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f785676f2a
all of the features in the current working draft of the upcoming C++ standard, provisionally named C++1y. The code generator's performance is greatly increased, and the loop auto-vectorizer is now enabled at -Os and -O2 in addition to -O3. The PowerPC backend has made several major improvements to code generation quality and compile time, and the X86, SPARC, ARM32, Aarch64 and SystemZ backends have all seen major feature work. Release notes for llvm and clang can be found here: <http://llvm.org/releases/3.4/docs/ReleaseNotes.html> <http://llvm.org/releases/3.4/tools/clang/docs/ReleaseNotes.html> MFC after: 1 month
62 lines
2 KiB
C++
62 lines
2 KiB
C++
//===-- SystemZConstantPoolValue.cpp - SystemZ constant-pool value --------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "SystemZConstantPoolValue.h"
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#include "llvm/ADT/FoldingSet.h"
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#include "llvm/IR/DerivedTypes.h"
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#include "llvm/IR/GlobalValue.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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SystemZConstantPoolValue::
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SystemZConstantPoolValue(const GlobalValue *gv,
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SystemZCP::SystemZCPModifier modifier)
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: MachineConstantPoolValue(gv->getType()), GV(gv), Modifier(modifier) {}
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SystemZConstantPoolValue *
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SystemZConstantPoolValue::Create(const GlobalValue *GV,
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SystemZCP::SystemZCPModifier Modifier) {
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return new SystemZConstantPoolValue(GV, Modifier);
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}
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unsigned SystemZConstantPoolValue::getRelocationInfo() const {
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switch (Modifier) {
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case SystemZCP::NTPOFF:
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// May require a relocation, but the relocations are always resolved
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// by the static linker.
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return 1;
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}
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llvm_unreachable("Unknown modifier");
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}
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int SystemZConstantPoolValue::
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getExistingMachineCPValue(MachineConstantPool *CP, unsigned Alignment) {
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unsigned AlignMask = Alignment - 1;
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const std::vector<MachineConstantPoolEntry> &Constants = CP->getConstants();
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for (unsigned I = 0, E = Constants.size(); I != E; ++I) {
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if (Constants[I].isMachineConstantPoolEntry() &&
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(Constants[I].getAlignment() & AlignMask) == 0) {
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SystemZConstantPoolValue *ZCPV =
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static_cast<SystemZConstantPoolValue *>(Constants[I].Val.MachineCPVal);
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if (ZCPV->GV == GV && ZCPV->Modifier == Modifier)
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return I;
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}
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}
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return -1;
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}
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void SystemZConstantPoolValue::addSelectionDAGCSEId(FoldingSetNodeID &ID) {
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ID.AddPointer(GV);
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ID.AddInteger(Modifier);
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}
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void SystemZConstantPoolValue::print(raw_ostream &O) const {
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O << GV << "@" << int(Modifier);
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}
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