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Author SHA1 Message Date
Manman Ren
dfd0b9b460 X86 SSE: update rsqrtss and rcpss to use two source operands and 
the first source operand is tied to the destination operand.

This is to accurately model the corresponding instructions where the upper
bits are unmodified.

rdar://12558838
PR14221


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167064 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-30 23:53:59 +00:00