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| author | Yonghong Song <yhs@fb.com> | 2021-07-19 08:33:01 -0700 |
|---|---|---|
| committer | Yonghong Song <yhs@fb.com> | 2021-08-26 08:24:19 -0700 |
| commit | d383df32c0d5bcdc8c160ecdd7174399aa3c5395 (patch) | |
| tree | 49c61cd487506fc9ef79eb410b948e77a799f5de /llvm/lib/Bitcode/Reader/MetadataLoader.cpp | |
| parent | c9066c5d37755c7d9049dd1fb7bd365bdef6155f (diff) | |
| download | llvm-d383df32c0d5bcdc8c160ecdd7174399aa3c5395.zip llvm-d383df32c0d5bcdc8c160ecdd7174399aa3c5395.tar.gz llvm-d383df32c0d5bcdc8c160ecdd7174399aa3c5395.tar.bz2 | |
[DebugInfo] generate btf_tag annotations for DISubprogram types
Generate btf_tag annotations for DISubprogram types.
A field "annotations" is introduced to DISubprogram, and
annotations are represented as an DINodeArray, similar to
DIComposite elements. The following example illustrates how
annotations are encoded in IR:
distinct !DISubprogram(..., annotations: !10)
!10 = !{!11, !12}
!11 = !{!"btf_tag", !"a"}
!12 = !{!"btf_tag", !"b"}
Differential Revision: https://reviews.llvm.org/D106618
Diffstat (limited to 'llvm/lib/Bitcode/Reader/MetadataLoader.cpp')
| -rw-r--r-- | llvm/lib/Bitcode/Reader/MetadataLoader.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/llvm/lib/Bitcode/Reader/MetadataLoader.cpp b/llvm/lib/Bitcode/Reader/MetadataLoader.cpp index 3343efd..9a306fa 100644 --- a/llvm/lib/Bitcode/Reader/MetadataLoader.cpp +++ b/llvm/lib/Bitcode/Reader/MetadataLoader.cpp @@ -1693,6 +1693,7 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata( bool HasFn = false; bool HasThisAdj = true; bool HasThrownTypes = true; + bool HasAnnotations = false; unsigned OffsetA = 0; unsigned OffsetB = 0; if (!HasSPFlags) { @@ -1704,6 +1705,8 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata( } HasThisAdj = Record.size() >= 20; HasThrownTypes = Record.size() >= 21; + } else { + HasAnnotations = Record.size() >= 19; } Metadata *CUorFn = getMDOrNull(Record[12 + OffsetB]); DISubprogram *SP = GET_OR_DISTINCT( @@ -1726,7 +1729,9 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata( getMDOrNull(Record[14 + OffsetB]), // declaration getMDOrNull(Record[15 + OffsetB]), // retainedNodes HasThrownTypes ? getMDOrNull(Record[17 + OffsetB]) - : nullptr // thrownTypes + : nullptr, // thrownTypes + HasAnnotations ? getMDOrNull(Record[18 + OffsetB]) + : nullptr // annotations )); MetadataList.assignValue(SP, NextMetadataNo); NextMetadataNo++; |