[Bug tree-optimization/27084] Does not propagate memory load base through useless type conversion

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2006-04-08 17:21 -------
Hm, we have from DCE to forwprop

  struct cpp_token * D.6254;
  struct cpp_token * D.6253;

   #   temp_1334 = V_MAY_DEF <temp_330>;
   #   unsignedp_1335 = V_MAY_DEF <unsignedp_333>;
   #   op_1336 = V_MAY_DEF <op_351>;
   #   SMT.698_1337 = V_MAY_DEF <SMT.698_1262>;
   #   SMT.700_1338 = V_MAY_DEF <SMT.700_1287>;
   #   SMT.703_1339 = V_MAY_DEF <SMT.703_1307>;
   D.6253_558 = cpp_get_token (pfile_475);
   D.6254_560 = D.6253_558;
-  #   VUSE <op_1336>;
-  D.6255_561 = D.6254_560->type;
+  D.6255_561 = D.6253_558->type;
   D.6256_562 = (cpp_ttype) D.6255_561;
   #   SFT.637_563 = V_MUST_DEF <SFT.637_360>;
   op.op = D.6256_562;


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27084