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Diffstat (limited to 'lib/Bitcode')
-rw-r--r--lib/Bitcode/Reader/BitcodeReader.cpp28
-rw-r--r--lib/Bitcode/Writer/BitcodeWriter.cpp75
2 files changed, 51 insertions, 52 deletions
diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index 737e35f8f6..23d632a330 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -182,7 +182,7 @@ const Type *BitcodeReader::getTypeByID(unsigned ID, bool isTypeTable) {
//===----------------------------------------------------------------------===//
bool BitcodeReader::ParseParamAttrBlock() {
- if (Stream.EnterSubBlock())
+ if (Stream.EnterSubBlock(bitc::PARAMATTR_BLOCK_ID))
return Error("Malformed block record");
if (!ParamAttrs.empty())
@@ -239,7 +239,7 @@ bool BitcodeReader::ParseParamAttrBlock() {
bool BitcodeReader::ParseTypeTable() {
- if (Stream.EnterSubBlock())
+ if (Stream.EnterSubBlock(bitc::TYPE_BLOCK_ID))
return Error("Malformed block record");
if (!TypeList.empty())
@@ -378,7 +378,7 @@ bool BitcodeReader::ParseTypeTable() {
bool BitcodeReader::ParseTypeSymbolTable() {
- if (Stream.EnterSubBlock())
+ if (Stream.EnterSubBlock(bitc::TYPE_SYMTAB_BLOCK_ID))
return Error("Malformed block record");
SmallVector<uint64_t, 64> Record;
@@ -426,7 +426,7 @@ bool BitcodeReader::ParseTypeSymbolTable() {
}
bool BitcodeReader::ParseValueSymbolTable() {
- if (Stream.EnterSubBlock())
+ if (Stream.EnterSubBlock(bitc::VALUE_SYMTAB_BLOCK_ID))
return Error("Malformed block record");
SmallVector<uint64_t, 64> Record;
@@ -536,7 +536,7 @@ bool BitcodeReader::ResolveGlobalAndAliasInits() {
bool BitcodeReader::ParseConstants() {
- if (Stream.EnterSubBlock())
+ if (Stream.EnterSubBlock(bitc::CONSTANTS_BLOCK_ID))
return Error("Malformed block record");
SmallVector<uint64_t, 64> Record;
@@ -768,7 +768,7 @@ bool BitcodeReader::ParseModule(const std::string &ModuleID) {
if (TheModule)
return Error("Multiple MODULE_BLOCKs in same stream");
- if (Stream.EnterSubBlock())
+ if (Stream.EnterSubBlock(bitc::MODULE_BLOCK_ID))
return Error("Malformed block record");
// Otherwise, create the module.
@@ -1022,11 +1022,19 @@ bool BitcodeReader::ParseBitcode() {
unsigned BlockID = Stream.ReadSubBlockID();
// We only know the MODULE subblock ID.
- if (BlockID == bitc::MODULE_BLOCK_ID) {
+ switch (BlockID) {
+ case bitc::BLOCKINFO_BLOCK_ID:
+ if (Stream.ReadBlockInfoBlock())
+ return Error("Malformed BlockInfoBlock");
+ break;
+ case bitc::MODULE_BLOCK_ID:
if (ParseModule(Buffer->getBufferIdentifier()))
return true;
- } else if (Stream.SkipBlock()) {
- return Error("Malformed block record");
+ break;
+ default:
+ if (Stream.SkipBlock())
+ return Error("Malformed block record");
+ break;
}
}
@@ -1072,7 +1080,7 @@ Module *BitcodeReader::materializeModule(std::string *ErrInfo) {
/// ParseFunctionBody - Lazily parse the specified function body block.
bool BitcodeReader::ParseFunctionBody(Function *F) {
- if (Stream.EnterSubBlock())
+ if (Stream.EnterSubBlock(bitc::FUNCTION_BLOCK_ID))
return Error("Malformed block record");
unsigned ModuleValueListSize = ValueList.size();
diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp
index 6ee3a4a347..35e75da303 100644
--- a/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -714,36 +714,6 @@ static void WriteValueSymbolTable(const ValueSymbolTable &VST,
if (VST.empty()) return;
Stream.EnterSubblock(bitc::VALUE_SYMTAB_BLOCK_ID, 3);
- { // 8-bit fixed-width VST_ENTRY/VST_BBENTRY strings.
- BitCodeAbbrev *Abbv = new BitCodeAbbrev();
- Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3));
- Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8));
- Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
- Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8));
- if (Stream.EmitAbbrev(Abbv) != VST_ENTRY_8_ABBREV)
- assert(0 && "Unexpected abbrev ordering!");
- }
-
- { // 7-bit fixed width 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::Fixed, 7));
- if (Stream.EmitAbbrev(Abbv) != VST_ENTRY_7_ABBREV)
- assert(0 && "Unexpected abbrev ordering!");
- }
- { // 7-bit fixed width 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));
- if (Stream.EmitAbbrev(Abbv) != VST_BBENTRY_7_ABBREV)
- assert(0 && "Unexpected abbrev ordering!");
- }
-
-
// FIXME: Set up the abbrev, we know how many values there are!
// FIXME: We know if the type names can use 7-bit ascii.
SmallVector<unsigned, 64> NameVals;
@@ -909,19 +879,40 @@ 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::Fixed, 3)); // Linkage.
+ Stream.EnterBlockInfoBlock(2);
+
+ { // 8-bit fixed-width VST_ENTRY/VST_BBENTRY strings.
+ BitCodeAbbrev *Abbv = new BitCodeAbbrev();
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
+ Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 8));
+ if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID,
+ Abbv) != VST_ENTRY_8_ABBREV)
+ assert(0 && "Unexpected abbrev ordering!");
+ }
+
+ { // 7-bit fixed width 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::Fixed, 7));
+ if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID,
+ Abbv) != VST_ENTRY_7_ABBREV)
+ assert(0 && "Unexpected abbrev ordering!");
+ }
+ { // 7-bit fixed width 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));
+ if (Stream.EmitBlockInfoAbbrev(bitc::VALUE_SYMTAB_BLOCK_ID,
+ Abbv) != VST_BBENTRY_7_ABBREV)
+ assert(0 && "Unexpected abbrev ordering!");
+ }
- xxx = Stream.EmitAbbrev(Abbv);
-#endif
Stream.ExitBlock();
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-05-01 23:01:13 +0000