Imported Upstream version 5.18.0.161

Former-commit-id: 4db48158d3a35497b8f118ab21b5f08ac3d86d98

external/llvm/lib/Target/SystemZ/SystemZConstantPoolValue.cpp

@@ -0,0 +1,52 @@
+//===-- SystemZConstantPoolValue.cpp - SystemZ constant-pool value --------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "SystemZConstantPoolValue.h"
+#include "llvm/ADT/FoldingSet.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/GlobalValue.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace llvm;
+
+SystemZConstantPoolValue::
+SystemZConstantPoolValue(const GlobalValue *gv,
+                         SystemZCP::SystemZCPModifier modifier)
+  : MachineConstantPoolValue(gv->getType()), GV(gv), Modifier(modifier) {}
+
+SystemZConstantPoolValue *
+SystemZConstantPoolValue::Create(const GlobalValue *GV,
+                                 SystemZCP::SystemZCPModifier Modifier) {
+  return new SystemZConstantPoolValue(GV, Modifier);
+}
+
+int SystemZConstantPoolValue::
+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) {
+      auto *ZCPV =
+        static_cast<SystemZConstantPoolValue *>(Constants[I].Val.MachineCPVal);
+      if (ZCPV->GV == GV && ZCPV->Modifier == Modifier)
+        return I;
+    }
+  }
+  return -1;
+}
+
+void SystemZConstantPoolValue::addSelectionDAGCSEId(FoldingSetNodeID &ID) {
+  ID.AddPointer(GV);
+  ID.AddInteger(Modifier);
+}
+
+void SystemZConstantPoolValue::print(raw_ostream &O) const {
+  O << GV << "@" << int(Modifier);
+}