GCC Middle and Back End API Reference
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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.