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| author | Chris Lattner <sabre@nondot.org> | 2007-04-23 18:58:34 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2007-04-23 18:58:34 +0000 |
| commit | d127c1b5f3785a4a957ccf70b79a96adfc223259 (patch) | |
| tree | 0a99ba263ce4011dc6be6c171136ea06868f49ee /lib | |
| parent | aea20124338b335ea6ff2730924c223f0db95e04 (diff) | |
| download | external_llvm-d127c1b5f3785a4a957ccf70b79a96adfc223259.zip external_llvm-d127c1b5f3785a4a957ccf70b79a96adfc223259.tar.gz external_llvm-d127c1b5f3785a4a957ccf70b79a96adfc223259.tar.bz2 | |
implement reading of abbrevs, and writing of abbreviated global varrs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36367 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Bitcode/Reader/BitcodeReader.cpp | 9 | ||||
| -rw-r--r-- | lib/Bitcode/Writer/BitcodeWriter.cpp | 10 |
2 files changed, 13 insertions, 6 deletions
diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp index f464e33..ba4ba8db 100644 --- a/lib/Bitcode/Reader/BitcodeReader.cpp +++ b/lib/Bitcode/Reader/BitcodeReader.cpp @@ -94,7 +94,8 @@ bool BitcodeReader::ParseTypeTable(BitstreamReader &Stream) { } if (Code == bitc::DEFINE_ABBREV) { - assert(0 && "Abbrevs not implemented yet!"); + Stream.ReadAbbrevRecord(); + continue; } // Read a record. @@ -231,7 +232,8 @@ bool BitcodeReader::ParseTypeSymbolTable(BitstreamReader &Stream) { } if (Code == bitc::DEFINE_ABBREV) { - assert(0 && "Abbrevs not implemented yet!"); + Stream.ReadAbbrevRecord(); + continue; } // Read a record. @@ -294,7 +296,8 @@ bool BitcodeReader::ParseModule(BitstreamReader &Stream, } if (Code == bitc::DEFINE_ABBREV) { - assert(0 && "Abbrevs not implemented yet!"); + Stream.ReadAbbrevRecord(); + continue; } // Read a record. diff --git a/lib/Bitcode/Writer/BitcodeWriter.cpp b/lib/Bitcode/Writer/BitcodeWriter.cpp index d78ea29..633036e 100644 --- a/lib/Bitcode/Writer/BitcodeWriter.cpp +++ b/lib/Bitcode/Writer/BitcodeWriter.cpp @@ -204,9 +204,11 @@ static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE, // compute the maximum alignment value. std::map<std::string, unsigned> SectionMap; unsigned MaxAlignment = 0; + unsigned MaxGlobalType = 0; for (Module::const_global_iterator GV = M->global_begin(),E = M->global_end(); GV != E; ++GV) { MaxAlignment = std::max(MaxAlignment, GV->getAlignment()); + MaxGlobalType = std::max(MaxGlobalType, VE.getTypeID(GV->getType())); if (!GV->hasSection()) continue; // Give section names unique ID's. @@ -229,10 +231,12 @@ static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE, // Emit abbrev for globals, now that we know # sections and max alignment. unsigned SimpleGVarAbbrev = 0; - if (!M->global_empty() && 0) { + if (!M->global_empty()) { // Add an abbrev for common globals with no visibility or thread localness. BitCodeAbbrev *Abbv = new BitCodeAbbrev(); Abbv->Add(BitCodeAbbrevOp(bitc::MODULE_CODE_GLOBALVAR)); + Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::FixedWidth, + Log2_32_Ceil(MaxGlobalType+1))); Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::FixedWidth, 1)); // Constant. Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Initializer. Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::FixedWidth, 3)); // Linkage. @@ -241,7 +245,7 @@ static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE, else { unsigned MaxEncAlignment = Log2_32(MaxAlignment)+1; Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::FixedWidth, - Log2_32_Ceil(MaxEncAlignment))); + Log2_32_Ceil(MaxEncAlignment+1))); } if (SectionMap.empty()) // Section. Abbv->Add(BitCodeAbbrevOp(0)); @@ -300,7 +304,7 @@ static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE, /// WriteModule - Emit the specified module to the bitstream. static void WriteModule(const Module *M, BitstreamWriter &Stream) { - Stream.EnterSubblock(bitc::MODULE_BLOCK_ID, 2); + Stream.EnterSubblock(bitc::MODULE_BLOCK_ID, 3); // Emit the version number if it is non-zero. if (CurVersion) { |