[PATCH] D33454: [sanitizer] Change the 32-bit Primary AllocateRegion to reduce fragmentation

[Dmitry Vyukov via Phabricator via llvm-commits]

dvyukov added a comment.

FWIW I've solved a similar problem in tcmalloc by trimming blocks either on left or on right. Namely, if heap grows up we trim on right; if heap grows down we trim on left. But I don't see how it is better than this solution.


https://reviews.llvm.org/D33454