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Type: Bug
Resolution: Fixed
Priority: P3
Fix Version/s: 18
Affects Version/s: 17, 18, 19
Component/s: hotspot
Labels:

Subcomponent:
compiler
Resolved In Build:
b30
CPU:

x86
OS:

generic

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8279813	19	Vladimir Kozlov	P3	Resolved	Fixed	b05
JDK-8279768	18.0.1	Vladimir Kozlov	P3	Resolved	Fixed	b02
JDK-8280776	17.0.4-oracle	Tobias Hartmann	P3	Resolved	Fixed	b01
JDK-8282822	17.0.4	Martin Doerr	P3	Resolved	Fixed	b01

Casting short vector to double vector requires us to promote the input to an int vector first. In AVX1, double vectors support vector shape of 256 bit while int vectors only support vector shape of 128 bit. The current implementation mistakenly uses the vector length of the destination for intermediate promotion. As a result, casting a Short64Vector to a Double256Vector leads to unsupported vpmovsxbd ymm, xmm instruction.

backported by

JDK-8279768 compiler/vectorapi/reshape/TestVectorCastAVX1.java crashes in assembler

Resolved

JDK-8279813 compiler/vectorapi/reshape/TestVectorCastAVX1.java crashes in assembler

Resolved

JDK-8280776 compiler/vectorapi/reshape/TestVectorCastAVX1.java crashes in assembler

Resolved

JDK-8282822 compiler/vectorapi/reshape/TestVectorCastAVX1.java crashes in assembler

Resolved

links to

Commit openjdk/jdk17u-dev/a15455fa

Commit openjdk/jdk18/f8f91480

Review openjdk/jdk17u-dev/203

Review openjdk/jdk18/46

(3 links to)

Assignee:: Quan Anh Mai

Reporter:: Quan Anh Mai

Votes:: 0 Vote for this issue

Watchers:: 6 Start watching this issue

Created:: 2021-12-16 21:17

Updated:: 2022-03-08 09:44

Resolved:: 2022-01-04 15:00

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