Reviewed-by: kvn, iignatyev

Summary: -XX:+TraceDeoptimization tries to print realloc'ed objects even when there are none
Reviewed-by: kvn

Summary: OOM during reallocation of scalar replaced objects in deoptimization causes crashes
Reviewed-by: kvn, jrose

Summary: make compiled code bang the stack by the worst case size of the interpreter frame at deoptimization points.
Reviewed-by: twisti, kvn

Summary: enable type speculation
Reviewed-by: kvn

8036092: [TESTBUG] compiler/uncommontrap/TestSpecTrapClassUnloading.java fails with: Unrecognized VM option 'UseTypeSpeculation'
Summary: Add -XX:+IgnoreUnrecognizedVMOptions to @main/othervm to make the test pass on Client VM
Reviewed-by: kvn, roland

Summary: biased locking's revoke_bias locks monitor in compiled frame with eliminated lock
Reviewed-by: kvn, iveresov

8031752: Failed speculative optimizations should be reattempted when root of compilation is different
Summary: support for speculative traps that keep track of the root of the compilation in which a trap occurs.
Reviewed-by: kvn, twisti

Summary: May end up in uncommon trap blob/deopt blob with unguarded stack
Reviewed-by: kvn, twisti

Summary: rbp not restored when stack overflow is thrown from deopt/uncommon trap blobs
Reviewed-by: kvn, iveresov

Summary: Uncommon trap blob did not bang all the stack shadow pages
Reviewed-by: kvn, twisti, iveresov, jrose