Add codegen support for NEON vst3 intrinsics with 128-bit vectors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83484 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/NEONPreAllocPass.cpp b/lib/Target/ARM/NEONPreAllocPass.cpp
index b121ac0..d0a3fbf 100644
--- a/lib/Target/ARM/NEONPreAllocPass.cpp
+++ b/lib/Target/ARM/NEONPreAllocPass.cpp
@@ -146,6 +146,24 @@
     NumRegs = 3;
     return true;
 
+  case ARM::VST3q8a:
+  case ARM::VST3q16a:
+  case ARM::VST3q32a:
+    FirstOpnd = 4;
+    NumRegs = 3;
+    Offset = 0;
+    Stride = 2;
+    return true;
+
+  case ARM::VST3q8b:
+  case ARM::VST3q16b:
+  case ARM::VST3q32b:
+    FirstOpnd = 4;
+    NumRegs = 3;
+    Offset = 1;
+    Stride = 2;
+    return true;
+
   case ARM::VST4d8:
   case ARM::VST4d16:
   case ARM::VST4d32: