Sorry, sometimes I even confuse myself ;) Okay, so I attached the original file I was sent. It states the Raw source and the "optimized" code (and also uses the crankshaft optimizing compiler of v8). Nevertheless, when I try to run the function stated in the Raw code, I do not get any optimized code. But here is clearly says "optimized"... Do I miss some parameter for d8?
If I still confuse you, just tell me :D Am Dienstag, 22. September 2015 10:59:57 UTC+2 schrieb Andreas Rossberg: > > Not sure I understand. If nothing is printed, are you sure the function > gets optimised at all? > > On 22 September 2015 at 10:42, D T <[email protected] <javascript:>> > wrote: > >> Thanks for your quick answer, Andreas! >> >> So, I got the snippet I showed you avove by mail to look over the ASM >> code (I dont have much experience with Javascript ;) ). >> When run the d8 as follows: >> v8/out/ia32.release/d8 --print_opt_code test.js >> >> With the code printed in the RAW section (slightly modified, like): >> function foo(n) >> { >> return Math.floor(Math.random() * n); >> } >> >> V8 prints just nothing... >> Am I missing something? >> >> >> Am Dienstag, 22. September 2015 08:34:46 UTC+2 schrieb Andreas Rossberg: >>> >>> The printed raw source _is_ the exact source of that individual function >>> (minus the 'function' prefix). What are you missing? >>> >>> On 21 September 2015 at 23:49, D T <[email protected]> wrote: >>> >>>> Hi v8 users, >>>> >>>> I am using d8 version 4.7.0 on Ubuntu Linux vivid. I played around with >>>> d8 a little bit and used the following command line: >>>> user@debugbox: v8/out/ia32.release/d8 --print_opt_code test.js >>>> >>>> >>>> >>>> >>>> Which leads to the following output: >>>> --- Raw source --- >>>> (n) >>>> { >>>> return Math.floor(Math.random() * n); >>>> } >>>> >>>> >>>> >>>> >>>> --- Optimized code --- >>>> optimization_id = 0 >>>> source_position = 27528 >>>> kind = OPTIMIZED_FUNCTION >>>> name = rnd >>>> stack_slots = 2 >>>> compiler = crankshaft >>>> Instructions (size = 612) >>>> 0x2020e060 0 55 push ebp >>>> 0x2020e061 1 89e5 mov ebp,esp >>>> 0x2020e063 3 56 push esi >>>> 0x2020e064 4 57 push edi >>>> 0x2020e065 5 83ec08 sub esp,0x8 >>>> 0x2020e068 8 50 push eax >>>> 0x2020e069 9 c7c002000000 mov eax,0x2 >>>> 0x2020e06f 15 c70484efdeefbe mov [esp+eax*4],0xbeefdeef >>>> 0x2020e076 22 48 dec eax >>>> 0x2020e077 23 75f6 jnz 15 (0x2020e06f) >>>> 0x2020e079 25 58 pop eax >>>> 0x2020e07a 26 c745f400000000 mov [ebp-0xc],0x0 >>>> 0x2020e081 33 8b45fc mov eax,[ebp-0x4] >>>> 0x2020e084 36 8945f0 mov [ebp-0x10],eax >>>> 0x2020e087 39 89c6 mov esi,eax >>>> 0x2020e089 41 3b25241aa009 cmp esp,[0x9a01a24] ;; >>>> external reference (StackGuard::address_of_jslimit()) >>>> 0x2020e08f 47 7305 jnc 54 (0x2020e096) >>>> 0x2020e091 49 e8ea15321b call StackCheck (0x3b52f680) ;; >>>> code: BUILTIN >>>> 0x2020e096 54 b805cfb729 mov eax,0x29b7cf05 >>>> [snip] >>>> >>>> >>>> >>>> Is there any way, to print the _original_ javascript code I feeded into >>>> v8 (since the raw source here is not the exact same code as the input >>>> code), before printing the optimized, corresponding code? >>>> >>>> Thanks! >>>> >>>> -- >>>> -- >>>> v8-users mailing list >>>> [email protected] >>>> http://groups.google.com/group/v8-users >>>> --- >>>> You received this message because you are subscribed to the Google >>>> Groups "v8-users" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> -- >> -- >> v8-users mailing list >> [email protected] <javascript:> >> http://groups.google.com/group/v8-users >> --- >> You received this message because you are subscribed to the Google Groups >> "v8-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- -- v8-users mailing list [email protected] http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
optimized.tar.gz
Description: Binary data
