Add codegen support for NEON vst2 intrinsics with 128-bit vectors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83482 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/NEONPreAllocPass.cpp b/lib/Target/ARM/NEONPreAllocPass.cpp
index 1232f89..b121ac0 100644
--- a/lib/Target/ARM/NEONPreAllocPass.cpp
+++ b/lib/Target/ARM/NEONPreAllocPass.cpp
@@ -129,6 +129,13 @@
     NumRegs = 2;
     return true;
 
+  case ARM::VST2q8:
+  case ARM::VST2q16:
+  case ARM::VST2q32:
+    FirstOpnd = 3;
+    NumRegs = 4;
+    return true;
+
   case ARM::VST3d8:
   case ARM::VST3d16:
   case ARM::VST3d32: