Summary: Fix some integer overflows
Reviewed-by: jrose, kvn, kbarrett, adinn, iklam

Reviewed-by: neliasso, kvn

Reviewed-by: kvn

8172850: Anti-dependency on membar causes crash in register allocator due to invalid instruction scheduling
Summary: Regression test and additional asserts. The problem is fixed by 8087341.
Reviewed-by: kvn

8164480: Crash with assert(handler_address == SharedRuntime::compute_compiled_exc_handler(..) failed: Must be the same
Summary: Exception checking code needs to handle pre-allocated exceptions.
Reviewed-by: thartmann, kvn

Summary: Don't split if all edges will be moved to new phi
Reviewed-by: kvn

Summary: Fixed memory counting in compiler (C2)
Reviewed-by: adinn, cjplummer, kvn

Reviewed-by: kvn

Summary: CCP computes wrong type for CountedLoop iv Phi
Reviewed-by: kvn

Summary: Change TypeF:eq and TypeD:eq to compare NaN values using a bitwise comparison.
Reviewed-by: kvn
Contributed-by: NStefan Anzinger <stefan.anzinger@oracle.com>

Reviewed-by: kvn

Summary: Added required explicit NULL checks
Reviewed-by: thartmann, kvn

Summary: Fixed a missing null check on the return value of AddPNode::Ideal_base_and_offset() found by Parfait.
Reviewed-by: kvn

Summary: Fixed a missing null check on n->in(0) found by Parfait.
Reviewed-by: kvn

Summary: Fixed a missing null check on the return value of MachNodeGenerator() found by Parfait.
Reviewed-by: kvn

Summary: Fixed a missing null check on the return value of InitializeNode::allocation() found by Parfait.
Reviewed-by: zmajo

Reviewed-by: kvn, vlivanov, dlong, rhalade, mschoene, iignatyev

Reviewed-by: kvn, vlivanov, dlong, rhalade, mschoene, iignatyev

Summary: Check values returned by ciMethodData::bci_to_data() where necessary.
Reviewed-by: kvn

Summary: Require equal bases when unaliasing offsets for raw accesses
Reviewed-by: thartmann, kvn

Reviewed-by: kvn

Reviewed-by: kvn

Reviewed-by: kevinw, vlivanov

Reviewed-by: kevinw, vlivanov

Reviewed-by: kvn, thartmann

Reviewed-by: kvn, thartmann

Reviewed-by: kvn, thartmann

Summary: Mismatched stores on same slice possible with Unsafe.Put*Unaligned methods
Reviewed-by: kvn, thartmann

Summary: fixed the jvms for callsite traps based on declared signature.
Reviewed-by: jcm, coleenp, vlivanov

Summary: fixed the jvms for callsite traps based on declared signature.
Reviewed-by: jcm, coleenp, vlivanov

Summary: Corrected stubName to montgomery_multiply for inline_montgomeryMultiply()
Reviewed-by: aph, thartmann, zmajo

Summary: Store additional information in PhiNodes corresponding to known instance field values to avoid incorrect reusage.
Reviewed-by: kvn, thartmann

Summary: Store additional information in PhiNodes corresponding to known instance field values to avoid incorrect reusage.
Reviewed-by: kvn, thartmann

Summary: Store additional information in PhiNodes corresponding to known instance field values to avoid incorrect reusage.
Reviewed-by: kvn, thartmann

Reviewed-by: aph, goetz, mdoerr
Contributed-by: NGustavo Serra Scalet <gustavo.scalet@eldorado.org.br>

Reviewed-by: goetz

Reviewed-by: tschatzl, kvn
Contributed-by: NLeslie Zhai <lesliezhai-hotspot@llvm.org.cn>

Reviewed-by: vkempik, shshahma

Summary: fix Implicit Null Check optimization code.
Reviewed-by: roland, aph

Summary: don't convert loop with safepoint on the backedge to Counted loop
Reviewed-by: kvn