[AMDGPU,test] Change llc -march= to -mtriple=

Follow-up to 806761a7629df268c8aed49657aeccffa6bca449

[AMDGPU] Move GCNPreRAOptimizations after MachineScheduler (#116211)

This is in preparation for adding a new optimization to the pass that
cares about the order of instructions. The existing optimi

[AMDGPU] Move GCNPreRAOptimizations after MachineScheduler (#116211)

This is in preparation for adding a new optimization to the pass that
cares about the order of instructions. The existing optimization does
not care, so this just causes minor codegen differences.

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Reapply "[AMDGPU] Still set up the two SGPRs for queue ptr even it is COV5 (#112403)"

This reverts commit ca33649abe5fad93c57afef54e43ed9b3249cd86.

Revert "[AMDGPU] Still set up the two SGPRs for queue ptr even it is COV5 (#112403)"

This reverts commit e215a1e27d84adad2635a52393621eb4fa439dc9 as it broke both
hip and openmp buildbots.

[AMDGPU] Still set up the two SGPRs for queue ptr even it is COV5 (#112403)

[AMDGPU] Skip VGPR deallocation for waveslot limited kernels (#112765)

MSG_DEALLOC_VGPRS slows down very small waveslot limited kernels. It's
been identified this message is only really needed for

[AMDGPU] Skip VGPR deallocation for waveslot limited kernels (#112765)

MSG_DEALLOC_VGPRS slows down very small waveslot limited kernels. It's
been identified this message is only really needed for VGPR limited
kernels. A kernel becomes VGPR limited if a total number of VGPRs per
SIMD / number of used VGPRs is more than a number of wave slots.

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Reapply "AMDGPU: Move attributor into optimization pipeline (#83131)" and follow up commit "clang/AMDGPU: Defeat attribute optimization in attribute test" (#98851)

This reverts commit adaff46d087799

Reapply "AMDGPU: Move attributor into optimization pipeline (#83131)" and follow up commit "clang/AMDGPU: Defeat attribute optimization in attribute test" (#98851)

This reverts commit adaff46d087799072438dd744b038e6fd50a2d78.

Drop the -O3 checks from default-attributes.hip. I don't know why they
are different on some bots but reverting this is far too disruptive.

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Revert "AMDGPU: Move attributor into optimization pipeline (#83131)" and follow up commit "clang/AMDGPU: Defeat attribute optimization in attribute test" (#98851)

This reverts commits 677cc15e0ff2e0

Revert "AMDGPU: Move attributor into optimization pipeline (#83131)" and follow up commit "clang/AMDGPU: Defeat attribute optimization in attribute test" (#98851)

This reverts commits 677cc15e0ff2e0e6aa30538eb187990a6a8f53c0 and
78bc1b64a6dc3fb6191355a5e1b502be8b3668e7.

The test CodeGenHIP/default-attributes.hip is failing on multiple bots
even after the attempted fix including the following:
- https://lab.llvm.org/buildbot/#/builders/3/builds/1473
- https://lab.llvm.org/buildbot/#/builders/65/builds/1380
- https://lab.llvm.org/buildbot/#/builders/161/builds/595
- https://lab.llvm.org/buildbot/#/builders/154/builds/1372
- https://lab.llvm.org/buildbot/#/builders/133/builds/1547
- https://lab.llvm.org/buildbot/#/builders/81/builds/755
- https://lab.llvm.org/buildbot/#/builders/40/builds/570
- https://lab.llvm.org/buildbot/#/builders/13/builds/748
- https://lab.llvm.org/buildbot/#/builders/12/builds/1845
- https://lab.llvm.org/buildbot/#/builders/11/builds/1695
- https://lab.llvm.org/buildbot/#/builders/190/builds/1829
- https://lab.llvm.org/buildbot/#/builders/193/builds/962
- https://lab.llvm.org/buildbot/#/builders/23/builds/991
- https://lab.llvm.org/buildbot/#/builders/144/builds/2256
- https://lab.llvm.org/buildbot/#/builders/46/builds/1614

These bots have been broken for a day, so reverting to get everything
back to green.

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AMDGPU: Move attributor into optimization pipeline (#83131)

Removing it from the codegen pipeline induces a lot of test churn
because llc is no longer optimizing out implicit arguments to kernels.

AMDGPU: Move attributor into optimization pipeline (#83131)

Removing it from the codegen pipeline induces a lot of test churn
because llc is no longer optimizing out implicit arguments to kernels.

Mostly mechanical, but there are some creative test updates. I preferred
to take the changes as-is in tests where the ABI isn't relevant. In
cases where it's more relevant, or the optimize out logic was too
ingrained in the test, I pre-run the optimization. Some cases manually
add attributes to disable inputs.

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AMDGPU: Add mode register use to s_getreg_b32

This should fix reading the wrong mode after setting the mode.
Ideally we would have separate pseudos for the case that we know
does not read mode.

Reapply "AMDGPU: Implement llvm.set.rounding (#88587)" series (#91113)

Revert "Revert 4 last AMDGPU commits to unbreak Windows bots"

This reverts commit 0d493ed2c6e664849a979b357a606dcd8273b03f.

Reapply "AMDGPU: Implement llvm.set.rounding (#88587)" series (#91113)

Revert "Revert 4 last AMDGPU commits to unbreak Windows bots"

This reverts commit 0d493ed2c6e664849a979b357a606dcd8273b03f.

MSVC does not like constexpr on the definition after an extern
declaration of a global.

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AMDGPU: Use umin in set.rounding expansion

Addresses comment from #88587

AMDGPU: Optimize set_rounding if input is known to fit in 2 bits (#88588)

We don't need to figure out the weird extended rounding modes or
handle offsets to keep the lookup table in 64-bits.

AMDGPU: Optimize set_rounding if input is known to fit in 2 bits (#88588)

We don't need to figure out the weird extended rounding modes or
handle offsets to keep the lookup table in 64-bits.

https://reviews.llvm.org/D153258

Depends #88587

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AMDGPU: Implement llvm.set.rounding (#88587)

Use a shift of a magic constant and some offseting to convert from
flt_rounds values.

I don't know why the enum defines Dynamic = 7. The standard sug

AMDGPU: Implement llvm.set.rounding (#88587)

Use a shift of a magic constant and some offseting to convert from
flt_rounds values.

I don't know why the enum defines Dynamic = 7. The standard suggests -1
is the cannot determine value. If we could start the extended values at
4 we wouldn't need the extra compare sub and select.

https://reviews.llvm.org/D153257

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