Expose creating constant ints and floats from strings to ocaml.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79214 91177308-0d34-0410-b5e6-96231b3b80d8

bindings/ocaml/llvm/llvm.ml

@@ -237,7 +237,11 @@ external is_undef : llvalue -> bool = "llvm_is_undef"
 external const_int : lltype -> int -> llvalue = "llvm_const_int"
 external const_of_int64 : lltype -> Int64.t -> bool -> llvalue
                         = "llvm_const_of_int64"
+external const_int_of_string : lltype -> string -> int -> llvalue
+                             = "llvm_const_int_of_string"
 external const_float : lltype -> float -> llvalue = "llvm_const_float"
+external const_float_of_string : lltype -> string -> llvalue
+                               = "llvm_const_float_of_string"
 
 (*--... Operations on composite constants ..................................--*)
 external const_string : string -> llvalue = "llvm_const_string"

bindings/ocaml/llvm/llvm.mli

@@ -469,10 +469,20 @@ external const_int : lltype -> int -> llvalue = "llvm_const_int"
 external const_of_int64 : lltype -> Int64.t -> bool -> llvalue
                         = "llvm_const_of_int64"
 
+(** [const_int_of_string ty s r] returns the integer constant of type [ty] and
+ * value [s], with the radix [r]. See the method [llvm::ConstantInt::get]. *)
+external const_int_of_string : lltype -> string -> int -> llvalue
+                   = "llvm_const_int_of_string"
+
 (** [const_float ty n] returns the floating point constant of type [ty] and
     value [n]. See the method [llvm::ConstantFP::get]. *)
 external const_float : lltype -> float -> llvalue = "llvm_const_float"
 
+(** [const_float_of_string ty s] returns the floating point constant of type
+    [ty] and value [n]. See the method [llvm::ConstantFP::get]. *)
+external const_float_of_string : lltype -> string -> llvalue
+                               = "llvm_const_float_of_string"
+
 
 (** {7 Operations on composite constants} *)
 

bindings/ocaml/llvm/llvm_ocaml.c

@@ -388,11 +388,24 @@ CAMLprim LLVMValueRef llvm_const_of_int64(LLVMTypeRef IntTy, value N,
   return LLVMConstInt(IntTy, Int64_val(N), Bool_val(SExt));
 }
 
+/* lltype -> string -> int -> llvalue */
+CAMLprim LLVMValueRef llvm_const_int_of_string(LLVMTypeRef IntTy, value S,
+                                               value Radix) {
+  return LLVMConstIntOfStringAndSize(IntTy, String_val(S), caml_string_length(S),
+                                     Int_val(Radix));
+}
+
 /* lltype -> float -> llvalue */
 CAMLprim LLVMValueRef llvm_const_float(LLVMTypeRef RealTy, value N) {
   return LLVMConstReal(RealTy, Double_val(N));
 }
 
+/* lltype -> string -> llvalue */
+CAMLprim LLVMValueRef llvm_const_float_of_string(LLVMTypeRef RealTy, value S) {
+  return LLVMConstRealOfStringAndSize(RealTy, String_val(S),
+                                      caml_string_length(S));
+}
+
 /*--... Operations on composite constants ..................................--*/
 
 /* string -> llvalue */

test/Bindings/Ocaml/vmcore.ml

@@ -212,6 +212,13 @@ let test_constants () =
   ignore (define_global "Const03" c m);
   insist (i64_type = type_of c);
 
+  (* RUN: grep {ConstIntString.*i32.*-1} < %t.ll
+   *)
+  group "int string";
+  let c = const_int_of_string i32_type "-1" 10 in
+  ignore (define_global "ConstIntString" c m);
+  insist (i32_type = type_of c);
+
   (* RUN: grep {Const04.*"cruel\\\\00world"} < %t.ll
    *)
   group "string";
@@ -228,6 +235,7 @@ let test_constants () =
 
   (* RUN: grep {ConstSingle.*2.75} < %t.ll
    * RUN: grep {ConstDouble.*3.1459} < %t.ll
+   * RUN: grep {ConstDoubleString.*1.25} < %t.ll
    *)
   begin group "real";
     let cs = const_float float_type 2.75 in
@@ -236,6 +244,10 @@ let test_constants () =
 
     let cd = const_float double_type 3.1459 in
     ignore (define_global "ConstDouble" cd m);
+    insist (double_type = type_of cd);
+
+    let cd = const_float_of_string double_type "1.25" in
+    ignore (define_global "ConstDoubleString" cd m);
     insist (double_type = type_of cd)
   end;