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8274325: C4819 warning at vm_version_x86.cpp on Windows after JDK-823… 
…4160

Reviewed-by: dholmes
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@DamonFool
DamonFool committed Sep 27, 2021
1 parent e3aff8f commit 7426fd4
Showing 1 changed file with 37 additions and 37 deletions.
74 changes: 37 additions & 37 deletions src/hotspot/cpu/x86/vm_version_x86.cpp
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Expand Up @@ -1766,58 +1766,58 @@ bool VM_Version::compute_has_intel_jcc_erratum() {
// https://www.intel.com/content/dam/support/us/en/documents/processors/mitigations-jump-conditional-code-erratum.pdf
switch (_model) {
case 0x8E:
// 06_8EH | 9 | 8th Generation Intel® Core™ Processor Family based on microarchitecture code name Amber Lake Y
// 06_8EH | 9 | 7th Generation Intel® Core™ Processor Family based on microarchitecture code name Kaby Lake U
// 06_8EH | 9 | 7th Generation Intel® Core™ Processor Family based on microarchitecture code name Kaby Lake U 23e
// 06_8EH | 9 | 7th Generation Intel® Core™ Processor Family based on microarchitecture code name Kaby Lake Y
// 06_8EH | A | 8th Generation Intel® Core™ Processor Family based on microarchitecture code name Coffee Lake U43e
// 06_8EH | B | 8th Generation Intel® Core™ Processors based on microarchitecture code name Whiskey Lake U
// 06_8EH | C | 8th Generation Intel® Core™ Processor Family based on microarchitecture code name Amber Lake Y
// 06_8EH | C | 10th Generation Intel® Core™ Processor Family based on microarchitecture code name Comet Lake U42
// 06_8EH | C | 8th Generation Intel® Core™ Processors based on microarchitecture code name Whiskey Lake U
// 06_8EH | 9 | 8th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Amber Lake Y
// 06_8EH | 9 | 7th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Kaby Lake U
// 06_8EH | 9 | 7th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Kaby Lake U 23e
// 06_8EH | 9 | 7th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Kaby Lake Y
// 06_8EH | A | 8th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Coffee Lake U43e
// 06_8EH | B | 8th Generation Intel(R) Core(TM) Processors based on microarchitecture code name Whiskey Lake U
// 06_8EH | C | 8th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Amber Lake Y
// 06_8EH | C | 10th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Comet Lake U42
// 06_8EH | C | 8th Generation Intel(R) Core(TM) Processors based on microarchitecture code name Whiskey Lake U
return _stepping == 0x9 || _stepping == 0xA || _stepping == 0xB || _stepping == 0xC;
case 0x4E:
// 06_4E | 3 | 6th Generation Intel® Core™ Processors based on microarchitecture code name Skylake U
// 06_4E | 3 | 6th Generation Intel® Core™ Processor Family based on microarchitecture code name Skylake U23e
// 06_4E | 3 | 6th Generation Intel® Core™ Processors based on microarchitecture code name Skylake Y
// 06_4E | 3 | 6th Generation Intel(R) Core(TM) Processors based on microarchitecture code name Skylake U
// 06_4E | 3 | 6th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Skylake U23e
// 06_4E | 3 | 6th Generation Intel(R) Core(TM) Processors based on microarchitecture code name Skylake Y
return _stepping == 0x3;
case 0x55:
// 06_55H | 4 | Intel® Xeon® Processor D Family based on microarchitecture code name Skylake D, Bakerville
// 06_55H | 4 | Intel® Xeon® Scalable Processors based on microarchitecture code name Skylake Server
// 06_55H | 4 | Intel® Xeon® Processor W Family based on microarchitecture code name Skylake W
// 06_55H | 4 | Intel® Core™ X-series Processors based on microarchitecture code name Skylake X
// 06_55H | 4 | Intel® Xeon® Processor E3 v5 Family based on microarchitecture code name Skylake Xeon E3
// 06_55 | 7 | 2nd Generation Intel® Xeon® Scalable Processors based on microarchitecture code name Cascade Lake (server)
// 06_55H | 4 | Intel(R) Xeon(R) Processor D Family based on microarchitecture code name Skylake D, Bakerville
// 06_55H | 4 | Intel(R) Xeon(R) Scalable Processors based on microarchitecture code name Skylake Server
// 06_55H | 4 | Intel(R) Xeon(R) Processor W Family based on microarchitecture code name Skylake W
// 06_55H | 4 | Intel(R) Core(TM) X-series Processors based on microarchitecture code name Skylake X
// 06_55H | 4 | Intel(R) Xeon(R) Processor E3 v5 Family based on microarchitecture code name Skylake Xeon E3
// 06_55 | 7 | 2nd Generation Intel(R) Xeon(R) Scalable Processors based on microarchitecture code name Cascade Lake (server)
return _stepping == 0x4 || _stepping == 0x7;
case 0x5E:
// 06_5E | 3 | 6th Generation Intel® Core™ Processor Family based on microarchitecture code name Skylake H
// 06_5E | 3 | 6th Generation Intel® Core™ Processor Family based on microarchitecture code name Skylake S
// 06_5E | 3 | 6th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Skylake H
// 06_5E | 3 | 6th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Skylake S
return _stepping == 0x3;
case 0x9E:
// 06_9EH | 9 | 8th Generation Intel® Core™ Processor Family based on microarchitecture code name Kaby Lake G
// 06_9EH | 9 | 7th Generation Intel® Core™ Processor Family based on microarchitecture code name Kaby Lake H
