[LLVMbugs] [Bug 24080] Infinite loop with any optimization if control reaches end of non-void function

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=24080

Richard Smith <richard-llvm at metafoo.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |richard-llvm at metafoo.co.uk
         Resolution|---                         |INVALID

--- Comment #1 from Richard Smith <richard-llvm at metafoo.co.uk> ---
This code has undefined behavior. C++ does not allow control to reach the end
of a non-void function. At -O0, we give you a guaranteed crash when this
happens; at -O1 and above, we optimize on the assumption that this undefined
behavior does not occur. In all modes, we give you a warning that your code is
(probably) broken.

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