diff options
Diffstat (limited to 'lib/Bitcode')
| -rw-r--r-- | lib/Bitcode/Writer/BitcodeWriter.cpp | 42 |
1 files changed, 30 insertions, 12 deletions
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp index a3c3c6bc9c..e7d5482aea 100644 --- a/lib/Bitcode/Writer/BitcodeWriter.cpp +++ b/lib/Bitcode/Writer/BitcodeWriter.cpp @@ -33,8 +33,8 @@ enum { // VALUE_SYMTAB_BLOCK abbrev id's. VST_ENTRY_8_ABBREV = bitc::FIRST_APPLICATION_ABBREV, VST_ENTRY_7_ABBREV, - VST_BBENTRY_7_ABBREV - + VST_ENTRY_6_ABBREV, + VST_BBENTRY_6_ABBREV }; @@ -712,7 +712,7 @@ static void WriteValueSymbolTable(const ValueSymbolTable &VST, const ValueEnumerator &VE, BitstreamWriter &Stream) { if (VST.empty()) return; - Stream.EnterSubblock(bitc::VALUE_SYMTAB_BLOCK_ID, 3); + Stream.EnterSubblock(bitc::VALUE_SYMTAB_BLOCK_ID, 4); // FIXME: Set up the abbrev, we know how many values there are! // FIXME: We know if the type names can use 7-bit ascii. @@ -725,12 +725,16 @@ static void WriteValueSymbolTable(const ValueSymbolTable &VST, // Figure out the encoding to use for the name. bool is7Bit = true; - for (unsigned i = 0, e = Name.getKeyLength(); i != e; ++i) - if ((unsigned char)Name.getKeyData()[i] & 128) { + bool isChar6 = true; + for (const char *C = Name.getKeyData(), *E = C+Name.getKeyLength(); + C != E; ++C) { + if (isChar6) + isChar6 = BitCodeAbbrevOp::isChar6(*C); + if ((unsigned char)*C & 128) { is7Bit = false; - break; + break; // don't bother scanning the rest. } - + } unsigned AbbrevToUse = VST_ENTRY_8_ABBREV; @@ -739,10 +743,14 @@ static void WriteValueSymbolTable(const ValueSymbolTable &VST, unsigned Code; if (isa<BasicBlock>(SI->getValue())) { Code = bitc::VST_CODE_BBENTRY; - if (is7Bit) AbbrevToUse = VST_BBENTRY_7_ABBREV; + if (isChar6) + AbbrevToUse = VST_BBENTRY_6_ABBREV; } else { Code = bitc::VST_CODE_ENTRY; - if (is7Bit) AbbrevToUse = VST_ENTRY_7_ABBREV; + if (isChar6) + AbbrevToUse = VST_ENTRY_6_ABBREV; + else if (is7Bit) + AbbrevToUse = VST_ENTRY_7_ABBREV; } NameVals.push_back(VE.getValueID(SI->getValue())); @@ -910,14 +918,24 @@ static void WriteBlockInfo(BitstreamWriter &Stream) { Abbv) != VST_ENTRY_7_ABBREV) assert(0 && "Unexpected abbrev ordering!"); } - { // 7-bit fixed width VST_BBENTRY strings. + { // 6-bit char6 VST_ENTRY strings. + BitCodeAbbrev *Abbv = new BitCodeAbbrev(); + Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_ENTRY)); + Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); + Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); + Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6)); + if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID, + Abbv) != VST_ENTRY_6_ABBREV) + assert(0 && "Unexpected abbrev ordering!"); + } + { // 6-bit char6 VST_BBENTRY strings. BitCodeAbbrev *Abbv = new BitCodeAbbrev(); Abbv->Add(BitCodeAbbrevOp(bitc::VST_CODE_BBENTRY)); Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array)); - Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 7)); + Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Char6)); if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID, - Abbv) != VST_BBENTRY_7_ABBREV) + Abbv) != VST_BBENTRY_6_ABBREV) assert(0 && "Unexpected abbrev ordering!"); } |