[Bug target/34493] New: [4.2/4.3 Regression] ICE reload_cse_simplify_operands, at postreload.c:392 on powerpc with -funroll-loops

[tbm at cyrius dot com]

[ Forwarded from http://bugs.debian.org/452811 ]

We're seeing the following ICE with 4.2/4.3 and -funroll-loops:

/home/tbm/14406.c: In function 'fp_mul_comba_small':
/home/tbm/14406.c:2073: error: insn does not satisfy its constraints:
(insn 30288 1486 1488 11 (set (mem/c:DI (plus:SI (reg/f:SI 1 1)
                (const_int 32760 [0x7ff8])) [0 t.6656+0 S8 A8])
        (reg:DI 27 27)) 282 {*movdi_internal32} (nil)
    (nil))
/home/tbm/14406.c:2073: internal compiler error: in
reload_cse_simplify_operands, at postreload.c:392
Please submit a full bug report,

I've been running delta for 10 days (!) now but the file hasn't gotten
smaller than 150KB yet.


-- 
           Summary: [4.2/4.3 Regression] ICE reload_cse_simplify_operands,
                    at postreload.c:392 on powerpc with -funroll-loops
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tbm at cyrius dot com
GCC target triplet: powerpc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34493