[llvm-bugs] [Bug 39918] New: [llvm-exegesis] DIV64r "snippet crashed while running"

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Fri Dec 7 11:00:01 PST 2018


https://bugs.llvm.org/show_bug.cgi?id=39918

            Bug ID: 39918
           Summary: [llvm-exegesis] DIV64r "snippet crashed while running"
           Product: tools
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: llvm-exegesis
          Assignee: unassignedbugs at nondot.org
          Reporter: llvm-dev at redking.me.uk
                CC: clement.courbet at gmail.com, gchatelet at google.com,
                    llvm-bugs at lists.llvm.org

llvm-exegesis -mode=uops -opcode-name=DIV64r

Check generated assembly with: /usr/bin/objdump -d /tmp/snippet-80e6ba.o
---
mode:            uops
key:
  instructions:
    - 'DIV64r RSI'
  config:          ''
  register_initial_values:
    - 'RSI=0x0'
    - 'RAX=0x0'
    - 'RDX=0x0'
cpu_name:        btver2
llvm_triple:     x86_64-unknown-linux-gnu
num_repetitions: 10000
measurements:    []
error:           snippet crashed while running
info:            instruction is serial, repeating a random one.
assembled_snippet:
48BE000000000000000048B8000000000000000048BA000000000000000048F7F648F7F648F7F648F7F648F7F648F7F648F7F648F7F648F7F648F7F648F7F648F7F648F7F648F7F648F7F648F7F6C3

latency fails in the same way

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