ARM NEON two-operand aliases for VSHL(immediate).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146125 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index d91ce93..7e1d633 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -611,6 +611,14 @@
     int64_t Value = CE->getValue();
     return Value >= 0 && Value < 32;
   }
+  bool isImm0_63() const {
+    if (Kind != k_Immediate)
+      return false;
+    const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+    if (!CE) return false;
+    int64_t Value = CE->getValue();
+    return Value >= 0 && Value < 64;
+  }
   bool isImm8() const {
     if (Kind != k_Immediate)
       return false;