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1.1 root 1: Copyright (c) 1980 Regents of the University of California.
2: All rights reserved. The Berkeley software License Agreement
3: specifies the terms and conditions for redistribution.
4:
5: @(#)DEBUGS 5.1 (Berkeley) 6/7/85
6:
7: WHAT THE DEBUG FLAGS MEAN:
8:
9: 0) Dump core on fatal errors. Set by default when -d is given.
10: Also prints statistics on optimizations.
11:
12: 1) Show data structures after optimization but before intermediate
13: code generation. Also causes each optimizer data structure to
14: be printed as it is created (before optimization).
15:
16: 2) Show data structures prior to optimization.
17:
18: 3) Show data structures after loop optimization but before other
19: optimizations.
20:
21: 4) Show data structures after loop optimization and CSE but before
22: other optimizations.
23:
24: 6) Don't perform loop optimization.
25:
26: 7) Don't do copy propagation optimization.
27:
28: 8) Show data structures after fatal errors.
29:
30: 9) Show data structures after loop optimization, CSE and copy
31: propagation but before register optimization.
32:
33: 10) Don't do register optimization.
34:
35: 12) Print statistics on memory allocation (local version only).
36:
37: 13) Don't do common subexpression elimination.
38:
39: 14) Print history of stack temporary allocations (mkaltmpn()).
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