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Type: Enhancement
Resolution: Fixed
Priority: P4
Fix Version/s: 14
Affects Version/s: 11, 14
Component/s: hotspot
Labels:

Subcomponent:
compiler
Resolved In Build:
b19

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8260305	13.0.7	Olga Mikhaltcova	P4	Resolved	Fixed	b01
JDK-8261052	13.0.6	Olga Mikhaltcova	P4	Resolved	Fixed	b01
JDK-8244062	11.0.9-oracle	Tom Rodriguez	P4	Resolved	Fixed	b01
JDK-8246233	11.0.9	Tom Rodriguez	P4	Resolved	Fixed	b01

The current HotSpot OopMapValue encoding uses 16 and steals 4 bits to represent 4 different flag values. The values are disjoint so they could be encoded by 2 bits, which quadruples the offset range for the encoding.

backported by

JDK-8244062 enlarge encoding space for OopMapValue offsets

Resolved

JDK-8246233 enlarge encoding space for OopMapValue offsets

Resolved

JDK-8260305 enlarge encoding space for OopMapValue offsets

Resolved

JDK-8261052 enlarge encoding space for OopMapValue offsets

Resolved

relates to

JDK-8232083 Minimal VM is broken after JDK-8231586

Resolved

JDK-8237949 CTW: C1 compilation fails with "too many stack slots used"

Resolved

JDK-8261236 C2: ClhsdbJstackXcompStress test fails when StressGCM is enabled

Resolved

links to

Commit openjdk/jdk13u-dev/40e05192

Review openjdk/jdk13u-dev/84

(2 relates to, 2 links to)

Assignee:: Tom Rodriguez

Reporter:: Tom Rodriguez

Votes:: 0 Vote for this issue

Watchers:: 6 Start watching this issue

Created:: 2019-09-27 11:26

Updated:: 2021-08-31 04:14

Resolved:: 2019-10-09 16:37

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