[SandboxVec][Legality] Pack from different BBs (#124363)

When the inputs of the pack come from different BBs we need to make sure
we emit the pack instructions at the correct place.

[SandboxVec][Legality] Implement ShuffleMask (#123404)

This patch implements a helper ShuffleMask data structure that helps
describe shuffles of elements across lanes.

[SandboxVec][InstrMaps] EraseInstr callback (#123256)

This patch hooks up InstrMaps to the Sandbox IR callbacks such that it
gets updated when instructions get erased.

[SandboxVec][BottomUpVec] Implement InstrMaps (#122848)

InstrMaps is a helper data structure that maps scalars to vectors and
the reverse. This is used by the vectorizer to figure out which vectors

[SandboxVec][BottomUpVec] Implement InstrMaps (#122848)

InstrMaps is a helper data structure that maps scalars to vectors and
the reverse. This is used by the vectorizer to figure out which vectors
it can extract scalar values from.

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[SandboxVec] Notify scheduler about new instructions (#115102)

This patch registers the "createInstr" callback that notifies the
scheduler about newly created instructions. This guarantees that all

[SandboxVec] Notify scheduler about new instructions (#115102)

This patch registers the "createInstr" callback that notifies the
scheduler about newly created instructions. This guarantees that all
newly created instructions have a corresponding DAG node associated with
them. Without this the pass crashes when the scheduler encounters the
newly created vector instructions.

This patch also changes the lifetime of the sandboxir Ctx variable in
the SandboxVectorizer pass. It needs to be destroyed after the passes
get destroyed. Without this change when components like the Scheduler
get destroyed Ctx will have already been freed, which is not legal.

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[SandboxVec][Legality] Query the scheduler for legality (#114616)

This patch adds the legality check of whether the candidate instructions
can be scheduled together. This uses a Scheduler object.

[SandboxVec][Legality] Per opcode checks (#114145)

This patch adds more opcode-specific legality checks.

[SandboxVec][Legality] Check wrap flags (#113975)

[SandboxVec][Legality] Check Fastmath flags (#113967)

[SandboxVec][Legality] Check opcodes and types (#113741)

Reapply "[SandboxVec][Legality] Reject non-instructions (#113190)"

This reverts commit eb9f4756bc3daaa4b19f4f46521dc05180814de4.

Revert "[SandboxVec][Legality] Reject non-instructions (#113190)"

This reverts commit 6c9bbbc818ae8a0d2849dbc1ebd84a220cc27d20.

[SandboxVec][Legality] Reject non-instructions (#113190)

[SandboxVec][Legality] Scaffolding for Legality (#112623)

This patch adds a LegalityResultWithReason class for describing the
reason why legality decided not to vectorize the code.

[SandboxIR][NFC] Move Function class to a separate file (#110526)

[SandboxIR][NFC] Move Instruction classes into a separate file (#110294)

[SandboxVec] Legality boilerplate (#108650)

This patch adds the basic API for the Legality component of the
vectorizer. It also adds some very basic code in the bottom-up
vectorizer that uses the

[SandboxVec] Legality boilerplate (#108650)

This patch adds the basic API for the Legality component of the
vectorizer. It also adds some very basic code in the bottom-up
vectorizer that uses the API.

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