[llvm-bugs] [Bug 38884] New: [llvm-exegesis] Add variant scheduler class support

via llvm-bugs llvm-bugs at lists.llvm.org
Mon Sep 10 04:13:03 PDT 2018


https://bugs.llvm.org/show_bug.cgi?id=38884

            Bug ID: 38884
           Summary: [llvm-exegesis] Add variant scheduler class support
           Product: new-bugs
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: llvm-dev at redking.me.uk
                CC: andrea.dibiagio at gmail.com, clement.courbet at gmail.com,
                    gchatelet at google.com, greg.bedwell at sony.com,
                    llvm-bugs at lists.llvm.org

This currently is reported as a variant with incorrect uops/analysis data

---
mode:            latency
key:             
  instructions:    
    - 'PXORrr XMM8 XMM8 XMM8'
  config:          ''
cpu_name:        btver2
llvm_triple:     x86_64-unknown-linux-gnu
num_repetitions: 10000
measurements:    
  - { key: latency, value: 1.5816, debug_string: '' }
error:           ''
info:            explicit self cycles, selecting one aliasing Conf.
assembled_snippet:
4883EC10C7042440404040C744240440404040C744240840404040C744240C40404040C57A6F04244883C41066450FEFC066450FEFC066450FEFC066450FEFC066450FEFC066450FEFC066450FEFC066450FEFC066450FEFC066450FEFC066450FEFC066450FEFC066450FEFC066450FEFC066450FEFC066450FEFC066450FEFC0C3
...

Valid   Variant uOps    Latency WriteProcRes    Idealized Resource Pressure
✔       ✔       16382

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