------- Comment #1 from rguenth at gcc dot gnu dot org 2008-10-01 15:33 ------- Smaller testcase, FRE should remove the redundancy but doesn't.
unsigned int out[16]; unsigned int in[16]; unsigned int ia[16]; int foo (void) { unsigned int i; for (i = 0; i < 16; ++i) { out[i] = in[i]; ia[i] = in[i]; } } this is because we include VOPs in the value-numbering but fail to value-number them properly to account for non-aliased stores. -- rguenth at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2008-10-01 15:33:28 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37700