gdb.log

$ gdb --args /home/dan/Source/perl6/install/bin/moar --libpath="blib" --libpath="/home/dan/Source/perl6/install/share/nqp/lib" --libpath="/home/dan/Source/perl6/install/share/nqp/lib" perl6.moarvm --nqp-lib=blib --setting=NULL --ll-exception --optimize=3 --target=mbc --stagestats --output=CORE.setting.moarvm gen/moar/CORE.setting
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Reading symbols from /home/dan/Source/perl6/install/bin/moar...done.
(gdb) b MVM_exception_throw_adhoc
Function "MVM_exception_throw_adhoc" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 (MVM_exception_throw_adhoc) pending.
(gdb) r
Starting program: /home/dan/Source/perl6/install/bin/moar --libpath=blib --libpath=/home/dan/Source/perl6/install/share/nqp/lib --libpath=/home/dan/Source/perl6/install/share/nqp/lib perl6.moarvm --nqp-lib=blib --setting=NULL --ll-exception --optimize=3 --target=mbc --stagestats --output=CORE.setting.moarvm gen/moar/CORE.setting
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7ffff6354700 (LWP 26724)]
Stage start      :   0.000
Stage parse      : 
Thread 1 "moar" hit Breakpoint 1, MVM_exception_throw_adhoc (tc=0x555555758c40, messageFormat=messageFormat@entry=0x7ffff7793a0e "Cannot invoke null object") at src/core/exceptions.c:861
861     void MVM_exception_throw_adhoc(MVMThreadContext *tc, const char *messageFormat, ...) {
(gdb) bt
#0  MVM_exception_throw_adhoc (tc=0x555555758c40, messageFormat=messageFormat@entry=0x7ffff7793a0e "Cannot invoke null object") at src/core/exceptions.c:861
#1  0x00007ffff7692e8d in MVM_frame_find_invokee_multi_ok (tc=0x555555758c40, code=<optimized out>, tweak_cs=<optimized out>, args=<optimized out>, was_multi=<optimized out>) at src/core/frame.c:1713
#2  0x00007ffff767675b in MVM_interp_run (tc=tc@entry=0x555555758c40, initial_invoke=0x0, invoke_data=0x7fffffffd9d8) at src/core/interp.c:982
#3  0x00007ffff7752fa5 in MVM_vm_run_file (instance=0x555555758260, filename=<optimized out>) at src/moar.c:401
#4  0x00005555555554c0 in main (argc=13, argv=0x7fffffffdd68) at src/main.c:256
(gdb)

interp.c

            OP(sp_findmeth): {
                /* Obtain object and cache index; see if we get a match. */
                MVMObject *obj = GET_REG(cur_op, 2).o;
                MVMuint16  idx = GET_UI16(cur_op, 8);
                if ((MVMSTable *)tc->cur_frame->effective_spesh_slots[idx] == STABLE(obj)) {
                    GET_REG(cur_op, 0).o = (MVMObject *)tc->cur_frame->effective_spesh_slots[idx + 1];
                    cur_op += 10;
                }
                else {
                    /* May invoke, so pre-increment op counter */
                    MVMString *name = MVM_cu_string(tc, cu, GET_UI32(cur_op, 4));
                    MVMRegister *res = &GET_REG(cur_op, 0);
                    cur_op += 10;
                    MVM_6model_find_method_spesh(tc, obj, name, idx, res);

