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Type: Bug
Resolution: Fixed
Priority: P1
Fix Version/s: 9
Affects Version/s: 9
Component/s: hotspot
Labels:

Subcomponent:
compiler
Resolved In Build:
b178
CPU:

x86
OS:

generic
Verification:
Verified

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8185415	10	Vladimir Kozlov	P1	Resolved	Fixed	b18
JDK-8188975	9.0.6	Vladimir Kozlov	P1	Resolved	Fixed	team
JDK-8188285	9.0.4	Vladimir Kozlov	P1	Resolved	Fixed	b01
JDK-8185521	9.0.1	Vladimir Kozlov	P1	Resolved	Fixed	b04

~~JDK-8183103~~ was fixed by making PostLoopMultiversioning flag off by default and experimental. It was enough for workaround the problem until it is fixed ~~JDK-8183390~~.

But we have also concern about AVX3 stability because of insufficient testing on new Intel's hardware. We switched AVX3 off by default and made it experimental too.

After discussions we agreed that making -XX:UseAVX=3 experimental was mistake. We should restore it to product value again.

backported by

JDK-8185415 Restore -XX:UseAVX=3 as product value

Resolved

JDK-8185521 Restore -XX:UseAVX=3 as product value

Resolved

JDK-8188285 Restore -XX:UseAVX=3 as product value

Resolved

JDK-8188975 Restore -XX:UseAVX=3 as product value

Resolved

relates to

JDK-8185802 Enable AVX3 by default

Resolved

JDK-8183103 Post loop vectorization produces incorrect results

Closed

(1 relates to)

There are no Sub-Tasks for this issue.

Assignee:: Vladimir Kozlov

Reporter:: Vladimir Kozlov

Votes:: 0 Vote for this issue

Watchers:: 10 Start watching this issue

Created:: 2017-07-07 16:53

Updated:: 2017-11-02 00:48

Resolved:: 2017-07-10 15:46

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