[Bug c++/55095] Wshift-overflow

[manu at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55095

Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jason at gcc dot gnu.org,
                   |                            |jsm28 at gcc dot gnu.org

--- Comment #1 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-10-27 17:58:10 UTC ---
Jason, Joseph,

Any hints how to implement this? build_binary_op seems the proper place, but I
am not sure how to compute the result from the operator trees and the operator
code. 

Is there any function to compute how many bits are required to store a value?