Andrew Scull | 5e1ddfa | 2018-08-14 10:06:54 +0100 | [diff] [blame] | 1 | //===- llvm/Codegen/LinkAllCodegenComponents.h ------------------*- C++ -*-===// |
| 2 | // |
Andrew Walbran | 16937d0 | 2019-10-22 13:54:20 +0100 | [diff] [blame] | 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 |
Andrew Scull | 5e1ddfa | 2018-08-14 10:06:54 +0100 | [diff] [blame] | 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 | |
Andrew Walbran | 16937d0 | 2019-10-22 13:54:20 +0100 | [diff] [blame] | 17 | #include "llvm/CodeGen/BuiltinGCs.h" |
Andrew Scull | 5e1ddfa | 2018-08-14 10:06:54 +0100 | [diff] [blame] | 18 | #include "llvm/CodeGen/Passes.h" |
| 19 | #include "llvm/CodeGen/SchedulerRegistry.h" |
| 20 | #include "llvm/Target/TargetMachine.h" |
| 21 | #include <cstdlib> |
| 22 | |
| 23 | namespace { |
| 24 | struct ForceCodegenLinking { |
| 25 | ForceCodegenLinking() { |
| 26 | // We must reference the passes in such a way that compilers will not |
| 27 | // delete it all as dead code, even with whole program optimization, |
| 28 | // yet is effectively a NO-OP. As the compiler isn't smart enough |
| 29 | // to know that getenv() never returns -1, this will do the job. |
| 30 | if (std::getenv("bar") != (char*) -1) |
| 31 | return; |
| 32 | |
| 33 | (void) llvm::createFastRegisterAllocator(); |
| 34 | (void) llvm::createBasicRegisterAllocator(); |
| 35 | (void) llvm::createGreedyRegisterAllocator(); |
| 36 | (void) llvm::createDefaultPBQPRegisterAllocator(); |
| 37 | |
Andrew Walbran | 16937d0 | 2019-10-22 13:54:20 +0100 | [diff] [blame] | 38 | llvm::linkAllBuiltinGCs(); |
Andrew Scull | 5e1ddfa | 2018-08-14 10:06:54 +0100 | [diff] [blame] | 39 | |
| 40 | (void) llvm::createBURRListDAGScheduler(nullptr, |
| 41 | llvm::CodeGenOpt::Default); |
| 42 | (void) llvm::createSourceListDAGScheduler(nullptr, |
| 43 | llvm::CodeGenOpt::Default); |
| 44 | (void) llvm::createHybridListDAGScheduler(nullptr, |
| 45 | llvm::CodeGenOpt::Default); |
| 46 | (void) llvm::createFastDAGScheduler(nullptr, llvm::CodeGenOpt::Default); |
| 47 | (void) llvm::createDefaultScheduler(nullptr, llvm::CodeGenOpt::Default); |
| 48 | (void) llvm::createVLIWDAGScheduler(nullptr, llvm::CodeGenOpt::Default); |
| 49 | |
| 50 | } |
| 51 | } ForceCodegenLinking; // Force link by creating a global definition. |
| 52 | } |
| 53 | |
| 54 | #endif |