[Bug tree-optimization/71240] [7 Regression] ICE on valid code at -O2 and above on x86_64-linux-gnu: verify_gimple failed

rguenth at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Tue May 24 15:09:00 GMT 2016


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71240

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
ICE fixed.  For the missed-optimization the proper conversion would include
detecting a bswap of bytes 1 to 4 and thus doing a "random" new subreg of
the source value.  Certainly doable but also might prove somewhat tricky
and costly (sub-regging say bytes 3 to 7 from a double).


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