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Type: Story
Resolution: Done
Priority: Undefined
Fix Version/s: rhel-10.0.beta
Affects Version/s: rhel-10.0.beta
Component/s: gcc
Labels:
None

Fixed in Build:
gcc-14.1.1-1.el10
Severity:
None
sprint_count:
1

AssignedTeam:
rhel-pt-gcc
Sub-System Group:

ssg_platform_tools

Internal Target Milestone:
13
Story Points:
1
Target Version:

rhel-10.0
Blocked:
False
Ready:
False
Blocked Reason:

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None

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None
Product Documentation Required:
Yes
Sprint:
GCC Sprint 4

Preliminary Testing:
Pass
Errata Link:
https://errata.engineering.redhat.com/advisory/130534
Test Coverage:
None

Release Note Type:
Enhancement
Release Note Text:

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.GCC 14 defaults to x86-64-v3

GCC 14 in RHEL 10 defaults to the x86-64-v3 microarchitecture level. This level enables certain capabilities by default, such as the AVX and AVX2 instruction sets and the fused multiply-add (FMA) instruction set. See the related link:https://developers.redhat.com/articles/2024/01/02/exploring-x86-64-v3-red-hat-enterprise-linux-10[article] for more details.

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.GCC 14 defaults to x86-64-v3 GCC 14 in RHEL 10 defaults to the x86-64-v3 microarchitecture level. This level enables certain capabilities by default, such as the AVX and AVX2 instruction sets and the fused multiply-add (FMA) instruction set. See the related link: https://developers.redhat.com/articles/2024/01/02/exploring-x86-64-v3-red-hat-enterprise-linux-10 [article] for more details.
Release Note Status:
Done

Experience:

SFDC Cases Counter:
SFDC Cases Open:
SFDC Cases Links:

Planning:
None

Use --with-arch_64=x86-64-v3 for RHEL 10.

See https://developers.redhat.com/articles/2024/01/02/exploring-x86-64-v3-red-hat-enterprise-linux-10#

is duplicated by

RHEL-35892 [RHEL-10] [x86_64] GCC - what should be the default setting for -march ?

Closed

is related to

RHEL-22737 Provide a way to change defaults of gcc, g++, gfortran in /usr/bin [rhel-10.1]

Planning

split to

RHEL-39520 [QE]Change GCC default to x86-64-v3

Closed

links to

RHEA-2024:130534 gcc bug fix and enhancement update

Assignee:: Marek Polacek

Reporter:: Marek Polacek

Developer:: Marek Polacek

QA Contact:: Vaclav Kadlcik

Doc Contact:: Tomas Capek

Votes:: 0 Vote for this issue

Watchers:: 14 Start watching this issue

Created:: 2024/04/17 7:06 PM

Updated:: 2025/03/07 5:15 PM

Resolved:: 2024/12/19 2:32 PM

Target end:: 2024/05/31

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