Home | History | Annotate | Download | only in Ocaml
      1 (* RUN: rm -rf %t.builddir
      2  * RUN: mkdir -p %t.builddir
      3  * RUN: cp %s %t.builddir
      4  * RUN: %ocamlopt -warn-error A llvm.cmxa llvm_analysis.cmxa llvm_bitwriter.cmxa %t.builddir/vmcore.ml -o %t
      5  * RUN: %t %t.bc
      6  * RUN: llvm-dis < %t.bc > %t.ll
      7  * RUN: FileCheck %s < %t.ll
      8  * Do a second pass for things that shouldn't be anywhere.
      9  * RUN: FileCheck -check-prefix=CHECK-NOWHERE %s < %t.ll
     10  * XFAIL: vg_leak
     11  *)
     12 
     13 (* Note: It takes several seconds for ocamlopt to link an executable with
     14          libLLVMCore.a, so it's better to write a big test than a bunch of
     15          little ones. *)
     16 
     17 open Llvm
     18 open Llvm_bitwriter
     19 
     20 
     21 (* Tiny unit test framework - really just to help find which line is busted *)
     22 let exit_status = ref 0
     23 let suite_name = ref ""
     24 let group_name = ref ""
     25 let case_num = ref 0
     26 let print_checkpoints = false
     27 let context = global_context ()
     28 let i1_type = Llvm.i1_type context
     29 let i8_type = Llvm.i8_type context
     30 let i16_type = Llvm.i16_type context
     31 let i32_type = Llvm.i32_type context
     32 let i64_type = Llvm.i64_type context
     33 let void_type = Llvm.void_type context
     34 let float_type = Llvm.float_type context
     35 let double_type = Llvm.double_type context
     36 let fp128_type = Llvm.fp128_type context
     37 
     38 let group name =
     39   group_name := !suite_name ^ "/" ^ name;
     40   case_num := 0;
     41   if print_checkpoints then
     42     prerr_endline ("  " ^ name ^ "...")
     43 
     44 let insist cond =
     45   incr case_num;
     46   if not cond then
     47     exit_status := 10;
     48   match print_checkpoints, cond with
     49   | false, true -> ()
     50   | false, false ->
     51       prerr_endline ("FAILED: " ^ !suite_name ^ "/" ^ !group_name ^ " #" ^ (string_of_int !case_num))
     52   | true, true ->
     53       prerr_endline ("    " ^ (string_of_int !case_num))
     54   | true, false ->
     55       prerr_endline ("    " ^ (string_of_int !case_num) ^ " FAIL")
     56 
     57 let suite name f =
     58   suite_name := name;
     59   if print_checkpoints then
     60     prerr_endline (name ^ ":");
     61   f ()
     62 
     63 
     64 (*===-- Fixture -----------------------------------------------------------===*)
     65 
     66 let filename = Sys.argv.(1)
     67 let m = create_module context filename
     68 
     69 
     70 (*===-- Conversion --------------------------------------------------------===*)
     71 
     72 let test_conversion () =
     73   insist ("i32" = (string_of_lltype i32_type));
     74   let c = const_int i32_type 42 in
     75   insist ("i32 42" = (string_of_llvalue c))
     76 
     77 
     78 (*===-- Target ------------------------------------------------------------===*)
     79 
     80 let test_target () =
     81   begin group "triple";
     82     let trip = "i686-apple-darwin8" in
     83     set_target_triple trip m;
     84     insist (trip = target_triple m)
     85   end;
     86   
     87   begin group "layout";
     88     let layout = "e" in
     89     set_data_layout layout m;
     90     insist (layout = data_layout m)
     91   end
     92   (* CHECK: target datalayout = "e"
     93    * CHECK: target triple = "i686-apple-darwin8"
     94    *)
     95 
     96 
     97 (*===-- Constants ---------------------------------------------------------===*)
     98 
     99 let test_constants () =
    100   (* CHECK: const_int{{.*}}i32{{.*}}-1
    101    *)
    102   group "int";
    103   let c = const_int i32_type (-1) in
    104   ignore (define_global "const_int" c m);
    105   insist (i32_type = type_of c);
    106   insist (is_constant c);
    107 
    108   (* CHECK: const_sext_int{{.*}}i64{{.*}}-1
    109    *)
    110   group "sext int";
    111   let c = const_int i64_type (-1) in
    112   ignore (define_global "const_sext_int" c m);
    113   insist (i64_type = type_of c);
    114 
    115   (* CHECK: const_zext_int64{{.*}}i64{{.*}}4294967295
    116    *)
    117   group "zext int64";
    118   let c = const_of_int64 i64_type (Int64.of_string "4294967295") false in
    119   ignore (define_global "const_zext_int64" c m);
    120   insist (i64_type = type_of c);
    121 
    122   (* CHECK: const_int_string{{.*}}i32{{.*}}-1
    123    *)
    124   group "int string";
    125   let c = const_int_of_string i32_type "-1" 10 in
    126   ignore (define_global "const_int_string" c m);
    127   insist (i32_type = type_of c);
    128 
    129   (* CHECK: @const_string = global {{.*}}c"cruel\00world"
    130    *)
    131   group "string";
    132   let c = const_string context "cruel\000world" in
    133   ignore (define_global "const_string" c m);
    134   insist ((array_type i8_type 11) = type_of c);
    135 
    136   (* CHECK: const_stringz{{.*}}"hi\00again\00"
    137    *)
    138   group "stringz";
    139   let c = const_stringz context "hi\000again" in
    140   ignore (define_global "const_stringz" c m);
    141   insist ((array_type i8_type 9) = type_of c);
    142 
    143   (* CHECK: const_single{{.*}}2.75
    144    * CHECK: const_double{{.*}}3.1459
    145    * CHECK: const_double_string{{.*}}1.25
    146    *)
    147   begin group "real";
    148     let cs = const_float float_type 2.75 in
    149     ignore (define_global "const_single" cs m);
    150     insist (float_type = type_of cs);
    151     
    152     let cd = const_float double_type 3.1459 in
    153     ignore (define_global "const_double" cd m);
    154     insist (double_type = type_of cd);
    155 
    156     let cd = const_float_of_string double_type "1.25" in
    157     ignore (define_global "const_double_string" cd m);
    158     insist (double_type = type_of cd)
    159   end;
    160   
    161   let one = const_int i16_type 1 in
    162   let two = const_int i16_type 2 in
    163   let three = const_int i32_type 3 in
    164   let four = const_int i32_type 4 in
    165   
    166   (* CHECK: const_array{{.*}}[i32 3, i32 4]
    167    *)
    168   group "array";
    169   let c = const_array i32_type [| three; four |] in
    170   ignore (define_global "const_array" c m);
    171   insist ((array_type i32_type 2) = (type_of c));
    172   
    173   (* CHECK: const_vector{{.*}}<i16 1, i16 2{{.*}}>
    174    *)
    175   group "vector";
    176   let c = const_vector [| one; two; one; two;
    177                           one; two; one; two |] in
    178   ignore (define_global "const_vector" c m);
    179   insist ((vector_type i16_type 8) = (type_of c));
    180 
    181   (* CHECK: const_structure{{.*.}}i16 1, i16 2, i32 3, i32 4
    182    *)
    183   group "structure";
    184   let c = const_struct context [| one; two; three; four |] in
    185   ignore (define_global "const_structure" c m);
    186   insist ((struct_type context [| i16_type; i16_type; i32_type; i32_type |])
    187         = (type_of c));
    188 
    189   (* CHECK: const_null{{.*}}zeroinit
    190    *)
    191   group "null";
    192   let c = const_null (packed_struct_type context [| i1_type; i8_type; i64_type;
    193                                                     double_type |]) in
    194   ignore (define_global "const_null" c m);
    195   
    196   (* CHECK: const_all_ones{{.*}}-1
    197    *)
    198   group "all ones";
    199   let c = const_all_ones i64_type in
    200   ignore (define_global "const_all_ones" c m);
    201 
