[llvm-bugs] [Bug 45135] New: Clang crashes when modules are used
via llvm-bugs
llvm-bugs at lists.llvm.org
Fri Mar 6 02:03:32 PST 2020
https://bugs.llvm.org/show_bug.cgi?id=45135
Bug ID: 45135
Summary: Clang crashes when modules are used
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Modules
Assignee: unassignedclangbugs at nondot.org
Reporter: artem.yarulin at kapteko.com
CC: dgregor at apple.com, llvm-bugs at lists.llvm.org,
richard-llvm at metafoo.co.uk
Created attachment 23213
--> https://bugs.llvm.org/attachment.cgi?id=23213&action=edit
crash diagnostic msg notes
clang crashes when modules are used, I've tried v9 and latest
11.0.0-++20200305081720+a31130f6fcf-1~exp1~20200305073037.129
Following repo has all the files, texts and Docker file to reproduce the crash
https://github.com/artemyarulin/clang-cpp20-modules-crash
m.cc
```
#include <map>
export module m;
```
main.cc
```
#include <map>
import m;
int main(int, char**) {
std::map<int, int> m1;
}
```
Build:
```
clang++ -std=c++2a -fmodules-ts -fprebuilt-module-path=. --precompile -x
c++-module m.cc -o m.pcm
clang++ -std=c++2a -fmodules-ts -fprebuilt-module-path=. -c m.pcm -o m.o
clang++ -std=c++2a -fmodules-ts -fprebuilt-module-path=. m.o main.cc -o app
```
Experimenting shows that it caused by map import in main and inside a module
Produced stacktrace is the following
```
clang version 11.0.0-++20200305081720+a31130f6fcf-1~exp1~20200305073037.129
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
clang++ -std=c++2a -fmodules-ts -fprebuilt-module-path=. --precompile -x
c++-module m.cc -o m.pcm
clang++ -std=c++2a -fmodules-ts -fprebuilt-module-path=. -c m.pcm -o m.o
clang++ -std=c++2a -fmodules-ts -fprebuilt-module-path=. m.o main.cc -o app
Stack dump:
0. Program arguments: /usr/lib/llvm-11/bin/clang -cc1 -triple
x86_64-pc-linux-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier
-discard-value-names -main-file-name main.cc -mrelocation-model static
-mthread-model posix -mframe-pointer=all -fmath-errno
-fdenormal-fp-math=ieee,ieee -fno-rounding-math -masm-verbose
-mconstructor-aliases -munwind-tables -target-cpu x86-64 -dwarf-column-info
-fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir
/usr/lib/llvm-11/lib/clang/11.0.0 -internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/9/../../../../include/x86_64-linux-gnu/c++/9
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/9/../../../../include/x86_64-linux-gnu/c++/9
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/backward
-internal-isystem /usr/local/include -internal-isystem
/usr/lib/llvm-11/lib/clang/11.0.0/include -internal-externc-isystem
/usr/include/x86_64-linux-gnu -internal-externc-isystem /include
-internal-externc-isystem /usr/include -std=c++2a -fdeprecated-macro
-fdebug-compilation-dir /src -ferror-limit 19 -fmessage-length 0
-fgnuc-version=4.2.1 -fmodules-ts -fno-implicit-modules
-fprebuilt-module-path=. -fobjc-runtime=gcc -fcxx-exceptions -fexceptions
-fdiagnostics-show-option -faddrsig -o /tmp/main-c8e327.o -x c++ main.cc
1. main.cc:6:8: at annotation token
2. main.cc:5:23: parsing function body 'main'
3. main.cc:5:23: in compound statement ('{}')
#0 0x00007fe506a2c3bf llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/lib/x86_64-linux-gnu/libLLVM-11.so.1+0x9ab3bf)
#1 0x00007fe506a2a670 llvm::sys::RunSignalHandlers()
(/lib/x86_64-linux-gnu/libLLVM-11.so.1+0x9a9670)
#2 0x00007fe506a2c985 (/lib/x86_64-linux-gnu/libLLVM-11.so.1+0x9ab985)
#3 0x00007fe506073540 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x15540)
#4 0x00007fe50412b863 clang::TypeLoc::getNextTypeLocImpl(clang::TypeLoc)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0xc87863)
#5 0x00007fe50412c8ab clang::TypeLoc::getBeginLoc() const
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0xc888ab)
#6 0x00007fe503f5f046 clang::TemplateTypeParmDecl::getDefaultArgumentLoc()
const (/lib/x86_64-linux-gnu/libclang-cpp.so.11+0xabb046)
#7 0x00007fe5047e48cf (/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x13408cf)
#8 0x00007fe5047da3ea
clang::Sema::CheckTemplateArgumentList(clang::TemplateDecl*,
clang::SourceLocation, clang::TemplateArgumentListInfo&, bool,
llvm::SmallVectorImpl<clang::TemplateArgument>&, bool, bool*)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x13363ea)
