[Tarantool-patches] [PATCH luajit] FFI: Add tonumber() specialization for failed conversions.

[Sergey Kaplun]

Hi, Sergos!

Thanks for the review!

On 20.09.22, sergos wrote:
> First of all:
> 
> 	s.ostanevich at s-ostanevich2:~/workspaces/t.sergos % uname -a                                                 
> 	Darwin s-ostanevich2 21.6.0 Darwin Kernel Version 21.6.0: Mon Aug 22 20:17:10 PDT 2022; root:xnu-8020.140.49~2/RELEASE_X86_64 x86_64
> 
> Then I just built Tarantool with ninja:

I tried run the test suite with ninja, but it's failed:
| $ ninja -C build tarantool-tests
| ...
| /home/burii/builds_workspace/tarantool/master/third_party/luajit/test/tarantool-tests/lj-408.test.lua ...................................... 
| not ok - recorded with NULL and converted for 0LL
| Dubious, test returned 1 (wstat 256, 0x100)
| Failed 1/4 subtests 
|...
| ninja: build stopped: subcommand failed.

> 
> 	Tarantool 2.11.0-entrypoint-494-gdc147ec91
> 	Target: Darwin-x86_64-debug
> 
> Then I brought the test as a patch from the mail and run ninja test.

May you check the test output running without ninja like the follwing,
please:

| $ ../src/tarantool app-tap/lj-408-tonumber-cdata-record.test.lua 
| TAP version 13
| 1..4
| ok - recorded with NULL and not converted for NULL
| not ok - recorded with NULL and converted for 0LL
|   ---
|   filename: app-tap/lj-408-tonumber-cdata-record.test.lua
|   line: 0
|   trace:
|   - line: 0
|     source: '@app-tap/lj-408-tonumber-cdata-record.test.lua'
|     filename: app-tap/lj-408-tonumber-cdata-record.test.lua
|     what: main
|     namewhat: 
|     src: app-tap/lj-408-tonumber-cdata-record.test.lua
|   ...
| ok - recorded with 0LL and converted for 0LL
| ok - recorded with 0LL and not converted for NULL
| # failed subtest: 1

Also, please, check `jit.dump()` output. Maybe there is not trace for
some reason.
You can run the following command:
| $ ../src/tarantool -e 'require"jit.dump".start("ib")' app-tap/lj-408-tonumber-cdata-record.test.lua

The start of output should be the following without the patch.

| 1..4
| ---- TRACE 1 start lj-408-tonumber-cdata-record.test.lua:17
| 0001  GGET     1   0      ; "tonumber"
| 0002  MOV      2   0
| 0003  CALL     1   2   2
| 0000  . FUNCC               ; tonumber
| 0004  RET1     1   2
| ---- TRACE 1 IR
| 0001    fun SLOAD  #0    R
| 0002    tab FLOAD  0001  func.env
| 0003    int FLOAD  0002  tab.hmask
| 0004 >  int EQ     0003  +63 
| 0005    p32 FLOAD  0002  tab.node
| 0006 >  p32 HREFK  0005  "tonumber" @8
| 0007 >  fun HLOAD  0006
| 0008 >  cdt SLOAD  #1    T
| 0009 >  fun EQ     0007  tonumber
| ---- TRACE 1 stop -> return
| ...

> 
> The output says the test passes, while sources contains no patch. Am I missing something?
> 
> Sergos
> 

<snipped>

> >  
> 

-- 
Best regards,
Sergey Kaplun