ARM mode 'mov' to 'mvn' assembler alias.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143237 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index ad5f061..03fba5a 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -657,6 +657,14 @@
     int64_t Value = CE->getValue();
     return ARM_AM::getSOImmVal(Value) != -1;
   }
+  bool isARMSOImmNot() const {
+    if (Kind != k_Immediate)
+      return false;
+    const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+    if (!CE) return false;
+    int64_t Value = CE->getValue();
+    return ARM_AM::getSOImmVal(~Value) != -1;
+  }
   bool isT2SOImm() const {
     if (Kind != k_Immediate)
       return false;
@@ -1257,6 +1265,14 @@
     Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
   }
 
+  void addARMSOImmNotOperands(MCInst &Inst, unsigned N) const {
+    assert(N == 1 && "Invalid number of operands!");
+    // The operand is actually a so_imm, but we have its bitwise
+    // negation in the assembly source, so twiddle it here.
+    const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+    Inst.addOperand(MCOperand::CreateImm(~CE->getValue()));
+  }
+
   void addSetEndImmOperands(MCInst &Inst, unsigned N) const {
     assert(N == 1 && "Invalid number of operands!");
     addExpr(Inst, getImm());