1 //===- llvm/Codegen/LinkAllCodegenComponents.h ------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // 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"
20 #include "llvm/CodeGen/Collectors.h"
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. As the compiler isn't smart enough
28 // to know that getenv() never returns -1, this will do the job.
29 if (std::getenv("bar") != (char*) -1)
32 (void) llvm::createSimpleRegisterAllocator();
33 (void) llvm::createLocalRegisterAllocator();
34 (void) llvm::createBigBlockRegisterAllocator();
35 (void) llvm::createLinearScanRegisterAllocator();
37 (void) llvm::createSimpleRegisterCoalescer();
39 (void) llvm::createShadowStackCollector();
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.