[SandboxIR][Pass] Implement Analyses class (#113962)

The Analyses class provides a way to pass around commonly used Analyses
to SandboxIR passes throught `runOnFunction()` and `runOnRegion()`
func

[SandboxIR][Pass] Implement Analyses class (#113962)

The Analyses class provides a way to pass around commonly used Analyses
to SandboxIR passes throught `runOnFunction()` and `runOnRegion()`
functions.

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[SandboxVec] Re-land "Use sbvec-passes flag to create a pipeline of Region passes after BottomUpVec. (#111223)" (#111772)

https://github.com/llvm/llvm-project/pull/111223 was reverted because of
a

[SandboxVec] Re-land "Use sbvec-passes flag to create a pipeline of Region passes after BottomUpVec. (#111223)" (#111772)

https://github.com/llvm/llvm-project/pull/111223 was reverted because of
a build failure with `-DBUILD_SHARED_LIBS=on`.

The Passes component depends on Vectorizer (because PassBuilder needs to
be able to instantiate SandboxVectorizerPass). This resulted in CMake
doing this

1. when it builds lib/libLLVMVectorize.so.20.0git it adds
lib/libLLVMSandboxIR.so.20.0git to the command line, because it's listed
as a dependency (as expected)
2. when it's trying to build lib/libLLVMPasses.so.20.0git it adds
lib/libLLVMVectorize.so.20.0git to the command line, because it's listed
as a dependency (also as expected). But not libLLVMSandboxIR.so.

When SandboxVectorizerPass has its ctors/dtors defined inline, this
caused "undefined reference to vtable" linker errors. This change works
around that by moving ctors/dtors out of line.

Also fix a bazel build problem by adding the new
`llvm/lib/Transforms/Vectorize/SandboxVectorizer/Passes/PassRegistry.def`
as a textual header in the Vectorizer target.

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Revert "[SandboxVectorizer] Use sbvec-passes flag to create a pipeline of Region passes after BottomUpVec." (#111727)

Reverts llvm/llvm-project#111223

It broke one of the build bots:

LLVM Buil

Revert "[SandboxVectorizer] Use sbvec-passes flag to create a pipeline of Region passes after BottomUpVec." (#111727)

Reverts llvm/llvm-project#111223

It broke one of the build bots:

LLVM Buildbot has detected a new failure on builder flang-aarch64-libcxx
running on linaro-flang-aarch64-libcxx while building llvm at step 5
"build-unified-tree".

Full details are available at:
https://lab.llvm.org/buildbot/#/builders/89/builds/8127

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[SandboxVectorizer] Use sbvec-passes flag to create a pipeline of Region passes after BottomUpVec. (#111223)

The main change is that the main SandboxVectorizer pass no longer has a
pipeline of func

[SandboxVectorizer] Use sbvec-passes flag to create a pipeline of Region passes after BottomUpVec. (#111223)

The main change is that the main SandboxVectorizer pass no longer has a
pipeline of function passes. Now it is a wrapper that creates sandbox IR
from functions before calling BottomUpVec.

BottomUpVec now builds its own RegionPassManager from the `sbvec-passes`
flag, using a PassRegistry.def file. For now, these region passes are
not run (BottomUpVec doesn't create Regions yet), and only a null pass
for testing exists.

This commit also changes the ownership model for sandboxir::PassManager:
instead of having a PassRegistry that owns passes, and PassManagers that
contain non-owning pointers to the passes, now PassManager owns (via
unique pointers) the passes it contains.

PassRegistry is now deleted, and the logic to parse and create a pass
pipeline is now in PassManager::setPassPipeline.

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[SandboxIR] Add RegionPass/RegionPassManager (#110933)

These classes mirror the existing FunctionPass/FunctionPassManager, and
will be used by the sandbox vectorizer to run a pipeline of region
pa

[SandboxIR] Add RegionPass/RegionPassManager (#110933)

These classes mirror the existing FunctionPass/FunctionPassManager, and
will be used by the sandbox vectorizer to run a pipeline of region
passes.

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Reapply "[SandboxIR][NFC] Delete SandboxIR.h (#110309)"

This reverts commit 8dfeb4ef5d60a5c764f0ce249cc4ec69e012ff93.

Revert "[SandboxIR][NFC] Delete SandboxIR.h (#110309)"

This reverts commit ca47f48a5c9e81ef8b5c4a5b1fbc473ea5d5497c.

[SandboxIR][NFC] Delete SandboxIR.h (#110309)

[SandboxIR][PassRegistry] Parse pipeline string (#108103)

This patch implements a simple version of the pipeline parsing function.
It currently only handles a single FPM and adds function passes to

[SandboxIR][PassRegistry] Parse pipeline string (#108103)

This patch implements a simple version of the pipeline parsing function.
It currently only handles a single FPM and adds function passes to it.

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[SandboxIR] Pass registry (#108084)

This patch implements a simple Pass Registry class, which takes
ownership of the passes registered with it and provides an interface to
get the pass pointer by

[SandboxIR] Pass registry (#108084)

This patch implements a simple Pass Registry class, which takes
ownership of the passes registered with it and provides an interface to
get the pass pointer by its name.

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[SandboxIR] PassManager (#107932)

This patch implements a simple pass manager for Sandbox IR.