[Bug rtl-optimization/84071] [7/8 regression] wrong elimination of zero-extension after sign-extended load

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84071

--- Comment #17 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
Author: ebotcazou
Date: Wed Jan 31 15:01:40 2018
New Revision: 257237

URL: https://gcc.gnu.org/viewcvs?rev=257237&root=gcc&view=rev
Log:
        PR rtl-optimization/84071
        * doc/tm.texi.in (WORD_REGISTER_OPERATIONS): Add explicit case.
        * doc/tm.texi: Regenerate.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/doc/tm.texi
    trunk/gcc/doc/tm.texi.in