[Bug tree-optimization/33923] New: [4.3 Regression] ICE in reload_cse_simplify_operands (insn does not satisfy its constraints)

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

With current trunk on ia64:

(sid)tbm@coconut0:~$ /usr/lib/gcc-snapshot/bin/gcc -c -O3 brltty-braille.c
brltty-braille.c: In function 'brl_readCommand':
brltty-braille.c:72: error: insn does not satisfy its constraints:
(insn 8165 2623 3131 8 brltty-braille.c:49 (set (reg:SI 63 loc31)
        (reg:SI 326 b6 [1409])) 4 {*movsi_internal} (nil))
brltty-braille.c:72: internal compiler error: in reload_cse_simplify_operands,
at postreload.c:395
Please submit a full bug report,
with preprocessed source if appropriate.

I'll add my testcase.  I guess it would be possible to reduce it some more,
but it's really slow to compile (see PR33922) so I gave up on that.


-- 
           Summary: [4.3 Regression] ICE in reload_cse_simplify_operands
                    (insn does not satisfy its constraints)
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tbm at cyrius dot com
GCC target triplet: ia64-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33923