[Bug c++/49227] ice in inline_small_functions

[Bug c++/49227] ice in inline_small_functions

[dcb314 at hotmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49227

--- Comment #1 from dcb <dcb314 at hotmail dot com> 2011-05-30 08:37:39 UTC ---
Created attachment 24393
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24393
gzipped C++ source code

[Bug c++/49227] New: ice in inline_small_functions

[dcb314 at hotmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49227

           Summary: ice in inline_small_functions
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dcb314@hotmail.com


I just tried to compile the package itpp-4.0.6 with the latest 4.7
snapshot 20110528 on a Fedora Linux x86_64 box.

The compiler said

../../itpp/protocol/tcp.cpp:1932:1: internal compiler error: in
inline_small_functions, at ipa-inline.c:1348
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Preprocessed source code attached. Flag -O3 required.

[Bug tree-optimization/49227] [4.7 Regression] ice in inline_small_functions

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49227

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hubicka at gcc dot gnu.org,
                   |                            |rguenth at gcc dot gnu.org
          Component|c++                         |tree-optimization
   Target Milestone|---                         |4.7.0
            Summary|ice in                      |[4.7 Regression] ice in
                   |inline_small_functions      |inline_small_functions

[Bug tree-optimization/49227] [4.7 Regression] ice in inline_small_functions

[arthur.j.odwyer at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49227

--- Comment #2 from Arthur O'Dwyer <arthur.j.odwyer at gmail dot com> 2011-07-02 08:04:20 UTC ---
Created attachment 24657
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24657
Another testcase, fairly reduced

I just ran into the same ICE via automatic test generation.  I'm attaching
"bug120673164-reduced.c", a 65-line C99 test case exposing the bug.

gcc -std=c99 -w -O2 -finline-functions -fnon-call-exceptions -fno-tree-fre
bug120673164-reduced.c
bug120673164-reduced.c:77:1: internal compiler error: in
inline_small_functions, at ipa-inline.c:1398

This test case is reduced from the output of Csmith 2.1.0 (git hash 01aa8b04,
https://github.com/Quuxplusone/csmith/), using the following command line:
csmith --paranoid --no-longlong --no-pointers --arrays --jumps --consts
--no-volatiles --checksum --divs --no-muls --no-bitfields --packed-struct -s
120673164

[Bug tree-optimization/49227] [4.7 Regression] ice in inline_small_functions

[arthur.j.odwyer at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49227

Arthur O'Dwyer <arthur.j.odwyer at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |arthur.j.odwyer at gmail
                   |                            |dot com

--- Comment #3 from Arthur O'Dwyer <arthur.j.odwyer at gmail dot com> 2011-07-02 08:06:32 UTC ---
(In reply to comment #2)
Shoot, as soon as I clicked "Save" I noticed that the line number is different:
ipa-inline.c:1348 versus ipa-inline.c:1398. So my ICE might be something
different. Nevertheless, they're both in the same file and both regressed very
recently, so the root cause is likely the same in both cases.

[Bug tree-optimization/49227] [4.7 Regression] ice in inline_small_functions

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49227

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED

--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-08-02 14:16:29 UTC ---
Neither testcase reproduces for me anymore.

[Bug tree-optimization/49227] [4.7 Regression] ice in inline_small_functions

[arthur.j.odwyer at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49227

--- Comment #5 from Arthur O'Dwyer <arthur.j.odwyer at gmail dot com> 2011-08-02 17:47:20 UTC ---
Confirmed that my testcase no longer reproduces, as of svn revision 177081 or
earlier.

[Bug tree-optimization/49227] [4.7 Regression] ice in inline_small_functions

[dcb314 at hotmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49227

--- Comment #6 from dcb <dcb314 at hotmail dot com> 2011-08-02 20:09:55 UTC ---
(In reply to comment #5)
> Confirmed that my testcase no longer reproduces, as of svn revision 177081 or
> earlier.

I confirm that it seems to be fixed for me as of snapshot 20110730