-//===- ARMConstantPoolValue.cpp - ARM constantpool value --------*- C++ -*-===//
+//===-- ARMConstantPoolValue.cpp - ARM constantpool value -----------------===//
//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Evan Cheng and is distributed under the
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#include "ARMConstantPoolValue.h"
#include "llvm/ADT/FoldingSet.h"
+#include "llvm/Constant.h"
+#include "llvm/Constants.h"
#include "llvm/GlobalValue.h"
+#include "llvm/Type.h"
+#include "llvm/CodeGen/MachineBasicBlock.h"
+#include "llvm/Support/raw_ostream.h"
+#include <cstdlib>
using namespace llvm;
-ARMConstantPoolValue::ARMConstantPoolValue(GlobalValue *gv, unsigned id,
- bool isNonLazy, unsigned char PCAdj)
- : MachineConstantPoolValue((const Type*)gv->getType()),
- GV(gv), LabelId(id), isNonLazyPtr(isNonLazy), PCAdjust(PCAdj) {}
+//===----------------------------------------------------------------------===//
+// ARMConstantPoolValue
+//===----------------------------------------------------------------------===//
+
+ARMConstantPoolValue::ARMConstantPoolValue(Type *Ty, unsigned id,
+ ARMCP::ARMCPKind kind,
+ unsigned char PCAdj,
+ ARMCP::ARMCPModifier modifier,
+ bool addCurrentAddress)
+ : MachineConstantPoolValue(Ty), LabelId(id), Kind(kind),
+ PCAdjust(PCAdj), Modifier(modifier),
+ AddCurrentAddress(addCurrentAddress) {}
+
+ARMConstantPoolValue::ARMConstantPoolValue(LLVMContext &C, unsigned id,
+ ARMCP::ARMCPKind kind,
+ unsigned char PCAdj,
+ ARMCP::ARMCPModifier modifier,
+ bool addCurrentAddress)
+ : MachineConstantPoolValue((Type*)Type::getInt32Ty(C)),
+ LabelId(id), Kind(kind), PCAdjust(PCAdj), Modifier(modifier),
+ AddCurrentAddress(addCurrentAddress) {}
+
+ARMConstantPoolValue::~ARMConstantPoolValue() {}
+
+const char *ARMConstantPoolValue::getModifierText() const {
+ switch (Modifier) {
+ // FIXME: Are these case sensitive? It'd be nice to lower-case all the
+ // strings if that's legal.
+ case ARMCP::no_modifier: return "none";
+ case ARMCP::TLSGD: return "tlsgd";
+ case ARMCP::GOT: return "GOT";
+ case ARMCP::GOTOFF: return "GOTOFF";
+ case ARMCP::GOTTPOFF: return "gottpoff";
+ case ARMCP::TPOFF: return "tpoff";
+ }
+ llvm_unreachable("Unknown modifier!");
+}
int ARMConstantPoolValue::getExistingMachineCPValue(MachineConstantPool *CP,
unsigned Alignment) {
- unsigned AlignMask = (1 << Alignment)-1;
+ llvm_unreachable("Shouldn't be calling this directly!");
+}
+
+void
+ARMConstantPoolValue::addSelectionDAGCSEId(FoldingSetNodeID &ID) {
+ ID.AddInteger(LabelId);
+ ID.AddInteger(PCAdjust);
+}
+
+bool
+ARMConstantPoolValue::hasSameValue(ARMConstantPoolValue *ACPV) {
+ if (ACPV->Kind == Kind &&
+ ACPV->PCAdjust == PCAdjust &&
+ ACPV->Modifier == Modifier) {
+ if (ACPV->LabelId == LabelId)
+ return true;
+ // Two PC relative constpool entries containing the same GV address or
+ // external symbols. FIXME: What about blockaddress?
