(* RUN: %ocamlopt -warn-error A llvm.cmxa llvm_analysis.cmxa llvm_bitwriter.cmxa %s -o %t * RUN: %t %t.bc * RUN: llvm-dis < %t.bc > %t.ll * RUN: FileCheck %s < %t.ll * Do a second pass for things that shouldn't be anywhere. * RUN: FileCheck -check-prefix=CHECK-NOWHERE %s < %t.ll * XFAIL: vg_leak *) (* Note: It takes several seconds for ocamlopt to link an executable with libLLVMCore.a, so it's better to write a big test than a bunch of little ones. *) open Llvm open Llvm_bitwriter (* Tiny unit test framework - really just to help find which line is busted *) let exit_status = ref 0 let suite_name = ref "" let group_name = ref "" let case_num = ref 0 let print_checkpoints = false let context = global_context () let i1_type = Llvm.i1_type context let i8_type = Llvm.i8_type context let i16_type = Llvm.i16_type context let i32_type = Llvm.i32_type context let i64_type = Llvm.i64_type context let void_type = Llvm.void_type context let float_type = Llvm.float_type context let double_type = Llvm.double_type context let fp128_type = Llvm.fp128_type context let group name = group_name := !suite_name ^ "/" ^ name; case_num := 0; if print_checkpoints then prerr_endline (" " ^ name ^ "...") let insist cond = incr case_num; if not cond then exit_status := 10; match print_checkpoints, cond with | false, true -> () | false, false -> prerr_endline ("FAILED: " ^ !suite_name ^ "/" ^ !group_name ^ " #" ^ (string_of_int !case_num)) | true, true -> prerr_endline (" " ^ (string_of_int !case_num)) | true, false -> prerr_endline (" " ^ (string_of_int !case_num) ^ " FAIL") let suite name f = suite_name := name; if print_checkpoints then prerr_endline (name ^ ":"); f () (*===-- Fixture -----------------------------------------------------------===*) let filename = Sys.argv.(1) let m = create_module context filename (*===-- Target ------------------------------------------------------------===*) let test_target () = begin group "triple"; let trip = "i686-apple-darwin8" in set_target_triple trip m; insist (trip = target_triple m) end; begin group "layout"; let layout = "bogus" in set_data_layout layout m; insist (layout = data_layout m) end (* CHECK: target datalayout = "bogus" * CHECK: target triple = "i686-apple-darwin8" *) (*===-- Constants ---------------------------------------------------------===*) let test_constants () = (* CHECK: const_int{{.*}}i32{{.*}}-1 *) group "int"; let c = const_int i32_type (-1) in ignore (define_global "const_int" c m); insist (i32_type = type_of c); insist (is_constant c); (* CHECK: const_sext_int{{.*}}i64{{.*}}-1 *) group "sext int"; let c = const_int i64_type (-1) in ignore (define_global "const_sext_int" c m); insist (i64_type = type_of c); (* CHECK: const_zext_int64{{.*}}i64{{.*}}4294967295 *) group "zext int64"; let c = const_of_int64 i64_type (Int64.of_string "4294967295") false in ignore (define_global "const_zext_int64" c m); insist (i64_type = type_of c); (* CHECK: const_int_string{{.*}}i32{{.*}}-1 *) group "int string"; let c = const_int_of_string i32_type "-1" 10 in ignore (define_global "const_int_string" c m); insist (i32_type = type_of c); (* CHECK: @const_string = global {{.*}}c"cruel\00world" *) group "string"; let c = const_string context "cruel\000world" in ignore (define_global "const_string" c m); insist ((array_type i8_type 11) = type_of c); (* CHECK: const_stringz{{.*}}"hi\00again\00" *) group "stringz"; let c = const_stringz context "hi\000again" in ignore (define_global "const_stringz" c m); insist ((array_type i8_type 9) = type_of c); (* CHECK: const_single{{.*}}2.75 * CHECK: const_double{{.*}}3.1459 * CHECK: const_double_string{{.*}}1.25 *) begin group "real"; let cs = const_float float_type 2.75 in ignore (define_global "const_single" cs m); insist (float_type = type_of cs); let cd = const_float double_type 3.1459 in ignore (define_global "const_double" cd m); insist (double_type = type_of cd); let cd = const_float_of_string double_type "1.25" in ignore (define_global "const_double_string" cd m); insist (double_type = type_of cd) end; let one = const_int i16_type 1 in let two = const_int i16_type 2 in let three = const_int i32_type 3 in let four = const_int i32_type 4 in (* CHECK: const_array{{.*}}[i32 3, i32 4] *) group "array"; let c = const_array i32_type [| three; four |] in ignore (define_global "const_array" c m); insist ((array_type i32_type 2) = (type_of c)); (* CHECK: const_vector{{.*}} *) group "vector"; let c = const_vector [| one; two; one; two; one; two; one; two |] in ignore (define_global "const_vector" c m); insist ((vector_type i16_type 8) = (type_of c)); (* CHECK: const_structure{{.*.}}i16 1, i16 2, i32 3, i32 4 *) group "structure"; let c = const_struct context [| one; two; three; four |] in ignore (define_global "const_structure" c m); insist ((struct_type context [| i16_type; i16_type; i32_type; i32_type |]) = (type_of c)); (* CHECK: const_null{{.*}}zeroinit *) group "null"; let c = const_null (packed_struct_type context [| i1_type; i8_type; i64_type; double_type |]) in ignore (define_global "const_null" c m); (* CHECK: const_all_ones{{.*}}-1 *) group "all ones"; let c = const_all_ones i64_type in ignore (define_global "const_all_ones" c m); group "pointer null"; begin (* CHECK: const_pointer_null = global i64* null *) let c = const_pointer_null (pointer_type i64_type) in ignore (define_global "const_pointer_null" c m); end; (* CHECK: const_undef{{.