Item 122 from the old PROBLEMS file (no test case available): ---------------------------------------- When insn-output.c turns a bit-test into a sign-test, it should see whether the condition code is already set up with that sign. ----------------------------------------
-- Summary: [cc0] insn-output.c should optimize sign-tests better Product: gcc Version: unknown Status: UNCONFIRMED Keywords: missed-optimization Severity: enhancement Priority: P2 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: steven at gcc dot gnu dot org CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19206