ICE: clang::Sema::BuildBinOp(clang::Scope*, clang::SourceLocation, clang::BinaryOperatorKind, clang::Expr*, clang::Expr*): Assertion `(LHSExpr->containsErrors() || RHSExpr->containsErrors()) && "Should only occur in error-recovery path."' failed.

[chengniansun]

Bugzilla Link	50899
Version	trunk
OS	Linux
CC	@zygoloid

Extended Description

$ clang-trunk -v

clang version 13.0.0 (https://github.com/llvm/llvm-project.git 2e9c75daffddd65e37c3236708b5b133e6f5f2f5)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/cnsun/usr/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/9
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64

$ cat mutant.c

Yf;
static Zf[] = {Yf()};
testf() {
  int i;
  Zf + i;
}

$ clang-trunk mutant.c

mutant.c:1:1: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
Yf;
^
mutant.c:2:8: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
static Zf[] = {Yf()};
~~~~~~ ^
mutant.c:2:18: error: called object type 'int' is not a function or function pointer
static Zf[] = {Yf()};
               ~~^
mutant.c:3:1: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
testf() {
^
clang-13: /tmp/tmp.xjN6dMkdrg-clang-builder/llvm-project/clang/lib/Sema/SemaExpr.cpp:14641: clang::ExprResult clang::Sema::BuildBinOp(clang::Scope*, clang::SourceLocation, clang::BinaryOperatorKind, clang::Expr*, clang::Expr*): Assertion `(LHSExpr->containsErrors() || RHSExpr->containsErrors()) && "Should only occur in error-recovery path."' failed.
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.	Program arguments: /scratch/software/clang-trunk/bin/clang-13 -cc1 -triple x86_64-unknown-linux-gnu -emit-obj -mrelax-all --mrelax-relocations -disable-free -main-file-name mutant.c -mrelocation-model static -mframe-pointer=all -fmath-errno -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/scratch/cnsun/workspace/perses-fuzzer/default_c_finding_folder/crash_20210623_154114_03b7/delta/perses_result -resource-dir /scratch/software/clang-trunk/lib/clang/13.0.0 -c-isystem . -c-isystem /usr/local/include/cmsith -internal-isystem /scratch/software/clang-trunk/lib/clang/13.0.0/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -fdebug-compilation-dir=/scratch/cnsun/workspace/perses-fuzzer/default_c_finding_folder/crash_20210623_154114_03b7/delta/perses_result -ferror-limit 19 -fgnuc-version=4.2.1 -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /tmp/mutant-83fe7b.o -x c mutant.c
1.	mutant.c:5:9: current parser token ';'
2.	mutant.c:3:9: parsing function body 'testf'
3.	mutant.c:3:9: in compound statement ('{}')
 #0 0x000055ea91e4a184 PrintStackTraceSignalHandler(void*) Signals.cpp:0:0
 #1 0x000055ea91e4793e SignalHandler(int) Signals.cpp:0:0
 #2 0x00007f29183aa3c0 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0)
 #3 0x00007f2917e4918b raise /build/glibc-ZN95T4/glibc-2.31/signal/../sysdeps/unix/sysv/linux/raise.c:51:1
 #4 0x00007f2917e28859 abort /build/glibc-ZN95T4/glibc-2.31/stdlib/abort.c:81:7
 #5 0x00007f2917e28729 get_sysdep_segment_value /build/glibc-ZN95T4/glibc-2.31/intl/loadmsgcat.c:509:8
 #6 0x00007f2917e28729 _nl_load_domain /build/glibc-ZN95T4/glibc-2.31/intl/loadmsgcat.c:970:34
 #7 0x00007f2917e39f36 (/lib/x86_64-linux-gnu/libc.so.6+0x36f36)
 #8 0x000055ea94504fcc clang::Sema::BuildBinOp(clang::Scope*, clang::SourceLocation, clang::BinaryOperatorKind, clang::Expr*, clang::Expr*) (/scratch/software/clang-trunk/bin/clang-13+0x6015fcc)
 #9 0x000055ea945052b1 clang::Sema::ActOnBinOp(clang::Scope*, clang::SourceLocation, clang::tok::TokenKind, clang::Expr*, clang::Expr*) (/scratch/software/clang-trunk/bin/clang-13+0x60162b1)
#10 0x000055ea940beaaf clang::Parser::ParseRHSOfBinaryExpression(clang::ActionResult<clang::Expr*, true>, clang::prec::Level) (/scratch/software/clang-trunk/bin/clang-13+0x5bcfaaf)
#11 0x000055ea940c0b0d clang::Parser::ParseExpression(clang::Parser::TypeCastState) (/scratch/software/clang-trunk/bin/clang-13+0x5bd1b0d)
#12 0x000055ea9412874e clang::Parser::ParseExprStatement(clang::Parser::ParsedStmtContext) (/scratch/software/clang-trunk/bin/clang-13+0x5c3974e)
