================
@@ -5341,6 +5341,15 @@ void CodeGenModule::EmitGlobalVarDefinition(const
VarDecl *D,
!IsDefinitionAvailableExternally &&
D->needsDestruction(getContext()) == QualType::DK_cxx_destructor;
+ // It is helpless to emit the definition for an available_externally variable
+ // which can't be marked as const.
+ // We don't need to check if it needs global ctor or dtor. See the above
+ // comment for ideas.
+ if (IsDefinitionAvailableExternally &&
+ (!D->hasConstantInitialization() ||
+ !D->getType().isConstantStorage(getContext(), true, true)))
----------------
ChuanqiXu9 wrote:
(we think) the available externally variables don't need ctor or dtor in the
current TU. We mentioned this in the comment.
https://github.com/llvm/llvm-project/pull/93530
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