[Bug target/28622] New: [4.1 regression] ICE in extract_insn, at recog.c:2084 (unecognizable insn)

["tbm at cyrius dot com" <gcc-bugzilla@gcc.gnu.org>]

We get the following ICE on m68k with gcc 4.1.  I checked today's SVN and 4.1
fails while 4.2 works.

(sid)34:tbm@usurper: ~] /usr/local/bin/m68k-linux-gnu-gcc-4.1.2 -c -O
kdelibs-slaveinterface.cpp
kdelibs-slaveinterface.cpp: In function â??QDataStream&
operator<<(QDataStream&, const KIO::UDSEntry&)â??:
kdelibs-slaveinterface.cpp:62: error: unrecognizable insn:
(insn 23 21 25 1 (set (mem/s/j/c:DI (plus:SI (reg/f:SI 26 virtual-stack-vars)
                (const_int -8 [0xfffffffffffffff8])) [0 a.m_long+0 S8 A16])
        (ashiftrt:DI (mem/s/j:DI (plus:SI (reg:SI 31 [ D.1850 ])
                    (const_int 2 [0x2])) [0 <variable>.m_long+0 S8 A16])
            (const_int 32 [0x20]))) -1 (nil)
    (nil))
kdelibs-slaveinterface.cpp:62: internal compiler error: in extract_insn, at
recog.c:2084
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
(sid)35:tbm@usurper: ~] /usr/local/bin/m68k-linux-gnu-gcc-4.1.2 -c
kdelibs-slaveinterface.cpp
(sid)36:tbm@usurper: ~] /usr/local/bin/m68k-linux-gnu-gcc-4.2.0 -c -O2
kdelibs-slaveinterface.cpp
(sid)37:tbm@usurper: ~]


-- 
           Summary: [4.1 regression] ICE in extract_insn, at recog.c:2084
                    (unecognizable insn)
           Product: gcc
           Version: 4.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tbm at cyrius dot com
  GCC host triplet: m68k-linux-gnu
GCC target triplet: m68k-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28622

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