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* Re: c++/10060: ICE on huge file (300k lines)
@ 2003-05-09 16:36 Andrew Pinski
0 siblings, 0 replies; 5+ messages in thread
From: Andrew Pinski @ 2003-05-09 16:36 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
The following reply was made to PR c++/10060; it has been noted by GNATS.
From: Andrew Pinski <pinskia@physics.uc.edu>
To: "Giovanni Bajo" <giovannibajo@libero.it>
Cc: Andrew Pinski <pinskia@physics.uc.edu>, <andreas@florath.net>,
<gcc-gnats@gcc.gnu.org>, <gcc-bugs@gcc.gnu.org>, <nobody@gcc.gnu.org>,
<gcc-prs@gcc.gnu.org>
Subject: Re: c++/10060: ICE on huge file (300k lines)
Date: Fri, 9 May 2003 12:31:50 -0400
That seems like a good idea, since copy_rtx_if_shared is in emit-rtl.c.
Thanks,
Andrew Pinski
On Friday, May 9, 2003, at 09:10 US/Eastern, Giovanni Bajo wrote:
> Andrew Pinski <pinskia@physics.uc.edu> wrote:
>
>>> 00281958 ggc_alloc (55, 0, 0, 550404, 0, 0)
>>> 00129f98 copy_rtx_if_shared (0, 17527728, 0, 33a5c8, 2, 55) + 170
>>> 00129f10 copy_rtx_if_shared (17527710, 17527b60, 0, 1, 33a5c8, 4c) +
>>> e8
>>> 00129f10 copy_rtx_if_shared (0, 17527f98, 0, 0, 33a5c8, 3) + e8
>>> 00129f10 copy_rtx_if_shared (0, 175303d8, 0, 0, 33a5c8, 3) + e8
>>> 00129f10 copy_rtx_if_shared (0, 17530810, 0, 0, 33a5c8, 3) + e8
>
>> This looks like a stack overflow, a temporary fix is to up the limit
>> on
>> the stacksize.
>> The real fix is to change copy_rtx_if_shared to be non-recursive.
>
> I'm not confident with internals of GCC, but I guess this bug should be
> moved to the "middle-end" section. Do you agree, Andrew?
>
> Giovanni Bajo
>
>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: c++/10060: ICE on huge file (300k lines)
@ 2003-05-09 13:16 Giovanni Bajo
0 siblings, 0 replies; 5+ messages in thread
From: Giovanni Bajo @ 2003-05-09 13:16 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
The following reply was made to PR c++/10060; it has been noted by GNATS.
From: "Giovanni Bajo" <giovannibajo@libero.it>
To: <andreas@florath.net>,
"Andrew Pinski" <pinskia@physics.uc.edu>
Cc: "Andrew Pinski" <pinskia@physics.uc.edu>,
<gcc-gnats@gcc.gnu.org>,
<gcc-bugs@gcc.gnu.org>,
<nobody@gcc.gnu.org>,
<gcc-prs@gcc.gnu.org>
Subject: Re: c++/10060: ICE on huge file (300k lines)
Date: Fri, 9 May 2003 15:10:15 +0200
Andrew Pinski <pinskia@physics.uc.edu> wrote:
>> 00281958 ggc_alloc (55, 0, 0, 550404, 0, 0)
>> 00129f98 copy_rtx_if_shared (0, 17527728, 0, 33a5c8, 2, 55) + 170
>> 00129f10 copy_rtx_if_shared (17527710, 17527b60, 0, 1, 33a5c8, 4c) +
>> e8
>> 00129f10 copy_rtx_if_shared (0, 17527f98, 0, 0, 33a5c8, 3) + e8
>> 00129f10 copy_rtx_if_shared (0, 175303d8, 0, 0, 33a5c8, 3) + e8
>> 00129f10 copy_rtx_if_shared (0, 17530810, 0, 0, 33a5c8, 3) + e8
> This looks like a stack overflow, a temporary fix is to up the limit on
> the stacksize.
> The real fix is to change copy_rtx_if_shared to be non-recursive.
I'm not confident with internals of GCC, but I guess this bug should be
moved to the "middle-end" section. Do you agree, Andrew?