#13 0x000055ea9411fce2 clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributesWithRange&) (/scratch/software/clang-trunk/bin/clang-13+0x5c30ce2)
#14 0x000055ea941206ca clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/scratch/software/clang-trunk/bin/clang-13+0x5c316ca)
#15 0x000055ea94121649 clang::Parser::ParseCompoundStatementBody(bool) (/scratch/software/clang-trunk/bin/clang-13+0x5c32649)
#16 0x000055ea94123c5a clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/scratch/software/clang-trunk/bin/clang-13+0x5c34c5a)
#17 0x000055ea94069ef2 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/scratch/software/clang-trunk/bin/clang-13+0x5b7aef2)
#18 0x000055ea94096850 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/scratch/software/clang-trunk/bin/clang-13+0x5ba7850)
#19 0x000055ea940646f6 clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributesWithRange&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/scratch/software/clang-trunk/bin/clang-13+0x5b756f6)
#20 0x000055ea94064ce1 clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributesWithRange&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (.part.0) Parser.cpp:0:0
#21 0x000055ea9406b4e7 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributesWithRange&, clang::ParsingDeclSpec*) (/scratch/software/clang-trunk/bin/clang-13+0x5b7c4e7)
#22 0x000055ea9406ca7e clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool) (/scratch/software/clang-trunk/bin/clang-13+0x5b7da7e)
#23 0x000055ea9405f2c9 clang::ParseAST(clang::Sema&, bool, bool) (/scratch/software/clang-trunk/bin/clang-13+0x5b702c9)
#24 0x000055ea92fa6968 clang::CodeGenAction::ExecuteAction() (/scratch/software/clang-trunk/bin/clang-13+0x4ab7968)
#25 0x000055ea92856599 clang::FrontendAction::Execute() (/scratch/software/clang-trunk/bin/clang-13+0x4367599)
#26 0x000055ea927e97e6 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/scratch/software/clang-trunk/bin/clang-13+0x42fa7e6)
#27 0x000055ea92934480 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/scratch/software/clang-trunk/bin/clang-13+0x4445480)
#28 0x000055ea8f754696 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/scratch/software/clang-trunk/bin/clang-13+0x1265696)
#29 0x000055ea8f7509d8 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&) driver.cpp:0:0
#30 0x000055ea8f67e0e6 main (/scratch/software/clang-trunk/bin/clang-13+0x118f0e6)
#31 0x00007f2917e2a0b3 __libc_start_main /build/glibc-ZN95T4/glibc-2.31/csu/../csu/libc-start.c:342:3
#32 0x000055ea8f75054e _start (/scratch/software/clang-trunk/bin/clang-13+0x126154e)
clang-13: error: unable to execute command: Aborted (core dumped)
clang-13: error: clang frontend command failed due to signal (use -v to see invocation)
clang version 13.0.0 (https://github.com/llvm/llvm-project.git 2e9c75daffddd65e37c3236708b5b133e6f5f2f5)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/cnsun/usr/bin
clang-13: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-13: note: diagnostic msg: /tmp/mutant-af9997.c
clang-13: note: diagnostic msg: /tmp/mutant-af9997.sh
clang-13: note: diagnostic msg:

********************

[Endilll]

Build with assertions is still crashing: https://godbolt.org/z/rzfa1rWza
Diagnostics:

<source>:1:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
    1 | Yf;
      | ^
      | int
<source>:2:8: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
    2 | static Zf[] = {Yf()};
      | ~~~~~~ ^
      | int
<source>:2:18: error: called object type 'int' is not a function or function pointer
    2 | static Zf[] = {Yf()};
      |                ~~^
<source>:3:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Wimplicit-int]
    3 | testf() {
      | ^
      | int

Assertion:

clang: /root/llvm-project/clang/lib/Sema/SemaExpr.cpp:15912: clang::ExprResult clang::Sema::BuildBinOp(clang::Scope*, clang::SourceLocation, clang::BinaryOperatorKind, clang::Expr*, clang::Expr*): Assertion `(LHSExpr->containsErrors() || RHSExpr->containsErrors()) && "Should only occur in error-recovery path."' failed.

Stack:

0.	Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/clang -gdwarf-4 -g -o /app/output.s -mllvm --x86-asm-syntax=intel -S --gcc-toolchain=/opt/compiler-explorer/gcc-9.2.0 -fcolor-diagnostics -fno-crash-diagnostics <source>
