[llvm-bugs] [Bug 33523] New: Add a global hotness threshold for emitting remarks

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=33523

            Bug ID: 33523
           Summary: Add a global hotness threshold for emitting remarks
           Product: tools
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: opt-viewer
          Assignee: unassignedbugs at nondot.org
          Reporter: anemet at apple.com
                CC: anemet at apple.com, llvm-bugs at lists.llvm.org

For large programs, it makes no sense to emit remarks on cold code.  If PGO is
available we should not emit remarks on cold code.  This should dramatically
improve the performance of opt-viewer since that is bottlenecked on YAML
parsing.

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