[LLVMbugs] [Bug 14877] New: Changing unrelated code changes emitted garbage value warning

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Wed Jan 9 10:06:45 PST 2013


             Bug #: 14877
           Summary: Changing unrelated code changes emitted garbage value
           Product: clang
           Version: trunk
          Platform: Macintosh
        OS/Version: MacOS X
            Status: NEW
          Severity: normal
          Priority: P
         Component: Static Analyzer
        AssignedTo: kremenek at apple.com
        ReportedBy: tjw at me.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 9843
  --> http://llvm.org/bugs/attachment.cgi?id=9843

See the attached example.

A warning is emitted for method 2. Changing method 1 to use the offending code
from method 2 makes the warning go *away* rather than duplicating it.

Also, the first warning looks bogus (the array should be filled entirely). Not
sure if this is a separate bug since if I just use the _fillValuesBackwards()
function, no warnings are emitted.

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