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Commit 665ccbff authored by Simon Pilgrim's avatar Simon Pilgrim
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[Cost][X86] Add v2i64 truncation costs 

We are missing costs for a lot of truncation cases, I'm hoping to address all the 'zero cost' cases in trunc.ll

I thought this was a vector widening side effect, but even before this we had some interesting LV decisions (notably over indvars) being made due to these zero costs.

llvm-svn: 372498
parent a506ed25
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