1 files changed, 57 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/Target/SystemZ/SystemZConstantPoolValue.h b/contrib/llvm-project/llvm/lib/Target/SystemZ/SystemZConstantPoolValue.h
new file mode 100644
index 000000000000..6cb7710abdfe
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+++ b/contrib/llvm-project/llvm/lib/Target/SystemZ/SystemZConstantPoolValue.h
@@ -0,0 +1,57 @@
+//===- SystemZConstantPoolValue.h - SystemZ constant-pool value -*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZCONSTANTPOOLVALUE_H
+#define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZCONSTANTPOOLVALUE_H
+
+#include "llvm/CodeGen/MachineConstantPool.h"
+#include "llvm/Support/ErrorHandling.h"
+
+namespace llvm {
+
+class GlobalValue;
+
+namespace SystemZCP {
+enum SystemZCPModifier {
+  TLSGD,
+  TLSLDM,
+  DTPOFF,
+  NTPOFF
+};
+} // end namespace SystemZCP
+
+/// A SystemZ-specific constant pool value.  At present, the only
+/// defined constant pool values are module IDs or offsets of
+/// thread-local variables (written x@TLSGD, x@TLSLDM, x@DTPOFF,
+/// or x@NTPOFF).
+class SystemZConstantPoolValue : public MachineConstantPoolValue {
+  const GlobalValue *GV;
+  SystemZCP::SystemZCPModifier Modifier;
+
+protected:
+  SystemZConstantPoolValue(const GlobalValue *GV,
+                           SystemZCP::SystemZCPModifier Modifier);
+
+public:
+  static SystemZConstantPoolValue *
+    Create(const GlobalValue *GV, SystemZCP::SystemZCPModifier Modifier);
+
+  // Override MachineConstantPoolValue.
+  int getExistingMachineCPValue(MachineConstantPool *CP,
+                                unsigned Alignment) override;
+  void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;
+  void print(raw_ostream &O) const override;
+
+  // Access SystemZ-specific fields.
+  const GlobalValue *getGlobalValue() const { return GV; }
+  SystemZCP::SystemZCPModifier getModifier() const { return Modifier; }
+};
+
+} // end namespace llvm
+
+#endif