[Bug tree-optimization/46216] [4.6 Regression] ICE: SSA corruption

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46216

--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-02 15:11:16 UTC ---
Reduced testcase:

typedef int Embryo_Cell;
int 
embryo_program_run(Embryo_Cell *cip)
{
    unsigned char op;
    Embryo_Cell offs;
    static const void *switchtable[256] = { 
        &&SWITCHTABLE_EMBRYO_OP_NONE, &&SWITCHTABLE_EMBRYO_OP_LOAD_PRI 
    };
    for (;;)
      {
        op = *cip++;
        while (1) {
            goto *switchtable[op];
SWITCHTABLE_EMBRYO_OP_LOAD_PRI:
            offs = *(Embryo_Cell *)cip++;
SWITCHTABLE_EMBRYO_OP_NONE:
            break;
        };
      }
    return offs;
}