GCC Middle and Back End API Reference
edge_info_def Struct Reference
Collaboration diagram for edge_info_def:

Data Fields

sreal back_edge_prob
unsigned int back_edge:1

Detailed Description

   Similar information for edges.  

Field Documentation

unsigned int edge_info_def::back_edge
     True if the edge is a loopback edge in the natural loop.  
sreal edge_info_def::back_edge_prob
     In case edge is a loopback edge, the probability edge will be reached
     in case header is.  Estimated number of iterations of the loop can be
     then computed as 1 / (1 - back_edge_prob).  

The documentation for this struct was generated from the following file: