[llvm-bugs] [Bug 46558] New: Clang crash in clang/lib/AST/Expr.cpp:1762: bool clang::CastExpr::CastConsistency() const: Assertion `!getType()->isBooleanType() && "unheralded conversion to bool"' failed
via llvm-bugs
llvm-bugs at lists.llvm.org
Thu Jul 2 07:17:13 PDT 2020
https://bugs.llvm.org/show_bug.cgi?id=46558
Bug ID: 46558
Summary: Clang crash in clang/lib/AST/Expr.cpp:1762: bool
clang::CastExpr::CastConsistency() const: Assertion
`!getType()->isBooleanType() && "unheralded conversion
to bool"' failed
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Keywords: crash-on-invalid
Severity: normal
Priority: P
Component: Frontend
Assignee: unassignedclangbugs at nondot.org
Reporter: haoxintu at gmail.com
CC: llvm-bugs at lists.llvm.org, neeilans at live.com,
richard-llvm at metafoo.co.uk
Hi, there.
This case, bug.cc, reduced by C-Reduce, makes clang-trunk crashed.
$cat bug.cc
long a ;
enum : bool { b = ( a = throw 0 ) };
$clang++ bug.cc
bug.cc:2:26: error: assigning to 'long' from incompatible type 'void'
enum : bool { b = ( a = throw 0 ) };
^~~~~~~
clang-11: /home/haoxin/compilers/llvm-project/clang/lib/AST/Expr.cpp:1762: bool
clang::CastExpr::CastConsistency() const: Assertion
`!getType()->isBooleanType() && "unheralded conversion to bool"' 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:
/home/haoxin/compilers/llvm-project/build/bin/clang-11 -cc1 -triple
x86_64-unknown-linux-gnu -emit-obj -mrelax-all -disable-free -main-file-name
bug.cc -mrelocation-model static -mframe-pointer=all -fmath-errno
-fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64
-dwarf-column-info -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir
/home/haoxin/compilers/llvm-project/build/lib/clang/11.0.0 -internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10 -internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/x86_64-linux-gnu/c++/10
-internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/x86_64-linux-gnu/c++/10
-internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/backward
-internal-isystem /usr/local/include -internal-isystem
/home/haoxin/compilers/llvm-project/build/lib/clang/11.0.0/include
-internal-externc-isystem /usr/include/x86_64-linux-gnu
-internal-externc-isystem /include -internal-externc-isystem /usr/include
-fdeprecated-macro -fdebug-compilation-dir
/home/haoxin/bitbucket/scg-backup-bitbucket/ice-test/100000-3/creduce
-ferror-limit 19 -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions
-fcolor-diagnostics -faddrsig -o /tmp/bug-9682b5.o -x c++ bug.cc
1. bug.cc:2:37: current parser token ';'
#0 0x00000000026f36c4 PrintStackTraceSignalHandler(void*)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x26f36c4)
#1 0x00000000026f12be llvm::sys::RunSignalHandlers()
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x26f12be)
#2 0x00000000026f39e5 SignalHandler(int)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x26f39e5)
#3 0x00007f88d7ab8890 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x12890)
#4 0x00007f88d6516e97 raise
/build/glibc-OTsEL5/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0
#5 0x00007f88d6518801 abort /build/glibc-OTsEL5/glibc-2.27/stdlib/abort.c:81:0
#6 0x00007f88d650839a __assert_fail_base
/build/glibc-OTsEL5/glibc-2.27/assert/assert.c:89:0
#7 0x00007f88d6508412 (/lib/x86_64-linux-gnu/libc.so.6+0x30412)
#8 0x00000000049f8d5a clang::CastExpr::CastConsistency() const
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x49f8d5a)
#9 0x00000000049f95f6 clang::ImplicitCastExpr::Create(clang::ASTContext
const&, clang::QualType, clang::CastKind, clang::Expr*,
llvm::SmallVector<clang::CXXBaseSpecifier*, 4u> const*, clang::ExprValueKind)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x49f95f6)
#10 0x00000000040585f8 clang::Sema::ActOnEnumBody(clang::SourceLocation,
clang::SourceRange, clang::Decl*, llvm::ArrayRef<clang::Decl*>, clang::Scope*,
clang::ParsedAttributesView const&)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x40585f8)
#11 0x0000000003e13b70 clang::Parser::ParseEnumBody(clang::SourceLocation,
clang::Decl*)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3e13b70)
#12 0x0000000003e1045f clang::Parser::ParseEnumSpecifier(clang::SourceLocation,
clang::DeclSpec&, clang::Parser::ParsedTemplateInfo const&,
clang::AccessSpecifier, clang::Parser::DeclSpecContext)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3e1045f)
#13 0x0000000003e0791d
clang::Parser::ParseDeclarationSpecifiers(clang::DeclSpec&,
clang::Parser::ParsedTemplateInfo const&, clang::AccessSpecifier,
clang::Parser::DeclSpecContext, clang::Parser::LateParsedAttrList*)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3e0791d)
#14 0x0000000003def66a
clang::Parser::ParseDeclOrFunctionDefInternal(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec&, clang::AccessSpecifier)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3def66a)
#15 0x0000000003def395
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*, clang::AccessSpecifier)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3def395)
#16 0x0000000003dee1bf
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3dee1bf)
#17 0x0000000003dec28d
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3dec28d)
#18 0x0000000003de770d clang::ParseAST(clang::Sema&, bool, bool)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x3de770d)
#19 0x0000000002ebc3f3 clang::FrontendAction::Execute()
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x2ebc3f3)
#20 0x0000000002e539c3
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x2e539c3)
#21 0x0000000002f67532
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x2f67532)
#22 0x000000000095d060 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x95d060)
#23 0x000000000095b12c ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x95b12c)
#24 0x000000000095addf main
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x95addf)
#25 0x00007f88d64f9b97 __libc_start_main
/build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:344:0
#26 0x0000000000957eba _start
(/home/haoxin/compilers/llvm-project/build/bin/clang-11+0x957eba)
clang-11: error: unable to execute command: Aborted (core dumped)
clang-11: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 11.0.0 (https://github.com/llvm/llvm-project
b9306fd042ce1c11d84f05d2124dfdc65b8331fe)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/haoxin/compilers/llvm-project/build/bin
clang-11: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-11: note: diagnostic msg: /tmp/bug-6aa6dd.cpp
clang-11: note: diagnostic msg: /tmp/bug-6aa6dd.sh
clang-11: note: diagnostic msg:
********************
$clang++ -v
clang version 11.0.0 (https://github.com/llvm/llvm-project
b9306fd042ce1c11d84f05d2124dfdc65b8331fe)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/haoxin/compilers/llvm-project/build/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.5.0
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
Selected multilib: .;@m64
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