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3c02165172
Summary: If we're doing a v4f32/v4i32 shuffle on x86 with SSE4.1, we can lower certain shufflevectors to an insertps instruction: When most of the shufflevector result's elements come from one vector (and keep their index), and one element comes from another vector or a memory operand. Added tests for insertps optimizations on shufflevector. Added support and tests for v4i32 vector optimization. Reviewers: nadav Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D3475 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207291 91177308-0d34-0410-b5e6-96231b3b80d8 |
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