Reuse existing variable; fix indentation

Author: s-barannikov

llvm/lib/Target/AArch64/AArch64InstrInfo.td

@@ -2971,11 +2971,11 @@ def : InstAlias<"tst $src1, $src2",
                          (logical_shifted_reg64 GPR64:$src2, 0)), 3>;
 
 def : InstAlias<"tst $src1, $src2$sh",
-               (ANDSWrs WZR, GPR32:$src1,
-                        (logical_shifted_reg32 GPR32:$src2, logical_shift32:$sh)), 2>;
+                (ANDSWrs WZR, GPR32:$src1,
+                         (logical_shifted_reg32 GPR32:$src2, logical_shift32:$sh)), 2>;
 def : InstAlias<"tst $src1, $src2$sh",
-               (ANDSXrs XZR, GPR64:$src1,
-                        (logical_shifted_reg64 GPR64:$src2, logical_shift64:$sh)), 2>;
+                (ANDSXrs XZR, GPR64:$src1,
+                         (logical_shifted_reg64 GPR64:$src2, logical_shift64:$sh)), 2>;
 
 
 def : Pat<(not GPR32:$Wm), (ORNWrr WZR, GPR32:$Wm)>;

llvm/utils/TableGen/Common/CodeGenInstAlias.cpp

@@ -73,7 +73,7 @@ static Expected<ResultOperand> matchSimpleOperand(const Init *Arg,
         if (!ArgName)
           return createStringError("register class argument must have a name");
         return ResultOperand::createRecord(ArgName->getAsUnquotedString(),
-                                           cast<DefInit>(Arg)->getDef());
+                                           ArgRec);
       }
 
       // Match 'Reg'.