[llvm-bugs] [Bug 34535] New: Negative numbers reported with: opt -time-passes -track-memory

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=34535

            Bug ID: 34535
           Summary: Negative numbers reported with: opt -time-passes
                    -track-memory
           Product: tools
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: opt
          Assignee: unassignedbugs at nondot.org
          Reporter: anmparal at cisco.com
                CC: llvm-bugs at lists.llvm.org

Why are there negative numbers in the Mem column?

opt -time-passes -track-memory ./p0.bc -O3 -o p0.O3.bc

===-------------------------------------------------------------------------===
                      ... Pass execution timing report ...
===-------------------------------------------------------------------------===

…

---User Time---   --User+System--   ---Wall Time---  ---Mem---  --- Name ---
0.0010 ( 33.3%)   0.0010 ( 33.3%)   0.0012 ( 41.2%)     324576  Simplify the
CFG
…
 0.0000 (  0.0%)   0.0000 (  0.0%)   0.0000 (  0.4%)      -7184  Scalar
Evolution Analysis
…

Ref: http://lists.llvm.org/pipermail/llvm-dev/2017-September/117069.html

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