Richard Earnshaw <rearnsha at gcc dot> changed:

           What    |Removed                     |Added
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |rearnsha at gcc dot
         Resolution|                            |INVALID

--- Comment #1 from Richard Earnshaw <rearnsha at gcc dot> 2010-09-27 
16:30:35 UTC ---
This particular case is invalid.  

The ARM ABI requires that short and char result types are extended to 32 bits
(using signed or unsigned extension as appropriate) before being returned. 
Since the compiler can't see inside the asm block to work out what is being
done it cannot remove the uxth instruction on the result.

This does not mean that some of your x-refed reports are invalid though.

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