[llvm-bugs] [Bug 35639] New: [X86] CompleteModel scheduler models still missing instruction schedules

via llvm-bugs llvm-bugs at lists.llvm.org
Tue Dec 12 03:22:54 PST 2017


https://bugs.llvm.org/show_bug.cgi?id=35639

            Bug ID: 35639
           Summary: [X86] CompleteModel scheduler models still missing
                    instruction schedules
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: llvm-dev at redking.me.uk
                CC: andrew.v.tischenko at gmail.com, llvm-bugs at lists.llvm.org

Tablegen appears to consider an instruction as scheduled if it has either an
itinerary or a sched class, allowing us to set the CompleteModel = 1 flag. But
given that x86 models use itineraries OR the classes, they might not actually
be tagged with both, this should raise an error.

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