[Bug tree-optimization/41661] New: [4.5 Regression] ICE due to IPCP trying to create/fold a REAL typed comparision

["pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

gcc.dg/vmx/bug-2.c fails at -O3 with the following ICE:
/home/apinski/src/local/gcc/gcc/testsuite/gcc.dg/vmx/bug-2.c:24:1: internal
compiler error: in build_int_cst_wide, at tree.c:1147

Which is caused by the fold_binary call here:
#10 0x109fe834 in ipcp_lattice_from_jfunc (info=0x1119b3b0, lat=0xff90c4ec,
jfunc=0x1119bc98) at /home/apinski/src/local/gcc/gcc/ipa-cp.c:302
302             cst = fold_binary (jfunc->value.pass_through.operation,

(gdb) p debug_generic_expr (cst)
1.0e+0
$1 = void
(gdb) p debug_generic_expr (jfunc->value.pass_through.operand)
1.0e+0

I will see if I can get a non PowerPC specific testcase soon.


-- 
           Summary: [4.5 Regression] ICE due to IPCP trying to create/fold a
                    REAL typed comparision
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
GCC target triplet: powerpc*-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41661