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Re: c++/10060: ICE on huge file (300k lines)

From: Andrew Pinski <pinskia at physics dot uc dot edu>
To: "Giovanni Bajo" <giovannibajo at libero dot it>
Cc: Andrew Pinski <pinskia at physics dot uc dot edu>, <andreas at florath dot net>, <gcc-gnats at gcc dot gnu dot org>, <gcc-bugs at gcc dot gnu dot org>, <nobody at gcc dot gnu dot org>, <gcc-prs at gcc dot gnu dot org>
Date: Fri, 9 May 2003 12:31:50 -0400
Subject: Re: c++/10060: ICE on huge file (300k lines)

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

References:
- Re: c++/10060: ICE on huge file (300k lines)
  - From: Giovanni Bajo

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