mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-19 01:13:25 +00:00
8ef426baa3
built atop the C language bindings, and user programs can link with them as
such:
# Bytecode
ocamlc -cc g++ llvm.cma llvmbitwriter.cma -o example example.ml
# Native
ocamlopt -cc g++ llvm.cmxa llvmbitwriter.cmxa -o example.opt example.ml
The vmcore.ml test exercises most/all of the APIs thus far bound. Unfortunately,
they're not yet numerous enough to write hello world. But:
$ cat example.ml
(* example.ml *)
open Llvm
open Llvm_bitwriter
let _ =
let filename = Sys.argv.(1) in
let m = create_module filename in
let v = make_int_constant i32_type 42 false in
let g = define_global "hello_world" v m in
if not (write_bitcode_file m filename) then exit 1;
dispose_module m;
$ ocamlc -cc g++ llvm.cma llvm_bitwriter.cma -o example example.ml
File "example.ml", line 11, characters 6-7:
Warning Y: unused variable g.
$ ./example example.bc
$ llvm-dis < example.bc
; ModuleID = '<stdin>'
@hello_world = global i32 42 ; <i32*> [#uses=0]
The ocaml test cases provide effective tests for the C interfaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42093 91177308-0d34-0410-b5e6-96231b3b80d8
17 lines
455 B
OCaml
17 lines
455 B
OCaml
(* RUN: %ocamlc llvm.cma llvm_bitwriter.cma %s -o %t
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* RUN: ./%t %t.bc
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* RUN: llvm-dis < %t.bc | grep caml_int_ty
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*)
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(* Note that this takes a moment to link, so it's best to keep the number of
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individual tests low. *)
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let test x = if not x then exit 1 else ()
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let _ =
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let m = Llvm.create_module "ocaml_test_module" in
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ignore (Llvm.add_type_name "caml_int_ty" Llvm.i32_type m);
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test (Llvm_bitwriter.write_bitcode_file m Sys.argv.(1))
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