*}}undef *) group "undef"; let c = undef i1_type in ignore (define_global "const_undef" c m); insist (i1_type = type_of c); insist (is_undef c); group "constant arithmetic"; (* CHECK: @const_neg = global i64 sub * CHECK: @const_nsw_neg = global i64 sub nsw * CHECK: @const_nuw_neg = global i64 sub nuw * CHECK: @const_fneg = global double fsub * CHECK: @const_not = global i64 xor * CHECK: @const_add = global i64 add * CHECK: @const_nsw_add = global i64 add nsw * CHECK: @const_nuw_add = global i64 add nuw * CHECK: @const_fadd = global double fadd * CHECK: @const_sub = global i64 sub * CHECK: @const_nsw_sub = global i64 sub nsw * CHECK: @const_nuw_sub = global i64 sub nuw * CHECK: @const_fsub = global double fsub * CHECK: @const_mul = global i64 mul * CHECK: @const_nsw_mul = global i64 mul nsw * CHECK: @const_nuw_mul = global i64 mul nuw * CHECK: @const_fmul = global double fmul * CHECK: @const_udiv = global i64 udiv * CHECK: @const_sdiv = global i64 sdiv * CHECK: @const_exact_sdiv = global i64 sdiv exact * CHECK: @const_fdiv = global double fdiv * CHECK: @const_urem = global i64 urem * CHECK: @const_srem = global i64 srem * CHECK: @const_frem = global double frem * CHECK: @const_and = global i64 and * CHECK: @const_or = global i64 or * CHECK: @const_xor = global i64 xor * CHECK: @const_icmp = global i1 icmp sle * CHECK: @const_fcmp = global i1 fcmp ole *) let void_ptr = pointer_type i8_type in let five = const_int i64_type 5 in let ffive = const_uitofp five double_type in let foldbomb_gv = define_global "FoldBomb" (const_null i8_type) m in let foldbomb = const_ptrtoint foldbomb_gv i64_type in let ffoldbomb = const_uitofp foldbomb double_type in ignore (define_global "const_neg" (const_neg foldbomb) m); ignore (define_global "const_nsw_neg" (const_nsw_neg foldbomb) m); ignore (define_global "const_nuw_neg" (const_nuw_neg foldbomb) m); ignore (define_global "const_fneg" (const_fneg ffoldbomb) m); ignore (define_global "const_not" (const_not foldbomb) m); ignore (define_global "const_add" (const_add foldbomb five) m); ignore (define_global "const_nsw_add" (const_nsw_add foldbomb five) m); ignore (define_global "const_nuw_add" (const_nuw_add foldbomb five) m); ignore (define_global "const_fadd" (const_fadd ffoldbomb ffive) m); ignore (define_global "const_sub" (const_sub foldbomb five) m); ignore (define_global "const_nsw_sub" (const_nsw_sub foldbomb five) m); ignore (define_global "const_nuw_sub" (const_nuw_sub foldbomb five) m); ignore (define_global "const_fsub" (const_fsub ffoldbomb ffive) m); ignore (define_global "const_mul" (const_mul foldbomb five) m); ignore (define_global "const_nsw_mul" (const_nsw_mul foldbomb five) m); ignore (define_global "const_nuw_mul" (const_nuw_mul foldbomb five) m); ignore (define_global "const_fmul" (const_fmul ffoldbomb ffive) m); ignore (define_global "const_udiv" (const_udiv foldbomb five) m); ignore (define_global "const_sdiv" (const_sdiv foldbomb five) m); ignore (define_global "const_exact_sdiv" (const_exact_sdiv foldbomb five) m); ignore (define_global "const_fdiv" (const_fdiv ffoldbomb ffive) m); ignore (define_global "const_urem" (const_urem foldbomb five) m); ignore (define_global "const_srem" (const_srem foldbomb five) m); ignore (define_global "const_frem" (const_frem ffoldbomb ffive) m); ignore (define_global "const_and" (const_and foldbomb five) m); ignore (define_global "const_or" (const_or foldbomb five) m); ignore (define_global "const_xor" (const_xor foldbomb five) m); ignore (define_global "const_icmp" (const_icmp Icmp.Sle foldbomb five) m); ignore (define_global "const_fcmp" (const_fcmp Fcmp.Ole ffoldbomb ffive) m); group "constant casts"; (* CHECK: const_trunc{{.*}}trunc * CHECK: const_sext{{.*}}sext * CHECK: const_zext{{.*}}zext * CHECK: const_fptrunc{{.*}}fptrunc * CHECK: const_fpext{{.*}}fpext * CHECK: const_uitofp{{.*}}uitofp * CHECK: const_sitofp{{.*}}sitofp * CHECK: const_fptoui{{.*}}fptoui * CHECK: const_fptosi{{.*}}fptosi * CHECK: const_ptrtoint{{.*}}ptrtoint * CHECK: const_inttoptr{{.*}}inttoptr * CHECK: const_bitcast{{.*}}bitcast *) let i128_type = integer_type context 128 in ignore (define_global "const_trunc" (const_trunc (const_add foldbomb five) i8_type) m); ignore (define_global "const_sext" (const_sext foldbomb i128_type) m); ignore (define_global "const_zext" (const_zext foldbomb i128_type) m); ignore (define_global "const_fptrunc" (const_fptrunc ffoldbomb float_type) m); ignore (define_global "const_fpext" (const_fpext ffoldbomb fp128_type) m); ignore (define_global "const_uitofp" (const_uitofp foldbomb double_type) m); ignore (define_global "const_sitofp" (const_sitofp foldbomb double_type) m); ignore (define_global "const_fptoui" (const_fptoui ffoldbomb i32_type) m); ignore (define_global "const_fptosi" (const_fptosi ffoldbomb i32_type) m); ignore (define_global "const_ptrtoint" (const_ptrtoint (const_gep (const_null (pointer_type i8_type)) [| const_int i32_type 1 |]) i32_type) m); ignore (define_global "const_inttoptr" (const_inttoptr (const_add foldbomb five) void_ptr) m); ignore (define_global "const_bitcast" (const_bitcast ffoldbomb i64_type) m); group "misc constants"; (* CHECK: const_size_of{{.*}}getelementptr{{.*}}null * CHECK: const_gep{{.*}}getelementptr * CHECK: const_select{{.*}}select * CHECK: const_extractelement{{.*}}extractelement * CHECK: const_insertelement{{.