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[DebugInfo][clang][DWARF5]: Added support for debuginfo generation for defaulted parameters

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in C++ templates.

Summary:
This patch adds support for debuginfo generation for defaulted
parameters in clang and also extends corresponding DebugMetadata/IR to support this feature.

Reviewers: probinson, aprantl, dblaikie

Reviewed By: aprantl, dblaikie

Differential Revision: https://reviews.llvm.org/D73462
This commit is contained in:
Awanish Pandey
2020-03-02 10:52:12 +05:30
committed by Sourabh Singh Tomar
parent daab6ad58d
commit c2b437d53d
13 changed files with 303 additions and 101 deletions
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41
llvm/lib/Bitcode/Reader/MetadataLoader.cpp
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@@ -1668,27 +1668,34 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata(
break;
}
case bitc::METADATA_TEMPLATE_TYPE: {
if (Record.size() != 3)
return error("Invalid record");
IsDistinct = Record[0];
MetadataList.assignValue(GET_OR_DISTINCT(DITemplateTypeParameter,
(Context, getMDString(Record[1]),
getDITypeRefOrNull(Record[2]))),
NextMetadataNo);
NextMetadataNo++;
break;
}
case bitc::METADATA_TEMPLATE_VALUE: {
if (Record.size() != 5)
if (Record.size() < 3 || Record.size() > 4)
return error("Invalid record");
IsDistinct = Record[0];
MetadataList.assignValue(
GET_OR_DISTINCT(DITemplateValueParameter,
(Context, Record[1], getMDString(Record[2]),
getDITypeRefOrNull(Record[3]),
getMDOrNull(Record[4]))),
GET_OR_DISTINCT(DITemplateTypeParameter,
(Context, getMDString(Record[1]),
getDITypeRefOrNull(Record[2]),
(Record.size() == 4) ? getMDOrNull(Record[3])
: getMDOrNull(false))),
NextMetadataNo);
NextMetadataNo++;
break;
}
case bitc::METADATA_TEMPLATE_VALUE: {
if (Record.size() < 5 || Record.size() > 6)
return error("Invalid record");
IsDistinct = Record[0];
MetadataList.assignValue(
GET_OR_DISTINCT(
DITemplateValueParameter,
(Context, Record[1], getMDString(Record[2]),
getDITypeRefOrNull(Record[3]),
(Record.size() == 6) ? getMDOrNull(Record[4]) : getMDOrNull(false),
(Record.size() == 6) ? getMDOrNull(Record[5])
: getMDOrNull(Record[4]))),
NextMetadataNo);
NextMetadataNo++;
break;