[LLVMbugs] [Bug 18073] New: Off-by-one in warnings generated for too large bit-shifts

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=18073

            Bug ID: 18073
           Summary: Off-by-one in warnings generated for too large
                    bit-shifts
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Static Analyzer
          Assignee: kremenek at apple.com
          Reporter: sim at hostway.ca
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

No warning (incorrect):
echo 'int main(){ return 0ULL << 64; }' | clang -O2 --analyze -xc - -o
/dev/null

Warning (correct):
echo 'int main(){ return 0ULL << 65; }' | clang -O2 --analyze -xc - -o
/dev/null

Warning (correct):
echo 'int main(){ return 0ULL << 64; }' | clang -O2 -xc - -o /dev/null

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