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<!---======================= begin_copyright_notice ============================
Copyright (C) 2020-2022 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ==========================-->
## Opcode
LABEL = 0x31
## Format
| | |
| --- | --- |
| 0x31(LABEL) | Label |
## Semantics
```
Declare a basic block.
```
## Description
```
Create a new basic block starting at <label>.
```
- **Label(uw):** Index of the label variable for the subroutine. It must be a block label
#### Properties
## Text
```
LABEL <label>
```
## Notes
The instruction itself is a nop. Label marks the start of the basic block, and may be used as the target of a JMP instruction.
There is no instruction to mark the end of a basic block; a basic block ends when we reach another control flow instruction.
|
