cfg

Vocabulary

compiler.cfg

Class description

Call flow graph. It has the following slots:

entry	Root basic-block of the graph.
word	The word the cfg is produced from.
post-order	The blocks of the cfg in a post order traversal sequence.
stack-frame	stack-frame of the cfg.
frame-pointer?	Whether the cfg needs a frame pointer. Only cfgs generated for #alien-callback nodes does need it. If the slot is t, then the frame pointer register (RBP on x86.64 archs) will not be clobbered by register allocation. See compiler.cfg.linear-scan for details.

See also

<cfg>, post-order

Definition

IN: compiler.cfg

TUPLE: cfg
    { entry basic-block initial: T{ basic-block } } word label
    stack-frame frame-pointer? post-order linear-order
    predecessors-valid? dominance-valid? loops-valid? ;