[Bug tree-optimization/50413] Incorrect instruction is used to shift value of 128 bit xmm0 registrer

[ubizjak at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50413

--- Comment #5 from Uros Bizjak <ubizjak at gmail dot com> 2011-09-15 14:17:34 UTC ---
(In reply to comment #4)

> We have V.bitmap.b63 = V.bitmap.b64; to shift a lower bit of the upper quadword
> but GCC has decided not to do this.

Ah, I didn't see the purpose of this assignment. I will investigate this a bit
more.