1 files changed, 52 insertions, 0 deletions
diff --git a/include/llvm/MC/MCObjectFormat.h b/include/llvm/MC/MCObjectFormat.h
new file mode 100644
index 0000000..80b7295
--- /dev/null
+++ b/include/llvm/MC/MCObjectFormat.h
@@ -0,0 +1,52 @@
+//===-- llvm/MC/MCObjectFormat.h - Object Format Info -----------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_MC_MCOBJECTFORMAT_H
+#define LLVM_MC_MCOBJECTFORMAT_H
+
+namespace llvm {
+class MCSymbol;
+
+class MCObjectFormat {
+public:
+  /// isAbsolute - Check if A - B is an absolute value
+  ///
+  /// \param InSet - True if this expression is in a set. For example:
+  ///   a:
+  ///   ...
+  ///   b:
+  ///   tmp = a - b
+  ///       .long tmp
+  /// \param A - LHS
+  /// \param B - RHS
+  virtual bool isAbsolute(bool InSet, const MCSymbol &A,
+                          const MCSymbol &B) const = 0;
+};
+
+class MCELFObjectFormat : public MCObjectFormat {
+public:
+  virtual bool isAbsolute(bool InSet, const MCSymbol &A,
+                          const MCSymbol &B) const;
+};
+
+class MCMachOObjectFormat : public MCObjectFormat {
+public:
+  virtual bool isAbsolute(bool InSet, const MCSymbol &A,
+                          const MCSymbol &B) const;
+};
+
+class MCCOFFObjectFormat : public MCObjectFormat {
+public:
+  virtual bool isAbsolute(bool InSet, const MCSymbol &A,
+                          const MCSymbol &B) const;
+};
+
+}  // End llvm namespace
+
+#endif