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-rw-r--r--include/llvm/Bitcode/BitstreamReader.h15
1 files changed, 11 insertions, 4 deletions
diff --git a/include/llvm/Bitcode/BitstreamReader.h b/include/llvm/Bitcode/BitstreamReader.h
index 3e8d880da4..3e299e9e4c 100644
--- a/include/llvm/Bitcode/BitstreamReader.h
+++ b/include/llvm/Bitcode/BitstreamReader.h
@@ -159,7 +159,6 @@ struct BitstreamEntry {
}
};
-
/// BitstreamCursor - This represents a position within a bitcode file. There
/// may be multiple independent cursors reading within one bitstream, each
/// maintaining their own local state.
@@ -271,7 +270,14 @@ public:
/// Flags that modify the behavior of advance().
enum {
- AF_DontPopBlockAtEnd = 1
+ /// AF_DontPopBlockAtEnd - If this flag is used, the advance() method does
+ /// not automatically pop the block scope when the end of a block is
+ /// reached.
+ AF_DontPopBlockAtEnd = 1,
+
+ /// AF_DontAutoprocessAbbrevs - If this flag is used, abbrev entries are
+ /// returned just like normal records.
+ AF_DontAutoprocessAbbrevs = 2
};
/// advance - Advance the current bitstream, returning the next entry in the
@@ -289,7 +295,8 @@ public:
if (Code == bitc::ENTER_SUBBLOCK)
return BitstreamEntry::getSubBlock(ReadSubBlockID());
- if (Code == bitc::DEFINE_ABBREV) {
+ if (Code == bitc::DEFINE_ABBREV &&
+ !(Flags & AF_DontAutoprocessAbbrevs)) {
// We read and accumulate abbrev's, the client can't do anything with
// them anyway.
ReadAbbrevRecord();
@@ -483,7 +490,7 @@ private:
BlockScope.pop_back();
}
- //===--------------------------------------------------------------------===//
+ //===--------------------------------------------------------------------===//
// Record Processing
//===--------------------------------------------------------------------===//