Quentin Colombet 17f99a991f [ARM][ISel] Improve the lowering of vector loads.
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
2013-07-23 22:34:47 +00:00
..
2013-05-20 08:01:34 +00:00
2013-07-18 13:17:26 +00:00