[LLVMbugs] [Bug 5789] totally empty .o file generated with -fomit-frame-pointer

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=5789


Chris Lattner <clattner at apple.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID




--- Comment #1 from Chris Lattner <clattner at apple.com>  2009-12-15 12:31:29 ---
The compiler is right.  You're loading through an undefined pointer, which is
undefined behavior.  It has realized that your function is not reachable, so it
deletes the body.  If you use '-emit-llvm -S' you'll see that it has an
'unreachable' instruction in the entry of the llvm ir.  The .s file probably
just has a label for the function.


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