//
// 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/Support/raw_ostream.h"
+#include <cstdlib>
using namespace llvm;
-ARMConstantPoolValue::ARMConstantPoolValue(GlobalValue *gv, unsigned id,
- ARMCP::ARMCPKind k,
- unsigned char PCAdj)
- : MachineConstantPoolValue((const Type*)gv->getType()),
- GV(gv), S(NULL), LabelId(id), Kind(k), PCAdjust(PCAdj) {}
+ARMConstantPoolValue::ARMConstantPoolValue(const Constant *cval, unsigned id,
+ ARMCP::ARMCPKind K,
+ unsigned char PCAdj,
+ const char *Modif,
+ bool AddCA)
+ : MachineConstantPoolValue((const Type*)cval->getType()),
+ CVal(cval), S(NULL), LabelId(id), Kind(K), PCAdjust(PCAdj),
+ Modifier(Modif), AddCurrentAddress(AddCA) {}
-ARMConstantPoolValue::ARMConstantPoolValue(const char *s, unsigned id,
- ARMCP::ARMCPKind k,
- unsigned char PCAdj)
- : MachineConstantPoolValue((const Type*)Type::Int32Ty),
- GV(NULL), S(s), LabelId(id), Kind(k), PCAdjust(PCAdj) {}
+ARMConstantPoolValue::ARMConstantPoolValue(LLVMContext &C,
+ const char *s, unsigned id,
+ unsigned char PCAdj,
+ const char *Modif,
+ bool AddCA)
+ : MachineConstantPoolValue((const Type*)Type::getInt32Ty(C)),
+ CVal(NULL), S(strdup(s)), LabelId(id), Kind(ARMCP::CPExtSymbol),
+ PCAdjust(PCAdj), Modifier(Modif), AddCurrentAddress(AddCA) {}
+
+ARMConstantPoolValue::ARMConstantPoolValue(const GlobalValue *gv,
+ const char *Modif)
+ : MachineConstantPoolValue((const Type*)Type::getInt32Ty(gv->getContext())),
+ CVal(gv), S(NULL), LabelId(0), Kind(ARMCP::CPValue), PCAdjust(0),
+ Modifier(Modif) {}
+
+const GlobalValue *ARMConstantPoolValue::getGV() const {
+ return dyn_cast_or_null<GlobalValue>(CVal);
+}
+
+const BlockAddress *ARMConstantPoolValue::getBlockAddress() const {
+ return dyn_cast_or_null<BlockAddress>(CVal);
+}
int ARMConstantPoolValue::getExistingMachineCPValue(MachineConstantPool *CP,
unsigned Alignment) {
- unsigned AlignMask = (1 << Alignment)-1;
+ 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->S == S &&
+ if (CPV->CVal == CVal &&
CPV->LabelId == LabelId &&
- CPV->Kind == Kind &&
- CPV->PCAdjust == PCAdjust)
+ CPV->PCAdjust == PCAdjust &&
+ (CPV->S == S || strcmp(CPV->S, S) == 0) &&
+ (CPV->Modifier == Modifier || strcmp(CPV->Modifier, Modifier) == 0))
return i;
}
}
return -1;
}
+ARMConstantPoolValue::~ARMConstantPoolValue() {
+ free((void*)S);
+}
+
void
ARMConstantPoolValue::AddSelectionDAGCSEId(FoldingSetNodeID &ID) {
- ID.AddPointer(GV);
+ ID.AddPointer(CVal);
ID.AddPointer(S);
ID.AddInteger(LabelId);
- ID.AddInteger((unsigned)Kind);
ID.AddInteger(PCAdjust);
}
-void ARMConstantPoolValue::print(std::ostream &O) const {
- if (GV)
- O << GV->getName();
+bool
+ARMConstantPoolValue::hasSameValue(ARMConstantPoolValue *ACPV) {
+ if (ACPV->Kind == Kind &&
+ ACPV->CVal == CVal &&
+ ACPV->PCAdjust == PCAdjust &&
+ (ACPV->S == S || strcmp(ACPV->S, S) == 0) &&
+ (ACPV->Modifier == Modifier || strcmp(ACPV->Modifier, Modifier) == 0)) {
+ 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 (CVal)
+ O << CVal->getName();
else
O << S;
- if (isNonLazyPointer()) O << "$non_lazy_ptr";
- else if (isStub()) O << "$stub";
- if (PCAdjust != 0) O << "-(LPIC" << LabelId << "+"
- << (unsigned)PCAdjust << ")";
+ if (Modifier) O << "(" << Modifier << ")";
+ if (PCAdjust != 0) {
+ O << "-(LPC" << LabelId << "+" << (unsigned)PCAdjust;
+ if (AddCurrentAddress) O << "-.";
+ O << ")";
+ }
}