Jim Grosbach f20d9ee6a6 X86: Correct vectorization cost model for v8f32->v8i8.
Fix the cost model to reflect the reality of our codegen.

rdar://16370633

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204880 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-27 00:04:11 +00:00
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