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eee659a076
This implements basic argument lowering for AArch64 in FastISel. It only handles a small subset of the C calling convention. It supports simple arguments that can be passed in GPR and FPR registers. This should cover most of the trivial cases without falling back to SelectionDAG. This fixes <rdar://problem/17890986>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214846 91177308-0d34-0410-b5e6-96231b3b80d8
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