                }
                goto NEXT;
            }

jit.log

====================================
append label: 18
Cannot handle DEOPT_ONE (ins=sp_decont)
append_ins: <sp_decont>
append invokish control guard
append label: 19
Build tree out of: [sp_findmeth, ]
Starting dump of JIT expression tree
====================================
digraph {
  n_0017 [label="TC"];
  n_0018 [label="ADDR(0x1b0)"];
    n_0018 -> n_0017;
  n_0021 [label="LOAD(0x8)"];
    n_0021 -> n_0018;
  n_0024 [label="ADDR(0x78)"];
    n_0024 -> n_0021;
  n_0027 [label="LOAD(0x8)"];
    n_0027 -> n_0024;
  n_0014 [label="CONST(0xf, 0x2)"];
  n_0030 [label="IDX(0x8)"];
    n_0030 -> n_0027;
    n_0030 -> n_0014;
  n_0004 [label="LOCAL"];
  n_0005 [label="ADDR(0x50)"];
    n_0005 -> n_0004;
  n_0008 [label="LOAD(0x8)"];
    n_0008 -> n_0005;
  n_0034 [label="ADDR(0x10)"];
    n_0034 -> n_0008;
  n_0037 [label="LOAD(0x8)"];
    n_0037 -> n_0034;
  n_0040 [label="EQ"];
    n_0040 -> n_0030;
    n_0040 -> n_0037;
  n_0000 [label="LOCAL"];
  n_0001 [label="ADDR(0x48)"];
    n_0001 -> n_0000;
  n_0043 [label="TC"];
  n_0044 [label="ADDR(0x1b0)"];
    n_0044 -> n_0043;
  n_0047 [label="LOAD(0x8)"];
    n_0047 -> n_0044;
  n_0050 [label="ADDR(0x78)"];
    n_0050 -> n_0047;
  n_0053 [label="LOAD(0x8)"];
    n_0053 -> n_0050;
  n_0056 [label="CONST(0x1, 0x8)"];
  n_0059 [label="ADD"];
    n_0059 -> n_0014;
    n_0059 -> n_0056;
  n_0062 [label="IDX(0x8)"];
    n_0062 -> n_0053;
    n_0062 -> n_0059;
  n_0066 [label="STORE(0x8)"];
    n_0066 -> n_0001;
    n_0066 -> n_0062;
  n_0070 [label="CONST(0x7f86ae3fddc0, 0x8)"];
  n_0073 [label="TC"];
  n_0074 [label="CARG(0x5)"];
    n_0074 -> n_0073;
  n_0077 [label="CARG(0x5)"];
    n_0077 -> n_0008;
  n_0080 [label="CONST(0x7f86ae4725d0, 0x8)"];
  n_0083 [label="TC"];
  n_0084 [label="CARG(0x5)"];
    n_0084 -> n_0083;
  n_0087 [label="CU"];
  n_0088 [label="CARG(0x5)"];
    n_0088 -> n_0087;
  n_0011 [label="CONST(0x2a6, 0x4)"];
  n_0091 [label="CARG(0x3)"];
    n_0091 -> n_0011;
  n_0094 [label="ARGLIST"];
    n_0094 -> n_0084;
    n_0094 -> n_0088;
    n_0094 -> n_0091;
  n_0099 [label="CALL(0x8)"];
    n_0099 -> n_0080;
    n_0099 -> n_0094;
  n_0103 [label="CARG(0x5)"];
    n_0103 -> n_0099;
  n_0106 [label="CARG(0x3)"];
    n_0106 -> n_0014;
  n_0109 [label="CARG(0x5)"];
    n_0109 -> n_0001;
  n_0112 [label="ARGLIST"];
    n_0112 -> n_0074;
    n_0112 -> n_0077;
    n_0112 -> n_0103;
    n_0112 -> n_0106;
    n_0112 -> n_0109;
  n_0119 [label="CALLV"];
    n_0119 -> n_0070;
    n_0119 -> n_0112;
  n_0122 [label="IFV"];
    n_0122 -> n_0040;
    n_0122 -> n_0066;
    n_0122 -> n_0119;
 }
End dump of JIT expression tree
====================================   

