[Bug c++/44363] New: gcc fails with ICE when compiling ffmpeg

[Bug c++/44363] New: gcc fails with ICE when compiling ffmpeg

[lists at eitanadler dot com]

% gcc46 -v
Using built-in specs.
COLLECT_GCC=gcc46
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc46/gcc/i386-portbld-freebsd8.1/4.6.0/lto-wrapper
Target: i386-portbld-freebsd8.1
Configured with: ./../gcc-4.6-20100529/configure --disable-nls
--libdir=/usr/local/lib/gcc46 --libexecdir=/usr/local/libexec/gcc46
--program-suffix=46 --with-as=/usr/local/bin/as --with-gmp=/usr/local
--with-gxx-include-dir=/usr/local/lib/gcc46/include/c++/
--with-ld=/usr/local/bin/ld --with-libiconv-prefix=/usr/local
--with-system-zlib --disable-rpath --prefix=/usr/local --mandir=/usr/local/man
--infodir=/usr/local/info/gcc46 --build=i386-portbld-freebsd8.1
Thread model: posix
gcc version 4.6.0 20100529 (experimental) (GCC) 

gcc46 -DHAVE_AV_CONFIG_H -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
-I. -I"/dta/ports/multimedia/ffmpeg/work/ffmpeg-0.5.2" -pipe -mssse3
-mtune=native -O3 -ffast-math -fno-finite-math-only
-fomit-frame-pointer -Wl,-rpath=/usr/local/lib/gcc46
-fno-strict-aliasing -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
-I/usr/local/include/vorbis -I/usr/local/include -std=c99
-fomit-frame-pointer -Wdeclaration-after-statement -Wall -Wno-switch
-Wdisabled-optimization -Wpointer-arith -Wredundant-decls
-Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wtype-limits -Wundef
-O3 -fno-math-errno -fno-signed-zeros          -c -o libavutil/crc.o
libavutil/crc.c
libavutil/crc.c: In function 'av_crc_init':
libavutil/crc.c:58:5: internal compiler error: in predicate_bbs, at
tree-if-conv.c:555
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
gmake: *** [libavutil/crc.o] Error 1
gmake: *** Waiting for unfinished jobs....
*** Error code 1

This appears to crash at the same point every time which I think rules out HW
error to me.

The following command compiles successfully:
gcc46 -DHAVE_AV_CONFIG_H -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -I.
-I"/dta/ports/multimedia/ffmpeg/work/ffmpeg-0.5.2" -pipe -O3
-Wl,-rpath=/usr/local/lib/gcc46 -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
-I/usr/local/include/vorbis -I/usr/local/include -std=c99
-Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization
-Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings
-Wtype-limits -Wundef -O0 -c -o libavutil/crc.o libavutil/crc.c 

Note -O0 and removal of all -f* flags. I don't know exactly which flags I could
add and have it still compile.


-- 
           Summary: gcc fails with ICE when compiling ffmpeg
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: lists at eitanadler dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44363

[Bug c++/44363] gcc fails with ICE when compiling ffmpeg

[lists at eitanadler dot com]

------- Comment #1 from lists at eitanadler dot com  2010-06-01 12:39 -------
Created an attachment (id=20792)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20792&action=view)
preprocessed source of file that fails


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44363

[Bug c++/44363] gcc fails with ICE when compiling ffmpeg

[lists at eitanadler dot com]

------- Comment #2 from lists at eitanadler dot com  2010-06-01 12:41 -------
Sorry - I forgot to include the following data:
% uname -rms
FreeBSD 8.1-BETA1 i386


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44363

[Bug c++/44363] gcc fails with ICE when compiling ffmpeg

[lists at eitanadler dot com]

------- Comment #3 from lists at eitanadler dot com  2010-06-01 14:20 -------
After some more testing I could leave all the -f options on as long as I set
-O0. I'm still testing to see if it works with -O1 or -O2.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44363

[Bug tree-optimization/44363] [4.6 Regression] gcc fails with ICE when compiling ffmpeg