    202   group "pointer null"; begin
    203     (* CHECK: const_pointer_null = global i64* null
    204      *)
    205     let c = const_pointer_null (pointer_type i64_type) in
    206     ignore (define_global "const_pointer_null" c m);
    207   end;
    208   
    209   (* CHECK: const_undef{{.*}}undef
    210    *)
    211   group "undef";
    212   let c = undef i1_type in
    213   ignore (define_global "const_undef" c m);
    214   insist (i1_type = type_of c);
    215   insist (is_undef c);
    216   
    217   group "constant arithmetic";
    218   (* CHECK: @const_neg = global i64 sub
    219    * CHECK: @const_nsw_neg = global i64 sub nsw
    220    * CHECK: @const_nuw_neg = global i64 sub nuw
    221    * CHECK: @const_fneg = global double fsub
    222    * CHECK: @const_not = global i64 xor
    223    * CHECK: @const_add = global i64 add
    224    * CHECK: @const_nsw_add = global i64 add nsw
    225    * CHECK: @const_nuw_add = global i64 add nuw
    226    * CHECK: @const_fadd = global double fadd
    227    * CHECK: @const_sub = global i64 sub
    228    * CHECK: @const_nsw_sub = global i64 sub nsw
    229    * CHECK: @const_nuw_sub = global i64 sub nuw
    230    * CHECK: @const_fsub = global double fsub
    231    * CHECK: @const_mul = global i64 mul
    232    * CHECK: @const_nsw_mul = global i64 mul nsw
    233    * CHECK: @const_nuw_mul = global i64 mul nuw
    234    * CHECK: @const_fmul = global double fmul
    235    * CHECK: @const_udiv = global i64 udiv
    236    * CHECK: @const_sdiv = global i64 sdiv
    237    * CHECK: @const_exact_sdiv = global i64 sdiv exact
    238    * CHECK: @const_fdiv = global double fdiv
    239    * CHECK: @const_urem = global i64 urem
    240    * CHECK: @const_srem = global i64 srem
    241    * CHECK: @const_frem = global double frem
    242    * CHECK: @const_and = global i64 and
    243    * CHECK: @const_or = global i64 or
    244    * CHECK: @const_xor = global i64 xor
    245    * CHECK: @const_icmp = global i1 icmp sle
    246    * CHECK: @const_fcmp = global i1 fcmp ole
    247    *)
    248   let void_ptr = pointer_type i8_type in
    249   let five = const_int i64_type 5 in
    250   let ffive = const_uitofp five double_type in
    251   let foldbomb_gv = define_global "FoldBomb" (const_null i8_type) m in
    252   let foldbomb = const_ptrtoint foldbomb_gv i64_type in
    253   let ffoldbomb = const_uitofp foldbomb double_type in
    254   ignore (define_global "const_neg" (const_neg foldbomb) m);
    255   ignore (define_global "const_nsw_neg" (const_nsw_neg foldbomb) m);
    256   ignore (define_global "const_nuw_neg" (const_nuw_neg foldbomb) m);
    257   ignore (define_global "const_fneg" (const_fneg ffoldbomb) m);
    258   ignore (define_global "const_not" (const_not foldbomb) m);
    259   ignore (define_global "const_add" (const_add foldbomb five) m);
    260   ignore (define_global "const_nsw_add" (const_nsw_add foldbomb five) m);
    261   ignore (define_global "const_nuw_add" (const_nuw_add foldbomb five) m);
    262   ignore (define_global "const_fadd" (const_fadd ffoldbomb ffive) m);
    263   ignore (define_global "const_sub" (const_sub foldbomb five) m);
    264   ignore (define_global "const_nsw_sub" (const_nsw_sub foldbomb five) m);
    265   ignore (define_global "const_nuw_sub" (const_nuw_sub foldbomb five) m);
    266   ignore (define_global "const_fsub" (const_fsub ffoldbomb ffive) m);
    267   ignore (define_global "const_mul" (const_mul foldbomb five) m);
    268   ignore (define_global "const_nsw_mul" (const_nsw_mul foldbomb five) m);
    269   ignore (define_global "const_nuw_mul" (const_nuw_mul foldbomb five) m);
    270   ignore (define_global "const_fmul" (const_fmul ffoldbomb ffive) m);
    271   ignore (define_global "const_udiv" (const_udiv foldbomb five) m);
    272   ignore (define_global "const_sdiv" (const_sdiv foldbomb five) m);
    273   ignore (define_global "const_exact_sdiv" (const_exact_sdiv foldbomb five) m);
    274   ignore (define_global "const_fdiv" (const_fdiv ffoldbomb ffive) m);
    275   ignore (define_global "const_urem" (const_urem foldbomb five) m);
    276   ignore (define_global "const_srem" (const_srem foldbomb five) m);
    277   ignore (define_global "const_frem" (const_frem ffoldbomb ffive) m);
    278   ignore (define_global "const_and" (const_and foldbomb five) m);
    279   ignore (define_global "const_or" (const_or foldbomb five) m);
    280   ignore (define_global "const_xor" (const_xor foldbomb five) m);
    281   ignore (define_global "const_icmp" (const_icmp Icmp.Sle foldbomb five) m);
    282   ignore (define_global "const_fcmp" (const_fcmp Fcmp.Ole ffoldbomb ffive) m);
    283   
    284   group "constant casts";
    285   (* CHECK: const_trunc{{.*}}trunc
    286    * CHECK: const_sext{{.*}}sext
    287    * CHECK: const_zext{{.*}}zext
    288    * CHECK: const_fptrunc{{.*}}fptrunc
    289    * CHECK: const_fpext{{.*}}fpext
    290    * CHECK: const_uitofp{{.*}}uitofp
    291    * CHECK: const_sitofp{{.*}}sitofp
    292    * CHECK: const_fptoui{{.*}}fptoui
    293    * CHECK: const_fptosi{{.*}}fptosi
    294    * CHECK: const_ptrtoint{{.*}}ptrtoint
    295    * CHECK: const_inttoptr{{.*}}inttoptr
    296    * CHECK: const_bitcast{{.*}}bitcast
    297    * CHECK: const_intcast{{.*}}zext
    298    *)
    299   let i128_type = integer_type context 128 in
    300   ignore (define_global "const_trunc" (const_trunc (const_add foldbomb five)
    301                                                i8_type) m);
    302   ignore (define_global "const_sext" (const_sext foldbomb i128_type) m);
    303   ignore (define_global "const_zext" (const_zext foldbomb i128_type) m);
    304   ignore (define_global "const_fptrunc" (const_fptrunc ffoldbomb float_type) m);
    305   ignore (define_global "const_fpext" (const_fpext ffoldbomb fp128_type) m);
    306   ignore (define_global "const_uitofp" (const_uitofp foldbomb double_type) m);
    307   ignore (define_global "const_sitofp" (const_sitofp foldbomb double_type) m);
    308   ignore (define_global "const_fptoui" (const_fptoui ffoldbomb i32_type) m);
    309   ignore (define_global "const_fptosi" (const_fptosi ffoldbomb i32_type) m);
    310   ignore (define_global "const_ptrtoint" (const_ptrtoint 
    311     (const_gep (const_null (pointer_type i8_type))
    312                [| const_int i32_type 1 |])
    313     i32_type) m);
    314   ignore (define_global "const_inttoptr" (const_inttoptr (const_add foldbomb five)
    315                                                   void_ptr) m);
    316   ignore (define_global "const_bitcast" (const_bitcast ffoldbomb i64_type) m);
    317   ignore (define_global "const_intcast"
    318           (const_intcast foldbomb i128_type ~is_signed:false) m);
    319   
    320   group "misc constants";
    321   (* CHECK: const_size_of{{.*}}getelementptr{{.*}}null
    322    * CHECK: const_gep{{.*}}getelementptr
    323    * CHECK: const_select{{.*}}select
    324    * CHECK: const_extractelement{{.*}}extractelement
    325    * CHECK: const_insertelement{{.*}}insertelement
    326    * CHECK: const_shufflevector = global <4 x i32> <i32 0, i32 1, i32 1, i32 0>
    327    *)
    328   ignore (define_global "const_size_of" (size_of (pointer_type i8_type)) m);
    329   ignore (define_global "const_gep" (const_gep foldbomb_gv [| five |]) m);
    330   ignore (define_global "const_select" (const_select
    331     (const_icmp Icmp.Sle foldbomb five)
    332     (const_int i8_type (-1))
    333     (const_int i8_type 0)) m);
    334   let zero = const_int i32_type 0 in
    335   let one  = const_int i32_type 1 in