// 06_9EH | 9 | 7th Generation Intel® Core™ Processor Family based on microarchitecture code name Kaby Lake S
// 06_9EH | 9 | Intel® Core™ X-series Processors based on microarchitecture code name Kaby Lake X
// 06_9EH | 9 | Intel® Xeon® Processor E3 v6 Family Kaby Lake Xeon E3
// 06_9EH | A | 8th Generation Intel® Core™ Processor Family based on microarchitecture code name Coffee Lake H
// 06_9EH | A | 8th Generation Intel® Core™ Processor Family based on microarchitecture code name Coffee Lake S
// 06_9EH | A | 8th Generation Intel® Core™ Processor Family based on microarchitecture code name Coffee Lake S (6+2) x/KBP
// 06_9EH | A | Intel® Xeon® Processor E Family based on microarchitecture code name Coffee Lake S (6+2)
// 06_9EH | A | Intel® Xeon® Processor E Family based on microarchitecture code name Coffee Lake S (4+2)
// 06_9EH | B | 8th Generation Intel® Core™ Processor Family based on microarchitecture code name Coffee Lake S (4+2)
// 06_9EH | B | Intel® Celeron® Processor G Series based on microarchitecture code name Coffee Lake S (4+2)
// 06_9EH | D | 9th Generation Intel® Core™ Processor Family based on microarchitecturecode name Coffee Lake H (8+2)
// 06_9EH | D | 9th Generation Intel® Core™ Processor Family based on microarchitecture code name Coffee Lake S (8+2)
// 06_9EH | 9 | 8th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Kaby Lake G
// 06_9EH | 9 | 7th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Kaby Lake H
// 06_9EH | 9 | 7th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Kaby Lake S
// 06_9EH | 9 | Intel(R) Core(TM) X-series Processors based on microarchitecture code name Kaby Lake X
// 06_9EH | 9 | Intel(R) Xeon(R) Processor E3 v6 Family Kaby Lake Xeon E3
// 06_9EH | A | 8th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Coffee Lake H
// 06_9EH | A | 8th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Coffee Lake S
// 06_9EH | A | 8th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Coffee Lake S (6+2) x/KBP
// 06_9EH | A | Intel(R) Xeon(R) Processor E Family based on microarchitecture code name Coffee Lake S (6+2)
// 06_9EH | A | Intel(R) Xeon(R) Processor E Family based on microarchitecture code name Coffee Lake S (4+2)
// 06_9EH | B | 8th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Coffee Lake S (4+2)
// 06_9EH | B | Intel(R) Celeron(R) Processor G Series based on microarchitecture code name Coffee Lake S (4+2)
// 06_9EH | D | 9th Generation Intel(R) Core(TM) Processor Family based on microarchitecturecode name Coffee Lake H (8+2)
// 06_9EH | D | 9th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Coffee Lake S (8+2)
return _stepping == 0x9 || _stepping == 0xA || _stepping == 0xB || _stepping == 0xD;
case 0xA5:
// Not in Intel documentation.
// 06_A5H | | 10th Generation Intel® Core™ Processor Family based on microarchitecture code name Comet Lake S/H
// 06_A5H | | 10th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Comet Lake S/H
return true;
case 0xA6:
// 06_A6H | 0 | 10th Generation Intel® Core™ Processor Family based on microarchitecture code name Comet Lake U62
// 06_A6H | 0 | 10th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Comet Lake U62
return _stepping == 0x0;
case 0xAE:
// 06_AEH | A | 8th Generation Intel® Core™ Processor Family based on microarchitecture code name Kaby Lake Refresh U (4+2)
// 06_AEH | A | 8th Generation Intel(R) Core(TM) Processor Family based on microarchitecture code name Kaby Lake Refresh U (4+2)
return _stepping == 0xA;
default:
// If we are running on another intel machine not recognized in the table, we are okay.
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3 comments on commit 7426fd4

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Review

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@DamonFool
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/backport jdk17u

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@openjdk openjdk bot commented on 7426fd4 Oct 9, 2021

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@DamonFool @DamonFool the backport was successfully created on the branch DamonFool-backport-7426fd4c in my personal fork of openjdk/jdk17u. To create a pull request with this backport targeting openjdk/jdk17u:master, just click the following link:

➡️ Create pull request

The title of the pull request is automatically filled in correctly and below you find a suggestion for the pull request body:

Hi all,

this pull request contains a backport of commit 7426fd4c from the openjdk/jdk repository.

The commit being backported was authored by Jie Fu on 27 Sep 2021 and was reviewed by David Holmes.

Thanks!

If you need to update the source branch of the pull then run the following commands in a local clone of your personal fork of openjdk/jdk17u:

$ git fetch https://github.com/openjdk-bots/jdk17u DamonFool-backport-7426fd4c:DamonFool-backport-7426fd4c
$ git checkout DamonFool-backport-7426fd4c
# make changes
$ git add paths/to/changed/files
$ git commit --message 'Describe additional changes made'
$ git push https://github.com/openjdk-bots/jdk17u DamonFool-backport-7426fd4c

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