*}}insertelement * CHECK: const_shufflevector = global <4 x i32> *) ignore (define_global "const_size_of" (size_of (pointer_type i8_type)) m); ignore (define_global "const_gep" (const_gep foldbomb_gv [| five |]) m); ignore (define_global "const_select" (const_select (const_icmp Icmp.Sle foldbomb five) (const_int i8_type (-1)) (const_int i8_type 0)) m); let zero = const_int i32_type 0 in let one = const_int i32_type 1 in ignore (define_global "const_extractelement" (const_extractelement (const_vector [| zero; one; zero; one |]) (const_trunc foldbomb i32_type)) m); ignore (define_global "const_insertelement" (const_insertelement (const_vector [| zero; one; zero; one |]) zero (const_trunc foldbomb i32_type)) m); ignore (define_global "const_shufflevector" (const_shufflevector (const_vector [| zero; one |]) (const_vector [| one; zero |]) (const_vector [| const_int i32_type 0; const_int i32_type 1; const_int i32_type 2; const_int i32_type 3 |])) m); group "asm"; begin let ft = function_type void_type [| i32_type; i32_type; i32_type |] in ignore (const_inline_asm ft "" "{cx},{ax},{di},~{dirflag},~{fpsr},~{flags},~{edi},~{ecx}" true false) end; group "recursive struct"; begin let nsty = named_struct_type context "rec" in let pty = pointer_type nsty in struct_set_body nsty [| i32_type; pty |] false; let elts = [| const_int i32_type 4; const_pointer_null pty |] in let grec_init = const_named_struct nsty elts in ignore (define_global "grec" grec_init m); ignore (string_of_lltype nsty); end (*===-- Global Values -----------------------------------------------------===*) let test_global_values () = let (++) x f = f x; x in let zero32 = const_null i32_type in (* CHECK: GVal01 *) group "naming"; let g = define_global "TEMPORARY" zero32 m in insist ("TEMPORARY" = value_name g); set_value_name "GVal01" g; insist ("GVal01" = value_name g); (* CHECK: GVal02{{.*}}linkonce *) group "linkage"; let g = define_global "GVal02" zero32 m ++ set_linkage Linkage.Link_once in insist (Linkage.Link_once = linkage g); (* CHECK: GVal03{{.*}}Hanalei *) group "section"; let g = define_global "GVal03" zero32 m ++ set_section "Hanalei" in insist ("Hanalei" = section g); (* CHECK: GVal04{{.*}}hidden *) group "visibility"; let g = define_global "GVal04" zero32 m ++ set_visibility Visibility.Hidden in insist (Visibility.Hidden = visibility g); (* CHECK: GVal05{{.*}}align 128 *) group "alignment"; let g = define_global "GVal05" zero32 m ++ set_alignment 128 in insist (128 = alignment g) (*===-- Global Variables --------------------------------------------------===*) let test_global_variables () = let (++) x f = f x; x in let fourty_two32 = const_int i32_type 42 in group "declarations"; begin (* CHECK: GVar01{{.*}}external *) insist (None == lookup_global "GVar01" m); let g = declare_global i32_type "GVar01" m in insist (is_declaration g); insist (pointer_type float_type == type_of (declare_global float_type "GVar01" m)); insist (g == declare_global i32_type "GVar01" m); insist (match lookup_global "GVar01" m with Some x -> x = g | None -> false); insist (None == lookup_global "QGVar01" m); let g = declare_qualified_global i32_type "QGVar01" 3 m in insist (is_declaration g); insist (qualified_pointer_type float_type 3 == type_of (declare_qualified_global float_type "QGVar01" 3 m)); insist (g == declare_qualified_global i32_type "QGVar01" 3 m); insist (match lookup_global "QGVar01" m with Some x -> x = g | None -> false); end; group "definitions"; begin (* CHECK: GVar02{{.*}}42 * CHECK: GVar03{{.*}}42 *) let g = define_global "GVar02" fourty_two32 m in let g2 = declare_global i32_type "GVar03" m ++ set_initializer fourty_two32 in insist (not (is_declaration g)); insist (not (is_declaration g2)); insist ((global_initializer g) == (global_initializer g2)); let g = define_qualified_global "QGVar02" fourty_two32 3 m in let g2 = declare_qualified_global i32_type "QGVar03" 3 m ++ set_initializer fourty_two32 in insist (not (is_declaration g)); insist (not (is_declaration g2)); insist ((global_initializer g) == (global_initializer g2)); end; (* CHECK: GVar04{{.*}}thread_local *) group "threadlocal"; let g = define_global "GVar04" fourty_two32 m ++ set_thread_local true in insist (is_thread_local g); (* CHECK-NOWHERE-NOT: GVar05 *) group "delete"; let g = define_global "GVar05" fourty_two32 m in delete_global g; (* CHECK: ConstGlobalVar{{.*}}constant *) group "constant"; let g = define_global "ConstGlobalVar" fourty_two32 m in insist (not (is_global_constant g)); set_global_constant true g; insist (is_global_constant g); begin group "iteration"; let m = create_module context "temp" in insist (At_end m = global_begin m); insist (At_start m = global_end m); let g1 = declare_global i32_type "One" m in let g2 = declare_global i32_type "Two" m in insist (Before g1 = global_begin m); insist (Before g2 = global_succ g1); insist (At_end m = global_succ g2); insist (After g2 = global_end m); insist (After g1 = global_pred g2); insist (At_start m = global_pred g1); let lf s x = s ^ "->" ^ value_name x in insist ("->One->Two" = fold_left_globals lf "" m); let rf x s = value_name x ^ "<-" ^ s in insist ("One<-Two<-" = fold_right_globals rf m ""); dispose_module m end (* String globals built below are emitted here. * CHECK: build_global_string{{.