The attached .i file (from sed) spends 50% of its compilation time on PRE with "-fprofile-generate -O2".
-- Summary: -fprofile-generate + PRE = big compile-time Product: gcc Version: 4.3.0 Status: UNCONFIRMED Keywords: compile-time-hog Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: bonzini at gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35639