1.	<source>:5:9: current parser token ';'
2.	<source>:3:9: parsing function body 'testf'
3.	<source>:3:9: in compound statement ('{}')
 #0 0x000055d05a3a0dbf llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3c12dbf)
 #1 0x000055d05a39eb2c llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3c10b2c)
 #2 0x000055d05a2e81a8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x00007f4ba45f1420 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x14420)
 #4 0x00007f4ba40be00b raise (/lib/x86_64-linux-gnu/libc.so.6+0x4300b)
 #5 0x00007f4ba409d859 abort (/lib/x86_64-linux-gnu/libc.so.6+0x22859)
 #6 0x00007f4ba409d729 (/lib/x86_64-linux-gnu/libc.so.6+0x22729)
 #7 0x00007f4ba40aefd6 (/lib/x86_64-linux-gnu/libc.so.6+0x33fd6)
 #8 0x000055d05d07e20c clang::Sema::BuildBinOp(clang::Scope*, clang::SourceLocation, clang::BinaryOperatorKind, clang::Expr*, clang::Expr*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x68f020c)
 #9 0x000055d05d07e491 clang::Sema::ActOnBinOp(clang::Scope*, clang::SourceLocation, clang::tok::TokenKind, clang::Expr*, clang::Expr*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x68f0491)
#10 0x000055d05cb55da6 clang::Parser::ParseRHSOfBinaryExpression(clang::ActionResult<clang::Expr*, true>, clang::prec::Level) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x63c7da6)
#11 0x000055d05cb585fd clang::Parser::ParseExpression(clang::Parser::TypeCastState) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x63ca5fd)
#12 0x000055d05cbd6a40 clang::Parser::ParseExprStatement(clang::Parser::ParsedStmtContext) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6448a40)
#13 0x000055d05cbcce13 clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x643ee13)
#14 0x000055d05cbcdd11 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x643fd11)
#15 0x000055d05cbced09 clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6440d09)
#16 0x000055d05cbd06ba clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x64426ba)
#17 0x000055d05cafb421 clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x636d421)
#18 0x000055d05cb222f0 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x63942f0)
#19 0x000055d05caeecc1 clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6360cc1)
#20 0x000055d05caef57f clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (.part.0) Parser.cpp:0:0
#21 0x000055d05caf5f21 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6367f21)
#22 0x000055d05caf6896 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6368896)
#23 0x000055d05caea65a clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x635c65a)
#24 0x000055d05b5ee7c8 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4e607c8)
#25 0x000055d05ae45f09 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x46b7f09)
#26 0x000055d05adca3d6 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x463c3d6)
#27 0x000055d05af289e6 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x479a9e6)
#28 0x000055d05785c46d cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x10ce46d)
#29 0x000055d05785816a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#30 0x000055d05ac3239d void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const::'lambda'()>(long) Job.cpp:0:0
#31 0x000055d05a2e86b0 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3b5a6b0)
#32 0x000055d05ac329bf clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (.part.0) Job.cpp:0:0
#33 0x000055d05abfa0ec clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x446c0ec)
#34 0x000055d05abfab7d clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x446cb7d)
#35 0x000055d05ac02c5d clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4474c5d)
#36 0x000055d05785a6ca clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x10cc6ca)
#37 0x000055d057761235 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xfd3235)
#38 0x00007f4ba409f083 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24083)
#39 0x000055d057852f4e _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x10c4f4e)

[llvmbot]

@llvm/issue-subscribers-clang-frontend