[Bug target/17853] -O2 ICE for MMX testcase

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-10-05 22:21 
-------
Confirmed, the problem comes down to:
(insn 29 28 31 0 (set (reg:V8QI 59 [ D.2054 ])
        (eq:V8QI (reg:V8QI 60 [ D.2051 ])
            (reg:V8QI 60 [ D.2051 ]))) 627 {eqv8qi3} (insn_list 28 (nil))
    (expr_list:REG_EQUAL (const_int 1 [0x1])
        (nil)))

Looks like CSE is adding the REG_EQUAL for no reason.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
          Component|c                           |target
     Ever Confirmed|                            |1
           Keywords|                            |ice-on-valid-code
   Last reconfirmed|0000-00-00 00:00:00         |2004-10-05 22:21:37
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17853