1 //===- llvm/Codegen/LinkAllCodegenComponents.h ------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by James M. Laskey and is distributed under the
6 // University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This header file pulls in all codegen related passes for tools like lli and
11 // llc that need this functionality.
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_CODEGEN_LINKALLCODEGENCOMPONENTS_H
16 #define LLVM_CODEGEN_LINKALLCODEGENCOMPONENTS_H
18 #include "llvm/CodeGen/Passes.h"
19 #include "llvm/CodeGen/ScheduleDAG.h"
22 struct ForceCodegenLinking {
23 ForceCodegenLinking() {
24 // We must reference the passes in such a way that compilers will not
25 // delete it all as dead code, even with whole program optimization,
26 // yet is effectively a NO-OP. As the compiler isn't smart enough
27 // to know that getenv() never returns -1, this will do the job.
28 if (std::getenv("bar") != (char*) -1)
31 (void) llvm::createSimpleRegisterAllocator();
32 (void) llvm::createLocalRegisterAllocator();
33 (void) llvm::createBigBlockRegisterAllocator();
34 (void) llvm::createLinearScanRegisterAllocator();
36 (void) llvm::createSimpleRegisterCoalescer();
38 (void) llvm::createBFS_DAGScheduler(NULL, NULL, NULL);
39 (void) llvm::createSimpleDAGScheduler(NULL, NULL, NULL);
40 (void) llvm::createNoItinsDAGScheduler(NULL, NULL, NULL);
41 (void) llvm::createBURRListDAGScheduler(NULL, NULL, NULL);
42 (void) llvm::createTDRRListDAGScheduler(NULL, NULL, NULL);
43 (void) llvm::createTDListDAGScheduler(NULL, NULL, NULL);
44 (void) llvm::createDefaultScheduler(NULL, NULL, NULL);
47 } ForceCodegenLinking; // Force link by creating a global definition.