8155917: Memory access in free regions during G1 full gc causes regressions in SPECjvm2008 scimark.fft,lu,sor,sparse with 9+116 on Linux-x64 Summary: Do not unnecessarily touch the memory of free regions during the compaction phase in G1 full gc causing some OSes to allocate physical memory for them, decreasing performance in some situations. Reviewed-by: mgerdin, jmasa

8158854: Ensure release_store is paired with load_acquire in lock-free code Reviewed-by: shade, dcubed, zgu

8164660: MinimalVM is not tested with GC tests Reviewed-by: jmasa, tschatzl

8150823: UL disables log outputs incorrectly Reviewed-by: rehn, sla

8150894: Unused -Xlog tag sequences are silently ignored. Reviewed-by: rehn, sla

Merge

8158639: C2 compilation fails with SIGSEGV Summary: fixed the jvms for callsite traps based on declared signature. Reviewed-by: kvn, vlivanov, dlong

8155635: C2: Mixed unsafe accesses break alias analysis Reviewed-by: jrose, kvn

8162101: C2: Handle "wide" aliases for unsafe accesses Reviewed-by: kvn

Merge

8164358: [JVMCI] expose Hotspot intrinsics and HotSpotIntrinsicCandidate info to JVMCI Reviewed-by: twisti, kvn, never

8151988: Hotspot deoptimizes div/mod pair usage Summary: don't remove control edge of Mod node until DivMod node matching Reviewed-by: kvn

Merge

8164648: [TESTBUG] jittester failed compilation after 8157957 Reviewed-by: vlivanov