[llvm-bugs] [Bug 40897] New: APInt::getBitsNeeded is wrong for INT_MIN

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https://bugs.llvm.org/show_bug.cgi?id=40897

            Bug ID: 40897
           Summary: APInt::getBitsNeeded is wrong for INT_MIN
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: regehr at cs.utah.edu
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org

APInt::getBitsNeeded("-128", 10) returns 9 but since only 8 bits are required
to represent -128, we should return that instead

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