Merge

Merge

6888336: G1: avoid explicitly marking and pushing objects in survivor spaces Summary: This change simplifies the interaction between GC and concurrent marking. By disabling survivor spaces during the initial-mark pause we don't need to propagate marks of objects we copy during each GC (since we never need to copy an explicitly marked object). Reviewed-by: johnc, brutisso

7128532: G1: Change default value of G1DefaultMaxNewGenPercent to 80 Reviewed-by: tonyp, jmasa

7125281: G1: heap expansion code is replicated Reviewed-by: brutisso, johnc

7121623: G1: always be able to reliably calculate the length of a forwarded chunked array Summary: Store the "next chunk start index" in the length field of the to-space object, instead of the from-space object, so that we can always reliably read the size of all from-space objects. Reviewed-by: johnc, ysr, jmasa

7121496: G1: do the per-region evacuation failure handling work in parallel Summary: Parallelize the removal of self forwarding pointers etc. by wrapping in a HeapRegion closure, which is then wrapped inside an AbstractGangTask. Reviewed-by: tonyp, iveresov

Merge

7113006: G1: excessive ergo output when an evac failure happens Summary: Introduce a flag that is set when a heap expansion attempt during a GC fails so that we do not consantly attempt to expand the heap when it's going to fail anyway. This not only prevents the excessive ergo output (which is generated when a region allocation fails) but also avoids excessive and ultimately unsuccessful expansion attempts. Reviewed-by: jmasa, johnc

Merge

7064302: JDK7 build 147 crashed after testing my java 6-compiled web app Summary: Don't split CMove node if it's control edge is different from split region. Reviewed-by: never

7128352: assert(obj_node == obj) failed Summary: Compare uncasted object nodes. Reviewed-by: never

7125896: Eliminate nested locks Summary: Nested locks elimination done before lock nodes expansion by looking for outer locks of the same object. Reviewed-by: never, twisti

7110824: ctw/jarfiles/GUI3rdParty_jar/ob_mask_DateField crashes VM Summary: Change yank_if_dead() to recursive method to remove all dead inputs. Reviewed-by: never

Merge

Merge

7120511: Add diagnostic commands Reviewed-by: acorn, phh, dcubed, sspitsyn

7129240: backout fix for 7102776 until 7128770 is resolved Reviewed-by: phh, bobv, coleenp, dcubed Contributed-by: Jiangli Zhou <jiangli.zhou@oracle.com>

Merge

7119294: Two command line options cause JVM to crash Summary: Setup thread register in MacroAssembler::incr_allocated_bytes() on x64 Reviewed-by: kvn

7125879: assert(proj != NULL) failed: must be found Summary: Leave i_o attached to slow allocation call when there are no i_o users after the call. Reviewed-by: iveresov, twisti

Merge

7123954: Some CTW test crash with SIGSEGV Summary: Correct Allocate expansion code to preserve i_o when only slow call is generated. Reviewed-by: iveresov

7110832: ctw/.../org_apache_avalon_composition_util_StringHelper crashes the VM Summary: Distance is too large for one short branch in string_indexofC8(). Reviewed-by: iveresov

7123253: C1: in store check code, usage of registers may be incorrect Summary: fix usage of input register in assembly code for store check. Reviewed-by: never

7123108: C1: assert(if_state != NULL) failed: states do not match up Summary: In CEE, ensure if and common successor state are at the same inline level Reviewed-by: never

7121140: Allocation paths require explicit memory synchronization operations for RMO systems Summary: adds store store barrier after initialization of header and body of objects. Reviewed-by: never, kvn

7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions Summary: Moved sizeof(klassOopDesc), changed the return type to ByteSize and removed the _in_bytes suffix. Reviewed-by: never, bdelsart, coleenp, jrose

7121648: Use 3-operands SIMD instructions on x86 with AVX Summary: Use 3-operands SIMD instructions in C2 generated code for machines with AVX. Reviewed-by: never

7121073: secondary_super_cache memory slice has incorrect bounds in flatten_alias_type Reviewed-by: kvn

7116452: Add support for AVX instructions Summary: Added support for AVX extension to the x86 instruction set. Reviewed-by: never

7121111: -server -Xcomp -XX:+TieredCompilation does not invoke C2 compiler Summary: Exercise C2 more in tiered mode with Xcomp Reviewed-by: kvn, never