[llvm-bugs] [Bug 33502] New: "Mismatched function data" warnings when collecting profiles for clang

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=33502

            Bug ID: 33502
           Summary: "Mismatched function data" warnings when collecting
                    profiles for clang
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: LLVM Codegen
          Assignee: unassignedclangbugs at nondot.org
          Reporter: vsk at apple.com
                CC: llvm-bugs at lists.llvm.org

After building some llvm tools with -fcoverage-mapping
-fprofile-instr-generate, running the tools, and merging the resulting raw
profiles, there are "N functions have mismatched data" warnings.

Investigate the source of these warnings, and improve the diagnostic to be more
helpful/precise.

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