Update LLVM for 3.5 rebase (r209712).
Change-Id: I149556c940fb7dc92d075273c87ff584f400941f
diff --git a/lib/CodeGen/AsmPrinter/AddressPool.h b/lib/CodeGen/AsmPrinter/AddressPool.h
new file mode 100644
index 0000000..42757d7
--- /dev/null
+++ b/lib/CodeGen/AsmPrinter/AddressPool.h
@@ -0,0 +1,52 @@
+//===-- llvm/CodeGen/AddressPool.h - Dwarf Debug Framework -----*- C++ -*--===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CODEGEN_ASMPRINTER_ADDRESSPOOL_H__
+#define CODEGEN_ASMPRINTER_ADDRESSPOOL_H__
+
+#include "llvm/ADT/DenseMap.h"
+
+namespace llvm {
+class MCSection;
+class MCSymbol;
+class AsmPrinter;
+// Collection of addresses for this unit and assorted labels.
+// A Symbol->unsigned mapping of addresses used by indirect
+// references.
+class AddressPool {
+ struct AddressPoolEntry {
+ unsigned Number;
+ bool TLS;
+ AddressPoolEntry(unsigned Number, bool TLS) : Number(Number), TLS(TLS) {}
+ };
+ DenseMap<const MCSymbol *, AddressPoolEntry> Pool;
+
+ /// Record whether the AddressPool has been queried for an address index since
+ /// the last "resetUsedFlag" call. Used to implement type unit fallback - a
+ /// type that references addresses cannot be placed in a type unit when using
+ /// fission.
+ bool HasBeenUsed;
+
+public:
+ AddressPool() : HasBeenUsed(false) {}
+
+ /// \brief Returns the index into the address pool with the given
+ /// label/symbol.
+ unsigned getIndex(const MCSymbol *Sym, bool TLS = false);
+
+ void emit(AsmPrinter &Asm, const MCSection *AddrSection);
+
+ bool isEmpty() { return Pool.empty(); }
+
+ bool hasBeenUsed() const { return HasBeenUsed; }
+
+ void resetUsedFlag() { HasBeenUsed = false; }
+};
+}
+#endif