7042153: guarantee(x_compare_res != Constant::not_comparable) failed: incomparable constants in IfOp
Summary: Handle IfOps folding properly in case of unloaded constant oop arguments
Reviewed-by: kvn, never

Summary: Separate limit by Opaque2 node when calculating new limit for unrolled loop.
Reviewed-by: never

Summary: The test should compare with -0.0f.
Reviewed-by: never, iveresov

Reviewed-by: kvn, iveresov

Summary: Fix integer overflow problem in the code generated by loop optimizer.
Reviewed-by: never

Reviewed-by: iveresov, kvn, never

Reviewed-by: kvn, iveresov

Reviewed-by: dcubed

Reviewed-by: iveresov, twisti

Summary: Remove control from loads in String.equals intrinsic and cast argument to not-null.
Reviewed-by: never

Reviewed-by: kvn, twisti

Reviewed-by: kvn, never

Summary: Update the HS21 build number to 11
Reviewed-by: jcoomes

Summary: Use unrolled_count() to limit unrolling and use the stride check only for initial stride value.
Reviewed-by: never

Reviewed-by: kvn

Reviewed-by: iveresov, kvn

Summary: Avoid blocking in CompileBroker::compile_method_base() if the current thread holds the pending list lock.
Reviewed-by: never, brutisso, ysr

Summary: In G1 heap verification, we no longer scan perm to G1-collected heap refs as part of process_strong_roots() but rather in a separate explicit oop iteration over the perm gen. This preserves the original perm card-marks. Added a new assertion in younger_refs_iterate() to catch a simple subcase where the user may have forgotten a prior save_marks() call, as happened in the case of G1's attempt to iterate perm to G1 refs when verifying the heap before exit. The assert was deliberately weakened for ParNew+CMS and will be fixed for that combination in a future CR. Also made some (non-G1) cleanups related to code and comments obsoleted by the migration of Symbols to the native heap.
Reviewed-by: iveresov, jmasa, tonyp

Reviewed-by: mduigou

Summary: A predicate should not be moved in partial peel optimization since it will invalidate jvm state of its uncommon trap.
Reviewed-by: never

Summary: Make the NUMA allocator behave properly with SHM and ISM large pages.
Reviewed-by: ysr

Summary: Handle stack overflow before the first frame is called, by printing out the called method and not walking the stack.
Reviewed-by: dholmes, phh, dsamersoff

Reviewed-by: twisti

Reviewed-by: stefank

Summary: Update the HS21 build number to 10
Reviewed-by: jcoomes