------- Comment #1 from jakub at gcc dot gnu dot org 2008-02-12 12:00 ------- But this one doesn't seem to be inlining related. Until vrp1 pass the var in question (D.20903) has just one SSA_NAME (D.20903_14) in the whole function, non-ab, initialized at the beginning of the loop and nothing before the loop or in loop header can throw. vrp introduces a lot of new SSA_NAMEs for this variable, now (ab) marked in the dump, but except one are of the form: # D.20903_627(ab) = PHI <D.20903_14(ab)(5)> # D.20903_628(ab) = PHI <D.20903_14(ab)(18)> # D.20903_629(ab) = PHI <D.20903_14(ab)(36)> and then one: # D.20903_630(ab) = PHI <D.20903_14(ab)(27), D.20903_628(ab)(25), D.20903_629(ab)(39), D.20903_14(ab)(42), D.20903_14(ab)(4), D .20903_627(ab)(8), D.20903_14(ab)(11)> the 3 are only used in this last PHI, so I wonder what was the point creating them. D.20903_630 is then used couple of times and so is the original D.20903_14.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35164
