[Bug c/32347] New: ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[Bug c/32347] New: ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[malitzke at metronets dot com]

Reading specs from /var/tmp/gcc_r43/build-25/gcc/specs
Target: powerpc-unknown-linux-gnu
Configured with: ../gcc-4.3.0/configure --prefix=/usr --infodir=/usr/share/info
--mandir=/usr/share/man --host=powerpc-unknown-linux-gnu
--build=powerpc-unknown-linux-gnu --enable-__cxa_atexit --enable-threads=posix
--enable-shared --enable-clocale=gnu --enable-bootstrap
--enable-languages=c,c++,fortran --disable-altivec --disable-checking
--disable-nls --disable-decimal-float --disable-werror --disable-multilib
--with-ibmlongdouble --with-cpu=7450 --enable-clocale=gnu --with-system-zlib
Thread model: posix
gcc version 4.3.0 20070614 (experimental)
 /var/tmp/gcc_r43/build-25/gcc/cc1 -E -quiet -v -iprefix
/var/tmp/gcc_r43/build-25/gcc/../lib/gcc/powerpc-unknown-linux-gnu/4.3.0/
-isystem /var/tmp/gcc_r43/build-25/gcc/include -isystem
/var/tmp/gcc_r43/build-25/gcc/include-fixed -D__unix__ -D__gnu_linux__
-D__linux__ -Dunix -D__unix -Dlinux -D__linux -Asystem=linux -Asystem=unix
-Asystem=posix ops.c -maltivec -mabi=altivec -mcpu=7450 -std=gnu99
-fno-show-column -Os -fpch-preprocess -o ops.i
ignoring nonexistent directory
"/var/tmp/gcc_r43/build-25/gcc/../lib/gcc/powerpc-unknown-linux-gnu/4.3.0/include"
ignoring nonexistent directory
"/var/tmp/gcc_r43/build-25/gcc/../lib/gcc/powerpc-unknown-linux-gnu/4.3.0/include-fixed"
ignoring nonexistent directory
"/var/tmp/gcc_r43/build-25/gcc/../lib/gcc/powerpc-unknown-linux-gnu/4.3.0/../../../../powerpc-unknown-linux-gnu/include"
ignoring nonexistent directory
"/var/tmp/gcc_r43/build-25/gcc/../lib/gcc/../../lib/gcc/powerpc-unknown-linux-gnu/4.3.0/include"
ignoring nonexistent directory
"/var/tmp/gcc_r43/build-25/gcc/../lib/gcc/../../lib/gcc/powerpc-unknown-linux-gnu/4.3.0/include-fixed"
ignoring nonexistent directory
"/var/tmp/gcc_r43/build-25/gcc/../lib/gcc/../../lib/gcc/powerpc-unknown-linux-gnu/4.3.0/../../../../powerpc-unknown-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/include/libffi
 /var/tmp/gcc_r43/build-25/gcc/include
 /var/tmp/gcc_r43/build-25/gcc/include-fixed
 /usr/local/include
 /usr/include
End of search list.
 /var/tmp/gcc_r43/build-25/gcc/cc1 -fpreprocessed ops.i -quiet -dumpbase ops.c
-maltivec -mabi=altivec -mcpu=7450 -auxbase-strip ops.s -Os -std=gnu99 -version
-fno-show-column -o ops.s
GNU C version 4.3.0 20070614 (experimental) (powerpc-unknown-linux-gnu)
        compiled by GNU C version 4.3.0 20070614 (experimental), GMP version
4.2.1, MPFR version 2.2.1-p5.
GGC heuristics: --param ggc-min-expand=81 --param ggc-min-heapsize=96544
Compiler executable checksum: 8c94e74aa22d7e7d522ab31740502ad9
ops.c: In function 'f6':
ops.c:761: error: insn does not satisfy its constraints:
(insn 1187 1186 32 2 ops.c:663 (set (reg:V4SI 78 1)
        (mem:V4SI (plus:SI (reg:SI 11 11)
                (const_int 16 [0x10])) [7 S16 A128])) 515 {altivec_lvx_v4si}
(nil))
ops.c:761: internal compiler error: in reload_cse_simplify_operands, at
postreload.c:396
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: ICE on gcc/testsuite/gcc-dg/vmx/ops.c
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: malitzke at metronets dot com
 GCC build triplet: powerpc-unknown-linux-gnu
  GCC host triplet: powerpc-unknown-linux-gnu
GCC target triplet: powerpc-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug c/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[malitzke at metronets dot com]

------- Comment #1 from malitzke at metronets dot com  2007-06-14 19:30 -------
Created an attachment (id=13704)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13704&action=view)
standard preprocessed


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug target/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
           Severity|major                       |normal
          Component|c                           |target


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug target/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2007-06-14 20:53 -------
Why did you remove me?


