6667610: (Escape Analysis) retry compilation without EA if it fails Summary: During split unique types EA could exceed nodes limit and fail the method compilation. Reviewed-by: rasbold

6671250: In Parse::do_if() old Cmp node 'c' should be replaced with new one after BoolNode transformation Summary: In Parse::do_if() 'c' (CmpNode) node may be changed during BoolNode transformation so 'c' may became dead but the node is referenced later in the code. Reviewed-by: never

6667618: disable LoadL->ConvL2I ==> LoadI optimization Summary: this optimization causes problems (sizes of Load and Store nodes do not match) for objects initialization code and Escape Analysis Reviewed-by: jrose, never

6667588: Don't generate duplicated CMP for float/double values Summary: float CMove generation add duplicated CMPF if there are more then one Move depending on the condition. Reviewed-by: jrose, never, rasbold

6667581: Don't generate initialization (by 0) code for arrays with size 0 Summary: generate_arraycopy() does not check the size of allocated array. Reviewed-by: jrose, never

6667580: Optimize CmpP for allocations Summary: CmpP could be optimized out if it compares new allocated objects. Reviewed-by: jrose, never, rasbold

6667573: Use set_req_X() in AddPNode::Ideal() for Iterative GVN Summary: set_req_X() puts dependent nodes on IGVN worklist which allows to improve graph and gives more opportunities for EA scalar replacement. Reviewed-by: jrose, never

6590177: jck60019 test assert(!repeated,"do not walk merges twice") Summary: A mergemem node could be not in worklist_store but in should_not_repeat vectorset since it was processed and removed from worklist_store before. Reviewed-by: jrose, never