Merge with LLVM upstream r160668 (Jul 24th 2012)

Conflicts:
	include/llvm/Support/ELF.h
	lib/CodeGen/AsmPrinter/AsmPrinter.cpp
	lib/Support/Memory.cpp
	lib/Transforms/Instrumentation/AddressSanitizer.cpp

Change-Id: Iddd658cf2eadc7165b2805b446d31af2c5c9917f

1 files changed, 43 insertions, 1 deletions

diff --git a/include/llvm/MC/MCAssembler.h b/include/llvm/MC/MCAssembler.h
index 498bfe1..ace09a4 100644
--- a/include/llvm/MC/MCAssembler.h
+++ b/include/llvm/MC/MCAssembler.h
@@ -138,7 +138,7 @@ public:
 
   void addFixup(MCFixup Fixup) {
     // Enforce invariant that fixups are in offset order.
-    assert((Fixups.empty() || Fixup.getOffset() > Fixups.back().getOffset()) &&
+    assert((Fixups.empty() || Fixup.getOffset() >= Fixups.back().getOffset()) &&
            "Fixups must be added in order!");
     Fixups.push_back(Fixup);
   }
@@ -659,6 +659,16 @@ struct IndirectSymbolData {
   MCSectionData *SectionData;
 };
 
+// FIXME: Ditto this. Purely so the Streamer and the ObjectWriter can talk
+// to one another.
+struct DataRegionData {
+  // This enum should be kept in sync w/ the mach-o definition in
+  // llvm/Object/MachOFormat.h.
+  enum KindTy { Data = 1, JumpTable8, JumpTable16, JumpTable32 } Kind;
+  MCSymbol *Start;
+  MCSymbol *End;
+};
+
 class MCAssembler {
   friend class MCAsmLayout;
 
@@ -676,6 +686,10 @@ public:
     const_indirect_symbol_iterator;
   typedef std::vector<IndirectSymbolData>::iterator indirect_symbol_iterator;
 
+  typedef std::vector<DataRegionData>::const_iterator
+    const_data_region_iterator;
+  typedef std::vector<DataRegionData>::iterator data_region_iterator;
+
 private:
   MCAssembler(const MCAssembler&);    // DO NOT IMPLEMENT
   void operator=(const MCAssembler&); // DO NOT IMPLEMENT
@@ -706,6 +720,7 @@ private:
 
   std::vector<IndirectSymbolData> IndirectSymbols;
 
+  std::vector<DataRegionData> DataRegions;
   /// The set of function symbols for which a .thumb_func directive has
   /// been seen.
   //
@@ -894,6 +909,33 @@ public:
   size_t indirect_symbol_size() const { return IndirectSymbols.size(); }
 
   /// @}
+  /// @name Data Region List Access
+  /// @{
+
+  // FIXME: This is a total hack, this should not be here. Once things are
+  // factored so that the streamer has direct access to the .o writer, it can
+  // disappear.
+  std::vector<DataRegionData> &getDataRegions() {
+    return DataRegions;
+  }
+
+  data_region_iterator data_region_begin() {
+    return DataRegions.begin();
+  }
+  const_data_region_iterator data_region_begin() const {
+    return DataRegions.begin();
+  }
+
+  data_region_iterator data_region_end() {
+    return DataRegions.end();
+  }
+  const_data_region_iterator data_region_end() const {
+    return DataRegions.end();
+  }
+
+  size_t data_region_size() const { return DataRegions.size(); }
+
+  /// @}
   /// @name Backend Data Access
   /// @{