https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88702
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |missed-optimization Version|unknown |9.0 Target Milestone|--- |7.5 Summary|[6/7/8 regression] We do |[7/8/9 regression] We do |terrible job optimizing |terrible job optimizing |IsHTMLWhitespace from |IsHTMLWhitespace from |Firefox |Firefox --- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> --- You could also add match.pd rules merging stuff pair-wise... How's this a regression btw?