*}}stringval *) (*===-- Uses --------------------------------------------------------------===*) let test_uses () = let ty = function_type i32_type [| i32_type; i32_type |] in let fn = define_function "use_function" ty m in let b = builder_at_end context (entry_block fn) in let p1 = param fn 0 in let p2 = param fn 1 in let v1 = build_add p1 p2 "v1" b in let v2 = build_add p1 v1 "v2" b in let _ = build_add v1 v2 "v3" b in let lf s u = value_name (user u) ^ "->" ^ s in insist ("v2->v3->" = fold_left_uses lf "" v1); let rf u s = value_name (user u) ^ "<-" ^ s in insist ("v3<-v2<-" = fold_right_uses rf v1 ""); let lf s u = value_name (used_value u) ^ "->" ^ s in insist ("v1->v1->" = fold_left_uses lf "" v1); let rf u s = value_name (used_value u) ^ "<-" ^ s in insist ("v1<-v1<-" = fold_right_uses rf v1 ""); ignore (build_unreachable b) (*===-- Users -------------------------------------------------------------===*) let test_users () = let ty = function_type i32_type [| i32_type; i32_type |] in let fn = define_function "user_function" ty m in let b = builder_at_end context (entry_block fn) in let p1 = param fn 0 in let p2 = param fn 1 in let a3 = build_alloca i32_type "user_alloca" b in let p3 = build_load a3 "user_load" b in let i = build_add p1 p2 "sum" b in insist ((num_operands i) = 2); insist ((operand i 0) = p1); insist ((operand i 1) = p2); set_operand i 1 p3; insist ((operand i 1) != p2); insist ((operand i 1) = p3); ignore (build_unreachable b) (*===-- Aliases -----------------------------------------------------------===*) let test_aliases () = (* CHECK: @alias = alias i32* @aliasee *) let v = declare_global i32_type "aliasee" m in ignore (add_alias m (pointer_type i32_type) v "alias") (*===-- Functions ---------------------------------------------------------===*) let test_functions () = let ty = function_type i32_type [| i32_type; i64_type |] in let ty2 = function_type i8_type [| i8_type; i64_type |] in (* CHECK: declare i32 @Fn1(i32, i64) *) begin group "declare"; insist (None = lookup_function "Fn1" m); let fn = declare_function "Fn1" ty m in insist (pointer_type ty = type_of fn); insist (is_declaration fn); insist (0 = Array.length (basic_blocks fn)); insist (pointer_type ty2 == type_of (declare_function "Fn1" ty2 m)); insist (fn == declare_function "Fn1" ty m); insist (None <> lookup_function "Fn1" m); insist (match lookup_function "Fn1" m with Some x -> x = fn | None -> false); insist (m == global_parent fn) end; (* CHECK-NOWHERE-NOT: Fn2 *) group "delete"; let fn = declare_function "Fn2" ty m in delete_function fn; (* CHECK: define{{.*}}Fn3 *) group "define"; let fn = define_function "Fn3" ty m in insist (not (is_declaration fn)); insist (1 = Array.length (basic_blocks fn)); ignore (build_unreachable (builder_at_end context (entry_block fn))); (* CHECK: define{{.*}}Fn4{{.*}}Param1{{.*}}Param2 *) group "params"; let fn = define_function "Fn4" ty m in let params = params fn in insist (2 = Array.length params); insist (params.(0) = param fn 0); insist (params.(1) = param fn 1); insist (i32_type = type_of params.(0)); insist (i64_type = type_of params.(1)); set_value_name "Param1" params.(0); set_value_name "Param2" params.(1); ignore (build_unreachable (builder_at_end context (entry_block fn))); (* CHECK: fastcc{{.*}}Fn5 *) group "callconv"; let fn = define_function "Fn5" ty m in insist (CallConv.c = function_call_conv fn); set_function_call_conv CallConv.fast fn; insist (CallConv.fast = function_call_conv fn); ignore (build_unreachable (builder_at_end context (entry_block fn))); begin group "gc"; (* CHECK: Fn6{{.*}}gc{{.*}}shadowstack *) let fn = define_function "Fn6" ty m in insist (None = gc fn); set_gc (Some "ocaml") fn; insist (Some "ocaml" = gc fn); set_gc None fn; insist (None = gc fn); set_gc (Some "shadowstack") fn; ignore (build_unreachable (builder_at_end context (entry_block fn))); end; begin group "iteration"; let m = create_module context "temp" in insist (At_end m = function_begin m); insist (At_start m = function_end m); let f1 = define_function "One" ty m in let f2 = define_function "Two" ty m in insist (Before f1 = function_begin m); insist (Before f2 = function_succ f1); insist (At_end m = function_succ f2); insist (After f2 = function_end m); insist (After f1 = function_pred f2); insist (At_start m = function_pred f1); let lf s x = s ^ "->" ^ value_name x in insist ("->One->Two" = fold_left_functions lf "" m); let rf x s = value_name x ^ "<-" ^ s in insist ("One<-Two<-" = fold_right_functions rf m ""); dispose_module m end (*===-- Params ------------------------------------------------------------===*) let test_params () = begin group "iteration"; let m = create_module context "temp" in let vf = define_function "void" (function_type void_type [| |]) m in insist (At_end vf = param_begin vf); insist (At_start vf = param_end vf); let ty = function_type void_type [| i32_type; i32_type |] in let f = define_function "f" ty m in let p1 = param f 0 in let p2 = param f 1 in set_value_name "One" p1; set_value_name "Two" p2; add_param_attr p1 Attribute.Sext; add_param_attr p2 Attribute.Noalias; remove_param_attr p2 Attribute.Noalias; add_function_attr f Attribute.Nounwind; add_function_attr f Attribute.Noreturn; remove_function_attr f Attribute.Noreturn; insist (Before p1 = param_begin f); insist (Before p2 = param_succ p1); insist (At_end f = param_succ p2); insist (After p2 = param_end f); insist (After p1 = param_pred p2); insist (At_start f = param_pred p1); let lf s x = s ^ "->" ^ value_name x in insist ("->One->Two" = fold_left_params lf "" f); let rf x s = value_name x ^ "<-" ^ s in insist ("One<-Two<-" = fold_right_params rf f ""); dispose_module m end (*===-- Basic Blocks ------------------------------------------------------===*) let test_basic_blocks () = let ty = function_type void_type [| |] in (* CHECK: Bb1 *) group "entry"; let fn = declare_function "X" ty m in let bb = append_block context "Bb1" fn in insist (bb = entry_block fn); ignore (build_unreachable (builder_at_end context bb)); (* CHECK-NOWHERE-NOT: