https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19987 Bug 19987 depends on bug 94920, which changed state.
Bug 94920 Summary: Failure to optimize abs pattern from arithmetic with selected operands based on comparisons with 0 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94920 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED