[Bug tree-optimization/35215] New: ICE: verify_histograms failed with -fprofile-use

[Bug tree-optimization/35215] New: ICE: verify_histograms failed with -fprofile-use

[astrange at ithinksw dot com]

> /usr/local/gcc43/bin/gcc -v
Using built-in specs.
Target: i386-apple-darwin9.2.0
Configured with: ../gcc/configure --prefix=/usr/local/gcc43
--enable-threads=posix --with-arch=core2 --with-tune=core2 --with-gmp=/sw
--with-mpfr=/sw --disable-nls --disable-bootstrap --enable-checking=yes,rtl
CFLAGS=-g LDFLAGS=/usr/lib/libiconv.dylib --enable-languages=c,c++,objc,obj-c++
Thread model: posix
gcc version 4.3.0 20080215 (experimental) (GCC) 

> /usr/local/gcc43/bin/gcc -O3 -fprofile-use -c pcx.i 
pcx.c: In function 'pcx_decode_frame':
pcx.c:247: error: Dead histogram
IOR value ior:0.
memset (dst_28, 0, 0);

pcx.c:247: internal compiler error: verify_histograms failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

I compiled ffmpeg profiled and didn't exercise code before doing -fprofile-use,
so the stats are all empty.


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           Summary: ICE: verify_histograms failed with -fprofile-use
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: astrange at ithinksw dot com
 GCC build triplet: 386-apple-darwin9.2.0
  GCC host triplet: 386-apple-darwin9.2.0
GCC target triplet: 386-apple-darwin9.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35215

[Bug tree-optimization/35215] ICE: verify_histograms failed with -fprofile-use

[astrange at ithinksw dot com]

------- Comment #3 from astrange at ithinksw dot com  2008-02-16 04:57 -------
Created an attachment (id=15166)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15166&action=view)
gcno


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35215

[Bug tree-optimization/35215] ICE: verify_histograms failed with -fprofile-use

[astrange at ithinksw dot com]

------- Comment #1 from astrange at ithinksw dot com  2008-02-16 04:56 -------
Created an attachment (id=15164)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15164&action=view)
source


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35215

[Bug tree-optimization/35215] ICE: verify_histograms failed with -fprofile-use

[astrange at ithinksw dot com]

------- Comment #2 from astrange at ithinksw dot com  2008-02-16 04:56 -------
Created an attachment (id=15165)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15165&action=view)
gcda


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35215

[Bug middle-end/35215] ICE: verify_histograms failed with -fprofile-use

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2008-02-16 10:54 -------
Happens only with checking enabled.  Honza, can you have a look here?


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rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hubicka at gcc dot gnu dot
                   |                            |org
          Component|tree-optimization           |middle-end
           Keywords|                            |ice-checking


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35215

[Bug middle-end/35215] ICE: verify_histograms failed with -fprofile-use

[ubizjak at gmail dot com]

------- Comment #5 from ubizjak at gmail dot com  2008-05-09 11:50 -------
The proposed patch is attached to PR36129. Should also fix this PR.

*** This bug has been marked as a duplicate of 36129 ***


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ubizjak at gmail dot com changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35215

[Bug middle-end/35215] ICE: verify_histograms failed with -fprofile-use

[ubizjak at gmail dot com]

------- Comment #6 from ubizjak at gmail dot com  2008-05-09 18:23 -------
Alexander, can you apply the patch at
http://gcc.gnu.org/ml/gcc-patches/2008-05/msg00562.html to 4.3 branch and test
if it fixes your ICE? I would like to backport the patch to 4.3.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35215

[Bug tree-optimization/35215] ICE: verify_histograms failed with -fprofile-use

[ubizjak at gmail dot com]

------- Comment #8 from ubizjak at gmail dot com  2008-05-09 19:30 -------
Taking bug.


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ubizjak at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |ubizjak at gmail dot com
                   |dot org                     |
             Status|UNCONFIRMED                 |ASSIGNED
          Component|middle-end                  |tree-optimization
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2008-05-09 19:30:08
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35215

[Bug middle-end/35215] ICE: verify_histograms failed with -fprofile-use

[ubizjak at gmail dot com]

------- Comment #7 from ubizjak at gmail dot com  2008-05-09 19:29 -------
This is not the same failure as PR36129. It is similar, just happens in another
place.

It also fails on x86_64-linux-gnu. I'll look into it.


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ubizjak at gmail dot com changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35215

[Bug tree-optimization/35215] ICE: verify_histograms failed with -fprofile-use

[ubizjak at gmail dot com]

------- Comment #9 from ubizjak at gmail dot com  2008-05-10 11:21 -------
Current 4.3.1 branch doesn't generate memset with zero length anymore.

Closed as WORKSFORME, but if still fails, please reopen and attach new *.i,
*.gcda and *.gcno files, produced with latest SVN HEAD versions of the
compiler.


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ubizjak at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |WORKSFORME


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35215