+ if (Kind == ARMCP::CPValue || Kind == ARMCP::CPExtSymbol)
+ return true;
+ }
+ return false;
+}
+
+void ARMConstantPoolValue::dump() const {
+ errs() << " " << *this;
+}
+
+void ARMConstantPoolValue::print(raw_ostream &O) const {
+ if (Modifier) O << "(" << getModifierText() << ")";
+ if (PCAdjust != 0) {
+ O << "-(LPC" << LabelId << "+" << (unsigned)PCAdjust;
+ if (AddCurrentAddress) O << "-.";
+ O << ")";
+ }
+}
+
+//===----------------------------------------------------------------------===//
+// ARMConstantPoolConstant
+//===----------------------------------------------------------------------===//
+
+ARMConstantPoolConstant::ARMConstantPoolConstant(Type *Ty,
+ const Constant *C,
+ unsigned ID,
+ ARMCP::ARMCPKind Kind,
+ unsigned char PCAdj,
+ ARMCP::ARMCPModifier Modifier,
+ bool AddCurrentAddress)
+ : ARMConstantPoolValue(Ty, ID, Kind, PCAdj, Modifier, AddCurrentAddress),
+ CVal(C) {}
+
+ARMConstantPoolConstant::ARMConstantPoolConstant(const Constant *C,
+ unsigned ID,
+ ARMCP::ARMCPKind Kind,
+ unsigned char PCAdj,
+ ARMCP::ARMCPModifier Modifier,
+ bool AddCurrentAddress)
+ : ARMConstantPoolValue((Type*)C->getType(), ID, Kind, PCAdj, Modifier,
+ AddCurrentAddress),
+ CVal(C) {}
+
+ARMConstantPoolConstant *
+ARMConstantPoolConstant::Create(const Constant *C, unsigned ID) {
+ return new ARMConstantPoolConstant(C, ID, ARMCP::CPValue, 0,
+ ARMCP::no_modifier, false);
+}
+
+ARMConstantPoolConstant *
+ARMConstantPoolConstant::Create(const GlobalValue *GV,
+ ARMCP::ARMCPModifier Modifier) {
+ return new ARMConstantPoolConstant((Type*)Type::getInt32Ty(GV->getContext()),
+ GV, 0, ARMCP::CPValue, 0,
+ Modifier, false);
+}
+
+ARMConstantPoolConstant *
+ARMConstantPoolConstant::Create(const Constant *C, unsigned ID,
+ ARMCP::ARMCPKind Kind, unsigned char PCAdj) {
+ return new ARMConstantPoolConstant(C, ID, Kind, PCAdj,
+ ARMCP::no_modifier, false);
+}
+
+ARMConstantPoolConstant *
+ARMConstantPoolConstant::Create(const Constant *C, unsigned ID,
+ ARMCP::ARMCPKind Kind, unsigned char PCAdj,
+ ARMCP::ARMCPModifier Modifier,
+ bool AddCurrentAddress) {
+ return new ARMConstantPoolConstant(C, ID, Kind, PCAdj, Modifier,
+ AddCurrentAddress);
+}
+
+const GlobalValue *ARMConstantPoolConstant::getGV() const {
+ return dyn_cast_or_null<GlobalValue>(CVal);
+}
+
+const BlockAddress *ARMConstantPoolConstant::getBlockAddress() const {
+ return dyn_cast_or_null<BlockAddress>(CVal);
+}
+
+int ARMConstantPoolConstant::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].Offset & AlignMask) == 0) {
+ (Constants[i].getAlignment() & AlignMask) == 0) {
ARMConstantPoolValue *CPV =
(ARMConstantPoolValue *)Constants[i].Val.MachineCPVal;
- if (CPV->GV == GV && CPV->LabelId == LabelId &&
- CPV->isNonLazyPtr == isNonLazyPtr)
+ ARMConstantPoolConstant *APC = dyn_cast<ARMConstantPoolConstant>(CPV);
+ if (!APC) continue;
+ if (APC->CVal == CVal && equals(APC))
return i;
}
}
return -1;
}
-void
-ARMConstantPoolValue::AddSelectionDAGCSEId(FoldingSetNodeID &ID) {
- ID.AddPointer(GV);
- ID.AddInteger(LabelId);
- ID.AddInteger((unsigned)isNonLazyPtr);
- ID.AddInteger(PCAdjust);
+bool ARMConstantPoolConstant::hasSameValue(ARMConstantPoolValue *ACPV) {
+ const ARMConstantPoolConstant *ACPC = dyn_cast<ARMConstantPoolConstant>(ACPV);
+ return ACPC && ACPC->CVal == CVal && ARMConstantPoolValue::hasSameValue(ACPV);
+}
+
+void ARMConstantPoolConstant::addSelectionDAGCSEId(FoldingSetNodeID &ID) {
+ ID.AddPointer(CVal);
+ ARMConstantPoolValue::addSelectionDAGCSEId(ID);
+}
+
+void ARMConstantPoolConstant::print(raw_ostream &O) const {
+ O << CVal->getName();
+ ARMConstantPoolValue::print(O);
