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3 Commits

Author SHA1 Message Date
Evan Cheng 1671a309fd Use movaps / movd to extract vector element 0 even with sse4.1. It's still cheaper than pextrw especially if the value is in memory. 
llvm-svn: 61555
 2009-01-02 05:29:08 +00:00
Evan Cheng 5e28227dbd Implement vector shift up / down and insert zero with ps{rl}lq / ps{rl}ldq. 
llvm-svn: 51667
 2008-05-29 08:22:04 +00:00
Evan Cheng 0f42730722 Use shuffles to implement insert_vector_elt for i32, i64, f32, and f64. 
llvm-svn: 44929
 2007-12-12 07:55:34 +00:00