This is our third tagged release, and it comes with tons of fixes, and performance improvements.

Compatibility

• Support for unaligned atomic memory ops
• Thread local mman cache invalidation
• glib 2.32 support (cpuid fixes, faccessat2)
• cmpxchg flag fixes
• fixed cvtt* ops to actually truncate, both for x87 and sse
• Implemented BTC, BTR and BTS atomic variants
• Workaround crashes around exit_group for graceful exit
• Fixed SAR8 & SAR16 sign extension
• Added support for x87 rounding modes
• Added support for x87 precision modes
• Temporary fix for x87’s frem
• Fixed select system calls to update the descriptors
• Fixed handling of invalid ops when multiblock is enabled
• Fixed an edge case bug in CreateElementPair
• Fixed BRK handling
• Fixed /proc/cpuinfo topology
• Fixed compilation of superblocks with more than 256 spills
• Fixed a bug in in the MUL -> SHL optimization

Performance

• Added ir-cache that halves loading times when enabled (–aotir-capture && –aotir-load)
• x87 ops no longer force interpreter for the entire superblock

Usability

• uname now returns the host uname
• Added checks for python in the CMake files

Misc

• ThunkLibs now generate asm wrappers, so they can be compiled with older GCCs
• Asserts on unsupported atomic ops
• Removed erratic asserts in RA

The detailed change log is available on Github