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Following up on D67687. Please refer to the RFC here http://lists.llvm.org/pipermail/llvm-dev/2020-July/143309.html `CodeGenPassBuilder` is the NPM counterpart of `TargetPassConfig` with below differences. - Debugging features (MIR print/verify, disable pass, start/stop-before/after, etc.) living in `TargetPassConfig` are moved to use PassInstrument as much as possible. (Implementation also lives in `TargetPassConfig.cpp`) - `TargetPassConfig` is a polymorphic base (virtual inheritance) to build the target-dependent pipeline whereas `CodeGenPassBuilder` is the CRTP base/helper to implement the target-dependent pipeline. The motivation is flexibility for targets to customize the pipeline, inlining opportunity, and fits the overall NPM value semantics design. - `TargetPassConfig` is a legacy immutable pass to declare hooks for targets to customize some target-independent codegen layer behavior. This is partially ported to TargetMachine::options. The rest, such as `createMachineScheduler/createPostMachineScheduler`, are left out for now. They should be implemented in LLVMTargetMachine in the future. Reviewed By: arsenm, aeubanks Differential Revision: https://reviews.llvm.org/D83608
26 lines
1001 B
C++
26 lines
1001 B
C++
//===--- CodeGenPassBuilder.cpp --------------------------------------- ---===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines interfaces to access the target independent code
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// generation passes provided by the LLVM backend.
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//
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//===---------------------------------------------------------------------===//
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#include "llvm/CodeGen/CodeGenPassBuilder.h"
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using namespace llvm;
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namespace llvm {
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#define DUMMY_MACHINE_MODULE_PASS(NAME, PASS_NAME, CONSTRUCTOR) \
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AnalysisKey PASS_NAME::Key;
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#include "llvm/CodeGen/MachinePassRegistry.def"
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#define DUMMY_MACHINE_FUNCTION_PASS(NAME, PASS_NAME, CONSTRUCTOR) \
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AnalysisKey PASS_NAME::Key;
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#include "llvm/CodeGen/MachinePassRegistry.def"
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} // namespace llvm
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