1 files changed, 102 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/Target/ARM/MCTargetDesc/ARMMCExpr.h b/contrib/llvm-project/llvm/lib/Target/ARM/MCTargetDesc/ARMMCExpr.h
new file mode 100644
index 000000000000..5f32b37a8b60
--- /dev/null
+++ b/contrib/llvm-project/llvm/lib/Target/ARM/MCTargetDesc/ARMMCExpr.h
@@ -0,0 +1,102 @@
+//===-- ARMMCExpr.h - ARM 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_ARM_MCTARGETDESC_ARMMCEXPR_H
+#define LLVM_LIB_TARGET_ARM_MCTARGETDESC_ARMMCEXPR_H
+
+#include "llvm/MC/MCExpr.h"
+
+namespace llvm {
+
+class ARMMCExpr : public MCTargetExpr {
+public:
+  enum VariantKind {
+    VK_ARM_None,
+    VK_ARM_HI16, // The R_ARM_MOVT_ABS relocation (:upper16: in the .s file)
+    VK_ARM_LO16, // The R_ARM_MOVW_ABS_NC relocation (:lower16: in the .s file)
+
+    VK_ARM_HI_8_15, // The R_ARM_THM_ALU_ABS_G3    relocation (:upper8_15: in
+                    // the .s file)
+    VK_ARM_HI_0_7,  // The R_ARM_THM_ALU_ABS_G2_NC relocation (:upper0_8: in the
+                    // .s file)
+    VK_ARM_LO_8_15, // The R_ARM_THM_ALU_ABS_G1_NC relocation (:lower8_15: in
+                    // the .s file)
+    VK_ARM_LO_0_7,  // The R_ARM_THM_ALU_ABS_G0_NC relocation (:lower0_7: in the
+                    // .s file)
+  };
+
+private:
+  const VariantKind Kind;
+  const MCExpr *Expr;
+
+  explicit ARMMCExpr(VariantKind Kind, const MCExpr *Expr)
+      : Kind(Kind), Expr(Expr) {}
+
+public:
+  /// @name Construction
+  /// @{
+
+  static const ARMMCExpr *create(VariantKind Kind, const MCExpr *Expr,
+                                      MCContext &Ctx);
+
+  static const ARMMCExpr *createUpper16(const MCExpr *Expr, MCContext &Ctx) {
+    return create(VK_ARM_HI16, Expr, Ctx);
+  }
+
+  static const ARMMCExpr *createLower16(const MCExpr *Expr, MCContext &Ctx) {
+    return create(VK_ARM_LO16, Expr, Ctx);
+  }
+
+  static const ARMMCExpr *createUpper8_15(const MCExpr *Expr, MCContext &Ctx) {
+    return create(VK_ARM_HI_8_15, Expr, Ctx);
+  }
+
+  static const ARMMCExpr *createUpper0_7(const MCExpr *Expr, MCContext &Ctx) {
+    return create(VK_ARM_HI_0_7, Expr, Ctx);
+  }
+
+  static const ARMMCExpr *createLower8_15(const MCExpr *Expr, MCContext &Ctx) {
+    return create(VK_ARM_LO_8_15, Expr, Ctx);
+  }
+
+  static const ARMMCExpr *createLower0_7(const MCExpr *Expr, MCContext &Ctx) {
+    return create(VK_ARM_LO_0_7, 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 MCAsmInfo *MAI) const override;
+  bool evaluateAsRelocatableImpl(MCValue &Res, const MCAssembler *Asm,
+                                 const MCFixup *Fixup) const override {
+    return false;
+  }
+  void visitUsedExpr(MCStreamer &Streamer) const override;
+  MCFragment *findAssociatedFragment() const override {
+    return getSubExpr()->findAssociatedFragment();
+  }
+
+  // There are no TLS ARMMCExprs at the moment.
+  void fixELFSymbolsInTLSFixups(MCAssembler &Asm) const override {}
+
+  static bool classof(const MCExpr *E) {
+    return E->getKind() == MCExpr::Target;
+  }
+};
+} // end namespace llvm
+
+#endif