Giovanni Bajo
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: c++/10060: ICE on huge file (300k lines)
@ 2003-05-09 13:06 Andrew Pinski
0 siblings, 0 replies; 5+ messages in thread
From: Andrew Pinski @ 2003-05-09 13:06 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
The following reply was made to PR c++/10060; it has been noted by GNATS.
From: Andrew Pinski <pinskia@physics.uc.edu>
To: <andreas@florath.net>
Cc: Andrew Pinski <pinskia@physics.uc.edu>, gcc-gnats@gcc.gnu.org,
gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org, gcc-prs@gcc.gnu.org,
giovannibajo@libero.it
Subject: Re: c++/10060: ICE on huge file (300k lines)
Date: Fri, 9 May 2003 09:01:54 -0400
This looks like a stack overflow, a temporary fix is to up the limit on
the stacksize.
The real fix is to change copy_rtx_if_shared to be non-recursive.
Thanks,
Andrew Pinski
On Friday, May 9, 2003, at 08:56 US/Eastern, <andreas@florath.net>
wrote:
>
> Hello!
>
>
> The numbers are 74799 (which works) and 74800 (which failes).
>
> Maybe one additional hint: I had a look at the stack from the
> core from 88511. It says:
>
> 00281958 ggc_alloc (55, 0, 0, 550404, 0, 0)
> 00129f98 copy_rtx_if_shared (0, 17527728, 0, 33a5c8, 2, 55) + 170
> 00129f10 copy_rtx_if_shared (17527710, 17527b60, 0, 1, 33a5c8, 4c) +
> e8
> 00129f10 copy_rtx_if_shared (0, 17527f98, 0, 0, 33a5c8, 3) + e8
> 00129f10 copy_rtx_if_shared (0, 175303d8, 0, 0, 33a5c8, 3) + e8
> 00129f10 copy_rtx_if_shared (0, 17530810, 0, 0, 33a5c8, 3) + e8
> ***
> [there are 74816 lines with copy_rtx_if_shared only with different
> second argument.]
> ***
> 00129f10 copy_rtx_if_shared (0, 33e82498, 0, 0, 33a5c8, 3) + e8
> 00129f10 copy_rtx_if_shared (0, 33e828d0, 0, 0, 33a5c8, 3) + e8
> 00129f10 copy_rtx_if_shared (0, 33e82d08, 0, 0, 33a5c8, 3) + e8
> 00129f10 copy_rtx_if_shared (0, 3, 0, 0, 33a5c8, 3) + e8
> 00129f10 copy_rtx_if_shared (0, 2, 362cee40, 0, 33a5c8, 3) + e8
> 00129948 unshare_all_rtl (a895e80, 18b2a50, 18b2a50, 18b2a50,
> 11df4a80,
> 1906e00) + 6c
> 002635f0 rest_of_compilation (a895e80, 40d4d, 3d2000, 3d2400, dbe04,
> 3b9000) + 478
> 000befc4 genrtl_finish_function (a895e80, a895e80, 0, 1906e00, 0,
> 40d4d) + 68
> 000bec60 expand_body (a895e80, a8aca80, a6, 0, 0, 0) + 230
> 00094868 yyparse (3f1c08, ffbee710, 3e5000, 0, 31e000, ffbee71a) +
> 9bc
> 000dc080 c_common_parse_file (0, ff33fa9c, 0, 3d2b38, dc048, 3b9000) +
> 38
> 00262bdc compile_file (32e058, ffbeeb20, 1, 0, 0, 393398) + 34
> 00267fa8 do_compile (3ebc00, ffbeead4, 0, 0, 0, 0) + 84
> 0026806c toplev_main (15, ffbeead4, ffbeeb2c, 3c8680, 0, 0) + 5c
> 0003d20c _start (0, 0, 0, 0, 0, 0) + 5c
>
>
> If I can help you (sending some file, try a patch, ...), just
> drop me a mail.
>
>
> Best regards
>
> Andreas Florath
> andreas@florath.net
>
>
> http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-
> trail&database=gcc&pr=10060
>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: c++/10060: ICE on huge file (300k lines)
@ 2003-05-09 13:06 andreas
0 siblings, 0 replies; 5+ messages in thread
From: andreas @ 2003-05-09 13:06 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
The following reply was made to PR c++/10060; it has been noted by GNATS.
