|
GCC Middle and Back End API Reference
|
Data Fields | |
| int | nregs |
| bool | unusable |
A structure to record information for each hard register at the start of a basic block.
| 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
used.