+}
+
+//===----------------------------------------------------------------------===//
+// ARMConstantPoolSymbol
+//===----------------------------------------------------------------------===//
+
+ARMConstantPoolSymbol::ARMConstantPoolSymbol(LLVMContext &C, const char *s,
+ unsigned id,
+ unsigned char PCAdj,
+ ARMCP::ARMCPModifier Modifier,
+ bool AddCurrentAddress)
+ : ARMConstantPoolValue(C, id, ARMCP::CPExtSymbol, PCAdj, Modifier,
+ AddCurrentAddress),
+ S(strdup(s)) {}
+
+ARMConstantPoolSymbol::~ARMConstantPoolSymbol() {
+ free((void*)S);
+}
+
+ARMConstantPoolSymbol *
+ARMConstantPoolSymbol::Create(LLVMContext &C, const char *s,
+ unsigned ID, unsigned char PCAdj) {
+ return new ARMConstantPoolSymbol(C, s, ID, PCAdj, ARMCP::no_modifier, false);
+}
+
+static bool CPV_streq(const char *S1, const char *S2) {
+ if (S1 == S2)
+ return true;
+ if (S1 && S2 && strcmp(S1, S2) == 0)
+ return true;
+ return false;
+}
+
+int ARMConstantPoolSymbol::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) {
+ ARMConstantPoolValue *CPV =
+ (ARMConstantPoolValue *)Constants[i].Val.MachineCPVal;
+ ARMConstantPoolSymbol *APS = dyn_cast<ARMConstantPoolSymbol>(CPV);
+ if (!APS) continue;
+
+ if (CPV_streq(APS->S, S) && equals(APS))
+ return i;
+ }
+ }
+
+ return -1;
+}
+
+bool ARMConstantPoolSymbol::hasSameValue(ARMConstantPoolValue *ACPV) {
+ const ARMConstantPoolSymbol *ACPS = dyn_cast<ARMConstantPoolSymbol>(ACPV);
+ return ACPS && CPV_streq(ACPS->S, S) &&
+ ARMConstantPoolValue::hasSameValue(ACPV);
+}
+
+void ARMConstantPoolSymbol::addSelectionDAGCSEId(FoldingSetNodeID &ID) {
+ ID.AddPointer(S);
+ ARMConstantPoolValue::addSelectionDAGCSEId(ID);
+}
+
+void ARMConstantPoolSymbol::print(raw_ostream &O) const {
+ O << S;
+ ARMConstantPoolValue::print(O);
+}
+
+//===----------------------------------------------------------------------===//
+// ARMConstantPoolMBB
+//===----------------------------------------------------------------------===//
+
+ARMConstantPoolMBB::ARMConstantPoolMBB(LLVMContext &C,
+ const MachineBasicBlock *mbb,
+ unsigned id, unsigned char PCAdj,
+ ARMCP::ARMCPModifier Modifier,
+ bool AddCurrentAddress)
+ : ARMConstantPoolValue(C, id, ARMCP::CPMachineBasicBlock, PCAdj,
+ Modifier, AddCurrentAddress),
+ MBB(mbb) {}
+
+ARMConstantPoolMBB *ARMConstantPoolMBB::Create(LLVMContext &C,
+ const MachineBasicBlock *mbb,
+ unsigned ID,
+ unsigned char PCAdj) {
+ return new ARMConstantPoolMBB(C, mbb, ID, PCAdj, ARMCP::no_modifier, false);
+}
+
+int ARMConstantPoolMBB::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) {
+ ARMConstantPoolValue *CPV =
+ (ARMConstantPoolValue *)Constants[i].Val.MachineCPVal;
+ ARMConstantPoolMBB *APMBB = dyn_cast<ARMConstantPoolMBB>(CPV);
+ if (!APMBB) continue;
+
+ if (APMBB->MBB == MBB && equals(APMBB))
+ return i;
+ }
+ }
+
+ return -1;
+}
+
+bool ARMConstantPoolMBB::hasSameValue(ARMConstantPoolValue *ACPV) {
+ const ARMConstantPoolMBB *ACPMBB = dyn_cast<ARMConstantPoolMBB>(ACPV);
+ return ACPMBB && ACPMBB->MBB == MBB &&
+ ARMConstantPoolValue::hasSameValue(ACPV);
+}
+
+void ARMConstantPoolMBB::addSelectionDAGCSEId(FoldingSetNodeID &ID) {
+ ID.AddPointer(MBB);
+ ARMConstantPoolValue::addSelectionDAGCSEId(ID);
}
-void ARMConstantPoolValue::print(std::ostream &O) const {
- O << GV->getName();
- if (isNonLazyPtr) O << "$non_lazy_ptr";
- if (PCAdjust != 0) O << "-(LPIC" << LabelId << "+"
- << (unsigned)PCAdjust << ")";
+void ARMConstantPoolMBB::print(raw_ostream &O) const {
+ O << "BB#" << MBB->getNumber();
+ ARMConstantPoolValue::print(O);
}
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