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| author | dim <dim@FreeBSD.org> | 2011-10-20 21:10:27 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2011-10-20 21:10:27 +0000 |
| commit | 7b3392326c40c3c20697816acae597ba7b3144eb (patch) | |
| tree | 2cbcf22585e99f8a87d12d5ff94f392c0d266819 /lib/Target/PTX/PTXRegAlloc.cpp | |
| parent | 1176aa52646fe641a4243a246aa7f960c708a274 (diff) | |
| download | FreeBSD-src-7b3392326c40c3c20697816acae597ba7b3144eb.zip FreeBSD-src-7b3392326c40c3c20697816acae597ba7b3144eb.tar.gz | |
Vendor import of llvm release_30 branch r142614:
http://llvm.org/svn/llvm-project/llvm/branches/release_30@142614
Diffstat (limited to 'lib/Target/PTX/PTXRegAlloc.cpp')
| -rw-r--r-- | lib/Target/PTX/PTXRegAlloc.cpp | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/lib/Target/PTX/PTXRegAlloc.cpp b/lib/Target/PTX/PTXRegAlloc.cpp new file mode 100644 index 0000000..2d2d5c3 --- /dev/null +++ b/lib/Target/PTX/PTXRegAlloc.cpp @@ -0,0 +1,58 @@ +//===-- PTXRegAlloc.cpp - PTX Register Allocator --------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file contains a register allocator for PTX code. +// +//===----------------------------------------------------------------------===// + +#define DEBUG_TYPE "ptx-reg-alloc" + +#include "PTX.h" +#include "llvm/CodeGen/MachineFunctionPass.h" +#include "llvm/CodeGen/RegAllocRegistry.h" + +using namespace llvm; + +namespace { + // Special register allocator for PTX. + class PTXRegAlloc : public MachineFunctionPass { + public: + static char ID; + PTXRegAlloc() : MachineFunctionPass(ID) { + initializePHIEliminationPass(*PassRegistry::getPassRegistry()); + initializeTwoAddressInstructionPassPass(*PassRegistry::getPassRegistry()); + } + + virtual const char* getPassName() const { + return "PTX Register Allocator"; + } + + virtual void getAnalysisUsage(AnalysisUsage &AU) const { + AU.setPreservesCFG(); + AU.addRequiredID(PHIEliminationID); + AU.addRequiredID(TwoAddressInstructionPassID); + MachineFunctionPass::getAnalysisUsage(AU); + } + + virtual bool runOnMachineFunction(MachineFunction &MF) { + // We do not actually do anything (at least not yet). + return false; + } + }; + + char PTXRegAlloc::ID = 0; + + static RegisterRegAlloc + ptxRegAlloc("ptx", "PTX register allocator", createPTXRegisterAllocator); +} + +FunctionPass *llvm::createPTXRegisterAllocator() { + return new PTXRegAlloc(); +} + |