rakudo_backtrace.log

/home/dan/Source/perl6/install/bin/moar --libpath="blib" --libpath="/home/dan/Source/perl6/install/share/nqp/lib" --libpath="/home/dan/Source/perl6/install/share/nqp/lib" perl6.moarvm --nqp-lib=blib --setting=NULL --ll-exception --optimize=3 --target=mbc --stagestats --output=CORE.setting.moarvm gen/moar/CORE.setting
Stage start      :   0.000
Stage parse      : Cannot invoke null object
   at gen/moar/Metamodel.nqp:1098  (blib/Perl6/Metamodel.moarvm:find_method)
 from gen/moar/BOOTSTRAP.nqp:1434  (blib/Perl6/BOOTSTRAP.moarvm:)
 from gen/moar/BOOTSTRAP.nqp:1662  (blib/Perl6/BOOTSTRAP.moarvm:)
 from gen/moar/Metamodel.nqp:2535  (blib/Perl6/Metamodel.moarvm:specialize_with)
 from gen/moar/Metamodel.nqp:2517  (blib/Perl6/Metamodel.moarvm:)
 from gen/moar/stage2/NQPCORE.setting:1039  (/home/dan/Source/perl6/install/share/nqp/lib/NQPCORE.setting.moarvm:protect)
 from gen/moar/Metamodel.nqp:2499  (blib/Perl6/Metamodel.moarvm:specialize)
 from gen/moar/Metamodel.nqp:2716  (blib/Perl6/Metamodel.moarvm:specialize)
 from gen/moar/Metamodel.nqp:2282  (blib/Perl6/Metamodel.moarvm:specialize)
 from gen/moar/Metamodel.nqp:3071  (blib/Perl6/Metamodel.moarvm:compose)
 from gen/moar/Metamodel.nqp:1344  (blib/Perl6/Metamodel.moarvm:generate_mixin)
 from gen/moar/Metamodel.nqp:1295  (blib/Perl6/Metamodel.moarvm:mixin)
 from gen/moar/Perl6-Actions.nqp:3758  (blib/Perl6/Actions.moarvm:routine_def)
 from gen/moar/stage2/QRegex.nqp:1624  (/home/dan/Source/perl6/install/share/nqp/lib/QRegex.moarvm:!cursor_pass)
 from src/Perl6/Grammar.nqp:2842  (blib/Perl6/Grammar.moarvm:routine_def)
 from <unknown>:1  (blib/Perl6/Grammar.moarvm:routine_declarator:sym<sub>)
 from gen/moar/stage2/QRegex.nqp:1721  (/home/dan/Source/perl6/install/share/nqp/lib/QRegex.moarvm:!protoregex)
 from <unknown>:1  (blib/Perl6/Grammar.moarvm:routine_declarator)
 from <unknown>:1  (blib/Perl6/Grammar.moarvm:term:sym<routine_declarator>)
 from gen/moar/stage2/QRegex.nqp:1721  (/home/dan/Source/perl6/install/share/nqp/lib/QRegex.moarvm:!protoregex)
 from src/Perl6/Grammar.nqp:4009  (blib/Perl6/Grammar.moarvm:termish)
 from gen/moar/stage2/NQPHLL.nqp:883  (/home/dan/Source/perl6/install/share/nqp/lib/NQPHLL.moarvm:EXPR)
 from src/Perl6/Grammar.nqp:4055  (blib/Perl6/Grammar.moarvm:EXPR)
 from src/Perl6/Grammar.nqp:1335  (blib/Perl6/Grammar.moarvm:statement)
 from src/Perl6/Grammar.nqp:1267  (blib/Perl6/Grammar.moarvm:statementlist)
 from gen/moar/stage2/NQPHLL.nqp:1113  (/home/dan/Source/perl6/install/share/nqp/lib/NQPHLL.moarvm:LANG)
 from src/Perl6/Grammar.nqp:1709  (blib/Perl6/Grammar.moarvm:FOREIGN_LANG)
 from src/Perl6/Grammar.nqp:1231  (blib/Perl6/Grammar.moarvm:comp_unit)
 from src/Perl6/Grammar.nqp:532  (blib/Perl6/Grammar.moarvm:TOP)
 from gen/moar/stage2/QRegex.nqp:2330  (/home/dan/Source/perl6/install/share/nqp/lib/QRegex.moarvm:parse)
 from gen/moar/stage2/NQPHLL.nqp:1881  (/home/dan/Source/perl6/install/share/nqp/lib/NQPHLL.moarvm:parse)
 from gen/moar/stage2/NQPHLL.nqp:1797  (/home/dan/Source/perl6/install/share/nqp/lib/NQPHLL.moarvm:execute_stage)
 from gen/moar/stage2/NQPHLL.nqp:1830  (/home/dan/Source/perl6/install/share/nqp/lib/NQPHLL.moarvm:run)
 from gen/moar/stage2/NQPHLL.nqp:1833  (/home/dan/Source/perl6/install/share/nqp/lib/NQPHLL.moarvm:)
 from gen/moar/stage2/NQPHLL.nqp:1819  (/home/dan/Source/perl6/install/share/nqp/lib/NQPHLL.moarvm:compile)
 from gen/moar/stage2/NQPHLL.nqp:1519  (/home/dan/Source/perl6/install/share/nqp/lib/NQPHLL.moarvm:eval)
 from gen/moar/stage2/NQPHLL.nqp:1774  (/home/dan/Source/perl6/install/share/nqp/lib/NQPHLL.moarvm:evalfiles)
 from gen/moar/stage2/NQPHLL.nqp:1699  (/home/dan/Source/perl6/install/share/nqp/lib/NQPHLL.moarvm:command_eval)
 from src/Perl6/Compiler.nqp:42  (blib/Perl6/Compiler.moarvm:command_eval)
 from gen/moar/stage2/NQPHLL.nqp:1625  (/home/dan/Source/perl6/install/share/nqp/lib/NQPHLL.moarvm:command_line)
 from gen/moar/main.nqp:47  (perl6.moarvm:MAIN)
 from gen/moar/main.nqp:38  (perl6.moarvm:<mainline>)
 from <unknown>:1  (perl6.moarvm:<main>)
 from <unknown>:1  (perl6.moarvm:<entry>)
Makefile:498: recipe for target 'CORE.setting.moarvm' failed
make: *** [CORE.setting.moarvm] Error 1

template

(template: sp_findmeth!
  (ifv
    (eq (^spesh_slot $3) (^stable $1))
    (store $0 (^spesh_slot (add $3 (const 1 int_sz))) ptr_sz)
    (callv (^func &MVM_6model_find_method_spesh)
      (arglist
        (carg (tc) ptr)
        (carg $1 ptr)
        (carg (^cu_string $2) ptr)
        (carg $3 int)
        (carg $0 ptr)))))