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug target/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[spark at gcc dot gnu dot org]

------- Comment #3 from spark at gcc dot gnu dot org  2007-06-14 21:10 -------
Adding our bugmaster to CC.


-- 

spark at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |spark at gcc dot gnu dot
                   |                            |org, pinskia at gcc dot gnu
                   |                            |dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug target/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[pinskia at gcc dot gnu dot org]

------- Comment #4 from pinskia at gcc dot gnu dot org  2007-06-14 21:19 -------
(In reply to comment #3)
> Adding our bugmaster to CC.
Well in this case, I am more of a PPC guy and not the bugmaster.  I think I
know what the issue is already, but since you did "--disable-altivec" which
does not make sense as you did --with-cpu=7450 also.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug target/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[malitzke at metronets dot com]

------- Comment #5 from malitzke at metronets dot com  2007-06-14 21:42 -------
Smart comment, unfortunately it is wrong. I spotted this myself and quickly
rebootstrapped gcc the results are:

Reading specs from /var/tmp/gcc_r43/build-26/gcc/specs
Target: powerpc-unknown-linux-gnu
Configured with: ../gcc-4.3.0/configure --prefix=/usr --infodir=/usr/share/info
--mandir=/usr/share/man --host=powerpc-unknown-linux-gnu
--build=powerpc-unknown-linux-gnu --enable-__cxa_atexit --enable-threads=posix
--enable-shared --enable-clocale=gnu --enable-bootstrap
--enable-languages=c,c++,fortran --enable-altivec --disable-checking
--disable-nls --disable-decimal-float --disable-werror --disable-multilib
--with-ibmlongdouble --with-cpu=7450 --enable-clocale=gnu --with-system-zlib
Thread model: posix
gcc version 4.3.0 20070614 (experimental)
 /var/tmp/gcc_r43/build-26/gcc/cc1 -E -quiet -v -iprefix
/var/tmp/gcc_r43/build-26/gcc/../lib/gcc/powerpc-unknown-linux-gnu/4.3.0/
-isystem /var/tmp/gcc_r43/build-26/gcc/include -isystem
/var/tmp/gcc_r43/build-26/gcc/include-fixed -D__unix__ -D__gnu_linux__
-D__linux__ -Dunix -D__unix -Dlinux -D__linux -Asystem=linux -Asystem=unix
-Asystem=posix ops.c -maltivec -mabi=altivec -mcpu=7450 -std=gnu99
-fno-show-column -Os -fpch-preprocess -o ops.i
ignoring nonexistent directory
"/var/tmp/gcc_r43/build-26/gcc/../lib/gcc/powerpc-unknown-linux-gnu/4.3.0/include"
ignoring nonexistent directory
"/var/tmp/gcc_r43/build-26/gcc/../lib/gcc/powerpc-unknown-linux-gnu/4.3.0/include-fixed"
ignoring nonexistent directory
"/var/tmp/gcc_r43/build-26/gcc/../lib/gcc/powerpc-unknown-linux-gnu/4.3.0/../../../../powerpc-unknown-linux-gnu/include"
ignoring nonexistent directory
"/var/tmp/gcc_r43/build-26/gcc/../lib/gcc/../../lib/gcc/powerpc-unknown-linux-gnu/4.3.0/include"
ignoring nonexistent directory
"/var/tmp/gcc_r43/build-26/gcc/../lib/gcc/../../lib/gcc/powerpc-unknown-linux-gnu/4.3.0/include-fixed"
ignoring nonexistent directory
"/var/tmp/gcc_r43/build-26/gcc/../lib/gcc/../../lib/gcc/powerpc-unknown-linux-gnu/4.3.0/../../../../powerpc-unknown-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/include/libffi
 /var/tmp/gcc_r43/build-26/gcc/include
 /var/tmp/gcc_r43/build-26/gcc/include-fixed
 /usr/local/include
 /usr/include
End of search list.
 /var/tmp/gcc_r43/build-26/gcc/cc1 -fpreprocessed ops.i -quiet -dumpbase ops.c
-maltivec -mabi=altivec -mcpu=7450 -auxbase-strip ops.s -Os -std=gnu99 -version
-fno-show-column -o ops.s
GNU C version 4.3.0 20070614 (experimental) (powerpc-unknown-linux-gnu)
        compiled by GNU C version 4.3.0 20070614 (experimental), GMP version
4.2.1, MPFR version 2.2.1-p5.
GGC heuristics: --param ggc-min-expand=81 --param ggc-min-heapsize=96544
Compiler executable checksum: e4f92d229bfbaed546370fd132d96102
ops.c: In function 'f6':
ops.c:761: error: insn does not satisfy its constraints:
(insn 1187 1186 32 2 ops.c:663 (set (reg:V4SI 78 1)
        (mem:V4SI (plus:SI (reg:SI 11 11)
                (const_int 16 [0x10])) [7 S16 A128])) 515 {altivec_lvx_v4si}
(nil))
ops.c:761: internal compiler error: in reload_cse_simplify_operands, at
postreload.c:396
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.