#9 0x00007fe5047d8cd2 clang::Sema::CheckTemplateIdType(clang::TemplateName,
clang::SourceLocation, clang::TemplateArgumentListInfo&)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x1334cd2)
#10 0x00007fe5047dc2ec clang::Sema::ActOnTemplateIdType(clang::Scope*,
clang::CXXScopeSpec&, clang::SourceLocation,
clang::OpaquePtr<clang::TemplateName>, clang::IdentifierInfo*,
clang::SourceLocation, clang::SourceLocation,
llvm::MutableArrayRef<clang::ParsedTemplateArgument>, clang::SourceLocation,
bool, bool) (/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x13382ec)
#11 0x00007fe503dfc07e
clang::Parser::AnnotateTemplateIdTokenAsType(clang::CXXScopeSpec&, bool)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x95807e)
#12 0x00007fe503e0b72e
clang::Parser::TryAnnotateTypeOrScopeTokenAfterScopeSpec(clang::CXXScopeSpec&,
bool) (/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x96772e)
#13 0x00007fe503e0bad4 clang::Parser::TryAnnotateTypeOrScopeToken()
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x967ad4)
#14 0x00007fe503dfdc0f
clang::Parser::isCXXDeclarationSpecifier(clang::Parser::TPResult, bool*)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x959c0f)
#15 0x00007fe503dfd657 clang::Parser::isCXXSimpleDeclaration(bool)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x959657)
#16 0x00007fe503de8efd
clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*,
clang::Parser::ParsedAttributesWithRange&)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x944efd)
#17 0x00007fe503de8a2a
clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x944a2a)
#18 0x00007fe503df0170 clang::Parser::ParseCompoundStatementBody(bool)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x94c170)
#19 0x00007fe503df10b5 clang::Parser::ParseFunctionStatementBody(clang::Decl*,
clang::Parser::ParseScope&) (/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x94d0b5)
#20 0x00007fe503e09ed6
clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&,
clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x965ed6)
#21 0x00007fe503d732ea clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&,
clang::DeclaratorContext, clang::SourceLocation*, clang::Parser::ForRangeInit*)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x8cf2ea)
#22 0x00007fe503e090cd
clang::Parser::ParseDeclOrFunctionDefInternal(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec&, clang::AccessSpecifier)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x9650cd)
#23 0x00007fe503e08adc
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*, clang::AccessSpecifier)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x964adc)
#24 0x00007fe503e07c5c
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*) (/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x963c5c)
#25 0x00007fe503e05f9c
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x961f9c)
#26 0x00007fe503d5ed3d clang::ParseAST(clang::Sema&, bool, bool)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x8bad3d)
#27 0x00007fe505232608 clang::FrontendAction::Execute()
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x1d8e608)
#28 0x00007fe5051e9fc1
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x1d45fc1)
#29 0x00007fe50529687f
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/lib/x86_64-linux-gnu/libclang-cpp.so.11+0x1df287f)
#30 0x00000000004122af cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/usr/lib/llvm-11/bin/clang+0x4122af)
#31 0x0000000000410601 (/usr/lib/llvm-11/bin/clang+0x410601)
#32 0x000000000040e6c1 main (/usr/lib/llvm-11/bin/clang+0x40e6c1)
#33 0x00007fe502f811e3 __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x271e3)
#34 0x000000000040d8de _start (/usr/lib/llvm-11/bin/clang+0x40d8de)
clang: error: unable to execute command: Segmentation fault
clang: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 11.0.0-++20200305081720+a31130f6fcf-1~exp1~20200305073037.129
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
clang: note: diagnostic msg: PLEASE submit a bug report to
https://bugs.llvm.org/ and include the crash backtrace, preprocessed source,
and associated run script.
clang: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /tmp/main-a0e4ae.cpp
clang: note: diagnostic msg: /tmp/main-a0e4ae.sh
clang: note: diagnostic msg:
********************
```
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