[Bug target/49799] gcc arm generates illegal sbfx instruction

[mikpe at it dot uu.se]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49799

Mikael Pettersson <mikpe at it dot uu.se> changed:

           What    |Removed                     |Added
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                 CC|                            |mikpe at it dot uu.se

--- Comment #1 from Mikael Pettersson <mikpe at it dot uu.se> 2011-07-21 
11:10:45 UTC ---
gcc-4.5.3 and gcc-4.4.6 also generate the invalid sbfx, gcc-4.3.6 appears to
work and generates

foo:
        ldrsh   r3, [r0, #0]
        mvn     r2, #0
        mov     r3, r3, asl r2
        cmp     r2, r3, asr #16
        movgt   r3, #0  @ movhi
        strgth  r3, [r0, #0]    @ movhi
        bx      lr