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2010-06-01 14:43 -------
Looks like caused by Sebs patches.  (I can't reproduce it though, maybe
re-verify with current trunk)


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |spop at gcc dot gnu dot org
          Component|c++                         |tree-optimization
            Summary|gcc fails with ICE when     |[4.6 Regression] gcc fails
                   |compiling ffmpeg            |with ICE when compiling
                   |                            |ffmpeg
   Target Milestone|---                         |4.6.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44363

[Bug tree-optimization/44363] [4.6 Regression] gcc fails with ICE when compiling ffmpeg

[lists at eitanadler dot com]

------- Comment #5 from lists at eitanadler dot com  2010-06-01 14:52 -------
This is only caused by -O3. -O2 seems perfectly fine.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44363

[Bug tree-optimization/44363] [4.6 Regression] gcc fails with ICE when compiling ffmpeg

[hjl dot tools at gmail dot com]

------- Comment #6 from hjl dot tools at gmail dot com  2010-06-01 15:44 -------
(In reply to comment #0)
> gcc46 -DHAVE_AV_CONFIG_H -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
> -I. -I"/dta/ports/multimedia/ffmpeg/work/ffmpeg-0.5.2" -pipe -mssse3
> -mtune=native -O3 -ffast-math -fno-finite-math-only
> -fomit-frame-pointer -Wl,-rpath=/usr/local/lib/gcc46
> -fno-strict-aliasing -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
> -I/usr/local/include/vorbis -I/usr/local/include -std=c99
> -fomit-frame-pointer -Wdeclaration-after-statement -Wall -Wno-switch
> -Wdisabled-optimization -Wpointer-arith -Wredundant-decls
> -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wtype-limits -Wundef
> -O3 -fno-math-errno -fno-signed-zeros          -c -o libavutil/crc.o

When you use -mtune=native, please include output from "gcc -v ..."
to show real tune target passed to cc1. Otherwise, people will have
a hard time to reproduce your problem since their native machines may
be very different from yours.


-- 

hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44363

[Bug tree-optimization/44363] [4.6 Regression] gcc fails with ICE when compiling ffmpeg

[lists at eitanadler dot com]

------- Comment #7 from lists at eitanadler dot com  2010-06-01 15:58 -------
(In reply to comment #6)
> (In reply to comment #0)
> > gcc46 -DHAVE_AV_CONFIG_H -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
> > -I. -I"/dta/ports/multimedia/ffmpeg/work/ffmpeg-0.5.2" -pipe -mssse3
> > -mtune=native -O3 -ffast-math -fno-finite-math-only
> > -fomit-frame-pointer -Wl,-rpath=/usr/local/lib/gcc46
> > -fno-strict-aliasing -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
> > -I/usr/local/include/vorbis -I/usr/local/include -std=c99
> > -fomit-frame-pointer -Wdeclaration-after-statement -Wall -Wno-switch
> > -Wdisabled-optimization -Wpointer-arith -Wredundant-decls
> > -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wtype-limits -Wundef
> > -O3 -fno-math-errno -fno-signed-zeros          -c -o libavutil/crc.o
> 
> When you use -mtune=native, please include output from "gcc -v ..."
> to show real tune target passed to cc1. Otherwise, people will have
> a hard time to reproduce your problem since their native machines may
> be very different from yours.
> 
See the top of the description - this was the first piece of information I
provided.


-- 

lists at eitanadler dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |UNCONFIRMED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44363

[Bug tree-optimization/44363] [4.6 Regression] gcc fails with ICE when compiling ffmpeg

[hjl dot tools at gmail dot com]

