[LLVMbugs] [Bug 9001] New: clang should warn if |= is used without parens in an if / while

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=9001

           Summary: clang should warn if |= is used without parens in an
                    if / while
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Driver
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: nicolasweber at gmx.de
                CC: llvmbugs at cs.uiuc.edu


Clang currently warns about

    if (a = b)

and suggests parentheses if the assignment is really what the author intended.

It should do the same for

    if (a |= b)

This would have caught this bug:
http://codereview.chromium.org/6320005/diff/1/chrome/browser/tab_contents/thumbnail_generator.cc

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