[Bug rtl-optimization/110717] Double-word sign-extension missed-optimization

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110717

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
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             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |ubizjak at gmail dot com

--- Comment #4 from Uroš Bizjak <ubizjak at gmail dot com> ---
Created attachment 55578
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55578&action=edit
Proposed patch

Patch in testing.