[llvm-bugs] [Bug 38911] misoptimizing EMPTY_STACK was placed into .rodata

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=38911

Anton Korobeynikov <anton at korobeynikov.info> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |anton at korobeynikov.info
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Anton Korobeynikov <anton at korobeynikov.info> ---
The transformation is correct and the code is clearly UB. 

7.1.5.1 [dcl.type.cv] explicitly says:

4 Except that any class member declared mutable (7.1.1) can be modified, any
attempt to modify a const object during its lifetime (3.8) results in undefined
behavior.

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