Spill DPair registers, not just QPR.

The arm_neon intrinsics can create virtual registers from the DPair
register class which allows both even-odd and odd-even D-register pairs.

This fixes PR12389.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153603 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/EDEmitter.cpp b/utils/TableGen/EDEmitter.cpp
index 1b473d3..3eed07c 100644
--- a/utils/TableGen/EDEmitter.cpp
+++ b/utils/TableGen/EDEmitter.cpp
@@ -569,6 +569,7 @@
   REG("DPR");
   REG("DPR_VFP2");
   REG("DPR_8");
+  REG("DPair");
   REG("SPR");
   REG("QPR");
   REG("QQPR");