rtx_constant_pool Struct Reference
Collaboration diagram for rtx_constant_pool:
Data Fields | |
| struct constant_descriptor_rtx * | first |
| struct constant_descriptor_rtx * | last |
| htab_t | const_rtx_htab |
| HOST_WIDE_INT | offset |
Detailed Description
Used in the hash tables to avoid outputting the same constant twice. Unlike 'struct constant_descriptor_tree', RTX constants are output once per function, not once per file.
??? Only a few targets need per-function constant pools. Most can use one per-file pool. Should add a targetm bit to tell the difference.
Field Documentation
| htab_t rtx_constant_pool::const_rtx_htab |
Hash facility for making memory-constants from constant rtl-expressions.
It is used on RISC machines where immediate integer arguments and
constant addresses are restricted so that such constants must be stored
in memory.
| struct constant_descriptor_rtx* rtx_constant_pool::first |
Pointers to first and last constant in pool, as ordered by offset.
| struct constant_descriptor_rtx* rtx_constant_pool::last |
| HOST_WIDE_INT rtx_constant_pool::offset |
Current offset in constant pool (does not include any
machine-specific header).
The documentation for this struct was generated from the following file:
