en Copyright 2015 Java http://172.16.0.5:8080/history/llvm-project-15.0.7/compiler-rt/lib/gwp_asan/stack_trace_compressor.h#be8a2f75 [GWP-ASan] Implement stack frame compression.Summary:This patch introduces stack frame compression to GWP-ASan. Each stack frame isvariable-length integer encoded as the difference between frame[i] andframe[i - 1]. Furthermore, we use zig-zag encoding on the difference to ensurethat negative differences are also encoded into a relatively small number ofbytes.Examples of what the compression looks like can be seen in`gwp_asan/tests/compression.cpp`.This compression can reduce the memory consumption cost of stack traces by~50%.Reviewers: vlad.tsyrklevichReviewed By: vlad.tsyrklevichSubscribers: mgorny, #sanitizers, llvm-commits, eugenis, morehouseTags: #sanitizers, #llvmDifferential Revision: https://reviews.llvm.org/D66189llvm-svn: 369048 List of files: /llvm-project-15.0.7/compiler-rt/lib/gwp_asan/stack_trace_compressor.h Thu, 15 Aug 2019 21:09:09 +0000 Mitch Phillips <mitchphillips@outlook.com>