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Better tests for gray lists

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Test uses an extra bit in 'marked' to mark all elements in gray lists
and then check against elements colored gray.
This commit is contained in:
Roberto Ierusalimschy
2020-08-07 14:45:20 -03:00
parent 7c3cb71fa4
commit f13dc59416
3 changed files with 37 additions and 10 deletions
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5
lgc.h
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@@ -69,13 +69,16 @@
/*
** Layout for bit use in 'marked' field. First three bits are
** used for object "age" in generational mode.
** used for object "age" in generational mode. Last bit is used
** by tests.
*/
#define WHITE0BIT 3 /* object is white (type 0) */
#define WHITE1BIT 4 /* object is white (type 1) */
#define BLACKBIT 5 /* object is black */
#define FINALIZEDBIT 6 /* object has been marked for finalization */
#define TESTBIT 7
#define WHITEBITS bit2mask(WHITE0BIT, WHITE1BIT)