[Bug bootstrap/30921] New: Bootstrap failure with -ftree-vectorize on i386

[Bug bootstrap/30921] New: Bootstrap failure with -ftree-vectorize on i386

[irar at il dot ibm dot com]

Bootstrap with vectorization enabled fails on i386 starting from revision
121767:
http://gcc.gnu.org/viewcvs?view=rev&revision=121767

Ira


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           Summary: Bootstrap failure with -ftree-vectorize on i386
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: irar at il dot ibm dot com
 GCC build triplet: i386-redhat-linux
  GCC host triplet: i386-redhat-linux
GCC target triplet: i386-redhat-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30921

[Bug bootstrap/30921] Bootstrap failure with -ftree-vectorize on i386

[irar at il dot ibm dot com]

------- Comment #1 from irar at il dot ibm dot com  2007-02-22 07:58 -------
Here is the ChangeLog entry for that patch:

2007-02-09  Richard Henderson  <rth@redhat.com>

        * config/i386/constraints.md (Ym): New constraint.
        * config/i386/i386.md (movsi_1): Change Y2 to Yi constraints.
        (movdi_1_rex64): Split sse and xmm general register moves from
        memory move alternatives.  Use conditional register constraints.
        (movsf_1, movdf_integer): Likewise.
        (zero_extendsidi2_32, zero_extendsidi2_rex64): Likewise.
        (movdf_integer_rex64): New.
        (pushsf_rex64): Fix output constraints.
        * config/i386/sse.md (sse2_loadld): Split rm alternative, use Yi.
        (sse2_stored): Likewise.
        (sse2_storeq_rex64): New.
        * config/i386/i386.c (x86_inter_unit_moves): Enable for not 
        amd and not generic.
        (ix86_secondary_memory_needed): Don't bypass TARGET_INTER_UNIT_MOVES
        for optimize_size.  Remove SF/DFmode hack.

Ira


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30921

[Bug bootstrap/30921] Bootstrap failure with -ftree-vectorize on i386

[ubizjak at gmail dot com]

------- Comment #2 from ubizjak at gmail dot com  2007-02-22 08:11 -------
(In reply to comment #0)
> Bootstrap with vectorization enabled fails on i386 starting from revision
> 121767:
> http://gcc.gnu.org/viewcvs?view=rev&revision=121767

Could you post exact steps how to reproduce this failure?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30921

[Bug bootstrap/30921] Bootstrap failure with -ftree-vectorize on i386

[irar at il dot ibm dot com]

------- Comment #3 from irar at il dot ibm dot com  2007-02-22 08:22 -------
(In reply to comment #2)
> (In reply to comment #0)
> > Bootstrap with vectorization enabled fails on i386 starting from revision
> > 121767:
> > http://gcc.gnu.org/viewcvs?view=rev&revision=121767
> Could you post exact steps how to reproduce this failure?

Run

make bootstrap BOOT_CFLAGS="-O2 -g -ftree-vectorize -msse2"

Ira


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30921

[Bug bootstrap/30921] Bootstrap failure with -ftree-vectorize on i386

[ubizjak at gmail dot com]

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------- Comment #4 from ubizjak at gmail dot com  2007-02-22 09:54 -------
Confirmed, the bootstrap breaks with;

/home/uros/gcc-i386/./gcc/xgcc -B/home/uros/gcc-i386/./gcc/
-B/usr/local/i686-pc-linux-gnu/bin/ -B/usr/local/i686-pc-linux-gnu/lib/
-isystem /usr/local/i686-pc-linux-gnu/include -isystem
/usr/local/i686-pc-linux-gnu/sys-include -O2 -g -O2 -O2  -O2 -g -O2  -DIN_GCC  
 -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition  -isystem ./include  -fPIC -g -DHAVE_GTHR_DEFAULT
-DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED   -I. -I. -I../.././gcc
-I../../../gcc-svn/trunk/libgcc -I../../../gcc-svn/trunk/libgcc/.
-I../../../gcc-svn/trunk/libgcc/../gcc
-I../../../gcc-svn/trunk/libgcc/../include
-I../../../gcc-svn/trunk/libgcc/../libdecnumber -I../../libdecnumber -o
_floatdisf.o -MT _floatdisf.o -MD -MP -MF _floatdisf.dep -DL_floatdisf -c
../../../gcc-svn/trunk/libgcc/../gcc/libgcc2.c \
  -fvisibility=hidden -DHIDE_EXPORTS
../../../gcc-svn/trunk/libgcc/../gcc/libgcc2.c: In function â__fixunsxfdiâ:
../../../gcc-svn/trunk/libgcc/../gcc/libgcc2.c:1245: error: verify_flow_info:
Wrong probability of edge 7->9 -2147483648
../../../gcc-svn/trunk/libgcc/../gcc/libgcc2.c:1245: error: verify_flow_info:
Wrong probability of edge 7->8 -2147473648
../../../gcc-svn/trunk/libgcc/../gcc/libgcc2.c:1245: internal compiler error:
verify_flow_info failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make[3]: *** [_fixunsxfdi.o] Error 1


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ubizjak at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-02-22 09:54:14
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30921

[Bug target/30921] [4.3 Regression] Bootstrap failure with -ftree-vectorize on i386

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|bootstrap                   |target
           Keywords|                            |build
            Summary|Bootstrap failure with -    |[4.3 Regression] Bootstrap
                   |ftree-vectorize on i386     |failure with -ftree-
                   |                            |vectorize on i386
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30921

[Bug target/30921] [4.3 Regression] Bootstrap failure with -ftree-vectorize on i386

[rth at gcc dot gnu dot org]

------- Comment #5 from rth at gcc dot gnu dot org  2007-02-22 18:07 -------
I don't think this has anything to do with either vectorization or my patch.
I was seeing that same failure with --with-arch=pentium4 before my patch.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30921

[Bug target/30921] [4.3 Regression] Bootstrap failure with -ftree-vectorize on i386

[pinskia at gcc dot gnu dot org]

------- Comment #6 from pinskia at gcc dot gnu dot org  2007-02-23 00:43 -------


*** This bug has been marked as a duplicate of 30825 ***


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pinskia at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30921