[Bug tree-optimization/23816] New: ICE in extract_insn, at recog.c:2084

[belyshev at depni dot sinp dot msu dot ru]

// test case, compile with "-O1 -fstrict-aliasing -ftree-vectorize" :

void foo (float a[32], float b[2][32])
{
  int i;
  for (i = 0; i < 32; i++)
    a[i] = (b[0][i] > b[1][i]) ? b[0][i] : b[1][i];
}

// compiler output:
psy.i: In function 'foo':
psy.i:6: error: unrecognizable insn:
(insn 98 97 99 11 (set (reg:V4SF 110)
        (unspec:V4SF [
                (reg:V4SF 89 [ vect_var_.40 ])
                (reg:V4SF 85 [ vect_var_.47 ])
            ] 52)) -1 (nil)
    (nil))
psy.i:6: internal compiler error: in extract_insn, at recog.c:2084

-- 
           Summary: ICE in extract_insn, at recog.c:2084
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: belyshev at depni dot sinp dot msu dot ru
                CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: x86_64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23816