    336   ignore (define_global "const_extractelement" (const_extractelement
    337     (const_vector [| zero; one; zero; one |])
    338     (const_trunc foldbomb i32_type)) m);
    339   ignore (define_global "const_insertelement" (const_insertelement
    340     (const_vector [| zero; one; zero; one |])
    341     zero (const_trunc foldbomb i32_type)) m);
    342   ignore (define_global "const_shufflevector" (const_shufflevector
    343     (const_vector [| zero; one |])
    344     (const_vector [| one; zero |])
    345     (const_vector [| const_int i32_type 0; const_int i32_type 1;
    346                      const_int i32_type 2; const_int i32_type 3 |])) m);
    347 
    348   group "asm"; begin
    349     let ft = function_type void_type [| i32_type; i32_type; i32_type |] in
    350     ignore (const_inline_asm
    351       ft
    352       ""
    353       "{cx},{ax},{di},~{dirflag},~{fpsr},~{flags},~{edi},~{ecx}"
    354       true
    355       false)
    356   end;
    357 
    358   group "recursive struct"; begin
    359       let nsty = named_struct_type context "rec" in
    360       let pty = pointer_type nsty in
    361       struct_set_body nsty [| i32_type; pty |] false;
    362       let elts = [| const_int i32_type 4; const_pointer_null pty |] in
    363       let grec_init = const_named_struct nsty elts in
    364       ignore (define_global "grec" grec_init m);
    365       ignore (string_of_lltype nsty);
    366   end
    367 
    368 
    369 (*===-- Global Values -----------------------------------------------------===*)
    370 
    371 let test_global_values () =
    372   let (++) x f = f x; x in
    373   let zero32 = const_null i32_type in
    374 
    375   (* CHECK: GVal01
    376    *)
    377   group "naming";
    378   let g = define_global "TEMPORARY" zero32 m in
    379   insist ("TEMPORARY" = value_name g);
    380   set_value_name "GVal01" g;
    381   insist ("GVal01" = value_name g);
    382 
    383   (* CHECK: GVal02{{.*}}linkonce
    384    *)
    385   group "linkage";
    386   let g = define_global "GVal02" zero32 m ++
    387           set_linkage Linkage.Link_once in
    388   insist (Linkage.Link_once = linkage g);
    389 
    390   (* CHECK: GVal03{{.*}}Hanalei
    391    *)
    392   group "section";
    393   let g = define_global "GVal03" zero32 m ++
    394           set_section "Hanalei" in
    395   insist ("Hanalei" = section g);
    396   
    397   (* CHECK: GVal04{{.*}}hidden
    398    *)
    399   group "visibility";
    400   let g = define_global "GVal04" zero32 m ++
    401           set_visibility Visibility.Hidden in
    402   insist (Visibility.Hidden = visibility g);
    403   
    404   (* CHECK: GVal05{{.*}}align 128
    405    *)
    406   group "alignment";
    407   let g = define_global "GVal05" zero32 m ++
    408           set_alignment 128 in
    409   insist (128 = alignment g)
    410 
    411 
    412 (*===-- Global Variables --------------------------------------------------===*)
    413 
    414 let test_global_variables () =
    415   let (++) x f = f x; x in
    416   let forty_two32 = const_int i32_type 42 in
    417 
    418   group "declarations"; begin
    419     (* CHECK: @GVar01 = external global i32
    420      * CHECK: @QGVar01 = external addrspace(3) global i32
    421      *)
    422     insist (None == lookup_global "GVar01" m);
    423     let g = declare_global i32_type "GVar01" m in
    424     insist (is_declaration g);
    425     insist (pointer_type float_type ==
    426               type_of (declare_global float_type "GVar01" m));
    427     insist (g == declare_global i32_type "GVar01" m);
    428     insist (match lookup_global "GVar01" m with Some x -> x = g
    429                                               | None -> false);
    430 
    431     insist (None == lookup_global "QGVar01" m);
    432     let g = declare_qualified_global i32_type "QGVar01" 3 m in
    433     insist (is_declaration g);
    434     insist (qualified_pointer_type float_type 3 ==
    435               type_of (declare_qualified_global float_type "QGVar01" 3 m));
    436     insist (g == declare_qualified_global i32_type "QGVar01" 3 m);
    437     insist (match lookup_global "QGVar01" m with Some x -> x = g
    438                                               | None -> false);
    439   end;
    440   
    441   group "definitions"; begin
    442     (* CHECK: @GVar02 = global i32 42
    443      * CHECK: @GVar03 = global i32 42
    444      * CHECK: @QGVar02 = addrspace(3) global i32 42
    445      * CHECK: @QGVar03 = addrspace(3) global i32 42
    446      *)
    447     let g = define_global "GVar02" forty_two32 m in
    448     let g2 = declare_global i32_type "GVar03" m ++
    449            set_initializer forty_two32 in
    450     insist (not (is_declaration g));
    451     insist (not (is_declaration g2));
    452     insist ((global_initializer g) == (global_initializer g2));
    453 
    454     let g = define_qualified_global "QGVar02" forty_two32 3 m in
    455     let g2 = declare_qualified_global i32_type "QGVar03" 3 m ++
    456            set_initializer forty_two32 in
    457     insist (not (is_declaration g));
    458     insist (not (is_declaration g2));
    459     insist ((global_initializer g) == (global_initializer g2));
    460   end;
    461 
    462   (* CHECK: GVar04{{.*}}thread_local
    463    *)
    464   group "threadlocal";
    465   let g = define_global "GVar04" forty_two32 m ++
    466           set_thread_local true in
    467   insist (is_thread_local g);
    468 
    469   (* CHECK: GVar05{{.*}}thread_local(initialexec)
    470    *)
    471   group "threadlocal_mode";
    472   let g = define_global "GVar05" forty_two32 m ++
    473           set_thread_local_mode ThreadLocalMode.InitialExec in
    474   insist ((thread_local_mode g) = ThreadLocalMode.InitialExec);
    475 
    476   (* CHECK: GVar06{{.*}}externally_initialized
    477    *)
    478   group "externally_initialized";
    479   let g = define_global "GVar06" forty_two32 m ++
    480           set_externally_initialized true in
    481   insist (is_externally_initialized g);
    482 
    483   (* CHECK-NOWHERE-NOT: GVar07
    484    *)
    485   group "delete";
    486   let g = define_global "GVar07" forty_two32 m in
    487   delete_global g;
    488 
    489   (* CHECK: ConstGlobalVar{{.*}}constant
    490    *)
    491   group "constant";
    492   let g = define_global "ConstGlobalVar" forty_two32 m in
    493   insist (not (is_global_constant g));
    494   set_global_constant true g;
    495   insist (is_global_constant g);
    496   
    497   begin group "iteration";
    498     let m = create_module context "temp" in
    499     
    500     insist (At_end m = global_begin m);
    501     insist (At_start m = global_end m);
    502     
    503     let g1 = declare_global i32_type "One" m in
    504     let g2 = declare_global i32_type "Two" m in
    505     
    506     insist (Before g1 = global_begin m);
    507     insist (Before g2 = global_succ g1);
    508     insist (At_end m = global_succ g2);
    509     
    510     insist (After g2 = global_end m);
    511     insist (After g1 = global_pred g2);
    512     insist (At_start m = global_pred g1);
    513     
    514     let lf s x = s ^ "->" ^ value_name x in
    515     insist ("->One->Two" = fold_left_globals lf "" m);
    516     
    517     let rf x s = value_name x ^ "<-" ^ s in
    518     insist ("One<-Two<-" = fold_right_globals rf m "");
    519     
    520     dispose_module m
    521   end
    522 
    523 (* String globals built below are emitted here.
