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ControlFlowGraph

shape_vm::mir::cfg

Struct ControlFlowGraph 

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pub struct ControlFlowGraph { /* private fields */ }
Expand description

A control flow graph for a MIR function. Provides predecessor/successor queries and traversal orders.

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impl ControlFlowGraph

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pub fn build(mir: &MirFunction) -> Self

Build a CFG from a MIR function.

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pub fn successors(&self, block: BasicBlockId) -> &[BasicBlockId]

Get the successors of a block.

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pub fn predecessors(&self, block: BasicBlockId) -> &[BasicBlockId]

Get the predecessors of a block.

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pub fn reverse_postorder(&self) -> Vec<BasicBlockId>

Reverse postorder traversal (useful for forward dataflow analysis).

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pub fn dominators(&self) -> HashMap<BasicBlockId, BasicBlockId>

Compute dominators using the iterative dataflow algorithm.

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pub fn is_reachable(&self, target: BasicBlockId) -> bool

Check if a block is reachable from the entry.

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impl Debug for ControlFlowGraph

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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