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rebase

Created using spr 1.3.7

[𝘀𝗽𝗿] changes introduced through rebase

Created using spr 1.3.7

[skip ci]

[X86] Generate assertions with update_llc_test_checks

A follow-up PR will modify some lines in 2011-09-14-valcoalesce.ll and
adding assertions to 2009-11-17-UpdateTerminator.ll essentially serves
as precommitting tests for #202763.

Reviewers: RKSimon, arsenm, phoebewang

Pull Request: https://github.com/llvm/llvm-project/pull/203109

[cross-project-tests] Fix some tests with the internal shell (#203169)

We need to prepend any environment variables that get set with env.

[cross-project-tests] Use lit internal shell (#203138)

[GitHub] React to /test-suite comment (#203151)

So the user knows the workflow has kicked off. I've put it in a separate
job with write permissions so the main job should still only have a read
only token.

workflows/subscriber: Use github-automation container (#202777)

This simplifies the workflow and might help it run faster too.

Reapply "[NVPTX] Support lowering of `(l)lround`" (#202876)

Reverts llvm/llvm-project#202500

Original PR llvm/llvm-project#183901 was mistakenly reverted due to an
unrelated build failure.

[MLIR] Use internal shell for standalone tests (#203134)

The external shell will be removed soon

(https://discourse.llvm.org/t/rfc-removal-of-the-lit-external-shell/90951),
and this is one of the places where it hasn't been enabled by default.
There are no test failures caused by this, so we can just turn it on by
not explicitly setting execute_external as it defaults to False.

[AMDGPU] Set success flag for weak cmpxchg in LowerBufferFatPointers (#203033)

[AMDGPU] Gate rootn(x, +-2) -> sqrt/rsqrt fold on nsz/ninf (#200578)

Revert "[Compiler-rt][test] Fix circular link dependency between builtins and libc" (#203152)

Reverts llvm/llvm-project#199482 due to failures when it's used on
platforms with non-ELF linkers. The patch needs additional guards, but
it's not immediately clear which platform linkers support the required
options.

Revert "[Compiler-rt][test] Fix circular link dependency between builtins and…"

This reverts commit 8b4902300521d4a0980d9d35210c02b405f0df86.

AMDGPU: Remove AMDGPUbfm (#203148)

It wasn't actually used. We select [SV]_BFM_B32 by directly matching
shift-based patterns.

[Demangle] Fix leak of temporary TypeBuf buffer in DLangDemangle (#203116)

Detected by sanitizer
https://lab.llvm.org/buildbot/#/builders/55/builds/28902 after merge.

[AMDGPU] Handle gfx1251 wmma hazard

Generic target affected too in a pessimistic way.

[AMDGPU] Intrinsic and codegen for wmma_f64_16x16x4_f64

[AMDGPU] Builtin support for wmma_f64_16x16x4_f64

[AMDGPU] Add gfx1251 speed model

Adjust generic speed model to account for a slowest.

[AMDGPU] MC support for v_wmma_f64_16x16x4_f64

[CodeGen] Support --print-changed for legacy codegen IR passes (#202252)

--print-changed is only wired into MachineFunctionPass (
https://reviews.llvm.org/D133055), so the IR-level passes in the codegen
pipeline (atomic-expand, codegenprepare, etc.) are not reported.

Report them from FPPassManager/MPPassManager instead, via a new
Pass::printIRUnit hook that MachineFunctionPass overrides to print MIR.
Analyses are skipped, matching the new pass manager.

Aided by Claude Opus 4.8

[AMDGPU] Handle gfx1251 wmma hazard

Generic target affected too in a pessimistic way.

[AMDGPU] Handle gfx1251 wmma hazard

Generic target affected too in a pessimistic way.

[AMDGPU] Builtin support for wmma_f64_16x16x4_f64

[AMDGPU] Add gfx1251 speed model

Adjust generic speed model to account for a slowest.

[AMDGPU] Intrinsic and codegen for wmma_f64_16x16x4_f64

[AMDGPU] MC support for v_wmma_f64_16x16x4_f64

AMDGPU: Remove AMDGPUbfm

It wasn't actually used. We select [SV]_BFM_B32 by directly matching
shift-based patterns.

commit-id:b5cd6327

[SLP][NFC] Add tests with non-movable calls, NFC



Reviewers: 

Pull Request: https://github.com/llvm/llvm-project/pull/203140

Revert "[GlobalISel] Add `or_and_xor_to_or` pattern from SelectionDAG" (#203136)

Reverts llvm/llvm-project#201108