From 30c288489ae51a3e0819241f367eeae6df2b09e7 Mon Sep 17 00:00:00 2001 From: Yonghong Song Date: Mon, 19 Jul 2021 09:33:55 -0700 Subject: [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 --- llvm/lib/Bitcode/Reader/MetadataLoader.cpp | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) (limited to 'llvm/lib/Bitcode/Reader/MetadataLoader.cpp') 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) -- cgit v1.1