the ops.i files compare identical but I could add and waste bandwidt 


-- 

malitzke at metronets dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dje at watson dot ibm dot
                   |                            |com, geoffk at geoffk dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug target/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[malitzke at metronets dot com]

------- Comment #6 from malitzke at metronets dot com  2007-06-14 21:50 -------
This is just a more conspicuous case as evidenced looking at the data below.
The almost 2:1 worse results for the powerpc show up day after day, month after
month.

Powerpc G4 gcc-4.3.0-20070613 check results

                === g++ Summary ===

# of expected passes            16031
# of unexpected failures        10
# of expected failures          86
# of unsupported tests          108


                === libmudflap Summary ===

# of expected passes            1817
# of unexpected failures        9

                === libstdc++ Summary ===

# of expected passes            4444
# of unexpected failures        1
# of unexpected successes       1
# of expected failures          42
# of unsupported tests          316

                === libgomp Summary ===

# of expected passes            1566

                === gfortran Summary ===

# of expected passes            18252
# of unexpected failures        24
# of expected failures          8
# of unsupported tests          36

                === gcc Summary ===

# of expected passes            45473
# of unexpected failures        5
# of unexpected successes       2
# of expected failures          138
# of untested testcases         35
# of unsupported tests          434



i686 pentium3 gcc-4.3.0-20070613 check results

                === libmudflap Summary ===

# of expected passes            1821
# of unexpected failures        5


                === libgomp Summary ===

# of expected passes            1566

                === g++ Summary ===

# of expected passes            16165
# of unexpected failures        6
# of unexpected successes       2
# of expected failures          86
# of unsupported tests          81

                === gfortran Summary ===

# of expected passes            18308
# of unexpected failures        8
# of expected failures          8
# of unsupported tests          16

                === libstdc++ Summary ===

# of expected passes            4445
# of unexpected successes       1
# of expected failures          42
# of unsupported tests          316

                === gcc Summary ===

# of expected passes            45210
# of unexpected failures        1
# of unexpected successes       2
# of expected failures          135
# of untested testcases         35
# of unsupported tests          318


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug target/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[pinskia at gcc dot gnu dot org]

------- Comment #7 from pinskia at gcc dot gnu dot org  2007-06-14 21:56 -------
These are the results I get from a couple of (3) days old on powerpc64-linux:
                === gcc Summary for unix//-m32 ===

# of expected passes            46391
# of unexpected failures        16
# of unexpected successes       2
# of expected failures          138
# of unresolved testcases       2
# of untested testcases         35
# of unsupported tests          416

                === gcc Summary for unix//-m64 ===

# of expected passes            46238
# of unexpected failures        13
# of unexpected successes       3
# of expected failures          138
# of unresolved testcases       2
# of untested testcases         35
# of unsupported tests          484

                === gcc Summary ===

# of expected passes            92629
# of unexpected failures        29
# of unexpected successes       5
# of expected failures          276
# of unresolved testcases       4
# of untested testcases         70
# of unsupported tests          900
/home/apinski/src/ptrplus/gcc/objdir/gcc/xgcc  version 4.3.0 20070611
(experimental)

And yes I know the unexpected failures look high, all of the problems related
to what I am running with really and nothing else.

Also by the way you should look into the changelog and you will notice I
started my GCC work with PPC :).


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug target/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[janis at gcc dot gnu dot org]

------- Comment #8 from janis at gcc dot gnu dot org  2007-06-14 22:10 -------
I get the same failure with my nightly build compiler for powerpc64-linux with
"-m32 -Os -mcpu=7450".  I'll minimize the testcase and perhaps that nice young
man Andrew Pinski will fix the bug for us.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug target/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[janis at gcc dot gnu dot org]

------- Comment #9 from janis at gcc dot gnu dot org  2007-06-15 23:40 -------
This makes no sense to me, but I'll report it in case it does to someone else. 
With compilers for powerpc64-linux, the test compiled with "-c -O2 -mcpu=7450"
(or -Os instead of -O2) passes with GCC 4.0 and fails with GCC 4.1 and later. 
A regression hunt of mainline between the branchpoints for 4.0 and 4.1
identified revision 106744.  That was a bit messy because r106743 introduced a
typo which was fixed in 106746.  A powerpc-linux cross compiler built from
r106741 plus the patch for r106744 also caused the test to fail.  The odd thing
is that the patch for 106744 is for dom, but the test fails even with
-fno-tree-dominator-opts.

