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| author | Yonghong Song <yhs@fb.com> | 2021-07-19 09:33:55 -0700 |
|---|---|---|
| committer | Yonghong Song <yhs@fb.com> | 2021-08-26 10:03:44 -0700 |
| commit | 30c288489ae51a3e0819241f367eeae6df2b09e7 (patch) | |
| tree | ac633c6960ad10e6463c338b71ce78924c498d19 /llvm/lib/Bitcode | |
| parent | be19aee4b26ea1e8672c61b1cfd520a5f8d9ba0e (diff) | |
| download | llvm-30c288489ae51a3e0819241f367eeae6df2b09e7.zip llvm-30c288489ae51a3e0819241f367eeae6df2b09e7.tar.gz llvm-30c288489ae51a3e0819241f367eeae6df2b09e7.tar.bz2 | |
[DebugInfo] generate btf_tag annotations for DIGlobalVariable
Generate btf_tag annotations for DIGlobalVariable.
A field "annotations" is introduced to DIGlobalVariable, and
annotations are represented as an DINodeArray, similar to
DIComposite elements. The following example illustrates how
annotations are encoded in IR:
distinct !DIGlobalVariable(..., annotations: !10)
!10 = !{!11, !12}
!11 = !{!"btf_tag", !"a"}
!12 = !{!"btf_tag", !"b"}
Differential Revision: https://reviews.llvm.org/D106619
Diffstat (limited to 'llvm/lib/Bitcode')
| -rw-r--r-- | llvm/lib/Bitcode/Reader/MetadataLoader.cpp | 12 | ||||
| -rw-r--r-- | llvm/lib/Bitcode/Writer/BitcodeWriter.cpp | 1 |
2 files changed, 10 insertions, 3 deletions
diff --git a/llvm/lib/Bitcode/Reader/MetadataLoader.cpp b/llvm/lib/Bitcode/Reader/MetadataLoader.cpp index 9a306fa..3fc0919 100644 --- a/llvm/lib/Bitcode/Reader/MetadataLoader.cpp +++ b/llvm/lib/Bitcode/Reader/MetadataLoader.cpp @@ -1873,13 +1873,18 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata( unsigned Version = Record[0] >> 1; if (Version == 2) { + Metadata *Annotations = nullptr; + if (Record.size() > 12) + Annotations = getMDOrNull(Record[12]); + MetadataList.assignValue( GET_OR_DISTINCT( DIGlobalVariable, (Context, getMDOrNull(Record[1]), getMDString(Record[2]), getMDString(Record[3]), getMDOrNull(Record[4]), Record[5], getDITypeRefOrNull(Record[6]), Record[7], Record[8], - getMDOrNull(Record[9]), getMDOrNull(Record[10]), Record[11])), + getMDOrNull(Record[9]), getMDOrNull(Record[10]), Record[11], + Annotations)), NextMetadataNo); NextMetadataNo++; @@ -1892,7 +1897,8 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata( getMDString(Record[2]), getMDString(Record[3]), getMDOrNull(Record[4]), Record[5], getDITypeRefOrNull(Record[6]), Record[7], Record[8], - getMDOrNull(Record[10]), nullptr, Record[11])), + getMDOrNull(Record[10]), nullptr, Record[11], + nullptr)), NextMetadataNo); NextMetadataNo++; @@ -1925,7 +1931,7 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata( (Context, getMDOrNull(Record[1]), getMDString(Record[2]), getMDString(Record[3]), getMDOrNull(Record[4]), Record[5], getDITypeRefOrNull(Record[6]), Record[7], Record[8], - getMDOrNull(Record[10]), nullptr, AlignInBits)); + getMDOrNull(Record[10]), nullptr, AlignInBits, nullptr)); DIGlobalVariableExpression *DGVE = nullptr; if (Attach || Expr) diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp index 19f518d..d012733 100644 --- a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp +++ b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp @@ -1962,6 +1962,7 @@ void ModuleBitcodeWriter::writeDIGlobalVariable( Record.push_back(VE.getMetadataOrNullID(N->getStaticDataMemberDeclaration())); Record.push_back(VE.getMetadataOrNullID(N->getTemplateParams())); Record.push_back(N->getAlignInBits()); + Record.push_back(VE.getMetadataOrNullID(N->getAnnotations().get())); Stream.EmitRecord(bitc::METADATA_GLOBAL_VAR, Record, Abbrev); Record.clear(); |