[Bug c/61240] [4.9/5/6 Regression] Incorrect warning "integer overflow in expression" on pointer-pointer subtraction

[divyajyotidas15 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61240

Divya Jyoti Das <divyajyotidas15 at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |divyajyotidas15 at gmail dot com

--- Comment #12 from Divya Jyoti Das <divyajyotidas15 at gmail dot com> ---
(In reply to Marek Polacek from comment #7)
> But C++ has its own pointer_diff version that doesn't do such optimization. 
> With my change the C FE would generate the same expr as the C++ FE.  And FEs
> shouldn't perform such optimizations anyway.