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stub out creation of BLOCKINFO_BLOCK

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36749 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-05-04 18:26:27 +00:00
parent a727d5502c
commit 07faafc8f9
1 changed files with 25 additions and 0 deletions
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25
lib/Bitcode/Writer/BitcodeWriter.cpp
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@ -858,6 +858,28 @@ static void WriteModule(const Module *M, BitstreamWriter &Stream) {
Stream.ExitBlock();
}
// Emit blockinfo, which defines the standard abbreviations etc.
static void WriteBlockInfo(BitstreamWriter &Stream) {
// We only want to emit block info records for blocks that have multiple
// instances: CONSTANTS_BLOCK, FUNCTION_BLOCK and VALUE_SYMTAB_BLOCK. Other
// blocks can defined their abbrevs inline.
Stream.EnterSubblock(bitc::BLOCKINFO_BLOCK_ID, 2);
#if 0
// Configure TYPE_SYMTAB_BLOCK's.
// Add an abbrev for VST_ENTRY where the characters each fit in 7 bits.
BitCodeAbbrev *Abbv = new BitCodeAbbrev();
Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_ENTRY));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8); // Value ID
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::FixedWidth, 3)); // Linkage.
xxx = Stream.EmitAbbrev(Abbv);
#endif
Stream.ExitBlock();
}
/// WriteBitcodeToFile - Write the specified module to the specified output
/// stream.
void llvm::WriteBitcodeToFile(const Module *M, std::ostream &Out) {
@ -874,6 +896,9 @@ void llvm::WriteBitcodeToFile(const Module *M, std::ostream &Out) {
Stream.Emit(0xE, 4);
Stream.Emit(0xD, 4);
// Emit blockinfo, which defines the standard abbreviations etc.
WriteBlockInfo(Stream);
// Emit the module.
WriteModule(M, Stream);