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Serialization: Preserve identity of opened generic environments

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We used to create a new environment for each opened archetype, which is
incorrect when deserializing a nested type of another opened archetype.
This commit is contained in:
Slava Pestov
2022-08-11 23:44:18 -04:00
parent 7a970367fd
commit b36f37cc72
14 changed files with 165 additions and 51 deletions
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4
lib/Serialization/ModuleFileSharedCore.cpp
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@@ -839,6 +839,10 @@ bool ModuleFileSharedCore::readIndexBlock(llvm::BitstreamCursor &cursor) {
assert(blobData.empty());
allocateBuffer(GenericSignatures, scratch);
break;
case index_block::GENERIC_ENVIRONMENT_OFFSETS:
assert(blobData.empty());
allocateBuffer(GenericEnvironments, scratch);
break;
case index_block::SUBSTITUTION_MAP_OFFSETS:
assert(blobData.empty());
allocateBuffer(SubstitutionMaps, scratch);