    524  * CHECK: build_global_string{{.*}}stringval
    525  *)
    526 
    527 
    528 (*===-- Uses --------------------------------------------------------------===*)
    529 
    530 let test_uses () =
    531   let ty = function_type i32_type [| i32_type; i32_type |] in
    532   let fn = define_function "use_function" ty m in
    533   let b = builder_at_end context (entry_block fn) in
    534 
    535   let p1 = param fn 0 in
    536   let p2 = param fn 1 in
    537   let v1 = build_add p1 p2 "v1" b in
    538   let v2 = build_add p1 v1 "v2" b in
    539   let _ = build_add v1 v2 "v3" b in
    540 
    541   let lf s u = value_name (user u) ^ "->" ^ s in
    542   insist ("v2->v3->" = fold_left_uses lf "" v1);
    543   let rf u s = value_name (user u) ^ "<-" ^ s in
    544   insist ("v3<-v2<-" = fold_right_uses rf v1 "");
    545 
    546   let lf s u = value_name (used_value u) ^ "->" ^ s in
    547   insist ("v1->v1->" = fold_left_uses lf "" v1);
    548 
    549   let rf u s = value_name (used_value u) ^ "<-" ^ s in
    550   insist ("v1<-v1<-" = fold_right_uses rf v1 "");
    551 
    552   ignore (build_unreachable b)
    553 
    554 
    555 (*===-- Users -------------------------------------------------------------===*)
    556 
    557 let test_users () =
    558   let ty = function_type i32_type [| i32_type; i32_type |] in
    559   let fn = define_function "user_function" ty m in
    560   let b = builder_at_end context (entry_block fn) in
    561 
    562   let p1 = param fn 0 in
    563   let p2 = param fn 1 in
    564   let a3 = build_alloca i32_type "user_alloca" b in
    565   let p3 = build_load a3 "user_load" b in
    566   let i = build_add p1 p2 "sum" b in
    567 
    568   insist ((num_operands i) = 2);
    569   insist ((operand i 0) = p1);
    570   insist ((operand i 1) = p2);
    571 
    572   set_operand i 1 p3;
    573   insist ((operand i 1) != p2);
    574   insist ((operand i 1) = p3);
    575 
    576   ignore (build_unreachable b)
    577 
    578 
    579 (*===-- Aliases -----------------------------------------------------------===*)
    580 
    581 let test_aliases () =
    582   (* CHECK: @alias = alias i32* @aliasee
    583    *)
    584   let forty_two32 = const_int i32_type 42 in
    585   let v = define_global "aliasee" forty_two32 m in
    586   ignore (add_alias m (pointer_type i32_type) v "alias")
    587 
    588 
    589 (*===-- Functions ---------------------------------------------------------===*)
    590 
    591 let test_functions () =
    592   let ty = function_type i32_type [| i32_type; i64_type |] in
    593   let ty2 = function_type i8_type [| i8_type; i64_type |] in
    594   
    595   (* CHECK: declare i32 @Fn1(i32, i64)
    596    *)
    597   begin group "declare";
    598     insist (None = lookup_function "Fn1" m);
    599     let fn = declare_function "Fn1" ty m in
    600     insist (pointer_type ty = type_of fn);
    601     insist (is_declaration fn);
    602     insist (0 = Array.length (basic_blocks fn));
    603     insist (pointer_type ty2 == type_of (declare_function "Fn1" ty2 m));
    604     insist (fn == declare_function "Fn1" ty m);
    605     insist (None <> lookup_function "Fn1" m);
    606     insist (match lookup_function "Fn1" m with Some x -> x = fn
    607                                              | None -> false);
    608     insist (m == global_parent fn)
    609   end;
    610   
    611   (* CHECK-NOWHERE-NOT: Fn2
    612    *)
    613   group "delete";
    614   let fn = declare_function "Fn2" ty m in
    615   delete_function fn;
    616   
    617   (* CHECK: define{{.*}}Fn3
    618    *)
    619   group "define";
    620   let fn = define_function "Fn3" ty m in
    621   insist (not (is_declaration fn));
    622   insist (1 = Array.length (basic_blocks fn));
    623   ignore (build_unreachable (builder_at_end context (entry_block fn)));
    624   
    625   (* CHECK: define{{.*}}Fn4{{.*}}Param1{{.*}}Param2
    626    *)
    627   group "params";
    628   let fn = define_function "Fn4" ty m in
    629   let params = params fn in
    630   insist (2 = Array.length params);
    631   insist (params.(0) = param fn 0);
    632   insist (params.(1) = param fn 1);
    633   insist (i32_type = type_of params.(0));
    634   insist (i64_type = type_of params.(1));
    635   set_value_name "Param1" params.(0);
    636   set_value_name "Param2" params.(1);
    637   ignore (build_unreachable (builder_at_end context (entry_block fn)));
    638   
    639   (* CHECK: fastcc{{.*}}Fn5
    640    *)
    641   group "callconv";
    642   let fn = define_function "Fn5" ty m in
    643   insist (CallConv.c = function_call_conv fn);
    644   set_function_call_conv CallConv.fast fn;
    645   insist (CallConv.fast = function_call_conv fn);
    646   ignore (build_unreachable (builder_at_end context (entry_block fn)));
    647   
    648   begin group "gc";
    649     (* CHECK: Fn6{{.*}}gc{{.*}}shadowstack
    650      *)
    651     let fn = define_function "Fn6" ty m in
    652     insist (None = gc fn);
    653     set_gc (Some "ocaml") fn;
    654     insist (Some "ocaml" = gc fn);
    655     set_gc None fn;
    656     insist (None = gc fn);
    657     set_gc (Some "shadowstack") fn;
    658     ignore (build_unreachable (builder_at_end context (entry_block fn)));
    659   end;
    660   
    661   begin group "iteration";
    662     let m = create_module context "temp" in
    663     
    664     insist (At_end m = function_begin m);
    665     insist (At_start m = function_end m);
    666     
    667     let f1 = define_function "One" ty m in
    668     let f2 = define_function "Two" ty m in
    669     
    670     insist (Before f1 = function_begin m);
    671     insist (Before f2 = function_succ f1);
    672     insist (At_end m = function_succ f2);
    673     
    674     insist (After f2 = function_end m);
    675     insist (After f1 = function_pred f2);
    676     insist (At_start m = function_pred f1);
    677     
    678     let lf s x = s ^ "->" ^ value_name x in
    679     insist ("->One->Two" = fold_left_functions lf "" m);
    680     
    681     let rf x s = value_name x ^ "<-" ^ s in
    682     insist ("One<-Two<-" = fold_right_functions rf m "");
    683     
    684     dispose_module m
    685   end
    686 
    687 
    688 (*===-- Params ------------------------------------------------------------===*)
    689 
    690 let test_params () =
    691   begin group "iteration";
    692     let m = create_module context "temp" in
    693     
    694     let vf = define_function "void" (function_type void_type [| |]) m in
    695     
    696     insist (At_end vf = param_begin vf);
    697     insist (At_start vf = param_end vf);
    698     
    699     let ty = function_type void_type [| i32_type; i32_type |] in
    700     let f = define_function "f" ty m in
    701     let p1 = param f 0 in
    702     let p2 = param f 1 in
    703     set_value_name "One" p1;
    704     set_value_name "Two" p2;
    705     add_param_attr p1 Attribute.Sext;
    706     add_param_attr p2 Attribute.Noalias;
    707     remove_param_attr p2 Attribute.Noalias;
    708     add_function_attr f Attribute.Nounwind;
    709     add_function_attr f Attribute.Noreturn;
    710     remove_function_attr f Attribute.Noreturn;
    711 
    712     insist (Before p1 = param_begin f);
    713     insist (Before p2 = param_succ p1);
    714     insist (At_end f = param_succ p2);
    715     
    716     insist (After p2 = param_end f);
    717     insist (After p1 = param_pred p2);
    718     insist (At_start f = param_pred p1);
    719     
    720     let lf s x = s ^ "->" ^ value_name x in
    721     insist ("->One->Two" = fold_left_params lf "" f);
    722     
    723     let rf x s = value_name x ^ "<-" ^ s in
    724     insist ("One<-Two<-" = fold_right_params rf f "");
    725     
    726     dispose_module m
    727   end
    728 
    729 
    730 (*===-- Basic Blocks ------------------------------------------------------===*)
    731 
