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Sam Blackshear 94ceebfef8 [quandary] represent footprint as unified set of access path rather than conjunction of special sources ... Summary: In looking at summaries that Quandary took a long time to compute, one thing I notice frequently is redundancy in the footprint sources (e.g., I might see `Footprint(x), Footprint(x.f), Footprint(x*)`). `sudo perf top` indicates that joining big sets of sources is a major performance bottleneck, and a large number of footprint sources is surely a big part of this (since we expect the number of non-footprint sources to be small). This diff addresses the redundancy issue by using a more complex representation for a set of sources. The "known" sources are still in a set, but the footprint sources are now represented as a set of access paths (via an access trie). The access path trie is a minimal representation of a set of access paths, so it would represent the example above as a simple `x*`. This should make join/widen/<= faster and improve performance Reviewed By: jberdine Differential Revision: D5663980 fbshipit-source-id: 9fb66f8		8 years ago
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annotations	[make] print @ commands when passed VERBOSE=1	8 years ago
bin	[make] make infer/src/Makefile less phony	8 years ago
etc	[clang] replace yojson frontend with biniou frontend	10 years ago
lib	[linters] Restrict the remove observer check to when target ios sdk version is greater or equal than 9.0	8 years ago
models	[models] avoid race conditions when building and installing the models	8 years ago
src	[quandary] represent footprint as unified set of access path rather than conjunction of special sources	8 years ago
tests	[quandary] represent footprint as unified set of access path rather than conjunction of special sources	8 years ago
.ocp-indent	add ocp-indent configuration and eclipse launcher	10 years ago