From: <andreas@florath.net>
To: gcc-gnats@gcc.gnu.org, gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org, gcc-prs@gcc.gnu.org, giovannibajo@libero.it, andreas@florath.net
Cc:
Subject: Re: c++/10060: ICE on huge file (300k lines)
Date: Fri, 9 May 2003 14:56:02 +0200
Hello!
The numbers are 74799 (which works) and 74800 (which failes).
Maybe one additional hint: I had a look at the stack from the
core from 88511. It says:
00281958 ggc_alloc (55, 0, 0, 550404, 0, 0)
00129f98 copy_rtx_if_shared (0, 17527728, 0, 33a5c8, 2, 55) + 170
00129f10 copy_rtx_if_shared (17527710, 17527b60, 0, 1, 33a5c8, 4c) + e8
00129f10 copy_rtx_if_shared (0, 17527f98, 0, 0, 33a5c8, 3) + e8
00129f10 copy_rtx_if_shared (0, 175303d8, 0, 0, 33a5c8, 3) + e8
00129f10 copy_rtx_if_shared (0, 17530810, 0, 0, 33a5c8, 3) + e8
***
[there are 74816 lines with copy_rtx_if_shared only with different
second argument.]
***
00129f10 copy_rtx_if_shared (0, 33e82498, 0, 0, 33a5c8, 3) + e8
00129f10 copy_rtx_if_shared (0, 33e828d0, 0, 0, 33a5c8, 3) + e8
00129f10 copy_rtx_if_shared (0, 33e82d08, 0, 0, 33a5c8, 3) + e8
00129f10 copy_rtx_if_shared (0, 3, 0, 0, 33a5c8, 3) + e8
00129f10 copy_rtx_if_shared (0, 2, 362cee40, 0, 33a5c8, 3) + e8
00129948 unshare_all_rtl (a895e80, 18b2a50, 18b2a50, 18b2a50, 11df4a80,
1906e00) + 6c
002635f0 rest_of_compilation (a895e80, 40d4d, 3d2000, 3d2400, dbe04,
3b9000) + 478
000befc4 genrtl_finish_function (a895e80, a895e80, 0, 1906e00, 0,
40d4d) + 68
000bec60 expand_body (a895e80, a8aca80, a6, 0, 0, 0) + 230
00094868 yyparse (3f1c08, ffbee710, 3e5000, 0, 31e000, ffbee71a) + 9bc
000dc080 c_common_parse_file (0, ff33fa9c, 0, 3d2b38, dc048, 3b9000) +
38
00262bdc compile_file (32e058, ffbeeb20, 1, 0, 0, 393398) + 34
00267fa8 do_compile (3ebc00, ffbeead4, 0, 0, 0, 0) + 84
0026806c toplev_main (15, ffbeead4, ffbeeb2c, 3c8680, 0, 0) + 5c
0003d20c _start (0, 0, 0, 0, 0, 0) + 5c
If I can help you (sending some file, try a patch, ...), just
drop me a mail.
Best regards
Andreas Florath
andreas@florath.net
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10060
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: c++/10060: ICE on huge file (300k lines)
@ 2003-05-05 10:52 giovannibajo
0 siblings, 0 replies; 5+ messages in thread
From: giovannibajo @ 2003-05-05 10:52 UTC (permalink / raw)
To: andreas, gcc-bugs, gcc-prs, giovannibajo, nobody
Synopsis: ICE on huge file (300k lines)
State-Changed-From-To: open->feedback
State-Changed-By: bajo
State-Changed-When: Mon May 5 10:52:02 2003
State-Changed-Why:
Hello Andreas,
I have troubles reproducing this because it either hits
virtual memory exhausted or compiles correctly, depends
on how many objects I make it generate.
Would you please confirm that this is still a bug in
GCC 3.3 or 3.4, and provide a minimal number of objects
that must be generated to trigger it? It seems that
compilation time grows O(n^2), so putting a big number
means hours of compilation (assuming infinite memory).
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10060
^ permalink raw reply [flat|nested] 5+ messages in thread
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2003-05-09 16:36 c++/10060: ICE on huge file (300k lines) Andrew Pinski
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2003-05-09 13:16 Giovanni Bajo
2003-05-09 13:06 Andrew Pinski
2003-05-09 13:06 andreas
2003-05-05 10:52 giovannibajo
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