Reviewed-by: hseigel, lfoltan, coleenp, ahgross

Summary: The new code in 8u backport should guard the execution of the following code instead of return.
Reviewed-by: iveresov

Summary: Check for safepoint and block during EA Connection graph construction.
Reviewed-by: roland, vlivanov, shade

Reviewed-by: dholmes

Summary: Don't remove KILL projections if their "defining" nodes have SCMemProj projection (memory side effects).
Reviewed-by: iveresov, roland

Reviewed-by: kvn, rbackman, anoll, vlivanov, iignatyev
Contributed-by: tatiana.pivovarova@oracle.com

Reviewed-by: hseigel, ccheung

Reviewed-by: jrose, acorn, vlivanov

Reviewed-by: jcoomes

Reviewed-by: jrose, acorn, vlivanov

Summary: code in PhaseIterGVN::add_users_to_worklist() from 8054478 makes incorrect assumption about graph shape
Reviewed-by: iveresov

Summary: dead backbranch in main loop results in erroneous array access
Reviewed-by: kvn, iveresov

Reviewed-by: jcoomes

Summary: Open compilation log files in write-mode and close before deletion attempt.
Reviewed-by: vlivanov