1 files changed, 78 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/MCTargetDesc/PPCMCExpr.h b/lib/Target/PowerPC/MCTargetDesc/PPCMCExpr.h
new file mode 100644
index 0000000..a080537
--- /dev/null
+++ b/lib/Target/PowerPC/MCTargetDesc/PPCMCExpr.h
@@ -0,0 +1,78 @@
+//===-- PPCMCExpr.h - PPC specific MC expression classes --------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef PPCMCEXPR_H
+#define PPCMCEXPR_H
+
+#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCValue.h"
+#include "llvm/MC/MCAsmLayout.h"
+
+namespace llvm {
+
+class PPCMCExpr : public MCTargetExpr {
+public:
+  enum VariantKind {
+    VK_PPC_None,
+    VK_PPC_HA16,
+    VK_PPC_LO16
+  };
+
+private:
+  const VariantKind Kind;
+  const MCExpr *Expr;
+
+  explicit PPCMCExpr(VariantKind _Kind, const MCExpr *_Expr)
+    : Kind(_Kind), Expr(_Expr) {}
+
+public:
+  /// @name Construction
+  /// @{
+
+  static const PPCMCExpr *Create(VariantKind Kind, const MCExpr *Expr,
+                                      MCContext &Ctx);
+
+  static const PPCMCExpr *CreateHa16(const MCExpr *Expr, MCContext &Ctx) {
+    return Create(VK_PPC_HA16, Expr, Ctx);
+  }
+
+  static const PPCMCExpr *CreateLo16(const MCExpr *Expr, MCContext &Ctx) {
+    return Create(VK_PPC_LO16, Expr, Ctx);
+  }
+
+  /// @}
+  /// @name Accessors
+  /// @{
+
+  /// getOpcode - Get the kind of this expression.
+  VariantKind getKind() const { return Kind; }
+
+  /// getSubExpr - Get the child of this expression.
+  const MCExpr *getSubExpr() const { return Expr; }
+
+  /// @}
+
+  void PrintImpl(raw_ostream &OS) const;
+  bool EvaluateAsRelocatableImpl(MCValue &Res,
+                                 const MCAsmLayout *Layout) const;
+  void AddValueSymbols(MCAssembler *) const;
+  const MCSection *FindAssociatedSection() const {
+    return getSubExpr()->FindAssociatedSection();
+  }
+
+  // There are no TLS PPCMCExprs at the moment.
+  void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const {}
+
+  static bool classof(const MCExpr *E) {
+    return E->getKind() == MCExpr::Target;
+  }
+};
+} // end namespace llvm
+
+#endif