------- Comment #8 from hjl dot tools at gmail dot com  2010-06-01 16:09 -------
(In reply to comment #7)
> (In reply to comment #6)
> > (In reply to comment #0)
> > > gcc46 -DHAVE_AV_CONFIG_H -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
> > > -I. -I"/dta/ports/multimedia/ffmpeg/work/ffmpeg-0.5.2" -pipe -mssse3
> > > -mtune=native -O3 -ffast-math -fno-finite-math-only
> > > -fomit-frame-pointer -Wl,-rpath=/usr/local/lib/gcc46
> > > -fno-strict-aliasing -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
> > > -I/usr/local/include/vorbis -I/usr/local/include -std=c99
> > > -fomit-frame-pointer -Wdeclaration-after-statement -Wall -Wno-switch
> > > -Wdisabled-optimization -Wpointer-arith -Wredundant-decls
> > > -Wno-pointer-sign -Wcast-qual -Wwrite-strings -Wtype-limits -Wundef
> > > -O3 -fno-math-errno -fno-signed-zeros          -c -o libavutil/crc.o
> > 
> > When you use -mtune=native, please include output from "gcc -v ..."
> > to show real tune target passed to cc1. Otherwise, people will have
> > a hard time to reproduce your problem since their native machines may
> > be very different from yours.
> > 
> See the top of the description - this was the first piece of information I
> provided.
> 

That is not what I was asking for. Please add -v to the command line
used to compile libavutil/crc.o and show its output.


-- 

hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44363

[Bug tree-optimization/44363] [4.6 Regression] gcc fails with ICE when compiling ffmpeg

[lists at eitanadler dot com]

------- Comment #9 from lists at eitanadler dot com  2010-06-01 16:23 -------
(In reply to comment #8)
> (In reply to comment #7)
...
> That is not what I was asking for. Please add -v to the command line
> used to compile libavutil/crc.o and show its output.
Sorry, I misunderstood. Here is the output with -v

Using built-in specs.
COLLECT_GCC=gcc46
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc46/gcc/i386-portbld-freebsd8.1/4.6.0/lto-wrapper
Target: i386-portbld-freebsd8.1
Configured with: ./../gcc-4.6-20100529/configure --disable-nls
--libdir=/usr/local/lib/gcc46 --libexecdir=/usr/local/libexec/gcc46
--program-suffix=46 --with-as=/usr/local/bin/as --with-gmp=/usr/local
--with-gxx-include-dir=/usr/local/lib/gcc46/include/c++/
--with-ld=/usr/local/bin/ld --with-libiconv-prefix=/usr/local
--with-system-zlib --disable-rpath --prefix=/usr/local --mandir=/usr/local/man
--infodir=/usr/local/info/gcc46 --build=i386-portbld-freebsd8.1
Thread model: posix
gcc version 4.6.0 20100529 (experimental) (GCC) 
COLLECT_GCC_OPTIONS='-v' '-DHAVE_AV_CONFIG_H' '-D_FILE_OFFSET_BITS=64'
'-D_LARGEFILE_SOURCE' '-I.' '-I/dta/ports/multimedia/ffmpeg/work/ffmpeg-0.5.2'
'-pipe' '-O3' '-ffast-math' '-fno-finite-math-only' '-fno-strict-aliasing'
'-D_ISOC99_SOURCE' '-D_POSIX_C_SOURCE=200112' '-I/usr/local/include/vorbis'
'-I/usr/local/include' '-std=c99' '-fomit-frame-pointer'
'-Wdeclaration-after-statement' '-Wall' '-Wno-switch' '-Wdisabled-optimization'
'-Wpointer-arith' '-Wredundant-decls' '-Wno-pointer-sign' '-Wcast-qual'
'-Wwrite-strings' '-Wtype-limits' '-Wundef' '-O3' '-fno-math-errno'
'-fno-signed-zeros' '-c' '-o' 'libavutil/crc.o' '-mtune=i386' '-march=i386'
 /usr/local/libexec/gcc46/gcc/i386-portbld-freebsd8.1/4.6.0/cc1 -quiet -v -I.
-I/dta/ports/multimedia/ffmpeg/work/ffmpeg-0.5.2 -I/usr/local/include/vorbis
-I/usr/local/include -DHAVE_AV_CONFIG_H -D_FILE_OFFSET_BITS=64
-D_LARGEFILE_SOURCE -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 libavutil/crc.c
-quiet -dumpbase crc.c -mtune=i386 -march=i386 -auxbase-strip libavutil/crc.o
-O3 -O3 -Wdeclaration-after-statement -Wall -Wno-switch -Wdisabled-optimization
-Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wcast-qual -Wwrite-strings
-Wtype-limits -Wundef -std=c99 -version -ffast-math -fno-finite-math-only
-fno-strict-aliasing -fomit-frame-pointer -fno-math-errno -fno-signed-zeros -o
- |
 /usr/local/bin/as -v -I. -I/dta/ports/multimedia/ffmpeg/work/ffmpeg-0.5.2
-I/usr/local/include/vorbis -I/usr/local/include -o libavutil/crc.o
GNU assembler version 2.20.1 (i386-portbld-freebsd8.1) using BFD version (GNU
Binutils) 2.20.1.20100303
GNU C (GCC) version 4.6.0 20100529 (experimental) (i386-portbld-freebsd8.1)
        compiled by GNU C version 4.6.0 20100529 (experimental), GMP version
5.0.1, MPFR version 2.4.2, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
ignoring nonexistent directory
"/usr/local/lib/gcc46/gcc/i386-portbld-freebsd8.1/4.6.0/../../../../../i386-portbld-freebsd8.1/include"
ignoring duplicate directory "/dta/ports/multimedia/ffmpeg/work/ffmpeg-0.5.2"
ignoring duplicate directory "/usr/local/include"
  as it is a non-system directory that duplicates a system directory
#include "..." search starts here:
#include <...> search starts here:
 .
 /usr/local/include/vorbis
 /usr/local/include
 /usr/local/lib/gcc46/gcc/i386-portbld-freebsd8.1/4.6.0/include
 /usr/local/lib/gcc46/gcc/i386-portbld-freebsd8.1/4.6.0/include-fixed
 /usr/include
End of search list.
GNU C (GCC) version 4.6.0 20100529 (experimental) (i386-portbld-freebsd8.1)
        compiled by GNU C version 4.6.0 20100529 (experimental), GMP version
5.0.1, MPFR version 2.4.2, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: bb151bb48adc986d2afc1e0bfbd5e86d
libavutil/crc.c: In function 'av_crc_init':
libavutil/crc.c:58:5: internal compiler error: in predicate_bbs, at
tree-if-conv.c:555
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 

