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dfe4e3e706
We were materialising big-endian constants using DAG nodes with types different from what was requested, followed by a bitcast. This is fine on little-endian machines where bitcasting is a nop, but we need a slightly different representation for big-endian. This adds a new set of NVCAST (natural-vector cast) operations which are always nops. Patch by Asiri Rathnayake. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217138 91177308-0d34-0410-b5e6-96231b3b80d8
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