1  using System;
 2  
 3  namespace ARMeilleure.IntermediateRepresentation
 4  {
 5      enum OperandType
 6      {
 7          None,
 8          I32,
 9          I64,
10          FP32,
11          FP64,
12          V128,
13      }
14  
15      static class OperandTypeExtensions
16      {
17          public static bool IsInteger(this OperandType type)
18          {
19              return type == OperandType.I32 ||
20                     type == OperandType.I64;
21          }
22  
23          public static RegisterType ToRegisterType(this OperandType type)
24          {
25              return type switch
26              {
27                  OperandType.FP32 => RegisterType.Vector,
28                  OperandType.FP64 => RegisterType.Vector,
29                  OperandType.I32 => RegisterType.Integer,
30                  OperandType.I64 => RegisterType.Integer,
31                  OperandType.V128 => RegisterType.Vector,
32                  _ => throw new InvalidOperationException($"Invalid operand type \"{type}\"."),
33              };
34          }
35  
36          public static int GetSizeInBytes(this OperandType type)
37          {
38              return type switch
39              {
40                  OperandType.FP32 => 4,
41                  OperandType.FP64 => 8,
42                  OperandType.I32 => 4,
43                  OperandType.I64 => 8,
44                  OperandType.V128 => 16,
45                  _ => throw new InvalidOperationException($"Invalid operand type \"{type}\"."),
46              };
47          }
48  
49          public static int GetSizeInBytesLog2(this OperandType type)
50          {
51              return type switch
52              {
53                  OperandType.FP32 => 2,
54                  OperandType.FP64 => 3,
55                  OperandType.I32 => 2,
56                  OperandType.I64 => 3,
57                  OperandType.V128 => 4,
58                  _ => throw new InvalidOperationException($"Invalid operand type \"{type}\"."),
59              };
60          }
61      }
62  }