1 files changed, 69 insertions, 0 deletions
diff --git a/llvm/lib/Target/CSKY/MCTargetDesc/CSKYMCExpr.h b/llvm/lib/Target/CSKY/MCTargetDesc/CSKYMCExpr.h
new file mode 100644
index 000000000000..06fccada53ce
--- /dev/null
+++ b/llvm/lib/Target/CSKY/MCTargetDesc/CSKYMCExpr.h
@@ -0,0 +1,69 @@
+//===-- CSKYMCExpr.h - CSKY specific MC expression classes -*- 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_LANAI_MCTARGETDESC_LANAIMCEXPR_H
+#define LLVM_LIB_TARGET_LANAI_MCTARGETDESC_LANAIMCEXPR_H
+
+#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCValue.h"
+
+namespace llvm {
+
+class CSKYMCExpr : public MCTargetExpr {
+public:
+  enum VariantKind {
+    VK_CSKY_None,
+    VK_CSKY_ADDR,
+    VK_CSKY_PCREL,
+    VK_CSKY_GOT,
+    VK_CSKY_GOTPC,
+    VK_CSKY_GOTOFF,
+    VK_CSKY_PLT,
+    VK_CSKY_TPOFF,
+    VK_CSKY_TLSGD,
+    VK_CSKY_Invalid
+  };
+
+private:
+  const VariantKind Kind;
+  const MCExpr *Expr;
+
+  explicit CSKYMCExpr(VariantKind Kind, const MCExpr *Expr)
+      : Kind(Kind), Expr(Expr) {}
+
+public:
+  static const CSKYMCExpr *create(const MCExpr *Expr, VariantKind Kind,
+                                  MCContext &Ctx);
+
+  // Returns the kind of this expression.
+  VariantKind getKind() const { return Kind; }
+
+  // Returns the child of this expression.
+  const MCExpr *getSubExpr() const { return Expr; }
+
+  void printImpl(raw_ostream &OS, const MCAsmInfo *MAI) const override;
+
+  bool evaluateAsRelocatableImpl(MCValue &Res, const MCAsmLayout *Layout,
+                                 const MCFixup *Fixup) const override;
+  void visitUsedExpr(MCStreamer &Streamer) const override;
+
+  MCFragment *findAssociatedFragment() const override {
+    return getSubExpr()->findAssociatedFragment();
+  }
+
+  void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override;
+
+  static bool classof(const MCExpr *E) {
+    return E->getKind() == MCExpr::Target;
+  }
+
+  static StringRef getVariantKindName(VariantKind Kind);
+};
+} // end namespace llvm
+
+#endif