EmitZerofill should take a 64-bit size or else it's chopping off large zero-filled global. rdar://11729134

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159023 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCNullStreamer.cpp b/lib/MC/MCNullStreamer.cpp
index c9e2c56..4c17d91 100644
--- a/lib/MC/MCNullStreamer.cpp
+++ b/lib/MC/MCNullStreamer.cpp
@@ -63,7 +63,7 @@
     virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
                                        unsigned ByteAlignment) {}
     virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
-                              unsigned Size = 0, unsigned ByteAlignment = 0) {}
+                              uint64_t Size = 0, unsigned ByteAlignment = 0) {}
     virtual void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
                                 uint64_t Size, unsigned ByteAlignment) {}
     virtual void EmitBytes(StringRef Data, unsigned AddrSpace) {}