[Backport][LoongArch] Add the support for relax feature

[Ami-zhang]

Backport from llvm upstream 18 version. The corresponding merge link of the patch on GitHub is as follows:
[1]: [lld][LoongArch] Support the R_LARCH_{ADD,SUB}6 relocation type (#72190)
llvm/llvm-project#72190
[2]: [LoongArch] Add relax feature and keep relocations (#72191)
llvm/llvm-project#72191
[3]: [LoongArch] Allow delayed decision for ADD/SUB relocations (#72960)
llvm/llvm-project#72960
[4]: [LoongArch] Emit R_LARCH_RELAX when expanding some LoadAddress (#72961)
llvm/llvm-project#72961
[5]: [MC][LoongArch] Add AlignFragment size if layout is available and not need insert nops (#76552)
llvm/llvm-project#76552
[6]: [LoongArch][RISCV] Support R_LARCH_{ADD,SUB}ULEB128/R_RISCV{SET,SUB}ULEB128 for .uleb128 directives
llvm/llvm-project#76433
https://reviews.llvm.org/D157657
llvm/llvm-project@d7398a3
[7]: [LoongArch] Add relaxDwarfLineAddr and relaxDwarfCFA to handle the mutable label diff in dwarfinfo (#77728)
llvm/llvm-project#77728
[8]: [LoongArch] Insert nops and emit align reloc when handle alignment directive (#72962)
llvm/llvm-project#72962
[9]: [ELF][RISCV] Implement --emit-relocs with relaxation
https://reviews.llvm.org/D159082
[10]: [lld][ELF] Support relax R_LARCH_ALIGN (#78692)
llvm/llvm-project#78692
[11]: [test] Update dwarf-loongarch-relocs.ll
sailfishos-mirror/llvm-project@baba7e4
[12]: [lld][LoongArch] Support the R_LARCH{ADD,SUB}_ULEB128 relocation types (#81133)
llvm/llvm-project#81133
[13]: [MC][test] Change ELF/uleb-ehtable.s Mach-O to use private symbols in .uleb128 for label differences
llvm/llvm-project@0a89bda
[14]: [Mips][MC] AttemptToFoldSymbolOffsetDifference: revert isMicroMips special case
https://reviews.llvm.org/D157655

[deepin-ci-robot]

Hi @Ami-zhang. Thanks for your PR. 😃

[github-actions]

TAG Bot

TAG: 1%17.0.6-5deepin2
EXISTED: no
DISTRIBUTION: unstable

[deepin-ci-robot]

Hi @Ami-zhang. Thanks for your PR.

I'm waiting for a deepin-community member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please assign yukarichiba for approval. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• https:/raw.githubusercontent.com/deepin-community/template-repository/master/debian/deepin/OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[MingcongBai]

/integrate

[github-actions]

AutoIntegrationPr Bot
auto integrate with pr url: deepin-community/Repository-Integration#1915
PrNumber: 1915
PrBranch: auto-integration-10504471394

[Ami-zhang]

@SixWeining

[MingcongBai]

/integrate

[MingcongBai]

/integrate