GCC Middle and Back End API Reference
incoming_reg_info Struct Reference

Data Fields

int nregs
bool unusable

Detailed Description

   A structure to record information for each hard register at the start of
   a basic block.  

Field Documentation

int incoming_reg_info::nregs
     Holds the number of registers used in the chain that gave us information
     about this register.  Zero means no information known yet, while a
     negative value is used for something that is part of, but not the first
     register in a multi-register value.  
bool incoming_reg_info::unusable
     Set to true if we have accesses that conflict in the number of registers

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