Bb2 *) group "delete"; let fn = declare_function "X2" ty m in let bb = append_block context "Bb2" fn in delete_block bb; group "insert"; let fn = declare_function "X3" ty m in let bbb = append_block context "b" fn in let bba = insert_block context "a" bbb in insist ([| bba; bbb |] = basic_blocks fn); ignore (build_unreachable (builder_at_end context bba)); ignore (build_unreachable (builder_at_end context bbb)); (* CHECK: Bb3 *) group "name/value"; let fn = define_function "X4" ty m in let bb = entry_block fn in ignore (build_unreachable (builder_at_end context bb)); let bbv = value_of_block bb in set_value_name "Bb3" bbv; insist ("Bb3" = value_name bbv); group "casts"; let fn = define_function "X5" ty m in let bb = entry_block fn in ignore (build_unreachable (builder_at_end context bb)); insist (bb = block_of_value (value_of_block bb)); insist (value_is_block (value_of_block bb)); insist (not (value_is_block (const_null i32_type))); begin group "iteration"; let m = create_module context "temp" in let f = declare_function "Temp" (function_type i32_type [| |]) m in insist (At_end f = block_begin f); insist (At_start f = block_end f); let b1 = append_block context "One" f in let b2 = append_block context "Two" f in insist (Before b1 = block_begin f); insist (Before b2 = block_succ b1); insist (At_end f = block_succ b2); insist (After b2 = block_end f); insist (After b1 = block_pred b2); insist (At_start f = block_pred b1); let lf s x = s ^ "->" ^ value_name (value_of_block x) in insist ("->One->Two" = fold_left_blocks lf "" f); let rf x s = value_name (value_of_block x) ^ "<-" ^ s in insist ("One<-Two<-" = fold_right_blocks rf f ""); dispose_module m end (*===-- Instructions ------------------------------------------------------===*) let test_instructions () = begin group "iteration"; let m = create_module context "temp" in let fty = function_type void_type [| i32_type; i32_type |] in let f = define_function "f" fty m in let bb = entry_block f in let b = builder_at context (At_end bb) in insist (At_end bb = instr_begin bb); insist (At_start bb = instr_end bb); let i1 = build_add (param f 0) (param f 1) "One" b in let i2 = build_sub (param f 0) (param f 1) "Two" b in insist (Before i1 = instr_begin bb); insist (Before i2 = instr_succ i1); insist (At_end bb = instr_succ i2); insist (After i2 = instr_end bb); insist (After i1 = instr_pred i2); insist (At_start bb = instr_pred i1); let lf s x = s ^ "->" ^ value_name x in insist ("->One->Two" = fold_left_instrs lf "" bb); let rf x s = value_name x ^ "<-" ^ s in insist ("One<-Two<-" = fold_right_instrs rf bb ""); dispose_module m end (*===-- Builder -----------------------------------------------------------===*) let test_builder () = let (++) x f = f x; x in begin group "parent"; insist (try ignore (insertion_block (builder context)); false with Not_found -> true); 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 ignore (build_ret_void b); insist (fn = block_parent bb); insist (fn = param_parent p); insist (bb = instr_parent sum); insist (bb = insertion_block b) end; group "ret void"; begin (* CHECK: ret void *) let fty = function_type void_type [| |] in let fn = declare_function "X6" fty m in let b = builder_at_end context (append_block context "Bb01" fn) in ignore (build_ret_void b) end; group "ret aggregate"; begin (* CHECK: ret { i8, i64 } { i8 4, i64 5 } *) let sty = struct_type context [| i8_type; i64_type |] in let fty = function_type sty [| |] in let fn = declare_function "XA6" fty m in let b = builder_at_end context (append_block context "Bb01" fn) in let agg = [| const_int i8_type 4; const_int i64_type 5 |] in ignore (build_aggregate_ret agg b) end; (* The rest of the tests will use one big function. *) let fty = function_type i32_type [| i32_type; i32_type |] in let fn = define_function "X7" fty m in let atentry = builder_at_end context (entry_block fn) in let p1 = param fn 0 ++ set_value_name "P1" in let p2 = param fn 1 ++ set_value_name "P2" in let f1 = build_uitofp p1 float_type "F1" atentry in let f2 = build_uitofp p2 float_type "F2" atentry in let bb00 = append_block context "Bb00" fn in ignore (build_unreachable (builder_at_end context bb00)); group "function attribute"; begin ignore (add_function_attr fn Attribute.UWTable); (* CHECK: X7{{.*}}#0 * #0 is uwtable, defined at EOF. *) insist ([Attribute.UWTable] = function_attr fn); end; group "casts"; begin let void_ptr = pointer_type i8_type in (* CHECK-DAG: %build_trunc = trunc i32 %P1 to i8 * CHECK-DAG: %build_trunc2 = trunc i32 %P1 to i8 * CHECK-DAG: %build_trunc3 = trunc i32 %P1 to i8 * CHECK-DAG: %build_zext = zext i8 %build_trunc to i32 * CHECK-DAG: %build_zext2 = zext i8 %build_trunc to i32 * CHECK-DAG: %build_sext = sext i32 %build_zext to i64 * CHECK-DAG: %build_sext2 = sext i32 %build_zext to i64 * CHECK-DAG: %build_sext3 = sext i32 %build_zext to i64 * CHECK-DAG: %build_uitofp = uitofp i64 %build_sext to float * CHECK-DAG: %build_sitofp = sitofp i32 %build_zext to double * CHECK-DAG: %build_fptoui = fptoui float %build_uitofp to i32 * CHECK-DAG: %build_fptosi = fptosi double %build_sitofp to i64 * CHECK-DAG: %build_fptrunc = fptrunc double %build_sitofp to float * CHECK-DAG: %build_fptrunc2 = fptrunc double %build_sitofp to float * CHECK-DAG: %build_fpext = fpext float %build_fptrunc to double * CHECK-DAG: %build_fpext2 = fpext float %build_fptrunc to double * CHECK-DAG: %build_inttoptr = inttoptr i32 %P1 to i8* * CHECK-DAG: %build_ptrtoint = ptrtoint i8* %build_inttoptr to i64 * CHECK-DAG: %build_ptrtoint2 = ptrtoint i8* %build_inttoptr to i64 * CHECK-DAG: %build_bitcast = bitcast i64 %build_ptrtoint to double * CHECK-DAG: %build_bitcast2 = bitcast i64 %build_ptrtoint to double * CHECK-DAG: %build_bitcast3 = bitcast i64 %build_ptrtoint to double * CHECK-DAG: %build_bitcast4 = bitcast i64 %build_ptrtoint to double * CHECK-DAG: %build_pointercast = bitcast i8* %build_inttoptr to i16* *) let inst28 = build_trunc p1 i8_type "build_trunc" atentry in let inst29 = build_zext inst28 i32_type "build_zext" atentry in let inst30 = build_sext inst29 i64_type "build_sext" atentry in let inst31 = build_uitofp inst30 float_type "build_uitofp" atentry in let inst32 = build_sitofp inst29 double_type "build_sitofp" atentry in ignore(build_fptoui inst31 i32_type "build_fptoui" atentry); ignore(build_fptosi inst32 i64_type "build_fptosi" atentry); let inst35 = build_fptrunc inst32 float_type "build_fptrunc" atentry in ignore(build_fpext inst35 double_type "build_fpext" atentry); let inst37 = build_inttoptr p1 void_ptr "build_inttoptr" atentry in let inst38 = build_ptrtoint inst37 i64_type "build_ptrtoint" atentry in ignore(build_bitcast inst38 double_type "build_bitcast" atentry); ignore(build_zext_or_bitcast inst38 double_type "build_bitcast2" atentry); ignore(build_sext_or_bitcast inst38 double_type "build_bitcast3" atentry); ignore(build_trunc_or_bitcast inst38 double_type "build_bitcast4" atentry); ignore(build_pointercast inst37 (pointer_type i16_type) "build_pointercast" atentry); ignore(build_zext_or_bitcast inst28 i32_type "build_zext2" atentry); ignore(build_sext_or_bitcast inst29 i64_type "build_sext2" atentry); ignore(build_trunc_or_bitcast p1 i8_type "build_trunc2" atentry); ignore(build_pointercast inst37 i64_type "build_ptrtoint2" atentry); ignore(build_intcast inst29 i64_type "build_sext3" atentry); ignore(build_intcast p1 i8_type "build_trunc3" atentry); ignore(build_fpcast inst35 double_type "build_fpext2" atentry); ignore(build_fpcast inst32 float_type "build_fptrunc2" atentry); end; group "comparisons"; begin (* CHECK: %build_icmp_ne = icmp ne i32 %P1, %P2 * CHECK: %build_icmp_sle = icmp sle i32 %P2, %P1 * CHECK: %build_fcmp_false = fcmp false float %F1, %F2 * CHECK: %build_fcmp_true = fcmp true float %F2, %F1 * CHECK: %build_is_null{{.*}}= icmp eq{{.*}}%X0,{{.*}}null * CHECK: %build_is_not_null = icmp ne i8* %X1, null * CHECK: %build_ptrdiff *) ignore (build_icmp Icmp.Ne p1 p2 "build_icmp_ne" atentry); ignore (build_icmp Icmp.Sle p2 p1 "build_icmp_sle" atentry); ignore (build_fcmp Fcmp.False f1 f2 "build_fcmp_false" atentry); ignore (build_fcmp Fcmp.True f2 f1 "build_fcmp_true" atentry); let g0 = declare_global (pointer_type i8_type) "g0" m in let g1 = declare_global (pointer_type i8_type) "g1" m in let p0 = build_load g0 "X0" atentry in let p1 = build_load g1 "X1" atentry in ignore (build_is_null p0 "build_is_null" atentry); ignore (build_is_not_null p1 "build_is_not_null" atentry); ignore (build_ptrdiff p1 p0 "build_ptrdiff" atentry); end; group "miscellaneous"; begin (* CHECK: %build_call = tail call cc63 i32 @{{.*}}(i32 signext %P2, i32 %P1) * CHECK: %build_select = select i1 %build_icmp, i32 %P1, i32 %P2 * CHECK: %build_va_arg = va_arg i8** null, i32 * CHECK: %build_extractelement = extractelement <4 x i32> %Vec1, i32 %P2 * CHECK: %build_insertelement = insertelement <4 x i32> %Vec1, i32 %P1, i32 %P2 * CHECK: %build_shufflevector = shufflevector <4 x i32> %Vec1, <4 x i32> %Vec2, <4 x i32> * CHECK: %build_insertvalue0 = insertvalue{{.*}}%bl, i32 1, 0 * CHECK: %build_extractvalue = extractvalue{{.*}}%build_insertvalue1, 1 *) let ci = build_call fn [| p2; p1 |] "build_call" atentry in insist (CallConv.c = instruction_call_conv ci); set_instruction_call_conv 63 ci; insist (63 = instruction_call_conv ci); insist (not (is_tail_call ci)); set_tail_call true ci; insist (is_tail_call ci); add_instruction_param_attr ci 1 Attribute.Sext; add_instruction_param_attr ci 2 Attribute.Noalias; remove_instruction_param_attr ci 2 Attribute.Noalias; let inst46 = build_icmp Icmp.Eq p1 p2 "build_icmp" atentry in ignore (build_select inst46 p1 p2 "build_select" atentry); ignore (build_va_arg (const_null (pointer_type (pointer_type i8_type))) i32_type "build_va_arg" atentry); (* Set up some vector vregs. *) let one = const_int i32_type 1 in let zero = const_int i32_type 0 in let t1 = const_vector [| one; zero; one; zero |] in let t2 = const_vector [| zero; one; zero; one |] in let t3 = const_vector [| one; one; zero; zero |] in let vec1 = build_insertelement t1 p1 p2 "Vec1" atentry in let vec2 = build_insertelement t2 p1 p2 "Vec2" atentry in let sty = struct_type context [| i32_type; i8_type |] in ignore (build_extractelement vec1 p2 "build_extractelement" atentry); ignore (build_insertelement vec1 p1 p2 "build_insertelement" atentry); ignore (build_shufflevector vec1 vec2 t3 "build_shufflevector" atentry); let p = build_alloca sty "ba" atentry in let agg = build_load p "bl" atentry in let agg0 = build_insertvalue agg (const_int i32_type 1) 0 "build_insertvalue0" atentry in let agg1 = build_insertvalue agg0 (const_int i8_type 2) 1 "build_insertvalue1" atentry in ignore (build_extractvalue agg1 1 "build_extractvalue" atentry) end; group "metadata"; begin (* CHECK: %metadata = add i32 %P1, %P2, !test !0 * !0 is metadata emitted at EOF. *) let i = build_add p1 p2 "metadata" atentry in insist ((has_metadata i) = false); let m1 = const_int i32_type 1 in let m2 = mdstring context "metadata test" in let md = mdnode context [| m1; m2 |] in let kind = mdkind_id context "test" in set_metadata i kind md; insist ((has_metadata i) = true); insist ((metadata i kind) = Some md); clear_metadata i kind; insist ((has_metadata i) = false); insist ((metadata i kind) = None); set_metadata i kind md end; group "dbg"; begin (* CHECK: %dbg = add i32 %P1, %P2, !dbg !1 * !1 is metadata emitted at EOF. *) insist ((current_debug_location atentry) = None); let m_line = const_int i32_type 2 in let m_col = const_int i32_type 3 in let m_scope = mdnode context [| |] in let m_inlined = mdnode context [| |] in let md = mdnode context [| m_line; m_col; m_scope; m_inlined |] in set_current_debug_location atentry md; insist ((current_debug_location atentry) = Some md); let i = build_add p1 p2 "dbg" atentry in insist ((has_metadata i) = true); clear_current_debug_location atentry end; group "ret"; begin (* CHECK: ret{{.*}}P1 *) let ret = build_ret p1 atentry in position_before ret atentry end; (* see test/Feature/exception.ll *) let bblpad = append_block context "Bblpad" fn in let rt = struct_type context [| pointer_type i8_type; i32_type |] in let ft = var_arg_function_type i32_type [||] in let personality = declare_function "__gxx_personality_v0" ft m in let ztic = declare_global (pointer_type i8_type) "_ZTIc" m in let ztid = declare_global (pointer_type i8_type) "_ZTId" m in let ztipkc = declare_global (pointer_type i8_type) "_ZTIPKc" m in begin set_global_constant true ztic; set_global_constant true ztid; set_global_constant true ztipkc; let lp = build_landingpad rt personality 0 "lpad" (builder_at_end context bblpad) in begin set_cleanup lp true; add_clause lp ztic; insist((pointer_type (pointer_type i8_type)) = type_of ztid); let ety = pointer_type (pointer_type i8_type) in add_clause lp (const_array ety [| ztipkc; ztid |]); ignore (build_resume lp (builder_at_end context bblpad)); end; (* CHECK: landingpad{{.*}}personality{{.*}}__gxx_personality_v0 * CHECK: cleanup * CHECK: catch{{.*}}i8**{{.*}}@_ZTIc * CHECK: filter{{.*}}@_ZTIPKc{{.*}}@_ZTId * CHECK: resume * *) end; group "br"; begin (* CHECK: br{{.*}}Bb02 *) let bb02 = append_block context "Bb02" fn in let b = builder_at_end context bb02 in ignore (build_br bb02 b) end; group "cond_br"; begin (* CHECK: br{{.*}}build_br{{.*}}Bb03{{.*}}Bb00 *) let bb03 = append_block context "Bb03" fn in let b = builder_at_end context bb03 in let cond = build_trunc p1 i1_type "build_br" b in ignore (build_cond_br cond bb03 bb00 b) end; group "switch"; begin (* CHECK: switch{{.*}}P1{{.*}}SwiBlock3 * CHECK: 2,{{.*}}SwiBlock2 *) let bb1 = append_block context "SwiBlock1" fn in let bb2 = append_block context "SwiBlock2" fn in ignore (build_unreachable (builder_at_end context bb2)); let bb3 = append_block context "SwiBlock3" fn in ignore (build_unreachable (builder_at_end context bb3)); let si = build_switch p1 bb3 1 (builder_at_end context bb1) in begin ignore (add_case si (const_int i32_type 2) bb2); insist (switch_default_dest si = bb3); end; end; group "malloc/free"; begin (* CHECK: call{{.*}}@malloc(i32 ptrtoint * CHECK: call{{.*}}@free(i8* * CHECK: call{{.*}}@malloc(i32 % *) let bb1 = append_block context "MallocBlock1" fn in let m1 = (build_malloc (pointer_type i32_type) "m1" (builder_at_end context bb1)) in ignore (build_free m1 (builder_at_end context bb1)); ignore (build_array_malloc i32_type p1 "m2" (builder_at_end context bb1)); ignore (build_unreachable (builder_at_end context bb1)); end; group "indirectbr"; begin (* CHECK: indirectbr i8* blockaddress(@X7, %IBRBlock2), [label %IBRBlock2, label %IBRBlock3] *) let bb1 = append_block context "IBRBlock1" fn in let bb2 = append_block context "IBRBlock2" fn in ignore (build_unreachable (builder_at_end context bb2)); let bb3 = append_block context "IBRBlock3" fn in ignore (build_unreachable (builder_at_end context bb3)); let addr = block_address fn bb2 in let ibr = build_indirect_br addr 2 (builder_at_end context bb1) in ignore (add_destination ibr bb2); ignore (add_destination ibr bb3) end; group "invoke"; begin (* CHECK: build_invoke{{.*}}invoke{{.*}}P1{{.*}}P2 * CHECK: to{{.*}}Bb04{{.*}}unwind{{.*}}Bblpad *) let bb04 = append_block context "Bb04" fn in let b = builder_at_end context bb04 in ignore (build_invoke fn [| p1; p2 |] bb04 bblpad "build_invoke" b) end; group "unreachable"; begin (* CHECK: unreachable *) let bb06 = append_block context "Bb06" fn in let b = builder_at_end context bb06 in ignore (build_unreachable b) end; group "arithmetic"; begin let bb07 = append_block context "Bb07" fn in let b = builder_at_end context bb07 in (* CHECK: %build_add = add i32 %P1, %P2 * CHECK: %build_nsw_add = add nsw i32 %P1, %P2 * CHECK: %build_nuw_add = add nuw i32 %P1, %P2 * CHECK: %build_fadd = fadd float %F1, %F2 * CHECK: %build_sub = sub i32 %P1, %P2 * CHECK: %build_nsw_sub = sub nsw i32 %P1, %P2 * CHECK: %build_nuw_sub = sub nuw i32 %P1, %P2 * CHECK: %build_fsub = fsub float %F1, %F2 * CHECK: %build_mul = mul i32 %P1, %P2 * CHECK: %build_nsw_mul = mul nsw i32 %P1, %P2 * CHECK: %build_nuw_mul = mul nuw i32 %P1, %P2 * CHECK: %build_fmul = fmul float %F1, %F2 * CHECK: %build_udiv = udiv i32 %P1, %P2 * CHECK: %build_sdiv = sdiv i32 %P1, %P2 * CHECK: %build_exact_sdiv = sdiv exact i32 %P1, %P2 * CHECK: %build_fdiv = fdiv float %F1, %F2 * CHECK: %build_urem = urem i32 %P1, %P2 * CHECK: %build_srem = srem i32 %P1, %P2 * CHECK: %build_frem = frem float %F1, %F2 * CHECK: %build_shl = shl i32 %P1, %P2 * CHECK: %build_lshl = lshr i32 %P1, %P2 * CHECK: %build_ashl = ashr i32 %P1, %P2 * CHECK: %build_and = and i32 %P1, %P2 * CHECK: %build_or = or i32 %P1, %P2 * CHECK: %build_xor = xor i32 %P1, %P2 * CHECK: %build_neg = sub i32 0, %P1 * CHECK: %build_nsw_neg = sub nsw i32 0, %P1 * CHECK: %build_nuw_neg = sub nuw i32 0, %P1 * CHECK: %build_fneg = fsub float {{.