    732 let test_basic_blocks () =
    733   let ty = function_type void_type [| |] in
    734   
    735   (* CHECK: Bb1
    736    *)
    737   group "entry";
    738   let fn = declare_function "X" ty m in
    739   let bb = append_block context "Bb1" fn in
    740   insist (bb = entry_block fn);
    741   ignore (build_unreachable (builder_at_end context bb));
    742   
    743   (* CHECK-NOWHERE-NOT: Bb2
    744    *)
    745   group "delete";
    746   let fn = declare_function "X2" ty m in
    747   let bb = append_block context "Bb2" fn in
    748   delete_block bb;
    749   
    750   group "insert";
    751   let fn = declare_function "X3" ty m in
    752   let bbb = append_block context "b" fn in
    753   let bba = insert_block context "a" bbb in
    754   insist ([| bba; bbb |] = basic_blocks fn);
    755   ignore (build_unreachable (builder_at_end context bba));
    756   ignore (build_unreachable (builder_at_end context bbb));
    757   
    758   (* CHECK: Bb3
    759    *)
    760   group "name/value";
    761   let fn = define_function "X4" ty m in
    762   let bb = entry_block fn in
    763   ignore (build_unreachable (builder_at_end context bb));
    764   let bbv = value_of_block bb in
    765   set_value_name "Bb3" bbv;
    766   insist ("Bb3" = value_name bbv);
    767   
    768   group "casts";
    769   let fn = define_function "X5" ty m in
    770   let bb = entry_block fn in
    771   ignore (build_unreachable (builder_at_end context bb));
    772   insist (bb = block_of_value (value_of_block bb));
    773   insist (value_is_block (value_of_block bb));
    774   insist (not (value_is_block (const_null i32_type)));
    775   
    776   begin group "iteration";
    777     let m = create_module context "temp" in
    778     let f = declare_function "Temp" (function_type i32_type [| |]) m in
    779     
    780     insist (At_end f = block_begin f);
    781     insist (At_start f = block_end f);
    782     
    783     let b1 = append_block context "One" f in
    784     let b2 = append_block context "Two" f in
    785     
    786     insist (Before b1 = block_begin f);
    787     insist (Before b2 = block_succ b1);
    788     insist (At_end f = block_succ b2);
    789     
    790     insist (After b2 = block_end f);
    791     insist (After b1 = block_pred b2);
    792     insist (At_start f = block_pred b1);
    793     
    794     let lf s x = s ^ "->" ^ value_name (value_of_block x) in
    795     insist ("->One->Two" = fold_left_blocks lf "" f);
    796     
    797     let rf x s = value_name (value_of_block x) ^ "<-" ^ s in
    798     insist ("One<-Two<-" = fold_right_blocks rf f "");
    799     
    800     dispose_module m
    801   end
    802 
    803 
    804 (*===-- Instructions ------------------------------------------------------===*)
    805 
    806 let test_instructions () =
    807   begin group "iteration";
    808     let m = create_module context "temp" in
    809     let fty = function_type void_type [| i32_type; i32_type |] in
    810     let f = define_function "f" fty m in
    811     let bb = entry_block f in
    812     let b = builder_at context (At_end bb) in
    813     
    814     insist (At_end bb = instr_begin bb);
    815     insist (At_start bb = instr_end bb);
    816     
    817     let i1 = build_add (param f 0) (param f 1) "One" b in
    818     let i2 = build_sub (param f 0) (param f 1) "Two" b in
    819     
    820     insist (Before i1 = instr_begin bb);
    821     insist (Before i2 = instr_succ i1);
    822     insist (At_end bb = instr_succ i2);
    823     
    824     insist (After i2 = instr_end bb);
    825     insist (After i1 = instr_pred i2);
    826     insist (At_start bb = instr_pred i1);
    827     
    828     let lf s x = s ^ "->" ^ value_name x in
    829     insist ("->One->Two" = fold_left_instrs lf "" bb);
    830     
    831     let rf x s = value_name x ^ "<-" ^ s in
    832     insist ("One<-Two<-" = fold_right_instrs rf bb "");
    833     
    834     dispose_module m
    835   end
    836 
    837 
    838 (*===-- Builder -----------------------------------------------------------===*)
    839 
    840 let test_builder () =
    841   let (++) x f = f x; x in
    842   
    843   begin group "parent";
    844     insist (try
    845               ignore (insertion_block (builder context));
    846               false
    847             with Not_found ->
    848               true);
    849     
    850     let fty = function_type void_type [| i32_type |] in
    851     let fn = define_function "BuilderParent" fty m in
    852     let bb = entry_block fn in
    853     let b = builder_at_end context bb in
    854     let p = param fn 0 in
    855     let sum = build_add p p "sum" b in
    856     ignore (build_ret_void b);
    857     
    858     insist (fn = block_parent bb);
    859     insist (fn = param_parent p);
    860     insist (bb = instr_parent sum);
    861     insist (bb = insertion_block b)
    862   end;
    863   
    864   group "ret void";
    865   begin
    866     (* CHECK: ret void
    867      *)
    868     let fty = function_type void_type [| |] in
    869     let fn = declare_function "X6" fty m in
    870     let b = builder_at_end context (append_block context "Bb01" fn) in
    871     ignore (build_ret_void b)
    872   end;
    873 
    874   group "ret aggregate";
    875   begin
    876       (* CHECK: ret { i8, i64 } { i8 4, i64 5 }
    877        *)
    878       let sty = struct_type context [| i8_type; i64_type |] in
    879       let fty = function_type sty [| |] in
    880       let fn = declare_function "XA6" fty m in
    881       let b = builder_at_end context (append_block context "Bb01" fn) in
    882       let agg = [| const_int i8_type 4; const_int i64_type 5 |] in
    883       ignore (build_aggregate_ret agg b)
    884   end;
    885   
    886   (* The rest of the tests will use one big function. *)
    887   let fty = function_type i32_type [| i32_type; i32_type |] in
    888   let fn = define_function "X7" fty m in
    889   let atentry = builder_at_end context (entry_block fn) in
    890   let p1 = param fn 0 ++ set_value_name "P1" in
    891   let p2 = param fn 1 ++ set_value_name "P2" in
    892   let f1 = build_uitofp p1 float_type "F1" atentry in
    893   let f2 = build_uitofp p2 float_type "F2" atentry in
    894   
    895   let bb00 = append_block context "Bb00" fn in
    896   ignore (build_unreachable (builder_at_end context bb00));
    897 
    898   group "function attribute";
    899   begin
    900       ignore (add_function_attr fn Attribute.UWTable);
    901       (* CHECK: X7{{.*}}#0
    902        * #0 is uwtable, defined at EOF.
    903        *)
    904       insist ([Attribute.UWTable] = function_attr fn);
    905   end;
    906 
    907   group "casts"; begin
    908     let void_ptr = pointer_type i8_type in
    909 
    910     (* CHECK-DAG: %build_trunc = trunc i32 %P1 to i8
    911      * CHECK-DAG: %build_trunc2 = trunc i32 %P1 to i8
    912      * CHECK-DAG: %build_trunc3 = trunc i32 %P1 to i8
    913      * CHECK-DAG: %build_zext = zext i8 %build_trunc to i32
    914      * CHECK-DAG: %build_zext2 = zext i8 %build_trunc to i32
    915      * CHECK-DAG: %build_sext = sext i32 %build_zext to i64
    916      * CHECK-DAG: %build_sext2 = sext i32 %build_zext to i64
    917      * CHECK-DAG: %build_sext3 = sext i32 %build_zext to i64
    918      * CHECK-DAG: %build_uitofp = uitofp i64 %build_sext to float
    919      * CHECK-DAG: %build_sitofp = sitofp i32 %build_zext to double
    920      * CHECK-DAG: %build_fptoui = fptoui float %build_uitofp to i32
    921      * CHECK-DAG: %build_fptosi = fptosi double %build_sitofp to i64
    922      * CHECK-DAG: %build_fptrunc = fptrunc double %build_sitofp to float
    923      * CHECK-DAG: %build_fptrunc2 = fptrunc double %build_sitofp to float
    924      * CHECK-DAG: %build_fpext = fpext float %build_fptrunc to double
    925      * CHECK-DAG: %build_fpext2 = fpext float %build_fptrunc to double
