[Octave-bug-tracker] [bug #65304] bytecode compiler fails with VM error 5274

[Petter]

Follow-up Comment #2, bug#65304 (group octave):

Here are two patches that should solve the issue.

The first patch allows for more than 255 arguments, up to 2^16-1 in an index
operation.

The other patch allows for more than 255, up to 2^15-1, named arguments or
return symbols when compiling a function.


Allow more than 255 arguments to index operations in bytecode (bug #65304)

Change some opcodes to use 2 bytes for number of args and use them when
the number of args is bigger than 255. INDEX_STRUCT_SUBCALL,
INDEX_STRUCT_CALL,
WORDCMD, WORDCMD_NX and INDEX_OBJ.

* pt-bytecode-vm.cc: Use two bytes for number of args for the opcodes
* pt-bytecode-walk.cc: Use the opcodes when many args


Support more than 255 named arguments and returns in the bytecode interpreter
(bug #65304)

Use two bytes to store the amount of argument symbols and return symbols, to
allow
for 2^15-1 symbols. Replace magic anon. fn. marker -128 with -32768.

* pt-bytecode-vm-internal.h: Change size to two bytes
* pt-bytecode-vm.cc: Change size to two bytes
* pt-bytecode-walk.cc: Emit two bytes
                       Error check new limits
* bytecode_subfuncs.m: Update tests


(file #55703, file #55704)

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Additional Item Attachment:

File name: octave_33190.patch             Size:7 KB
    <https://file.savannah.gnu.org/file/octave_33190.patch?file_id=55703>

File name: octave_33191.patch             Size:16 KB
    <https://file.savannah.gnu.org/file/octave_33191.patch?file_id=55704>


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