lists at eitanadler dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |UNCONFIRMED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44363

[Bug tree-optimization/44363] [4.6 Regression] gcc fails with ICE when compiling ffmpeg

[spop at gcc dot gnu dot org]

------- Comment #10 from spop at gcc dot gnu dot org  2010-06-01 18:18 -------
Patch: http://gcc.gnu.org/ml/gcc-patches/2010-06/msg00063.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44363

[Bug tree-optimization/44363] [4.6 Regression] gcc fails with ICE when compiling ffmpeg

[spop at gcc dot gnu dot org]

------- Comment #11 from spop at gcc dot gnu dot org  2010-06-02 16:39 -------
Subject: Bug 44363

Author: spop
Date: Wed Jun  2 16:39:26 2010
New Revision: 160163

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=160163
Log:
Fix PR44363: don't abort when the ifcvt analysis fails to recognize a Gimple
stmt.

2010-06-02  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/44363
        * tree-if-conv.c (predicate_bbs): Do not call gcc_unreachable,
        return false instead.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-if-conv.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44363

[Bug tree-optimization/44363] [4.6 Regression] gcc fails with ICE when compiling ffmpeg

[spop at gcc dot gnu dot org]

------- Comment #12 from spop at gcc dot gnu dot org  2010-06-02 16:42 -------
Fixed.


-- 

spop at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44363

[Bug tree-optimization/44363] [4.6 Regression] gcc fails with ICE when compiling ffmpeg

[lists at eitanadler dot com]

------- Comment #13 from lists at eitanadler dot com  2010-06-03 12:38 -------
gcc 4.6.0.20100529 + the patch fixes the problem.


-- 

lists at eitanadler dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |VERIFIED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44363