8259044： JVM lacks data type qualifier when using -XX:+PrintAssembly with AArch64-Neon backend

[Wanghuang-Huawei]

For instace: in the implentation of VectorMaskCmp & VectorStoreMask :

$jtreg -vmoptions:"-XX:+PrintAssembly" ./Int128VectorTests.java

before fixing

0dc ldrq V17,[R10, #16] # vector (128 bits)
0e0 cmeq V16, V16, V17 # vector cmp (4I)
0e4 xtn V16, V16 # 4S to 4H
xtn V16, V16 # 4H to 4B
negr V16, V16 # store mask (4S to 4B)

Here， the output lacks data type qualifiers like T4S in cmeq V16, V16, V17.

Expect:

0dc ldrq V16,[R10, #16] # vector (128 bits)
0e0 cmeq V16, T4S, V16, V18 # vector cmp (4I)
0e4 xtn V16, T4H, V16, T4S # 4S to 4H
xtn V16, T8B, V16, T8H # 4H to 4B
negr V16, T8B, V16 # store mask (4S to 4B)

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed

Issue

• JDK-8259044: JVM lacks data type qualifier when using -XX:+PrintAssembly with AArch64-Neon backend

Contributors

• He Xuejin <hexuejin2@huawei.com>

Download

$ git fetch https://git.openjdk.java.net/jdk16 pull/77/head:pull/77
$ git checkout pull/77

[bridgekeeper]

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[openjdk]

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[mlbridge]

Webrevs

• 00: Full (88e329b)

[Wanghuang-Huawei]

/contributor add He Xuejin hexuejin2@huawei.com

[openjdk]

@Wanghuang-Huawei
Contributor He Xuejin <hexuejin2@huawei.com> successfully added.

[nsjian]

This looks good to me. But should this P4 enhancement go to https://github.com/openjdk/jdk instead of here?

[Wanghuang-Huawei]

This looks good to me. But should this P4 enhancement go to https://github.com/openjdk/jdk instead of here?

OK. I will post a PR against jdk/jdk ASAP.

[Wanghuang-Huawei]

I have posted a new PR against jdk/jdk: openjdk/jdk#1941

please close this PR. Thank you. @nsjian