ARM backend contribution from Apple.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33353 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMConstantPoolValue.cpp b/lib/Target/ARM/ARMConstantPoolValue.cpp
new file mode 100644
index 0000000..97cca07
--- /dev/null
+++ b/lib/Target/ARM/ARMConstantPoolValue.cpp
@@ -0,0 +1,55 @@
+//===- ARMConstantPoolValue.cpp - ARM constantpool value --------*- C++ -*-===//
+//
+// 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 implements the ARM specific constantpool value class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ARMConstantPoolValue.h"
+#include "llvm/ADT/FoldingSet.h"
+#include "llvm/GlobalValue.h"
+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) {}
+
+int ARMConstantPoolValue::getExistingMachineCPValue(MachineConstantPool *CP,
+ unsigned Alignment) {
+ unsigned AlignMask = (1 << 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) {
+ ARMConstantPoolValue *CPV =
+ (ARMConstantPoolValue *)Constants[i].Val.MachineCPVal;
+ if (CPV->GV == GV && CPV->LabelId == LabelId &&
+ CPV->isNonLazyPtr == isNonLazyPtr)
+ return i;
+ }
+ }
+
+ return -1;
+}
+
+void
+ARMConstantPoolValue::AddSelectionDAGCSEId(FoldingSetNodeID &ID) {
+ ID.AddPointer(GV);
+ ID.AddInteger(LabelId);
+ ID.AddInteger((unsigned)isNonLazyPtr);
+ ID.AddInteger(PCAdjust);
+}
+
+void ARMConstantPoolValue::print(std::ostream &O) const {
+ O << GV->getName();
+ if (isNonLazyPtr) O << "$non_lazy_ptr";
+ if (PCAdjust != 0) O << "-(LPIC" << LabelId << "+"
+ << (unsigned)PCAdjust << ")";
+}