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Type: Enhancement
Resolution: Fixed
Priority: P3
Fix Version/s: hs25
Affects Version/s: hs25
Component/s: hotspot
Labels:
- noreg-hard

Subcomponent:
compiler
Resolved In Build:
b56

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8027507	8	Roland Westrelin	P3	Resolved	Fixed	b114

We drop some profiling data because it's of no immediate use. Rather than dropping it, we should register it with the type system and let it flow in the graph. At points where the static type or the local profiling doesn't help, we could then query the type system for speculative type data and if there's some emit a guard so it becomes the current type.

backported by

JDK-8027507 C2 needs some form of type speculation

Resolved

relates to

JDK-8027571 fatal error: meet not symmetric

Resolved

JDK-8027632 assert(xtype->klass_is_exact()) failed: Should be exact at graphKit.cpp

Resolved

JDK-8028536 Test cases to cover type system fixes pushed with 8024070

Resolved

JDK-8162384 Performance regression: bimorphic inlining may be bypassed by type speculation

Resolved

JDK-8321204 C2: assert(false) failed: node should be in igvn hash table

Resolved

(1 relates to)

Assignee:: Roland Westrelin
Reporter:: Roland Westrelin
Votes:: 0 Vote for this issue
Watchers:: 2 Start watching this issue

Created:: 2013-08-30 09:55
Updated:: 2024-04-05 00:28
Resolved:: 2013-10-23 08:43

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