llvm-6502/include/llvm/CodeGen/LinkAllCodegenComponents.h
Dan Gohman 343f0c0467 Experimental post-pass scheduling support. Post-pass scheduling
is currently off by default, and can be enabled with
-disable-post-RA-scheduler=false.

This doesn't have a significant impact on most code yet because it doesn't
yet do anything to address anti-dependencies and it doesn't attempt to
disambiguate memory references. Also, several popular targets
don't have pipeline descriptions yet.

The majority of the changes here are splitting the SelectionDAG-specific
code out of ScheduleDAG, so that ScheduleDAG can be moved to
libLLVMCodeGen.a. The interface between ScheduleDAG-using code and
the rest of the scheduling code is somewhat rough and will evolve.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59676 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 23:18:57 +00:00

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2.0 KiB
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//===- llvm/Codegen/LinkAllCodegenComponents.h ------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This header file pulls in all codegen related passes for tools like lli and
// llc that need this functionality.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_LINKALLCODEGENCOMPONENTS_H
#define LLVM_CODEGEN_LINKALLCODEGENCOMPONENTS_H
#include "llvm/CodeGen/Passes.h"
#include "llvm/CodeGen/ScheduleDAGSDNodes.h"
#include "llvm/CodeGen/GCs.h"
namespace {
struct ForceCodegenLinking {
ForceCodegenLinking() {
// We must reference the passes in such a way that compilers will not
// delete it all as dead code, even with whole program optimization,
// yet is effectively a NO-OP. As the compiler isn't smart enough
// to know that getenv() never returns -1, this will do the job.
if (std::getenv("bar") != (char*) -1)
return;
(void) llvm::createDeadMachineInstructionElimPass();
(void) llvm::createSimpleRegisterAllocator();
(void) llvm::createLocalRegisterAllocator();
(void) llvm::createBigBlockRegisterAllocator();
(void) llvm::createLinearScanRegisterAllocator();
(void) llvm::createPBQPRegisterAllocator();
(void) llvm::createSimpleRegisterCoalescer();
llvm::linkOcamlGC();
llvm::linkShadowStackGC();
(void) llvm::createBURRListDAGScheduler(NULL, NULL, NULL, NULL, false);
(void) llvm::createTDRRListDAGScheduler(NULL, NULL, NULL, NULL, false);
(void) llvm::createTDListDAGScheduler(NULL, NULL, NULL, NULL, false);
(void) llvm::createFastDAGScheduler(NULL, NULL, NULL, NULL, false);
(void) llvm::createDefaultScheduler(NULL, NULL, NULL, NULL, false);
}
} ForceCodegenLinking; // Force link by creating a global definition.
}
#endif