[clang][modules] RecordLayoutBuilder.cpp crash: Cannot get layout of forward declarations #154840
Description
This is a failure that bisects to #147835 , but I don't have a repro yet. Working on that now.
assertion failed at clang/lib/AST/RecordLayoutBuilder.cpp:3380 in const ASTRecordLayout &clang::ASTContext::getASTRecordLayout(const RecordDecl *) const: D && "Cannot get layout of forward declarations!" *** Check failure stack trace: *** @ 0x557b3889784f clang::ASTContext::getASTRecordLayout() @ 0x557b3823cd68 clang::ASTContext::getTypeInfoImpl() @ 0x557b3823e25c clang::ASTContext::getTypeInfo() @ 0x557b3823d855 clang::ASTContext::getPreferredTypeAlign() @ 0x557b3823bf01 clang::ASTContext::getDeclAlign() @ 0x557b366c6a06 clang::CodeGen::CodeGenFunction::EmitAutoVarAlloca() @ 0x557b366c165c clang::CodeGen::CodeGenFunction::EmitVarDecl() @ 0x557b366c1120 clang::CodeGen::CodeGenFunction::EmitDecl() @ 0x557b36760580 clang::CodeGen::CodeGenFunction::EmitDeclStmt() @ 0x557b36754d50 clang::CodeGen::CodeGenFunction::EmitSimpleStmt() @ 0x557b3675403e clang::CodeGen::CodeGenFunction::EmitStmt() @ 0x557b36761891 clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope() @ 0x557b368c47d5 clang::CodeGen::CodeGenFunction::GenerateCode() @ 0x557b368ef9f6 clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition() @ 0x557b368e6bc8 clang::CodeGen::CodeGenModule::EmitGlobalDefinition() @ 0x557b368d7786 clang::CodeGen::CodeGenModule::EmitDeferred() @ 0x557b368d77a2 clang::CodeGen::CodeGenModule::EmitDeferred() ... @ 0x557b368d77a2 clang::CodeGen::CodeGenModule::EmitDeferred() @ 0x557b368d77a2 clang::CodeGen::CodeGenModule::EmitDeferred() @ 0x557b368d41ae clang::CodeGen::CodeGenModule::Release() @ 0x557b36a1e14e (anonymous namespace)::CodeGeneratorImpl::HandleTranslationUnit()