Index - I
| ImageMemory | SpirV.MemorySemantics |
| Import | SpirV.LinkageType |
| InclusiveScan | SpirV.GroupOperation |
| Index | SpirV.Decoration |
| InLine | SpirV.FunctionControlMask |
| Input | SpirV.StorageClass |
| InputIsolines | SpirV.ExecutionMode |
| InputLines | SpirV.ExecutionMode |
| InputLinesAdjacency | SpirV.ExecutionMode |
| InputPoints | SpirV.ExecutionMode |
| InputQuads | SpirV.ExecutionMode |
| InputTriangles | SpirV.ExecutionMode |
| InputTrianglesAdjacency | SpirV.ExecutionMode |
| InstanceId | SpirV.BuiltIn |
| Instruction | SpirV.Instructions |
| Invariant | SpirV.Decoration |
| InvocationId | SpirV.BuiltIn |
| Invocations | SpirV.ExecutionMode |