Assembly parsing for 3-register variant of VLD1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142675 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index 7ec3c8e..1db8268 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -920,6 +920,11 @@
     return VectorList.Count == 2;
   }
 
+  bool isVecListThreeD() const {
+    if (Kind != k_VectorList) return false;
+    return VectorList.Count == 3;
+  }
+
   bool isVectorIndex8() const {
     if (Kind != k_VectorIndex) return false;
     return VectorIndex.Val < 8;
@@ -1519,6 +1524,13 @@
     Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
   }
 
+  void addVecListThreeDOperands(MCInst &Inst, unsigned N) const {
+    assert(N == 1 && "Invalid number of operands!");
+    // Only the first register actually goes on the instruction. The rest
+    // are implied by the opcode.
+    Inst.addOperand(MCOperand::CreateReg(VectorList.RegNum));
+  }
+
   void addVectorIndex8Operands(MCInst &Inst, unsigned N) const {
     assert(N == 1 && "Invalid number of operands!");
     Inst.addOperand(MCOperand::CreateImm(getVectorIndex()));