#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,
+ARMConstantPoolValue::ARMConstantPoolValue(const Constant *cval, unsigned id,
+ ARMCP::ARMCPKind K,
unsigned char PCAdj,
- const char *Modif,
+ ARMCP::ARMCPModifier Modif,
bool AddCA)
- : MachineConstantPoolValue((const Type*)gv->getType()),
- GV(gv), S(NULL), LabelId(id), PCAdjust(PCAdj),
+ : MachineConstantPoolValue((const Type*)cval->getType()),
+ CVal(cval), S(NULL), LabelId(id), Kind(K), PCAdjust(PCAdj),
Modifier(Modif), AddCurrentAddress(AddCA) {}
ARMConstantPoolValue::ARMConstantPoolValue(LLVMContext &C,
const char *s, unsigned id,
unsigned char PCAdj,
- const char *Modif,
+ ARMCP::ARMCPModifier Modif,
bool AddCA)
: MachineConstantPoolValue((const Type*)Type::getInt32Ty(C)),
- GV(NULL), S(strdup(s)), LabelId(id), PCAdjust(PCAdj),
- Modifier(Modif), AddCurrentAddress(AddCA) {}
+ CVal(NULL), S(strdup(s)), LabelId(id), Kind(ARMCP::CPExtSymbol),
+ PCAdjust(PCAdj), Modifier(Modif), AddCurrentAddress(AddCA) {}
-ARMConstantPoolValue::ARMConstantPoolValue(GlobalValue *gv, const char *Modif)
+ARMConstantPoolValue::ARMConstantPoolValue(const GlobalValue *gv,
+ ARMCP::ARMCPModifier Modif)
: MachineConstantPoolValue((const Type*)Type::getInt32Ty(gv->getContext())),
- GV(gv), S(NULL), LabelId(0), PCAdjust(0),
+ 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);
+}
+
+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 ARMConstantPoolValue::getExistingMachineCPValue(MachineConstantPool *CP,
unsigned Alignment) {
unsigned AlignMask = Alignment - 1;
(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->PCAdjust == PCAdjust)
+ CPV->PCAdjust == PCAdjust &&
+ CPV_streq(CPV->S, S) &&
+ CPV->Modifier == Modifier)
return i;
}
}
void
ARMConstantPoolValue::AddSelectionDAGCSEId(FoldingSetNodeID &ID) {
- ID.AddPointer(GV);
+ ID.AddPointer(CVal);
ID.AddPointer(S);
ID.AddInteger(LabelId);
ID.AddInteger(PCAdjust);
}
+bool
+ARMConstantPoolValue::hasSameValue(ARMConstantPoolValue *ACPV) {
+ if (ACPV->Kind == Kind &&
+ ACPV->CVal == CVal &&
+ ACPV->PCAdjust == PCAdjust &&
+ CPV_streq(ACPV->S, S) &&
+ 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 (GV)
- O << GV->getName();
+ if (CVal)
+ O << CVal->getName();
else
O << S;
- if (Modifier) O << "(" << Modifier << ")";
+ if (Modifier) O << "(" << getModifierText() << ")";
if (PCAdjust != 0) {
O << "-(LPC" << LabelId << "+" << (unsigned)PCAdjust;
if (AddCurrentAddress) O << "-.";