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2 Commits

Author SHA1 Message Date
Evan Cheng
77f0b7a50a Instead of a vector load, shuffle and then extract an element. Load the element from address with an offset. 
pshufd $1, (%rdi), %xmm0
        movd %xmm0, %eax
=>
        movl 4(%rdi), %eax


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51026 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-13 08:35:03 +00:00
Evan Cheng
62a3f1538c - SSE4.1 extractfps extracts a f32 into a gr32 register. Very useful! Not. Fix the instruction specification and teaches lowering code to use it only when the only use is a store instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48746 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-24 21:52:23 +00:00