[Bug rtl-optimization/17482] GCSE after reload replacing changing instructions

[steven at gcc dot gnu dot org]

------- Additional Comments From steven at gcc dot gnu dot org  2004-09-15 06:44 -------
Given your dumps, 
 
(insn:HI 111 109 112 6 (set (reg:SI 11 11 [136]) 
        (mem/s:SI (pre_inc:SI (reg/f:SI 29 29 [orig:118 ivtmp.43 ] [118])) [5 
b  
S4 A8])) 265 {*movsi_internal1} (insn_list:REG_DEP_ANTI 98 
(insn_list:REG_DEP_AN 
TI 97 (insn_list:REG_DEP_ANTI 81 (insn_list:REG_DEP_ANTI 82 (insn_list 96 
(insn_ 
list:REG_DEP_ANTI 99 (insn_list 132 (insn_list:REG_DEP_ANTI 84 
(insn_list:REG_DE 
P_ANTI 25 (nil)))))))))) 
    (expr_list:REG_INC (reg/f:SI 29 29 [orig:118 ivtmp.43 ] [118]) 
        (nil))) 
 
(insn:HI 112 111 113 6 (set (reg:SI 9 9 [137]) 
        (mem/s:SI (plus:SI (reg/f:SI 29 29 [orig:118 ivtmp.43 ] [118]) 
                (reg:SI 0 0 [135])) [5 S4 A8])) 265 {*movsi_internal1} 
(insn_lis 
t:REG_DEP_ANTI 98 (insn_list:REG_DEP_OUTPUT 97 (insn_list 96 (insn_list 111 
(ins 
n_list:REG_DEP_ANTI 99 (insn_list 132 (insn_list:REG_DEP_ANTI 84 
(insn_list:REG_ 
DEP_ANTI 25 (nil))))))))) 
    (nil)) 
 
oprs_unchanged_p should return false for insn 112.  Does it? 
 

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |steven at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17482