[llvm-bugs] [Bug 39139] New: When inserting DBG_VALUEs check for duplicates

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=39139

            Bug ID: 39139
           Summary: When inserting DBG_VALUEs check for duplicates
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: international.phantom at gmail.com
                CC: aprantl at apple.com, david.stenberg at ericsson.com,
                    dblaikie at gmail.com, greg.bedwell at sony.com,
                    llvm-bugs at lists.llvm.org, paul.robinson at am.sony.com,
                    paul_robinson at playstation.sony.com, vsk at apple.com

As part of the review of bug 38773, the used MIR test case, showed duplicated
DBG_VALUES:

=========================
renamable $ecx = COPY $eax, debug-location !31
    DBG_VALUE debug-use $ecx, debug-use $noreg, !14, !DIExpression(),
debug-location !23
    DBG_VALUE debug-use $ecx, debug-use $noreg, !14, !DIExpression(),
debug-location !23
=========================

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