[Bug target/67321] [ARM] Exploit Wide Add operations when appropriate

[michael.collison at linaro dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67321

--- Comment #1 from Michael Collison <michael.collison at linaro dot org> ---
Created attachment 36242
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36242&action=edit
Patch to generate arm vaddw