1//===- llvm/Codegen/LinkAllCodegenComponents.h ------------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This header file pulls in all codegen related passes for tools like lli and
10// llc that need this functionality.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_CODEGEN_LINKALLCODEGENCOMPONENTS_H
15#define LLVM_CODEGEN_LINKALLCODEGENCOMPONENTS_H
16
17#include "llvm/CodeGen/Passes.h"
18#include "llvm/CodeGen/SchedulerRegistry.h"
19#include "llvm/Support/AlwaysTrue.h"
20#include "llvm/Target/TargetMachine.h"
21
22namespace {
23 struct ForceCodegenLinking {
24 ForceCodegenLinking() {
25 // We must reference the passes in such a way that compilers will not
26 // delete it all as dead code, even with whole program optimization,
27 // yet is effectively a NO-OP. This is so that globals in the translation
28 // units where these functions are defined are forced to be initialized,
29 // populating various registries.
30 if (llvm::getNonFoldableAlwaysTrue())
31 return;
32
33 (void) llvm::createFastRegisterAllocator();
34 (void) llvm::createBasicRegisterAllocator();
35 (void) llvm::createGreedyRegisterAllocator();
36 (void) llvm::createDefaultPBQPRegisterAllocator();
37
38 (void)llvm::createBURRListDAGScheduler(IS: nullptr,
39 OptLevel: llvm::CodeGenOptLevel::Default);
40 (void)llvm::createSourceListDAGScheduler(IS: nullptr,
41 OptLevel: llvm::CodeGenOptLevel::Default);
42 (void)llvm::createHybridListDAGScheduler(IS: nullptr,
43 llvm::CodeGenOptLevel::Default);
44 (void)llvm::createFastDAGScheduler(IS: nullptr,
45 OptLevel: llvm::CodeGenOptLevel::Default);
46 (void)llvm::createDefaultScheduler(IS: nullptr,
47 OptLevel: llvm::CodeGenOptLevel::Default);
48 (void)llvm::createVLIWDAGScheduler(IS: nullptr,
49 OptLevel: llvm::CodeGenOptLevel::Default);
50 }
51 } ForceCodegenLinking; // Force link by creating a global definition.
52}
53
54#endif
55