X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FMC%2FMCObjectWriter.cpp;h=94d7cd6fd4f3ac424921ec31b827b876abdcf48e;hb=9c23685dd25370a9a255052e44fa609b8ce455c0;hp=18887397ab617eaa6f17685218b74b1b03e7130e;hpb=c25c90897781f116d5dbabab170bafcf65900fa7;p=oota-llvm.git

diff --git a/lib/MC/MCObjectWriter.cpp b/lib/MC/MCObjectWriter.cpp
index 18887397ab6..94d7cd6fd4f 100644
--- a/lib/MC/MCObjectWriter.cpp
+++ b/lib/MC/MCObjectWriter.cpp
@@ -17,40 +17,6 @@ using namespace llvm;
 MCObjectWriter::~MCObjectWriter() {
 }
 
-/// Utility function to encode a SLEB128 value.
-void MCObjectWriter::EncodeSLEB128(int64_t Value, raw_ostream &OS) {
-  bool More;
-  do {
-    uint8_t Byte = Value & 0x7f;
-    // NOTE: this assumes that this signed shift is an arithmetic right shift.
-    Value >>= 7;
-    More = !((((Value == 0 ) && ((Byte & 0x40) == 0)) ||
-              ((Value == -1) && ((Byte & 0x40) != 0))));
-    if (More)
-      Byte |= 0x80; // Mark this byte that that more bytes will follow.
-    OS << char(Byte);
-  } while (More);
-}
-
-/// Utility function to encode a ULEB128 value.
-void MCObjectWriter::EncodeULEB128(uint64_t Value, raw_ostream &OS,
-                                   unsigned Padding) {
-  do {
-    uint8_t Byte = Value & 0x7f;
-    Value >>= 7;
-    if (Value != 0 || Padding != 0)
-      Byte |= 0x80; // Mark this byte that that more bytes will follow.
-    OS << char(Byte);
-  } while (Value != 0);
-
-  // Pad with 0x80 and emit a null byte at the end.
-  if (Padding != 0) {
-    for (; Padding != 1; --Padding)
-      OS << '\x80';
-    OS << '\x00';
-  }
-}
-
 bool
 MCObjectWriter::IsSymbolRefDifferenceFullyResolved(const MCAssembler &Asm,
                                                    const MCSymbolRefExpr *A,
@@ -68,6 +34,8 @@ MCObjectWriter::IsSymbolRefDifferenceFullyResolved(const MCAssembler &Asm,
 
   const MCSymbolData &DataA = Asm.getSymbolData(SA);
   const MCSymbolData &DataB = Asm.getSymbolData(SB);
+  if(!DataA.getFragment() || !DataB.getFragment())
+    return false;
 
   return IsSymbolRefDifferenceFullyResolvedImpl(Asm, DataA,
                                                 *DataB.getFragment(),