[LLVMbugs] [Bug 2959] Miscompilation of expression with multiple side-effects

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Mon Oct 27 10:21:25 PDT 2008


Dale Johannesen <dalej at apple.com> changed:

           What    |Removed                     |Added
                 CC|                            |dalej at apple.com
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID

--- Comment #2 from Dale Johannesen <dalej at apple.com>  2008-10-27 12:21:23 ---
First, b in uninitialized, so the program has undefined behavior.  However,
initializing b to 0 does result in the behavior you describe (as it does with
gcc).  Second, I think this behavior is valid; in C99, see 6.5p2 and p3, and
example 7 (p15) in

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