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2017-12-04tests: Remove trietest's dependence on cprintf.Gabe Black
Dumping the structure of the tries being constructed was useful for debugging when the trie data structure was being developed, but the output can't be automatically verified easily, and what's considered correct depends on the specific implementation of the trie itself. To make some of the earlier tests more meaningful, additional lookups were added which verified that the correct values were returned when the nodes of the trie were in particular arrangements. Change-Id: Ib464ad1804d13fe40882da2190d7bf452da83818 Reviewed-on: https://gem5-review.googlesource.com/6223 Reviewed-by: Brandon Potter <Brandon.Potter@amd.com> Maintainer: Gabe Black <gabeblack@google.com>
2017-12-04tests: Add a ptr helper function trietest.Gabe Black
This function casts an integer constant into a uint32_t * to make the actual test lines a bit less verbose. Change-Id: I9307dfd3d5861ddb9c0f6dcf4b28c846004f0a8d Reviewed-on: https://gem5-review.googlesource.com/6222 Reviewed-by: Brandon Potter <Brandon.Potter@amd.com> Maintainer: Gabe Black <gabeblack@google.com>
2012-04-14sim: A trie data structure specifically to speed up paging lookups.Gabe Black
This change adds a trie data structure which stores an arbitrary pointer type based on an address and a number of relevant bits. Then lookups can be done against the trie where the tree is traversed and the first legitimate match found is returned.