5 * Arc structure for call-graph.
7 * With pointers to the symbols of the parent and the child, a count
8 * of how many times this arc was traversed, and pointers to the next
9 * parent of this child and the next child of this parent.
13 Sym
*parent
; /* source vertice of arc */
14 Sym
*child
; /* dest vertice of arc */
15 unsigned long count
; /* # of calls from parent to child */
16 double time
; /* time inherited along arc */
17 double child_time
; /* child-time inherited along arc */
18 struct arc
*next_parent
; /* next parent of CHILD */
19 struct arc
*next_child
; /* next child of PARENT */
20 int has_been_placed
; /* have this arc's functions been placed? */
24 extern unsigned int num_cycles
; /* number of cycles discovered */
25 extern Sym
*cycle_header
; /* cycle headers */
27 extern void arc_add
PARAMS ((Sym
* parent
, Sym
* child
, unsigned long count
));
28 extern Arc
*arc_lookup
PARAMS ((Sym
* parent
, Sym
* child
));
29 extern Sym
**cg_assemble
PARAMS ((void));
31 extern unsigned int numarcs
;
33 #endif /* cg_arcs_h */
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