Mercurial > hg > Members > tobaru > cbc > CbC_llvm
diff lib/Target/SystemZ/SystemZConstantPoolValue.cpp @ 0:95c75e76d11b
LLVM 3.4
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
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date | Thu, 12 Dec 2013 13:56:28 +0900 |
parents | |
children | 54457678186b |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lib/Target/SystemZ/SystemZConstantPoolValue.cpp Thu Dec 12 13:56:28 2013 +0900 @@ -0,0 +1,62 @@ +//===-- SystemZConstantPoolValue.cpp - SystemZ constant-pool value --------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "SystemZConstantPoolValue.h" +#include "llvm/ADT/FoldingSet.h" +#include "llvm/IR/DerivedTypes.h" +#include "llvm/IR/GlobalValue.h" +#include "llvm/Support/raw_ostream.h" + +using namespace llvm; + +SystemZConstantPoolValue:: +SystemZConstantPoolValue(const GlobalValue *gv, + SystemZCP::SystemZCPModifier modifier) + : MachineConstantPoolValue(gv->getType()), GV(gv), Modifier(modifier) {} + +SystemZConstantPoolValue * +SystemZConstantPoolValue::Create(const GlobalValue *GV, + SystemZCP::SystemZCPModifier Modifier) { + return new SystemZConstantPoolValue(GV, Modifier); +} + +unsigned SystemZConstantPoolValue::getRelocationInfo() const { + switch (Modifier) { + case SystemZCP::NTPOFF: + // May require a relocation, but the relocations are always resolved + // by the static linker. + return 1; + } + llvm_unreachable("Unknown modifier"); +} + +int SystemZConstantPoolValue:: +getExistingMachineCPValue(MachineConstantPool *CP, unsigned Alignment) { + unsigned AlignMask = Alignment - 1; + const std::vector<MachineConstantPoolEntry> &Constants = CP->getConstants(); + for (unsigned I = 0, E = Constants.size(); I != E; ++I) { + if (Constants[I].isMachineConstantPoolEntry() && + (Constants[I].getAlignment() & AlignMask) == 0) { + SystemZConstantPoolValue *ZCPV = + static_cast<SystemZConstantPoolValue *>(Constants[I].Val.MachineCPVal); + if (ZCPV->GV == GV && ZCPV->Modifier == Modifier) + return I; + } + } + return -1; +} + +void SystemZConstantPoolValue::addSelectionDAGCSEId(FoldingSetNodeID &ID) { + ID.AddPointer(GV); + ID.AddInteger(Modifier); +} + +void SystemZConstantPoolValue::print(raw_ostream &O) const { + O << GV << "@" << int(Modifier); +}