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When vectors are built from a single value, the ARM lowering issues a scalar_to_vector node. This node is then always morphed into a move from the general purpose unit to the vector unit. When the value comes from a load, this can be simplified into a vector load to the right lane. This patch changes the lowering of insert_vector_elt to expose a vector friendly pattern in this situation. This is a step toward fixing <rdar://problem/14170854>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186999 91177308-0d34-0410-b5e6-96231b3b80d8 |
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