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254 Commits

Author SHA1 Message Date
Cornelius Riemenschneider
64cf0906b5 Address review. 
Most important fix is that VNLength is now restricted to the subset
of value numbers that are Bounds in the RangeAnalysis.
 2020-04-29 15:10:30 +02:00
Cornelius Riemenschneider
9d2533c8ab Fix bug in handling of subtractions. 2020-04-29 13:07:15 +02:00
Cornelius Riemenschneider
e6d193294a Experimental library that tracks the length of memory. 
For each pointer, we start tracking (starting from the allocation or an array declaration)
1) how long is the chunk of memory allocated
2) where the current pointer is in this chunk of memory.
This information might not always exist, but when it does, it is reliable.
Currently only works intraprocedurally.
 2020-04-29 12:55:54 +02:00
yo-h
43bcd5b26c Add guidelines for experimental CodeQL queries and libraries 2020-02-24 15:08:31 -05:00