[llvm-bugs] [Bug 36874] New: [llvm-mca] Add a reporting view suitable for schedule model testing

via llvm-bugs llvm-bugs at lists.llvm.org
Fri Mar 23 03:44:31 PDT 2018


            Bug ID: 36874
           Summary: [llvm-mca] Add a reporting view suitable for schedule
                    model testing
           Product: new-bugs
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: andrea.dibiagio at gmail.com
          Reporter: llvm-dev at redking.me.uk
                CC: craig.topper at gmail.com, greg.bedwell at sony.com,
                    llvm-bugs at lists.llvm.org, spatel+llvm at rotateright.com

I've added some pipe/resource tests for btver2 (Jaguar) at

The issue is that at the moment the resource pressure view is trying to
determine the likely pipe each instruction will go down based on the previous

But for these style of tests we'd ideally shows the 'pressure' based purely on
that instruction in question - so each resource would have num_cycles / chance
of using that resource (similar to the lat:rthroughput view on llc 

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