    926      * CHECK-DAG: %build_inttoptr = inttoptr i32 %P1 to i8*
    927      * CHECK-DAG: %build_ptrtoint = ptrtoint i8* %build_inttoptr to i64
    928      * CHECK-DAG: %build_ptrtoint2 = ptrtoint i8* %build_inttoptr to i64
    929      * CHECK-DAG: %build_bitcast = bitcast i64 %build_ptrtoint to double
    930      * CHECK-DAG: %build_bitcast2 = bitcast i64 %build_ptrtoint to double
    931      * CHECK-DAG: %build_bitcast3 = bitcast i64 %build_ptrtoint to double
    932      * CHECK-DAG: %build_bitcast4 = bitcast i64 %build_ptrtoint to double
    933      * CHECK-DAG: %build_pointercast = bitcast i8* %build_inttoptr to i16*
    934      *)
    935     let inst28 = build_trunc p1 i8_type "build_trunc" atentry in
    936     let inst29 = build_zext inst28 i32_type "build_zext" atentry in
    937     let inst30 = build_sext inst29 i64_type "build_sext" atentry in
    938     let inst31 = build_uitofp inst30 float_type "build_uitofp" atentry in
    939     let inst32 = build_sitofp inst29 double_type "build_sitofp" atentry in
    940     ignore(build_fptoui inst31 i32_type "build_fptoui" atentry);
    941     ignore(build_fptosi inst32 i64_type "build_fptosi" atentry);
    942     let inst35 = build_fptrunc inst32 float_type "build_fptrunc" atentry in
    943     ignore(build_fpext inst35 double_type "build_fpext" atentry);
    944     let inst37 = build_inttoptr p1 void_ptr "build_inttoptr" atentry in
    945     let inst38 = build_ptrtoint inst37 i64_type "build_ptrtoint" atentry in
    946     ignore(build_bitcast inst38 double_type "build_bitcast" atentry);
    947     ignore(build_zext_or_bitcast inst38 double_type "build_bitcast2" atentry);
    948     ignore(build_sext_or_bitcast inst38 double_type "build_bitcast3" atentry);
    949     ignore(build_trunc_or_bitcast inst38 double_type "build_bitcast4" atentry);
    950     ignore(build_pointercast inst37 (pointer_type i16_type) "build_pointercast" atentry);
    951 
    952     ignore(build_zext_or_bitcast inst28 i32_type "build_zext2" atentry);
    953     ignore(build_sext_or_bitcast inst29 i64_type "build_sext2" atentry);
    954     ignore(build_trunc_or_bitcast p1 i8_type "build_trunc2" atentry);
    955     ignore(build_pointercast inst37 i64_type "build_ptrtoint2" atentry);
    956     ignore(build_intcast inst29 i64_type "build_sext3" atentry);
    957     ignore(build_intcast p1 i8_type "build_trunc3" atentry);
    958     ignore(build_fpcast inst35 double_type "build_fpext2" atentry);
    959     ignore(build_fpcast inst32 float_type "build_fptrunc2" atentry);
    960   end;
    961 
    962   group "comparisons"; begin
    963     (* CHECK: %build_icmp_ne = icmp ne i32 %P1, %P2
    964      * CHECK: %build_icmp_sle = icmp sle i32 %P2, %P1
    965      * CHECK: %build_fcmp_false = fcmp false float %F1, %F2
    966      * CHECK: %build_fcmp_true = fcmp true float %F2, %F1
    967      * CHECK: %build_is_null{{.*}}= icmp eq{{.*}}%X0,{{.*}}null
    968      * CHECK: %build_is_not_null = icmp ne i8* %X1, null
    969      * CHECK: %build_ptrdiff
    970      *)
    971     ignore (build_icmp Icmp.Ne    p1 p2 "build_icmp_ne" atentry);
    972     ignore (build_icmp Icmp.Sle   p2 p1 "build_icmp_sle" atentry);
    973     ignore (build_fcmp Fcmp.False f1 f2 "build_fcmp_false" atentry);
    974     ignore (build_fcmp Fcmp.True  f2 f1 "build_fcmp_true" atentry);
    975     let g0 = declare_global (pointer_type i8_type) "g0" m in
    976     let g1 = declare_global (pointer_type i8_type) "g1" m in
    977     let p0 = build_load g0 "X0" atentry in
    978     let p1 = build_load g1 "X1" atentry in
    979     ignore (build_is_null p0 "build_is_null" atentry);
    980     ignore (build_is_not_null p1 "build_is_not_null" atentry);
    981     ignore (build_ptrdiff p1 p0 "build_ptrdiff" atentry);
    982   end;
    983 
    984   group "miscellaneous"; begin
    985     (* CHECK: %build_call = tail call cc63 i32 @{{.*}}(i32 signext %P2, i32 %P1)
    986      * CHECK: %build_select = select i1 %build_icmp, i32 %P1, i32 %P2
    987      * CHECK: %build_va_arg = va_arg i8** null, i32
    988      * CHECK: %build_extractelement = extractelement <4 x i32> %Vec1, i32 %P2
    989      * CHECK: %build_insertelement = insertelement <4 x i32> %Vec1, i32 %P1, i32 %P2
    990      * CHECK: %build_shufflevector = shufflevector <4 x i32> %Vec1, <4 x i32> %Vec2, <4 x i32> <i32 1, i32 1, i32 0, i32 0>
    991      * CHECK: %build_insertvalue0 = insertvalue{{.*}}%bl, i32 1, 0
    992      * CHECK: %build_extractvalue = extractvalue{{.*}}%build_insertvalue1, 1
    993      *)
    994     let ci = build_call fn [| p2; p1 |] "build_call" atentry in
    995     insist (CallConv.c = instruction_call_conv ci);
    996     set_instruction_call_conv 63 ci;
    997     insist (63 = instruction_call_conv ci);
    998     insist (not (is_tail_call ci));
    999     set_tail_call true ci;
   1000     insist (is_tail_call ci);
   1001     add_instruction_param_attr ci 1 Attribute.Sext;
   1002     add_instruction_param_attr ci 2 Attribute.Noalias;
   1003     remove_instruction_param_attr ci 2 Attribute.Noalias;
   1004 
   1005     let inst46 = build_icmp Icmp.Eq p1 p2 "build_icmp" atentry in
   1006     ignore (build_select inst46 p1 p2 "build_select" atentry);
   1007     ignore (build_va_arg
   1008       (const_null (pointer_type (pointer_type i8_type)))
   1009       i32_type "build_va_arg" atentry);
   1010 
   1011     (* Set up some vector vregs. *)
   1012     let one  = const_int i32_type 1 in
   1013     let zero = const_int i32_type 0 in
   1014     let t1 = const_vector [| one; zero; one; zero |] in
   1015     let t2 = const_vector [| zero; one; zero; one |] in
   1016     let t3 = const_vector [| one; one; zero; zero |] in
   1017     let vec1 = build_insertelement t1 p1 p2 "Vec1" atentry in
   1018     let vec2 = build_insertelement t2 p1 p2 "Vec2" atentry in
   1019     let sty = struct_type context [| i32_type; i8_type |] in
   1020 
   1021     ignore (build_extractelement vec1 p2 "build_extractelement" atentry);
   1022     ignore (build_insertelement vec1 p1 p2 "build_insertelement" atentry);
   1023     ignore (build_shufflevector vec1 vec2 t3 "build_shufflevector" atentry);
   1024 
   1025     let p = build_alloca sty "ba" atentry in
   1026     let agg = build_load p "bl" atentry in
   1027     let agg0 = build_insertvalue agg (const_int i32_type 1) 0
   1028                  "build_insertvalue0" atentry in
   1029     let agg1 = build_insertvalue agg0 (const_int i8_type 2) 1
   1030                  "build_insertvalue1" atentry in
   1031     ignore (build_extractvalue agg1 1 "build_extractvalue" atentry)
   1032   end;
   1033 
   1034   group "metadata"; begin
   1035     (* CHECK: %metadata = add i32 %P1, %P2, !test !1
   1036      * !1 is metadata emitted at EOF.
   1037      *)
   1038     let i = build_add p1 p2 "metadata" atentry in
   1039     insist ((has_metadata i) = false);
   1040 
   1041     let m1 = const_int i32_type 1 in
   1042     let m2 = mdstring context "metadata test" in
   1043     let md = mdnode context [| m1; m2 |] in
   1044 
   1045     let kind = mdkind_id context "test" in
   1046     set_metadata i kind md;
   1047 
   1048     insist ((has_metadata i) = true);
   1049     insist ((metadata i kind) = Some md);
   1050 
   1051     clear_metadata i kind;
   1052 
   1053     insist ((has_metadata i) = false);
   1054     insist ((metadata i kind) = None);
   1055 
   1056     set_metadata i kind md
   1057   end;
   1058 
   1059   group "named metadata"; begin
   1060     (* !llvm.module.flags is emitted at EOF. *)
   1061     let n1 = const_int i32_type 1 in
   1062     let n2 = mdstring context "Debug Info Version" in
   1063     let md = mdnode context [| n1; n2; n1 |] in
   1064     add_named_metadata_operand m "llvm.module.flags" md;
   1065 
   1066     insist ((get_named_metadata m "llvm.module.flags") = [| md |])
   1067   end;
   1068 
   1069   group "dbg"; begin
   1070     (* CHECK: %dbg = add i32 %P1, %P2, !dbg !2
   1071      * !2 is metadata emitted at EOF.
   1072      *)
   1073     insist ((current_debug_location atentry) = None);
   1074 
   1075     let m_line = const_int i32_type 2 in
   1076     let m_col = const_int i32_type 3 in
   1077     let m_scope = mdnode context [| |] in
   1078     let m_inlined = mdnode context [| |] in
   1079     let md = mdnode context [| m_line; m_col; m_scope; m_inlined |] in
   1080     set_current_debug_location atentry md;
   1081 
   1082     insist ((current_debug_location atentry) = Some md);
   1083 
   1084     let i = build_add p1 p2 "dbg" atentry in
   1085     insist ((has_metadata i) = true);
   1086 
   1087     clear_current_debug_location atentry
   1088   end;
   1089 
   1090   group "ret"; begin
   1091     (* CHECK: ret{{.*}}P1
   1092      *)
   1093     let ret = build_ret p1 atentry in
   1094     position_before ret atentry
   1095   end;
   1096 
   1097   (* see test/Feature/exception.ll *)
   1098   let bblpad = append_block context "Bblpad" fn in
   1099   let rt = struct_type context [| pointer_type i8_type; i32_type |] in
   1100   let ft = var_arg_function_type i32_type  [||] in
   1101   let personality = declare_function "__gxx_personality_v0" ft m in
   1102   let ztic = declare_global (pointer_type i8_type) "_ZTIc" m in
   1103   let ztid = declare_global (pointer_type i8_type) "_ZTId" m in
   1104   let ztipkc = declare_global (pointer_type i8_type) "_ZTIPKc" m in
   1105   begin
   1106       set_global_constant true ztic;
   1107       set_global_constant true ztid;
   1108       set_global_constant true ztipkc;
   1109       let lp = build_landingpad rt personality 0 "lpad"
   1110        (builder_at_end context bblpad) in begin
   1111            set_cleanup lp true;
   1112            add_clause lp ztic;
   1113            insist((pointer_type (pointer_type i8_type)) = type_of ztid);
   1114            let ety = pointer_type (pointer_type i8_type) in
   1115            add_clause lp (const_array ety [| ztipkc; ztid |]);
   1116            ignore (build_resume lp (builder_at_end context bblpad));
   1117       end;
   1118       (* CHECK: landingpad{{.*}}personality{{.*}}__gxx_personality_v0
   1119        * CHECK: cleanup
   1120        * CHECK: catch{{.*}}i8**{{.*}}@_ZTIc
   1121        * CHECK: filter{{.*}}@_ZTIPKc{{.*}}@_ZTId
   1122        * CHECK: resume
   1123        * *)
   1124   end;
   1125 
   1126   group "br"; begin
   1127     (* CHECK: br{{.*}}Bb02
   1128      *)
   1129     let bb02 = append_block context "Bb02" fn in
   1130     let b = builder_at_end context bb02 in
   1131     ignore (build_br bb02 b)
   1132   end;
   1133   
   1134   group "cond_br"; begin
   1135     (* CHECK: br{{.*}}build_br{{.*}}Bb03{{.*}}Bb00
   1136      *)
   1137     let bb03 = append_block context "Bb03" fn in
   1138     let b = builder_at_end context bb03 in
   1139     let cond = build_trunc p1 i1_type "build_br" b in
   1140     ignore (build_cond_br cond bb03 bb00 b)
   1141   end;
   1142   
   1143   group "switch"; begin
   1144     (* CHECK: switch{{.*}}P1{{.*}}SwiBlock3
   1145      * CHECK: 2,{{.*}}SwiBlock2
   1146      *)
   1147     let bb1 = append_block context "SwiBlock1" fn in
   1148     let bb2 = append_block context "SwiBlock2" fn in
   1149     ignore (build_unreachable (builder_at_end context bb2));
   1150     let bb3 = append_block context "SwiBlock3" fn in
   1151     ignore (build_unreachable (builder_at_end context bb3));
   1152     let si = build_switch p1 bb3 1 (builder_at_end context bb1) in begin
   1153         ignore (add_case si (const_int i32_type 2) bb2);
   1154         insist (switch_default_dest si = bb3);
   1155     end;
   1156   end;
   1157 
   1158   group "malloc/free"; begin
   1159       (* CHECK: call{{.*}}@malloc(i32 ptrtoint
   1160        * CHECK: call{{.*}}@free(i8*
   1161        * CHECK: call{{.*}}@malloc(i32 %
   1162        *)
   1163       let bb1 = append_block context "MallocBlock1" fn in
   1164       let m1 = (build_malloc (pointer_type i32_type) "m1"
   1165       (builder_at_end context bb1)) in
   1166       ignore (build_free m1 (builder_at_end context bb1));
   1167       ignore (build_array_malloc i32_type p1 "m2" (builder_at_end context bb1));
   1168       ignore (build_unreachable (builder_at_end context bb1));
   1169   end;
   1170 
   1171   group "indirectbr"; begin
   1172     (* CHECK: indirectbr i8* blockaddress(@X7, %IBRBlock2), [label %IBRBlock2, label %IBRBlock3]
   1173      *)
   1174     let bb1 = append_block context "IBRBlock1" fn in
   1175 
   1176     let bb2 = append_block context "IBRBlock2" fn in
   1177     ignore (build_unreachable (builder_at_end context bb2));
   1178 
   1179     let bb3 = append_block context "IBRBlock3" fn in
   1180     ignore (build_unreachable (builder_at_end context bb3));
   1181 
   1182     let addr = block_address fn bb2 in
   1183     let ibr = build_indirect_br addr 2 (builder_at_end context bb1) in
   1184     ignore (add_destination ibr bb2);
   1185     ignore (add_destination ibr bb3)
   1186   end;
   1187   
   1188   group "invoke"; begin
   1189     (* CHECK: build_invoke{{.*}}invoke{{.*}}P1{{.*}}P2
   1190      * CHECK: to{{.*}}Bb04{{.*}}unwind{{.*}}Bblpad
   1191      *)
   1192     let bb04 = append_block context "Bb04" fn in
   1193     let b = builder_at_end context bb04 in
   1194     ignore (build_invoke fn [| p1; p2 |] bb04 bblpad "build_invoke" b)
   1195   end;
   1196   
   1197   group "unreachable"; begin
   1198     (* CHECK: unreachable
   1199      *)
   1200     let bb06 = append_block context "Bb06" fn in
   1201     let b = builder_at_end context bb06 in
   1202     ignore (build_unreachable b)
   1203   end;
   1204   
   1205   group "arithmetic"; begin
   1206     let bb07 = append_block context "Bb07" fn in
   1207     let b = builder_at_end context bb07 in
   1208     
   1209     (* CHECK: %build_add = add i32 %P1, %P2
   1210      * CHECK: %build_nsw_add = add nsw i32 %P1, %P2
   1211      * CHECK: %build_nuw_add = add nuw i32 %P1, %P2
   1212      * CHECK: %build_fadd = fadd float %F1, %F2
   1213      * CHECK: %build_sub = sub i32 %P1, %P2
   1214      * CHECK: %build_nsw_sub = sub nsw i32 %P1, %P2
   1215      * CHECK: %build_nuw_sub = sub nuw i32 %P1, %P2
   1216      * CHECK: %build_fsub = fsub float %F1, %F2
   1217      * CHECK: %build_mul = mul i32 %P1, %P2
   1218      * CHECK: %build_nsw_mul = mul nsw i32 %P1, %P2
   1219      * CHECK: %build_nuw_mul = mul nuw i32 %P1, %P2
   1220      * CHECK: %build_fmul = fmul float %F1, %F2
   1221      * CHECK: %build_udiv = udiv i32 %P1, %P2
   1222      * CHECK: %build_sdiv = sdiv i32 %P1, %P2
   1223      * CHECK: %build_exact_sdiv = sdiv exact i32 %P1, %P2
   1224      * CHECK: %build_fdiv = fdiv float %F1, %F2
   1225      * CHECK: %build_urem = urem i32 %P1, %P2
   1226      * CHECK: %build_srem = srem i32 %P1, %P2
   1227      * CHECK: %build_frem = frem float %F1, %F2
   1228      * CHECK: %build_shl = shl i32 %P1, %P2
   1229      * CHECK: %build_lshl = lshr i32 %P1, %P2
   1230      * CHECK: %build_ashl = ashr i32 %P1, %P2
   1231      * CHECK: %build_and = and i32 %P1, %P2
   1232      * CHECK: %build_or = or i32 %P1, %P2
   1233      * CHECK: %build_xor = xor i32 %P1, %P2
   1234      * CHECK: %build_neg = sub i32 0, %P1
   1235      * CHECK: %build_nsw_neg = sub nsw i32 0, %P1
   1236      * CHECK: %build_nuw_neg = sub nuw i32 0, %P1
   1237      * CHECK: %build_fneg = fsub float {{.*}}0{{.*}}, %F1
   1238      * CHECK: %build_not = xor i32 %P1, -1
   1239      *)
   1240     ignore (build_add p1 p2 "build_add" b);
   1241     ignore (build_nsw_add p1 p2 "build_nsw_add" b);
   1242     ignore (build_nuw_add p1 p2 "build_nuw_add" b);
   1243     ignore (build_fadd f1 f2 "build_fadd" b);
   1244     ignore (build_sub p1 p2 "build_sub" b);
   1245     ignore (build_nsw_sub p1 p2 "build_nsw_sub" b);
   1246     ignore (build_nuw_sub p1 p2 "build_nuw_sub" b);
