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Make a major API change to BitstreamReader: split all the reading

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state out of the BitstreamReader class into a BitstreamCursor class.
Doing this allows the client to have multiple cursors into the same
file, each with potentially different live block stacks and
abbreviation records.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70157 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-04-26 20:59:02 +00:00
parent 3485d25a0e
commit 962dde3cef
6 changed files with 155 additions and 122 deletions
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6
tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
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@@ -262,7 +262,7 @@ static bool Error(const std::string &Err) {
}
/// ParseBlock - Read a block, updating statistics, etc.
static bool ParseBlock(BitstreamReader &Stream, unsigned IndentLevel) {
static bool ParseBlock(BitstreamCursor &Stream, unsigned IndentLevel) {
std::string Indent(IndentLevel*2, ' ');
uint64_t BlockBitStart = Stream.GetCurrentBitNo();
unsigned BlockID = Stream.ReadSubBlockID();
@@ -420,8 +420,8 @@ static int AnalyzeBitcode() {
if (SkipBitcodeWrapperHeader(BufPtr, EndBufPtr))
return Error("Invalid bitcode wrapper header");
BitstreamReader Stream(BufPtr, EndBufPtr);
BitstreamReader StreamFile(BufPtr, EndBufPtr);
BitstreamCursor Stream(StreamFile);
// Read the stream signature.
char Signature[6];