rustc_private)