   1247     ignore (build_fsub f1 f2 "build_fsub" b);
   1248     ignore (build_mul p1 p2 "build_mul" b);
   1249     ignore (build_nsw_mul p1 p2 "build_nsw_mul" b);
   1250     ignore (build_nuw_mul p1 p2 "build_nuw_mul" b);
   1251     ignore (build_fmul f1 f2 "build_fmul" b);
   1252     ignore (build_udiv p1 p2 "build_udiv" b);
   1253     ignore (build_sdiv p1 p2 "build_sdiv" b);
   1254     ignore (build_exact_sdiv p1 p2 "build_exact_sdiv" b);
   1255     ignore (build_fdiv f1 f2 "build_fdiv" b);
   1256     ignore (build_urem p1 p2 "build_urem" b);
   1257     ignore (build_srem p1 p2 "build_srem" b);
   1258     ignore (build_frem f1 f2 "build_frem" b);
   1259     ignore (build_shl p1 p2 "build_shl" b);
   1260     ignore (build_lshr p1 p2 "build_lshl" b);
   1261     ignore (build_ashr p1 p2 "build_ashl" b);
   1262     ignore (build_and p1 p2 "build_and" b);
   1263     ignore (build_or p1 p2 "build_or" b);
   1264     ignore (build_xor p1 p2 "build_xor" b);
   1265     ignore (build_neg p1 "build_neg" b);
   1266     ignore (build_nsw_neg p1 "build_nsw_neg" b);
   1267     ignore (build_nuw_neg p1 "build_nuw_neg" b);
   1268     ignore (build_fneg f1 "build_fneg" b);
   1269     ignore (build_not p1 "build_not" b);
   1270     ignore (build_unreachable b)
   1271   end;
   1272   
   1273   group "memory"; begin
   1274     let bb08 = append_block context "Bb08" fn in
   1275     let b = builder_at_end context bb08 in
   1276 
   1277     (* CHECK: %build_alloca = alloca i32
   1278      * CHECK: %build_array_alloca = alloca i32, i32 %P2
   1279      * CHECK: %build_load = load volatile i32* %build_array_alloca, align 4
   1280      * CHECK: store volatile i32 %P2, i32* %build_alloca, align 4
   1281      * CHECK: %build_gep = getelementptr i32* %build_array_alloca, i32 %P2
   1282      * CHECK: %build_in_bounds_gep = getelementptr inbounds i32* %build_array_alloca, i32 %P2
   1283      * CHECK: %build_struct_gep = getelementptr inbounds{{.*}}%build_alloca2, i32 0, i32 1
   1284      * CHECK: %build_atomicrmw = atomicrmw xchg i8* %p, i8 42 seq_cst
   1285      *)
   1286     let alloca = build_alloca i32_type "build_alloca" b in
   1287     let array_alloca = build_array_alloca i32_type p2 "build_array_alloca" b in
   1288 
   1289     let load = build_load array_alloca "build_load" b in
   1290     ignore(set_alignment 4 load);
   1291     ignore(set_volatile true load);
   1292     insist(true = is_volatile load);
   1293     insist(4 = alignment load);
   1294 
   1295     let store = build_store p2 alloca b in
   1296     ignore(set_volatile true store);
   1297     ignore(set_alignment 4 store);
   1298     insist(true = is_volatile store);
   1299     insist(4 = alignment store);
   1300     ignore(build_gep array_alloca [| p2 |] "build_gep" b);
   1301     ignore(build_in_bounds_gep array_alloca [| p2 |] "build_in_bounds_gep" b);
   1302 
   1303     let sty = struct_type context [| i32_type; i8_type |] in
   1304     let alloca2 = build_alloca sty "build_alloca2" b in
   1305     ignore(build_struct_gep alloca2 1 "build_struct_gep" b);
   1306 
   1307     let p = build_alloca i8_type "p" b in
   1308     ignore(build_atomicrmw AtomicRMWBinOp.Xchg p (const_int i8_type 42)
   1309               AtomicOrdering.SequentiallyConsistent false "build_atomicrmw"
   1310               b);
   1311 
   1312     ignore(build_unreachable b)
   1313   end;
   1314 
   1315   group "string"; begin
   1316     let bb09 = append_block context "Bb09" fn in
   1317     let b = builder_at_end context bb09 in
   1318     let p = build_alloca (pointer_type i8_type) "p" b in
   1319     (* build_global_string is emitted above.
   1320      * CHECK: store{{.*}}build_global_string1{{.*}}p
   1321      * *)
   1322     ignore (build_global_string "stringval" "build_global_string" b);
   1323     let g = build_global_stringptr "stringval" "build_global_string1" b in
   1324     ignore (build_store g p b);
   1325     ignore(build_unreachable b);
   1326   end;
   1327 
   1328   group "phi"; begin
   1329     (* CHECK: PhiNode{{.*}}P1{{.*}}PhiBlock1{{.*}}P2{{.*}}PhiBlock2
   1330      *)
   1331     let b1 = append_block context "PhiBlock1" fn in
   1332     let b2 = append_block context "PhiBlock2" fn in
   1333     
   1334     let jb = append_block context "PhiJoinBlock" fn in
   1335     ignore (build_br jb (builder_at_end context b1));
   1336     ignore (build_br jb (builder_at_end context b2));
   1337     let at_jb = builder_at_end context jb in
   1338     
   1339     let phi = build_phi [(p1, b1)] "PhiNode" at_jb in
   1340     insist ([(p1, b1)] = incoming phi);
   1341     
   1342     add_incoming (p2, b2) phi;
   1343     insist ([(p1, b1); (p2, b2)] = incoming phi);
   1344     
   1345     ignore (build_unreachable at_jb);
   1346   end
   1347 
   1348 (* End-of-file checks for things like metdata and attributes.
   1349  * CHECK: attributes #0 = {{.*}}uwtable{{.*}}
   1350  * CHECK: !llvm.module.flags = !{!0}
   1351  * CHECK: !0 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
   1352  * CHECK: !1 = metadata !{i32 1, metadata !"metadata test"}
   1353  * CHECK: !2 = metadata !{i32 2, i32 3, metadata !3, metadata !3}
   1354  *)
   1355 
   1356 (*===-- Pass Managers -----------------------------------------------------===*)
   1357 
   1358 let test_pass_manager () =
   1359   let (++) x f = ignore (f x); x in
   1360 
   1361   begin group "module pass manager";
   1362     ignore (PassManager.create ()
   1363              ++ PassManager.run_module m
   1364              ++ PassManager.dispose)
   1365   end;
   1366   
   1367   begin group "function pass manager";
   1368     let fty = function_type void_type [| |] in
   1369     let fn = define_function "FunctionPassManager" fty m in
   1370     ignore (build_ret_void (builder_at_end context (entry_block fn)));
   1371     
   1372     ignore (PassManager.create_function m
   1373              ++ PassManager.initialize
   1374              ++ PassManager.run_function fn
   1375              ++ PassManager.finalize
   1376              ++ PassManager.dispose)
   1377   end
   1378 
   1379 
   1380 (*===-- Memory Buffer -----------------------------------------------------===*)
   1381 
   1382 let test_memory_buffer () =
   1383   group "memory buffer";
   1384   let buf = MemoryBuffer.of_string "foobar" in
   1385   insist ((MemoryBuffer.as_string buf) = "foobar")
   1386 
   1387 
   1388 (*===-- Writer ------------------------------------------------------------===*)
   1389 
   1390 let test_writer () =
   1391   group "valid";
   1392   insist (match Llvm_analysis.verify_module m with
   1393           | None -> true
   1394           | Some msg -> prerr_string msg; false);
   1395 
   1396   group "writer";
   1397   insist (write_bitcode_file m filename);
   1398   
   1399   dispose_module m
   1400 
   1401 
   1402 (*===-- Driver ------------------------------------------------------------===*)
   1403 
   1404 let _ =
   1405   suite "conversion"       test_conversion;
   1406   suite "target"           test_target;
   1407   suite "constants"        test_constants;
   1408   suite "global values"    test_global_values;
   1409   suite "global variables" test_global_variables;
   1410   suite "uses"             test_uses;
   1411   suite "users"            test_users;
   1412   suite "aliases"          test_aliases;
   1413   suite "functions"        test_functions;
   1414   suite "params"           test_params;
   1415   suite "basic blocks"     test_basic_blocks;
   1416   suite "instructions"     test_instructions;
   1417   suite "builder"          test_builder;
   1418   suite "pass manager"     test_pass_manager;
   1419   suite "memory buffer"    test_memory_buffer;
   1420   suite "writer"           test_writer; (* Keep this last; it disposes m. *)
   1421   exit !exit_status
   1422