[AMDGPU][NewPM] Port SILowerControlFlow pass into NPM. (#123045)

[AMDGPU] Use LV wrapperPass in getAnalysisUsage. (#123044)

[AMDGPU][NFC] Correct description (#112847)

[AMDGPU][NFC] Update comment referring to SIRemoveShortExecBranches pass (#109756)

That pass no longer exists, since
5df2af8b0ef33f48b1ee72bcd27bc609b898da52 has merged it into
SIPreEmitPeephole.

[CodeGen][NewPM] Port `LiveIntervals` to new pass manager (#98118)

- Add `LiveIntervalsAnalysis`.
- Add `LiveIntervalsPrinterPass`.
- Use `LiveIntervalsWrapperPass` in legacy pass manager.
- Use

[CodeGen][NewPM] Port `LiveIntervals` to new pass manager (#98118)

- Add `LiveIntervalsAnalysis`.
- Add `LiveIntervalsPrinterPass`.
- Use `LiveIntervalsWrapperPass` in legacy pass manager.
- Use `std::unique_ptr` instead of raw pointer for `LICalc`, so
destructor and default move constructor can handle it correctly.

This would be the last analysis required by `PHIElimination`.

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[CodeGen][NewPM] Port `SlotIndexes` to new pass manager (#97941)

- Add `SlotIndexesAnalysis`.
- Add `SlotIndexesPrinterPass`.
- Use `SlotIndexesWrapperPass` in legacy pass.

[CodeGen][NewPM] Port `LiveVariables` to new pass manager (#97880)

- Port `LiveVariables` to new pass manager.
- Convert to `LiveVariablesWrapperPass` in legacy pass manager.

[CodeGen][NewPM] Split `MachineDominatorTree` into a concrete analysis result (#94571)

Prepare for new pass manager version of `MachineDominatorTreeAnalysis`.
We may need a machine dominator tree v

[CodeGen][NewPM] Split `MachineDominatorTree` into a concrete analysis result (#94571)

Prepare for new pass manager version of `MachineDominatorTreeAnalysis`.
We may need a machine dominator tree version of `DomTreeUpdater` to
handle `SplitCriticalEdge` in some CodeGen passes.

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[AMDGPU] Move INIT_EXEC lowering from SILowerControlFlow to SIWholeQuadMode (#94452)

NFCI; this just preserves SI_INIT_EXEC and SI_INIT_EXEC_FROM_INPUT
instructions a little longer so that we can r

[AMDGPU] Move INIT_EXEC lowering from SILowerControlFlow to SIWholeQuadMode (#94452)

NFCI; this just preserves SI_INIT_EXEC and SI_INIT_EXEC_FROM_INPUT
instructions a little longer so that we can reliably identify them in
SIWholeQuadMode.

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[NFC][CodeGen] Change CodeGenOpt::Level/CodeGenFileType into enum classes (#66295)

This will make it easy for callers to see issues with and fix up calls
to createTargetMachine after a future chang

[NFC][CodeGen] Change CodeGenOpt::Level/CodeGenFileType into enum classes (#66295)

This will make it easy for callers to see issues with and fix up calls
to createTargetMachine after a future change to the params of
TargetMachine.

This matches other nearby enums.

For downstream users, this should be a fairly straightforward
replacement,
e.g. s/CodeGenOpt::Aggressive/CodeGenOptLevel::Aggressive
or s/CGFT_/CodeGenFileType::

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[AMDGPU] SILowerControlFlow: fix preservation of LiveIntervals

In emitElse live interval for SI_ELSE source must be recalculated
as SI_ELSE is removed, and new user is placed at block start.
In emit

[AMDGPU] SILowerControlFlow: fix preservation of LiveIntervals

In emitElse live interval for SI_ELSE source must be recalculated
as SI_ELSE is removed, and new user is placed at block start.
In emitIfBreak live interval for new created AndReg must be
computed.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D158141

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[AMDGPU] Make use of MachineInstr::all_defs and all_uses. NFCI.

Revert "Revert "[AMDGPU] Update LiveVariables in SILowerControlFlow""

Accidental error.

This reverts commit 2e823da8dc652b23738e2d3b8e7e7f21335816eb.

Revert "[AMDGPU] Update LiveVariables in SILowerControlFlow"

This reverts commit 069f027e1e6b1db9e3e6dcf4193c670e2be3d5d5.

[AMDGPU] Update LiveVariables in SILowerControlFlow

Update kills in one place that was missed. Fixes a test failure that
would otherwise be introduced by D149651.

AMDGPU: Fix LiveVariables verifier error for values defined before SI_END_CF

GlobalISel happens to insert some constant materializes before SI_END_CF
in one test. These need to be excluded from Aliv

AMDGPU: Fix LiveVariables verifier error for values defined before SI_END_CF

GlobalISel happens to insert some constant materializes before SI_END_CF
in one test. These need to be excluded from AliveBlocks since they
are defined in the original block and used in the split block,
so they aren't fully alive through either block.

The case where the value defined in the first block which was originally used
in a later block is still broken.

Avoids a verifier error in a future patch.

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[AMDGPU] SILowerControlFlow uses LiveIntervals

The availability of LiveIntervals affects kill flags in the output, so
declare the use to avoid strange effects where the output of this pass
is differ

[AMDGPU] SILowerControlFlow uses LiveIntervals

The availability of LiveIntervals affects kill flags in the output, so
declare the use to avoid strange effects where the output of this pass
is different depending on what other passes are scheduled after it.

Differential Revision: https://reviews.llvm.org/D129555

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AMDGPU: Fix LiveVariables error after lowering SI_END_CF

This wasn't accounting for the block change in updating LiveVariables.

[NFC][CodeGen] Rename some functions in MachineInstr.h and remove duplicated comments

[AMDGPU][NFC] Fix typos

Fix some typos in the amdgpu backend.

Differential Revision: https://reviews.llvm.org/D119235

[AMDGPU] Return better Changed status from SILowerControlFlow

Differential Revision: https://reviews.llvm.org/D120025

[AMDGPU] Disable optimizeEndCf at -O0

Reviewed By: rampitec

Differential Revision: https://reviews.llvm.org/D116819

[AMDGPU] Iterate LoweredEndCf in the reverse order

The function that optimally inserts the exec mask
restore operations by combining the blocks currently
visits the lowered END_CF pseudos in the for

[AMDGPU] Iterate LoweredEndCf in the reverse order

The function that optimally inserts the exec mask
restore operations by combining the blocks currently
visits the lowered END_CF pseudos in the forward
direction as it iterates the setvector in the order
the entries are inserted in it.

Due to the absence of BranchFolding at -O0, the
irregularly placed BBs cause the forward traversal
to incorrectly place two unconditional branches in
certain BBs while combining them, especially when
an intervening block later gets optimized away in
subsequent iterations.

It is avoided by reverse iterating the setvector.
The blocks at the bottom of a function will get
optimized first before processing those at the top.

Fixes: SWDEV-315215

Reviewed By: rampitec

Differential Revision: https://reviews.llvm.org/D116273

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[AMDGPU][NFC] Fix typos

Differential Revision: https://reviews.llvm.org/D113672

[AMDGPU] Really preserve LiveVariables in SILowerControlFlow

https://bugs.llvm.org/show_bug.cgi?id=52204

Differential Revision: https://reviews.llvm.org/D112731