Merge develop to master #124
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This optimization is based on the thread https://twitter.com/Danlark1/status/1539344279268691970 and uses shift right and narrow by 4 instruction https://developer.arm.com/documentation/ddi0596/2020-12/SIMD-FP-Instructions/SHRN--SHRN2--Shift-Right-Narrow--immediate-- To achieve that, I needed to redesign a little movemask into comparemask and have an additional step towards mask iteration. Our benchmarks showed 10-15% improvement on average for long matches.
Optimize vectorscan for aarch64 by using shrn instruction
Fixed the PCRE download location
fixes github issue #303
fixes github issue #305
Fixes github issue #291
Throw std::bad_alloc instead of returning nullptr from ue2::AlignedAllocator. Allocators for STL containers are expected never to return with an invalid pointer, and instead must throw on failure. Violating this expectation can lead to invalid pointer dereferences. Co-authored-by: johanngan <[email protected]> fixes github issue #317 (PR #320)
fixes github issue #184
fix github issue intel#360
SIGTSKSZ is no long a constant after glibc 2.34 https://sourceware.org/pipermail/libc-alpha/2021-August/129718.html
Bugfix/hyperscan backport 202208
VSX optimizations
fix to enable successful build with mingw64
[NEON] simplify/optimize shift/align primitives
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Prepare for next release, many changes/fixes, namely: