[Bug rtl-optimization/37251] New: [4.4 Regression] ICE with ira: delete_allocno_from_bucket

[Bug rtl-optimization/37251] New: [4.4 Regression] ICE with ira: delete_allocno_from_bucket

[jv244 at cam dot ac dot uk]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 2236 bytes --]

The following triggered with CP2K:

gfortran -v -c -O3 -ffast-math -funroll-loops -ftree-vectorize -march=native
xc_xbecke88_lr_adiabatic.f90
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: /data/vondele/gcc_bench/gcc_trunk/gcc/configure
--prefix=/data/vondele/gcc_bench/gcc_trunk/build --enable-languages=c,fortran
Thread model: posix
gcc version 4.4.0 20080826 (experimental) (GCC)
COLLECT_GCC_OPTIONS='-v' '-c' '-O3' '-ffast-math' '-funroll-loops'
'-ftree-vectorize'

/data/vondele/gcc_bench/gcc_trunk/build/libexec/gcc/x86_64-unknown-linux-gnu/4.4.0/f951
xc_xbecke88_lr_adiabatic.f90 -march=core2 -mcx16 -msahf --param
l1-cache-size=32 --param l1-cache-line-size=64 --param l2-cache-size=4096
-mtune=core2 -quiet -dumpbase xc_xbecke88_lr_adiabatic.f90 -auxbase
xc_xbecke88_lr_adiabatic -O3 -version -ffast-math -funroll-loops
-ftree-vectorize -fintrinsic-modules-path
/data/vondele/gcc_bench/gcc_trunk/build/lib/gcc/x86_64-unknown-linux-gnu/4.4.0/finclude
-o /tmp/cci09Vqi.s
GNU Fortran (GCC) version 4.4.0 20080826 (experimental)
(x86_64-unknown-linux-gnu)
        compiled by GNU C version 4.4.0 20080826 (experimental), GMP version
4.2.2, MPFR version 2.3.1.
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
xc_xbecke88_lr_adiabatic.f90: In function ‘xb88_lr_adiabatic_lda_calc’:
xc_xbecke88_lr_adiabatic.f90:492: internal compiler error: in
delete_allocno_from_bucket, at ira-color.c:619

testcase to be attached. Using -march=opteron (which I used to test the ira
branch) is enough to avoid it, so the -march=xxx and so on parameters are
relevant.

Full sources can be downloaded:
http://cp2k.berlios.de/gfortran/
ftp://ftp.berlios.de/pub/cp2k/gfortran/gcc_bench.tgz


-- 
           Summary: [4.4 Regression] ICE with ira:
                    delete_allocno_from_bucket
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jv244 at cam dot ac dot uk
OtherBugsDependingO 29975
             nThis:


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37251

[Bug rtl-optimization/37251] [4.4 Regression] ICE with ira: delete_allocno_from_bucket

[jv244 at cam dot ac dot uk]

------- Comment #1 from jv244 at cam dot ac dot uk  2008-08-27 06:26 -------
Created an attachment (id=16153)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16153&action=view)
testcase


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37251

[Bug rtl-optimization/37251] [4.4 Regression] ICE with ira: delete_allocno_from_bucket

[jv244 at cam dot ac dot uk]

-- 

jv244 at cam dot ac dot uk changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37251

[Bug rtl-optimization/37251] [4.4 Regression] ICE with ira: delete_allocno_from_bucket

[jv244 at cam dot ac dot uk]

------- Comment #2 from jv244 at cam dot ac dot uk  2008-08-27 07:45 -------
Created an attachment (id=16154)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16154&action=view)
shorter Fortran only testcase

gfortran -v -c -O3 -ffast-math -funroll-loops -ftree-vectorize -march=native
bug_PR37251.f90


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37251

[Bug rtl-optimization/37251] [4.4 Regression] ICE with ira: delete_allocno_from_bucket

[jv244 at cam dot ac dot uk]

------- Comment #3 from jv244 at cam dot ac dot uk  2008-08-27 07:53 -------
This is the minimal command line to reproduce the bug:

gfortran  -c -O1 -ffast-math -march=core2  bug_PR37251.f90


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37251

[Bug rtl-optimization/37251] [4.4 Regression] ICE with ira: delete_allocno_from_bucket

