------- Comment #8 from rguenth at gcc dot gnu dot org 2006-03-23 22:09 ------- With structure aliasing on, we create 22326 SFTs for the CShadingContext::execute function. Aliasing completely breaks down then:
execute: Total number of aliased vops: 18901314 execute: Total number of aliased vops after grouping: 4421064 Referenced variables in execute: 80934 This all results in lots of basic blocks with hundreds of PHI nodes with hundreds of incoming edges in alias1. This is insane! Like # SFT.14821_22241 = PHI <SFT.14821_41418(2), ... , SFT.14821_22241(9627)>; (that line is 20000 characters long! Which makes roughly 1000 phi arguments!) and there are 8800 such PHI_EXPRs for just one basic block! -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26830
