[Bug c++/47995] ICE of c++ in gcc-4.5.x at FrameLoader.cpp in WebKit build

[jipeng at broadcom dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47995

--- Comment #1 from Jian Peng  2011-03-04 22:07:40 
UTC ---
Created attachment 23549
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23549
generated from --save-temps

[Bug target/47995] ICE of c++ in gcc-4.5.x at FrameLoader.cpp in WebKit build

[jipeng at broadcom dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47995

--- Comment #2 from Jian Peng  2011-03-04 22:44:56 
UTC ---
Here is simpler testing program, first, unzip FrameLoader.ii.tar.bz2 (attached
last time), then

$ mipsel-linux-c++ -c FrameLoader.ii -o FrameLoader.o -O2 -fPIC -fno-exceptions
-fvisibility=hidden
mipsel-linux-c++: Internal error: Segmentation fault (program cc1plus)
Please submit a full bug report.
See  for instructions.

[Bug target/47995] ICE of c++ in gcc-4.5.x at FrameLoader.cpp in WebKit build

[jipeng at broadcom dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47995

Jian Peng  changed:

   What|Removed |Added

Version|4.5.1   |4.5.4
   Severity|normal  |critical

[Bug target/47995] ICE of c++ in gcc-4.5.x at FrameLoader.cpp in WebKit build

[jipeng at broadcom dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47995

--- Comment #4 from Jian Peng  2011-04-26 19:58:08 
UTC ---
Hi, Maksim,

I did not dig into this, but my past experience is that it is related to recent
rework of SSa in FCC since it did not show up in old gcc-4.3

Thanks,

Jian

On Apr 26, 2011, at 3:52 PM, "maksim.rayskiy at gmail dot com"
 wrote:

> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47995
> 
> Maksim Rayskiy  changed:
> 
>   What|Removed |Added
> 
> CC||maksim.rayskiy at gmail dot
>   ||com
> 
> --- Comment #3 from Maksim Rayskiy  
> 2011-04-26 19:51:11 UTC ---
> I want to add that segfault goes away if testcase is compiled with 
> -fno-ipa-sra
> option.
> 
> Also, the crash itself is a stack overflow because of infinite recursion in 
> config/mips/mips.c:
> 
> mips_find_pic_call_symbol -> mips_pic_call_symbol_from_set ->
> mips_find_pic_call_symbol -> ...
> 
> I am not sure I understand what condition does not allow the recursion to
> break.
> 
> -- 
> Configure bugmail: http://gcc.gnu.org/bugzilla/userprefs.cgi?tab=email
> --- You are receiving this mail because: ---
> You are on the CC list for the bug.
> You reported the bug.
>

[Bug tree-optimization/45109] New: ICE: in get_constraint_for_component_ref, at tree-ssa-structalias.c:2932

[jipeng at broadcom dot com]

This is similar to PR44946 that was fixed in gcc-4.6pre

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44946

Command line:

mipsel-linux-gcc test.c -c -o test.o -O2

Output:

test.c: In function ‘o_plist_deserialize_xml’:
test.c:34: internal compiler error: tree check: expected class ‘expression’,
have ‘declaration’ (function_decl) in get_constraint_for_component_ref, at
tree-ssa-structalias.c:2932
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revision:

4.4.* - fail
4.5.0 - OK


-- 
   Summary: ICE: in get_constraint_for_component_ref, at tree-ssa-
structalias.c:2932
   Product: gcc
   Version: 4.4.5
Status: UNCONFIRMED
  Severity: major
  Priority: P3
 Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jipeng at broadcom dot com
  GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: mipsel-linux-uclibc


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45109

[Bug tree-optimization/45109] ICE: in get_constraint_for_component_ref, at tree-ssa-structalias.c:2932

[jipeng at broadcom dot com]

--- Comment #1 from jipeng at broadcom dot com  2010-07-28 17:09 ---
Created an attachment (id=21340)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21340&action=view)
testing case


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45109