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design of the storage allocation policy

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ALLOCATION:
	design of the storage allocation policy
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Thomas Conway
1994-08-10 11:00:06 +00:00
parent 119c41874a
commit 3c63bf142d
1 changed files with 12 additions and 0 deletions
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compiler/notes/ALLOCATION Normal file
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Strategy for allocating storage:
1. Allocate stack for variables which HAVE to have it.
2. Assign 'known' locations for variables at the end of branches.
2a if the variable is in follow_vars, use that location
2b if the variable is not then use goalinfo derived information
ELSE use stack location ELSE panic
3. Assign inbetween locations for eager code generation:
use 2a, 2b, allocate 'any' free register.