*}}0{{.*}}, %F1 * CHECK: %build_not = xor i32 %P1, -1 *) ignore (build_add p1 p2 "build_add" b); ignore (build_nsw_add p1 p2 "build_nsw_add" b); ignore (build_nuw_add p1 p2 "build_nuw_add" b); ignore (build_fadd f1 f2 "build_fadd" b); ignore (build_sub p1 p2 "build_sub" b); ignore (build_nsw_sub p1 p2 "build_nsw_sub" b); ignore (build_nuw_sub p1 p2 "build_nuw_sub" b); ignore (build_fsub f1 f2 "build_fsub" b); ignore (build_mul p1 p2 "build_mul" b); ignore (build_nsw_mul p1 p2 "build_nsw_mul" b); ignore (build_nuw_mul p1 p2 "build_nuw_mul" b); ignore (build_fmul f1 f2 "build_fmul" b); ignore (build_udiv p1 p2 "build_udiv" b); ignore (build_sdiv p1 p2 "build_sdiv" b); ignore (build_exact_sdiv p1 p2 "build_exact_sdiv" b); ignore (build_fdiv f1 f2 "build_fdiv" b); ignore (build_urem p1 p2 "build_urem" b); ignore (build_srem p1 p2 "build_srem" b); ignore (build_frem f1 f2 "build_frem" b); ignore (build_shl p1 p2 "build_shl" b); ignore (build_lshr p1 p2 "build_lshl" b); ignore (build_ashr p1 p2 "build_ashl" b); ignore (build_and p1 p2 "build_and" b); ignore (build_or p1 p2 "build_or" b); ignore (build_xor p1 p2 "build_xor" b); ignore (build_neg p1 "build_neg" b); ignore (build_nsw_neg p1 "build_nsw_neg" b); ignore (build_nuw_neg p1 "build_nuw_neg" b); ignore (build_fneg f1 "build_fneg" b); ignore (build_not p1 "build_not" b); ignore (build_unreachable b) end; group "memory"; begin let bb08 = append_block context "Bb08" fn in let b = builder_at_end context bb08 in (* CHECK: %build_alloca = alloca i32 * CHECK: %build_array_alloca = alloca i32, i32 %P2 * CHECK: %build_load = load i32* %build_array_alloca * CHECK: store i32 %P2, i32* %build_alloca * CHECK: %build_gep = getelementptr i32* %build_array_alloca, i32 %P2 * CHECK: %build_in_bounds_gep = getelementptr inbounds i32* %build_array_alloca, i32 %P2 * CHECK: %build_struct_gep = getelementptr inbounds{{.*}}%build_alloca2, i32 0, i32 1 *) let alloca = build_alloca i32_type "build_alloca" b in let array_alloca = build_array_alloca i32_type p2 "build_array_alloca" b in ignore(build_load array_alloca "build_load" b); ignore(build_store p2 alloca b); ignore(build_gep array_alloca [| p2 |] "build_gep" b); ignore(build_in_bounds_gep array_alloca [| p2 |] "build_in_bounds_gep" b); let sty = struct_type context [| i32_type; i8_type |] in let alloca2 = build_alloca sty "build_alloca2" b in ignore(build_struct_gep alloca2 1 "build_struct_gep" b); ignore(build_unreachable b) end; group "string"; begin let bb09 = append_block context "Bb09" fn in let b = builder_at_end context bb09 in let p = build_alloca (pointer_type i8_type) "p" b in (* build_global_string is emitted above. * CHECK: store{{.*}}build_global_string1{{.*}}p * *) ignore (build_global_string "stringval" "build_global_string" b); let g = build_global_stringptr "stringval" "build_global_string1" b in ignore (build_store g p b); ignore(build_unreachable b); end; group "phi"; begin (* CHECK: PhiNode{{.*}}P1{{.*}}PhiBlock1{{.*}}P2{{.*}}PhiBlock2 *) let b1 = append_block context "PhiBlock1" fn in let b2 = append_block context "PhiBlock2" fn in let jb = append_block context "PhiJoinBlock" fn in ignore (build_br jb (builder_at_end context b1)); ignore (build_br jb (builder_at_end context b2)); let at_jb = builder_at_end context jb in let phi = build_phi [(p1, b1)] "PhiNode" at_jb in insist ([(p1, b1)] = incoming phi); add_incoming (p2, b2) phi; insist ([(p1, b1); (p2, b2)] = incoming phi); ignore (build_unreachable at_jb); end (* End-of-file checks for things like metdata and attributes. * CHECK: attributes #0 = {{.*}}uwtable{{.*}} * CHECK: !0 = metadata !{i32 1, metadata !"metadata test"} * CHECK: !1 = metadata !{i32 2, i32 3, metadata !2, metadata !2} *) (*===-- Pass Managers -----------------------------------------------------===*) let test_pass_manager () = let (++) x f = ignore (f x); x in begin group "module pass manager"; ignore (PassManager.create () ++ PassManager.run_module m ++ PassManager.dispose) end; begin group "function pass manager"; let fty = function_type void_type [| |] in let fn = define_function "FunctionPassManager" fty m in ignore (build_ret_void (builder_at_end context (entry_block fn))); ignore (PassManager.create_function m ++ PassManager.initialize ++ PassManager.run_function fn ++ PassManager.finalize ++ PassManager.dispose) end (*===-- Writer ------------------------------------------------------------===*) let test_writer () = group "valid"; insist (match Llvm_analysis.verify_module m with | None -> true | Some msg -> prerr_string msg; false); group "writer"; insist (write_bitcode_file m filename); dispose_module m (*===-- Driver ------------------------------------------------------------===*) let _ = suite "target" test_target; suite "constants" test_constants; suite "global values" test_global_values; suite "global variables" test_global_variables; suite "uses" test_uses; suite "users" test_users; suite "aliases" test_aliases; suite "functions" test_functions; suite "params" test_params; suite "basic blocks" test_basic_blocks; suite "instructions" test_instructions; suite "builder" test_builder; suite "pass manager" test_pass_manager; suite "writer" test_writer; (* Keep this last; it disposes m. *) exit !exit_status