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3 Commits

Author SHA1 Message Date
Chris Lattner
bbd318b76a rework the rotate-by-1 instructions to be defined like the 
shift-by-1 instructions, where the asmstring doesn't contain
the implicit 1.  It turns out that a bunch of these rotate
instructions were completely broken because they used 1 
instead of $1.

This fixes assembly mismatches on "rclb	$1, %bl" and friends,
where we used to generate the 3 byte form, we now generate the
proper 2-byte form.

llvm-svn: 118355
 2010-11-06 21:23:40 +00:00
Chris Lattner
4cf3aff9c1 integrate the 64-bit shifts into X86InstrShiftRotate.td. Enough for tonight. 
llvm-svn: 115608
 2010-10-05 07:13:35 +00:00
Chris Lattner
3d1c1ff4c2 move 32-bit shift and rotates out to their own file. 
llvm-svn: 115607
 2010-10-05 07:00:12 +00:00