55 lines
2.3 KiB
C++
55 lines
2.3 KiB
C++
//===- llvm/Codegen/LinkAllCodegenComponents.h ------------------*- C++ -*-===//
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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 header file pulls in all codegen related passes for tools like lli and
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// llc that need this functionality.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_LINKALLCODEGENCOMPONENTS_H
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#define LLVM_CODEGEN_LINKALLCODEGENCOMPONENTS_H
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#include "llvm/CodeGen/Passes.h"
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#include "llvm/CodeGen/SchedulerRegistry.h"
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#include "llvm/Support/AlwaysTrue.h"
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#include "llvm/Target/TargetMachine.h"
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namespace {
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struct ForceCodegenLinking {
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ForceCodegenLinking() {
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// We must reference the passes in such a way that compilers will not
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// delete it all as dead code, even with whole program optimization,
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// yet is effectively a NO-OP. This is so that globals in the translation
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// units where these functions are defined are forced to be initialized,
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// populating various registries.
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if (llvm::getNonFoldableAlwaysTrue())
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return;
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(void) llvm::createFastRegisterAllocator();
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(void) llvm::createBasicRegisterAllocator();
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(void) llvm::createGreedyRegisterAllocator();
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(void) llvm::createDefaultPBQPRegisterAllocator();
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(void)llvm::createBURRListDAGScheduler(nullptr,
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llvm::CodeGenOptLevel::Default);
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(void)llvm::createSourceListDAGScheduler(nullptr,
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llvm::CodeGenOptLevel::Default);
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(void)llvm::createHybridListDAGScheduler(nullptr,
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llvm::CodeGenOptLevel::Default);
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(void)llvm::createFastDAGScheduler(nullptr,
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llvm::CodeGenOptLevel::Default);
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(void)llvm::createDefaultScheduler(nullptr,
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llvm::CodeGenOptLevel::Default);
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(void)llvm::createVLIWDAGScheduler(nullptr,
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llvm::CodeGenOptLevel::Default);
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}
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} ForceCodegenLinking; // Force link by creating a global definition.
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}
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#endif
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