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give bitstreamreader an API to ignore names for blocks/records,

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only llvm-bcanalyzer wants this info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70239 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-04-27 20:04:08 +00:00
parent 82fd3f3d3a
commit 0370cc6399
2 changed files with 17 additions and 1 deletions
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17
include/llvm/Bitcode/BitstreamReader.h
View File

@ -41,11 +41,19 @@ private:
std::vector<BlockInfo> BlockInfoRecords;
/// IgnoreBlockInfoNames - This is set to true if we don't care about the
/// block/record name information in the BlockInfo block. Only llvm-bcanalyzer
/// uses this.
bool IgnoreBlockInfoNames;
BitstreamReader(const BitstreamReader&); // NOT IMPLEMENTED
void operator=(const BitstreamReader&); // NOT IMPLEMENTED
public:
BitstreamReader() : FirstChar(0), LastChar(0) {
BitstreamReader() : FirstChar(0), LastChar(0), IgnoreBlockInfoNames(true) {
}
BitstreamReader(const unsigned char *Start, const unsigned char *End) {
IgnoreBlockInfoNames = true;
init(Start, End);
}
@ -70,6 +78,11 @@ public:
const unsigned char *getFirstChar() const { return FirstChar; }
const unsigned char *getLastChar() const { return LastChar; }
/// CollectBlockInfoNames - This is called by clients that want block/record
/// name information.
void CollectBlockInfoNames() { IgnoreBlockInfoNames = false; }
bool isIgnoringBlockInfoNames() { return IgnoreBlockInfoNames; }
//===--------------------------------------------------------------------===//
// Block Manipulation
//===--------------------------------------------------------------------===//
@ -598,6 +611,7 @@ public:
break;
case bitc::BLOCKINFO_CODE_BLOCKNAME: {
if (!CurBlockInfo) return true;
if (BitStream->isIgnoringBlockInfoNames()) break; // Ignore name.
std::string Name;
for (unsigned i = 0, e = Record.size(); i != e; ++i)
Name += (char)Record[i];
@ -606,6 +620,7 @@ public:
}
case bitc::BLOCKINFO_CODE_SETRECORDNAME: {
if (!CurBlockInfo) return true;
if (BitStream->isIgnoringBlockInfoNames()) break; // Ignore name.
std::string Name;
for (unsigned i = 1, e = Record.size(); i != e; ++i)
Name += (char)Record[i];

1
tools/llvm-bcanalyzer/llvm-bcanalyzer.cpp
View File

@ -464,6 +464,7 @@ static int AnalyzeBitcode() {
BitstreamReader StreamFile(BufPtr, EndBufPtr);
BitstreamCursor Stream(StreamFile);
StreamFile.CollectBlockInfoNames();
// Read the stream signature.
char Signature[6];