[Utils] Remove unused includes (NFC) (#114748)

Identified with misc-include-cleaner.

[NewPM] Remove StripGCRelocatesLegacyPass (#73403)

This pass isn't used anywhere upstream and thus has no test coverage.
For these reasons, remove it.

[NewPM] Remove PredicateInfoPrinterLegacyPass (#73407)

This pass isn't used anywhere upstream and thus has no test coverage.
For these reasons, remove it.

[NewPM] Remove AssumeBundleBuilderPassLegacyPass (#72817)

This pass isn't used upstream anywhere and doesn't have have a
create...() function, thus isn't tested anywhere. Because of this,
remove i

[NewPM] Remove AssumeBundleBuilderPassLegacyPass (#72817)

This pass isn't used upstream anywhere and doesn't have have a
create...() function, thus isn't tested anywhere. Because of this,
remove it.

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[NewPM] Remove UnifyFunctionExitNodesLegacyPass (#72816)

UnifyFunctionExitNodesLegacyPass isn't used anywhere in upstream and
thus isn't tested at all. For these reasons, remove it.

[Transforms] Remove AddDiscriminatorsLegacyPass

The last use was removed by:

commit ae0987d242e266847f21f5fa1bffa97ce3eff586
Author: Kazu Hirata <kazu@google.com>
Date: Sat Jun 10 13:51:35

[Transforms] Remove AddDiscriminatorsLegacyPass

The last use was removed by:

commit ae0987d242e266847f21f5fa1bffa97ce3eff586
Author: Kazu Hirata <kazu@google.com>
Date: Sat Jun 10 13:51:35 2023 -0700

Differential Revision: https://reviews.llvm.org/D152636

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Re-apply "[Passes] Remove legacy PM versions of InstructionNamer and MetaRenamer"

A new attempt after removing uses of -instnamer in polly lit tests
in D148530.

[LegacyPM] Remove InjectTLIMappings and AssumeSimplify passes

Revert "[Passes] Remove legacy PM versions of InstructionNamer and MetaRenamer"

This reverts commit 981ec1faeb508a364cc47c8246b72fc89dd8c1d8.

It broke polly build bots. Polly still uses -instnamer

Revert "[Passes] Remove legacy PM versions of InstructionNamer and MetaRenamer"

This reverts commit 981ec1faeb508a364cc47c8246b72fc89dd8c1d8.

It broke polly build bots. Polly still uses -instnamer with legacy PM.

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[Passes] Remove legacy PM versions of InstructionNamer and MetaRenamer

[llvm-c] Remove PassRegistry and initialization APIs

Remove C APIs for interacting with PassRegistry and pass
initialization. These are legacy PM concepts, and are no longer
relevant for the new pas

[llvm-c] Remove PassRegistry and initialization APIs

Remove C APIs for interacting with PassRegistry and pass
initialization. These are legacy PM concepts, and are no longer
relevant for the new pass manager.

Calls to these initialization functions can simply be dropped.

Differential Revision: https://reviews.llvm.org/D145043

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[Transforms][LTO] Remove some redundant includes. NFC

No need to include CallGraphSCCPass.h from the IPO/Inliner.

Also removed the include of LegacyPassManager.h in a couple of files
that do not re

[Transforms][LTO] Remove some redundant includes. NFC

No need to include CallGraphSCCPass.h from the IPO/Inliner.

Also removed the include of LegacyPassManager.h in a couple of files
that do not really depend on that header file.

Differential Revision: https://reviews.llvm.org/D148083

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[Passes] Remove some legacy passes

DFAJumpThreading
JumpThreading
LibCallsShrink
LoopVectorize
SLPVectorizer
DeadStoreElimination
AggressiveDCE
CorrelatedValuePropagation
IndVarSimplify

These are p

[Passes] Remove some legacy passes

DFAJumpThreading
JumpThreading
LibCallsShrink
LoopVectorize
SLPVectorizer
DeadStoreElimination
AggressiveDCE
CorrelatedValuePropagation
IndVarSimplify

These are part of the optimization pipeline, of which the legacy version is deprecated and being removed.

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[llvm-c] Remove bindings for creating legacy passes

Legacy passes are only supported for codegen, and I don't believe
it's possible to write backends using the C API, so we should drop
all of those.

[llvm-c] Remove bindings for creating legacy passes

Legacy passes are only supported for codegen, and I don't believe
it's possible to write backends using the C API, so we should drop
all of those. Reduces the number of places that need to be modified
when removing legacy passes.

Differential Revision: https://reviews.llvm.org/D144970

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Reland [LegacyPM] Remove some legacy passes

These are part of the optimization pipeline, of which the legacy pass manager version is deprecated.

Namely
* Internalize
* StripSymbols
* StripNonDebugS

Reland [LegacyPM] Remove some legacy passes

These are part of the optimization pipeline, of which the legacy pass manager version is deprecated.

Namely
* Internalize
* StripSymbols
* StripNonDebugSymbols
* StripDeadDebugInfo
* StripDeadPrototypes
* VectorCombine
* WarnMissedTransformations

Fixed previously failing ocaml tests (one of them seems to already be failing?)

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Revert "[LegacyPM] Remove some legacy passes"

This reverts commit a4b4f62beb0bf40123181e5f5bdf32ef54f87166.

