Merge commit '100fbdd06be7590b23c4707a98cd605bdb519498' into merge_20130612

2 files changed, 12 insertions, 5 deletions

diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index f348843..cf827c5 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -405,7 +405,7 @@ Value *BitcodeReaderMDValueList::getValueFwdRef(unsigned Idx) {
   }
 
   // Create and return a placeholder, which will later be RAUW'd.
-  Value *V = MDNode::getTemporary(Context, ArrayRef<Value*>());
+  Value *V = MDNode::getTemporary(Context, None);
   MDValuePtrs[Idx] = V;
   return V;
 }
@@ -3010,7 +3010,7 @@ bool BitcodeReader::InitLazyStream() {
   Stream.init(*StreamFile);
 
   unsigned char buf[16];
-  if (Bytes->readBytes(0, 16, buf, NULL) == -1)
+  if (Bytes->readBytes(0, 16, buf) == -1)
     return Error("Bitcode stream must be at least 16 bytes in length");
 
   if (!isBitcode(buf, buf + 16))
diff --git a/lib/Bitcode/Reader/BitstreamReader.cpp b/lib/Bitcode/Reader/BitstreamReader.cpp
index 9dafe2a..1fd9abd 100644
--- a/lib/Bitcode/Reader/BitstreamReader.cpp
+++ b/lib/Bitcode/Reader/BitstreamReader.cpp
@@ -204,7 +204,16 @@ unsigned BitstreamCursor::readRecord(unsigned AbbrevID,
 
   const BitCodeAbbrev *Abbv = getAbbrev(AbbrevID);
 
-  for (unsigned i = 0, e = Abbv->getNumOperandInfos(); i != e; ++i) {
+  // Read the record code first.
+  assert(Abbv->getNumOperandInfos() != 0 && "no record code in abbreviation?");
+  const BitCodeAbbrevOp &CodeOp = Abbv->getOperandInfo(0);
+  if (CodeOp.isLiteral())
+    readAbbreviatedLiteral(CodeOp, Vals);
+  else
+    readAbbreviatedField(CodeOp, Vals);
+  unsigned Code = (unsigned)Vals.pop_back_val();
+
+  for (unsigned i = 1, e = Abbv->getNumOperandInfos(); i != e; ++i) {
     const BitCodeAbbrevOp &Op = Abbv->getOperandInfo(i);
     if (Op.isLiteral()) {
       readAbbreviatedLiteral(Op, Vals);
@@ -264,8 +273,6 @@ unsigned BitstreamCursor::readRecord(unsigned AbbrevID,
     JumpToBit(NewEnd);
   }
 
-  unsigned Code = (unsigned)Vals[0];
-  Vals.erase(Vals.begin());
   return Code;
 }