I tried the test with a variety of revisions from before and after that patch
to see if the results were intermittent, but they consistently pass before the
patch and fail afterwards.

The testcase proved resistant to minimizing, but I'll attached the smallest I
managed to get it.  It's not preprocessed, still including altivec.h in case
changes to that file were related to the failure.


-- 

janis at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |janis at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug target/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[janis at gcc dot gnu dot org]

------- Comment #10 from janis at gcc dot gnu dot org  2007-06-15 23:42 -------
Created an attachment (id=13711)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13711&action=view)
smaller testcase


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug target/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[malitzke at metronets dot com]

------- Comment #11 from malitzke at metronets dot com  2007-06-17 00:14 -------
Thank you Mrs Johnson for putting in (by my reckoning) an inordinate amount of
hours to put some bounds on this problems.

I am sure you are aware of the old adage "A stitch in time saves nine". If some
developer/maintainers had examined the check results many month ago  this would
have been much easier to fix. This inattention to sound procedures was raised
in the discussion leading to the release of gcc-4.2.0. One participant in that
discussion even advocated abandoning gcc-4.2.x series altogether and we all
have to thank Prof. Sikora for persevering in the case of quadratic memory
consumption with a remark as follows:

yup, looks like a nice bullet for 4.2.0 release.
with such features 4.2 will be widely /dev/nulled.

I took the liberty of making you a CC on PR 32314, as with your presentation at
the 2005 GCC meeting shows that you are a proponent for decimal floating point.
Your calming influence will be appreciated.

Thanks again.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug target/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[malitzke at metronets dot com]

------- Comment #12 from malitzke at metronets dot com  2007-06-19 23:57 -------
Why is this still unconfirmed after the corrobation by Mrs Johnson?

Personally I could not care less if it is swept under the rug, like so many
other
PR's. Without-altivec would suit me fine as altivec is, to me, just a competive
and unnecessary competitive response, by then Motorola, to Intel's SSE, which
to me is just gumming up the X86 part of the compiler.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug target/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[pinskia at gcc dot gnu dot org]

------- Comment #13 from pinskia at gcc dot gnu dot org  2007-06-20 00:27 -------
This is a target bug.  Nothing can change it from being a target bug unless it
turns out to be a middle-end bug on how addressing works inside the compiler.
The main reason why it has not been confirmed, is because I and others have
been busy with some of your other bugs and other things (like traveling to
Japan).


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
          Component|c                           |target
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-06-20 00:27:59
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug target/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[malitzke at metronets dot com]

------- Comment #14 from malitzke at metronets dot com  2007-06-21 00:53 -------

This whole series of postings from myself had one aim:

to _shame_ Messrs David Edelsohn  an Geoff Keating to step up to their
resposibilities. You, Pinski, are not listed as a maintainer for RS600; they
are.

Mr Keating, form the ChangeLog is connected in some way with Apple (ex
Computer). Apple dumped RS6000 quite some time ago in favor of i386 and his
more recent patches reflect that. Maybe he should vacate that gcc slot for
somebody
else.

I am sorry that have to be that explicit in this forum, but my patience just
gave out. If somebody take offense so be it.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug target/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[geoffk at gcc dot gnu dot org]

------- Comment #15 from geoffk at gcc dot gnu dot org  2007-06-21 18:31 -------
Doesn't fail on powerpc-darwin (nor apparently on powerpc-aix).


-- 

geoffk at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|geoffk at geoffk dot org    |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347

[Bug target/32347] ICE on gcc/testsuite/gcc-dg/vmx/ops.c

[dje at watson dot ibm dot com]

------- Comment #16 from dje at watson dot ibm dot com  2007-06-22 16:44 -------
Subject: Re:  ICE on gcc/testsuite/gcc-dg/vmx/ops.c 

        There are much more constructive ways in which to interact with
the GCC community, GCC developers, and port maintainers than you have
chosen to pursue.

        I am sorry that we are not addressing your particular bug as
quickly as you would like.  Insisting on action after one week and making
personal attacks are not appropriate.

David


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32347