[dominiq at lps dot ens dot fr]

------- Comment #4 from dominiq at lps dot ens dot fr  2008-08-27 07:59 -------
Confirmed on i686-apple-darwin9 for the code in comment #3. -O2 is sufficient
to trigger the ICE

[ibook-dhum] f90/bug% gfc -O2 pr37251.f90
pr37251.f90: In function 'xb88_lr_adiabatic_lda_calc':
pr37251.f90:216: internal compiler error: in delete_allocno_from_bucket, at
ira-color.c:619


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37251

[Bug rtl-optimization/37251] [4.4 Regression] ICE with ira: delete_allocno_from_bucket

[vmakarov at redhat dot com]

------- Comment #5 from vmakarov at redhat dot com  2008-08-27 21:59 -------
  The problem occurs when a region and its nested region have more 4000
uncolorable allocnos.  In this case splay tree is used to deal with the
uncolorable allocnos.  Part of uncolorable_allocnos is temporarily stored in an
array which is not truncated after region coloring and allocnos in the array
are put into the splay tree in its subregion.

The patch solving the problem will be sent soon.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37251

[Bug rtl-optimization/37251] [4.4 Regression] ICE with ira: delete_allocno_from_bucket

[jv244 at cam dot ac dot uk]

------- Comment #6 from jv244 at cam dot ac dot uk  2008-08-28 08:15 -------
(In reply to comment #5)
> 
> The patch solving the problem will be sent soon.
> 
The patch you posted fixes the build of CP2K. Benchmark results will appear:

http://cp2k.berlios.de/gfortran/

the night after it hits trunk.


-- 

jv244 at cam dot ac dot uk changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2008-08-28 08:15:19
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37251

[Bug rtl-optimization/37251] [4.4 Regression] ICE with ira: delete_allocno_from_bucket

[vmakarov at gcc dot gnu dot org]

------- Comment #7 from vmakarov at gcc dot gnu dot org  2008-08-29 16:19 -------
Subject: Bug 37251

Author: vmakarov
Date: Fri Aug 29 16:18:11 2008
New Revision: 139770

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=139770
Log:
2008-08-29  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-opt/37251

        * ira-color.c (push_allocnos_to_stack): Truncate
        removed_splay_allocno_vec.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ira-color.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37251

[Bug rtl-optimization/37251] [4.4 Regression] ICE with ira: delete_allocno_from_bucket

[hjl at gcc dot gnu dot org]

------- Comment #8 from hjl at gcc dot gnu dot org  2008-09-02 18:17 -------
Subject: Bug 37251

Author: hjl
Date: Tue Sep  2 18:16:24 2008
New Revision: 139900

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=139900
Log:
2008-09-02  H.J. Lu  <hongjiu.lu@intel.com>

        Backport from mainline:
        2008-09-01  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

        * ira.c (setup_eliminable_regset): Only declare i if ELIMINABLE_REGS is
        defined.

        2008-08-29  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-opt/37251
        * ira-color.c (push_allocnos_to_stack): Truncate
        removed_splay_allocno_vec.

        2008-08-29  Vladimir Makarov  <vmakarov@redhat.com>

        PR rtl-opt/37243
        * ira-color (ira_fast_allocation): Don't assign hard registers to
        global allocnos.

Added:
    branches/ira-merge/gcc/ChangeLog.ira
Modified:
    branches/ira-merge/gcc/ira-color.c
    branches/ira-merge/gcc/ira.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37251

[Bug rtl-optimization/37251] [4.4 Regression] ICE with ira: delete_allocno_from_bucket

[jv244 at cam dot ac dot uk]

------- Comment #9 from jv244 at cam dot ac dot uk  2008-09-06 09:09 -------
I believe this bug should be closed ? Or do you still want to add the testcase
to mainline?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37251

[Bug rtl-optimization/37251] [4.4 Regression] ICE with ira: delete_allocno_from_bucket

[jakub at gcc dot gnu dot org]

------- Comment #10 from jakub at gcc dot gnu dot org  2008-10-10 08:25 -------
Let's close this...


-- 

jakub at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37251