[Bug target/46208] redundant extensions of argument registers

[ebotcazou at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46208

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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  Attachment #22188|0                           |1
        is obsolete|                            |

--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2010-11-03 
00:18:51 UTC ---
Created attachment 22243
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22243
Revised minimal patch

Lightly tested.