Request for reviews (M): 6723160: Nightly failure: Error: meet not symmetric
Vladimir.Kozlov at Sun.COM
Wed Jul 16 09:40:15 PDT 2008
Fixed 6723160: Nightly failure: Error: meet not symmetric
Missing settings of _instance_id value to InstanceBot in
TypeInstPtr::xmeet() and TypeAryPtr::xmeet().
Add missing _instance_id settings.
Replaced klass exactness settings for types with instance_id
with asserts. Add explicit casts to klass exactness and ptr type
where we do instance_id casting.
Mark DecodeN and EncodeP nodes as expensive to avoid their
Change CallNode::may_modify() to always return false for types
with instance_id since scalar-replaceable allocations are not
passed as arguments (otherwise they will be not scalar-replaceable).
In flatten_alias_type() preserve klass exactness and non-nullness
for types with instance_id, both arrays and instances.
Flatten only array's elements access to have only one alias type.
Set instance_id to InstanceBot (default value) for regular types.
Update inputs of original memory phis in EA split_unique_types()
to avoid intermixing unique instances and general memory operations.
Otherwise we got the assert in SuperWord::mem_slice_preds().
Add more complex search of scalar-replaceable object's fields
values through phis during the allocation elimination.
Added the regression tests for 6724218 since the bug
was fixed in HS14 as part of 6714694 fix.
Fix verified (y/n): y, generated code
JPRT, NSK (32-,64-bits, COOP), CTW (32-,64-bits, COOP)
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