[llvm-bugs] [Bug 32640] New: Assert "Default argument is not yet instantiated!" after clang::CXXRecordDecl::getODRHash()

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=32640

            Bug ID: 32640
           Summary: Assert "Default argument is not yet instantiated!"
                    after clang::CXXRecordDecl::getODRHash()
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: hans at chromium.org
                CC: llvm-bugs at lists.llvm.org

When building Chromium on Mac with r300006:


FAILED: obj/base/base/precompile.h-mm.gch 
export DEVELOPER_DIR=/b/c/b/ClangToTMac/src/build/mac_files/Xcode.app; 
../../third_party/llvm-build/Release+Asserts/bin/clang++ -MMD -MF
obj/base/base/precompile.h-mm.gch.d -DSYSTEM_NATIVE_UTF8
-DV8_DEPRECATION_WARNINGS -DNO_TCMALLOC -DFULL_SAFE_BROWSING
-DSAFE_BROWSING_CSD -DSAFE_BROWSING_DB_LOCAL -DCHROMIUM_BUILD
-DENABLE_MEDIA_ROUTER=1 -DFIELDTRIAL_TESTING_ENABLED
-DCR_CLANG_REVISION=\"300006\" -DCR_XCODE_VERSION=0511 -D__STDC_CONSTANT_MACROS
-D__STDC_FORMAT_MACROS -D_FORTIFY_SOURCE=2 -DCOMPONENT_BUILD
-D__ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORE=0 -DNDEBUG -DNVALGRIND
-DDYNAMIC_ANNOTATIONS_ENABLED=0 -DBASE_IMPLEMENTATION -I../.. -Igen
-fno-strict-aliasing -fstack-protector -Wno-builtin-macro-redefined -D__DATE__=
-D__TIME__= -D__TIMESTAMP__= -fcolor-diagnostics -arch x86_64 -Wall -Werror
-Wextra -Wpartial-availability -Wno-missing-field-initializers
-Wno-unused-parameter -Wno-c++11-narrowing -Wno-covered-switch-default
-Wno-unneeded-internal-declaration -Wno-inconsistent-missing-override
-Wno-undefined-var-template -Wno-nonportable-include-path
-Wno-address-of-packed-member -Wno-unused-lambda-capture
-Wno-user-defined-warnings -fno-omit-frame-pointer -g1 -isysroot
/b/c/b/ClangToTMac/src/build/mac_files/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk
-mmacosx-version-min=10.9 -fvisibility=hidden -Wheader-hygiene
-Wstring-conversion -Wtautological-overlap-compare -Wno-char-subscripts
-Wexit-time-destructors -Wexit-time-destructors -O2 -fvisibility-inlines-hidden
-std=c++11 -stdlib=libc++ -fobjc-call-cxx-cdtors
-Wobjc-missing-property-synthesis -fno-rtti -fno-exceptions -x
objective-c++-header -c ../../build/precompile.h -o
obj/base/base/precompile.h-mm.gch
Assertion failed: (!hasUninstantiatedDefaultArg() && "Default argument is not
yet instantiated!"), function getDefaultArg, file
/b/c/b/ClangToTMac/src/third_party/llvm/tools/clang/lib/AST/Decl.cpp, line
2424.
0  clang-5.0                0x0000000103af73f8
llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
1  clang-5.0                0x0000000103af7af6
llvm::sys::PrintStackTraceOnErrorSignal(llvm::StringRef, bool) + 838
2  libsystem_platform.dylib 0x00007fff9d78fbba _sigtramp + 26
3  libsystem_platform.dylib 0x0000000000000001 _sigtramp + 1653015649
4  libsystem_c.dylib        0x00007fff9d616420 abort + 129
5  libsystem_c.dylib        0x00007fff9d5dd893 basename_r + 0
6  clang-5.0                0x00000001055ab93d
clang::ParmVarDecl::getDefaultArg() + 109
7  clang-5.0                0x00000001056a9299
clang::ODRHash::AddType(clang::Type const*) + 409
8  clang-5.0                0x00000001056a97a2
clang::ODRHash::AddType(clang::Type const*) + 1698
9  clang-5.0                0x00000001056a902f
clang::ODRHash::AddCXXRecordDecl(clang::CXXRecordDecl const*) + 463
10 clang-5.0                0x00000001055d0276
clang::CXXRecordDecl::getODRHash() const + 294
11 clang-5.0                0x0000000104b0aeb9
clang::ASTRecordWriter::AddCXXDefinitionData(clang::CXXRecordDecl const*) +
1753
12 clang-5.0                0x0000000104b25d5a
clang::ASTDeclWriter::VisitCXXRecordDecl(clang::CXXRecordDecl*) + 314
13 clang-5.0                0x0000000104b271e0
clang::ASTDeclWriter::VisitClassTemplateSpecializationDecl(clang::ClassTemplateSpecializationDecl*)
+ 128
14 clang-5.0                0x0000000104b1c806
clang::ASTDeclWriter::Visit(clang::Decl*) + 22
15 clang-5.0                0x0000000104b301ab
clang::ASTWriter::WriteDecl(clang::ASTContext&, clang::Decl*) + 459
16 clang-5.0                0x0000000104b0799a
clang::ASTWriter::WriteASTCore(clang::Sema&, llvm::StringRef,
std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char> > const&, clang::Module*) + 12154
17 clang-5.0                0x0000000104b0489c
clang::ASTWriter::WriteAST(clang::Sema&, std::__1::basic_string<char,
std::__1::char_traits<char>, std::__1::allocator<char> > const&,
clang::Module*, llvm::StringRef, bool) + 652
18 clang-5.0                0x0000000104b46d0b
clang::PCHGenerator::HandleTranslationUnit(clang::ASTContext&) + 251
19 clang-5.0                0x000000010421833c
clang::MultiplexConsumer::HandleTranslationUnit(clang::ASTContext&) + 44
20 clang-5.0                0x0000000104959da5 clang::ParseAST(clang::Sema&,
bool, bool) + 469
21 clang-5.0                0x00000001041d65ac clang::FrontendAction::Execute()
+ 76
22 clang-5.0                0x0000000104192931
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 1217
23 clang-5.0                0x0000000104237ba2
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 4914
24 clang-5.0                0x000000010235acac cc1_main(llvm::ArrayRef<char
const*>, char const*, void*) + 1388
25 clang-5.0                0x0000000102359373 main + 11875
26 libdyld.dylib            0x00007fff9d582255 start + 1
27 libdyld.dylib            0x000000000000008f start + 1655168571

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