Ocaml bindings tests failing.

[LegacyPM] Remove some legacy passes

These are part of the optimization pipeline, of which the legacy pass manager version is deprecated.

Namely
* Internalize
* StripSymbols
* StripNonDebugSymbols

[LegacyPM] Remove some legacy passes

These are part of the optimization pipeline, of which the legacy pass manager version is deprecated.

Namely
* Internalize
* StripSymbols
* StripNonDebugSymbols
* StripDeadDebugInfo
* StripDeadPrototypes
* VectorCombine
* WarnMissedTransformations

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[LegacyPM] Remove NameAnonGlobalLegacyPass

Unused after LTO removal from optimization passline.

[LegacyPM] Remove CanonicalizeAliasesLegacyPass

Unused after LTO removal from optimization passline.

Reland "Lower `@llvm.global_dtors` using `__cxa_atexit` on MachO"

For MachO, lower `@llvm.global_dtors` into `@llvm_global_ctors` with
`__cxa_atexit` calls to avoid emitting the deprecated `__mod_te

Reland "Lower `@llvm.global_dtors` using `__cxa_atexit` on MachO"

For MachO, lower `@llvm.global_dtors` into `@llvm_global_ctors` with
`__cxa_atexit` calls to avoid emitting the deprecated `__mod_term_func`.

Reuse the existing `WebAssemblyLowerGlobalDtors.cpp` to accomplish this.

Enable fallback to the old behavior via Clang driver flag
(`-fregister-global-dtors-with-atexit`) or llc / code generation flag
(`-lower-global-dtors-via-cxa-atexit`). This escape hatch will be
removed in the future.

Differential Revision: https://reviews.llvm.org/D121736

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Revert "Lower `@llvm.global_dtors` using `__cxa_atexit` on MachO"

This reverts commit 22570bac694396514fff18dec926558951643fa6.

Lower `@llvm.global_dtors` using `__cxa_atexit` on MachO

For MachO, lower `@llvm.global_dtors` into `@llvm_global_ctors` with
`__cxa_atexit` calls to avoid emitting the deprecated `__mod_term_func`.

Lower `@llvm.global_dtors` using `__cxa_atexit` on MachO

For MachO, lower `@llvm.global_dtors` into `@llvm_global_ctors` with
`__cxa_atexit` calls to avoid emitting the deprecated `__mod_term_func`.

Reuse the existing `WebAssemblyLowerGlobalDtors.cpp` to accomplish this.

Enable fallback to the old behavior via Clang driver flag
(`-fregister-global-dtors-with-atexit`) or llc / code generation flag
(`-lower-global-dtors-via-cxa-atexit`). This escape hatch will be
removed in the future.

Differential Revision: https://reviews.llvm.org/D121736

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Cleanup header dependencies in LLVMCore

Based on the output of include-what-you-use.

This is a big chunk of changes. It is very likely to break downstream code
unless they took a lot of care in avo

Cleanup header dependencies in LLVMCore

Based on the output of include-what-you-use.

This is a big chunk of changes. It is very likely to break downstream code
unless they took a lot of care in avoiding hidden ehader dependencies, something
the LLVM codebase doesn't do that well :-/

I've tried to summarize the biggest change below:

- llvm/include/llvm-c/Core.h: no longer includes llvm-c/ErrorHandling.h
- llvm/IR/DIBuilder.h no longer includes llvm/IR/DebugInfo.h
- llvm/IR/IRBuilder.h no longer includes llvm/IR/IntrinsicInst.h
- llvm/IR/LLVMRemarkStreamer.h no longer includes llvm/Support/ToolOutputFile.h
- llvm/IR/LegacyPassManager.h no longer include llvm/Pass.h
- llvm/IR/Type.h no longer includes llvm/ADT/SmallPtrSet.h
- llvm/IR/PassManager.h no longer includes llvm/Pass.h nor llvm/Support/Debug.h

And the usual count of preprocessed lines:
$ clang++ -E -Iinclude -I../llvm/include ../llvm/lib/IR/*.cpp -std=c++14 -fno-rtti -fno-exceptions | wc -l
before: 6400831
after: 6189948

200k lines less to process is no that bad ;-)

Discourse thread on the topic: https://llvm.discourse.group/t/include-what-you-use-include-cleanup

Differential Revision: https://reviews.llvm.org/D118652

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Revert "[Passes] Add relative lookup table converter pass"

This reverts commit 5178ffc7cf92527557ae16e86d0fa90d538c2a19.

Compiling `llvm-profdata` with a compiler build from this produces a
crashin

Revert "[Passes] Add relative lookup table converter pass"

This reverts commit 5178ffc7cf92527557ae16e86d0fa90d538c2a19.

Compiling `llvm-profdata` with a compiler build from this produces a
crashing binary.

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[Passes] Add relative lookup table converter pass

Lookup tables generate non PIC-friendly code, which requires dynamic relocation as described in:
https://bugs.llvm.org/show_bug.cgi?id=45244

This p

[Passes] Add relative lookup table converter pass

Lookup tables generate non PIC-friendly code, which requires dynamic relocation as described in:
https://bugs.llvm.org/show_bug.cgi?id=45244

This patch adds a new pass that converts lookup tables to relative lookup tables to make them PIC-friendly.

Differential Revision: https://reviews.llvm.org/D94355

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