Register allocation method and apparatus for gernerating spill c

Details Register allocation method and apparatus for gernerating spill c Register allocation method and apparatus for gernerating spill c

1996-06-06

1999-08-31

Maung, Zarni

395707, G06F 945

Patent

active

059464917

ABSTRACT:
A method and apparatus for minimizing spill code in regions of low register pressure determines the register pressure at various locations in the computer program. When a live range is selected for spilling, spill code is generated to relieve the register pressure in regions of high register pressure, while spill code is avoided in regions of low register pressure. In this manner a minimum amount of spill code is generated, enhancing both the compile time and the run time of the resultant instruction stream.

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