[OCaml] Add Llvm.instr_clone.

llvm-svn: 220008

bindings/ocaml/llvm/llvm.ml

@@ -955,6 +955,7 @@ external instr_pred : llvalue -> (llbasicblock, llvalue) llrev_pos
 
 external instr_opcode : llvalue -> Opcode.t = "llvm_instr_get_opcode"
 external icmp_predicate : llvalue -> Icmp.t option = "llvm_instr_icmp_predicate"
+external instr_clone : llvalue -> llvalue = "llvm_instr_clone"
 
 let rec iter_instrs_range f i e =
   if i = e then () else

bindings/ocaml/llvm/llvm.mli

@@ -1699,6 +1699,11 @@ val instr_opcode : llvalue -> Opcode.t
     instruction [i]. *)
 val icmp_predicate : llvalue -> Icmp.t option
 
+(** [inst_clone i] returns a copy of instruction [i],
+    The instruction has no parent, and no name.
+    See the method [llvm::Instruction::clone]. *)
+val instr_clone : llvalue -> llvalue
+
 
 (** {7 Operations on call sites} *)
 

bindings/ocaml/llvm/llvm_ocaml.c

@@ -1358,6 +1358,13 @@ CAMLprim value llvm_instr_icmp_predicate(LLVMValueRef Val) {
   CAMLreturn(Val_int(0));
 }
 
+/* llvalue -> llvalue */
+CAMLprim LLVMValueRef llvm_instr_clone(LLVMValueRef Inst) {
+  if (!LLVMIsAInstruction(Inst))
+      failwith("Not an instruction");
+  return LLVMInstructionClone(Inst);
+}
+
 
 /*--... Operations on call sites ...........................................--*/
 

test/Bindings/Ocaml/vmcore.ml

@@ -842,6 +842,24 @@ let test_instructions () =
     insist ("One<-Two<-" = fold_right_instrs rf bb "");
     
     dispose_module m
+  end;
+
+  group "clone instr";
+  begin
+    (* CHECK: %clone = add i32 %0, 2
+     *)
+    let fty = function_type void_type [| i32_type |] in
+    let fn = define_function "BuilderParent" fty m in
+    let bb = entry_block fn in
+    let b = builder_at_end context bb in
+    let p = param fn 0 in
+    let sum = build_add p p "sum" b in
+    let y = const_int i32_type 2 in
+    let clone = instr_clone sum in
+    set_operand clone 0 p;
+    set_operand clone 1 y;
+    insert_into_builder clone "clone" b;
+    ignore (build_ret_void b)
   end