Add VisibilityAnnotator to dump IR with visibility information.#4293
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Add VisibilityAnnotator to dump IR with visibility information.#4293copybara-service[bot] wants to merge 1 commit into
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This change introduces a new class, `VisibilityAnnotator`, which is an `IrAnnotator` that can be used to dump the IR with annotations showing the visibility BDD for each node. The `VisibilityAnalysis` class now provides an `annotator()` method to create an instance of this annotator. A test case is updated to demonstrate the use of the annotator by recording the annotated IR.
This creates output like:
```
fn MutuallyExclusivePrioritySelectCases(op: bits[1] id=1 visible[1], x: bits[4] id=2 visible[1], y: bits[4] id=3 visible[1]) -> bits[4] {
add.4: bits[4] = add(x, y, id=4) visible[x0]
sub.5: bits[4] = sub(x, y, id=5) visible[!x0]
ret priority_sel.6: bits[4] = priority_sel(op, cases=[add.4], default=sub.5, id=6) visible[1]
}
```
PiperOrigin-RevId: 918654496
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Add VisibilityAnnotator to dump IR with visibility information.
This change introduces a new class,
VisibilityAnnotator, which is anIrAnnotatorthat can be used to dump the IR with annotations showing the visibility BDD for each node. TheVisibilityAnalysisclass now provides anannotator()method to create an instance of this annotator. A test case is updated to demonstrate the use of the annotator by recording the annotated IR.This creates output like: