8010437: guarantee(this->is8bit(imm8)) failed: Short forward jump exceeds 8-bit offset Summary: Fix shorten_branches() to accurately count an initial nop that may be inserted in a block that starts with a safepoint. Reviewed-by: kvn

8011102: Clear AVX registers after return from JNI call Summary: Execute vzeroupper instruction after JNI call and on exits in jit compiled code which use 256bit vectors. Reviewed-by: roland

7034299: Faulty winsock initialization code Reviewed-by: dholmes, sla, ctornqvi

8011009: Use do-while(0) instead of while(0) in EC_TRACE and RC_TRACE* macros Summary: Improve EC_TRACE and RC_TRACE* to use the do-while(0) trick for statement-like macro Reviewed-by: sspitsyn, dcubed

Merge

8010934: assert failure in c1_LinearScan.cpp: "asumption: non-Constant instructions have only virtual operands" Summary: incorrect code to skip some ArrayLength instructions in LIRGenerator Reviewed-by: kvn

8004640: C2 assert failure in memnode.cpp: NULL+offs not RAW address Summary: always transform AddP nodes in IdealKit by calling _gvn.transform(). Reviewed-by: roland, twisti

8010281: Remove code that is never executed Reviewed-by: kvn, roland Contributed-by: niclas.adlertz@oracle.com

7198429: need checked categorization of caller-sensitive methods in the JDK Reviewed-by: kvn, jrose

Merge

8009026: [parfait] Null pointer deference in hotspot/src/share/vm/code/nmethod.cpp Summary: add guarantee() to nmethod constructor and checks to ensure CodeCache has space before allocation Reviewed-by: kvn

Merge