[llvm-bugs] [Bug 50826] New: [regression] ICE: Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed.

via llvm-bugs llvm-bugs at lists.llvm.org
Wed Jun 23 16:49:03 PDT 2021


https://bugs.llvm.org/show_bug.cgi?id=50826

            Bug ID: 50826
           Summary: [regression] ICE: Assertion `isa<X>(Val) &&
                    "cast<Ty>() argument of incompatible type!"' failed.
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C
          Assignee: unassignedclangbugs at nondot.org
          Reporter: cnsun at uwaterloo.ca
                CC: blitzrakete at gmail.com, dgregor at apple.com,
                    erik.pilkington at gmail.com, llvm-bugs at lists.llvm.org,
                    richard-llvm at metafoo.co.uk

This is a regression. clang-10 does not crash.

$ clang-trunk -v
clang version 13.0.0 (https://github.com/llvm/llvm-project.git
5c8659801a4976ef2b327f4071d98086efd42a36)
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
void __attribute__((interrupt)) fn(void()) {}

$ clang-trunk  mutant.c
mutant.c:1:41: warning: omitting the parameter name in a function definition is
a C2x extension [-Wc2x-extensions]
void __attribute__((interrupt)) fn(void()) {}
                                        ^
clang-13:
/tmp/tmp.FIfHBNID2p-clang-builder/llvm-project/llvm/include/llvm/Support/Casting.h:255:
std::enable_if_t<(! llvm::is_simple_type<Y>::value), typename
llvm::cast_retty<X, const Y>::ret_type> llvm::cast(const Y&) [with X =
clang::PointerType; Y = clang::QualType; std::enable_if_t<(!
llvm::is_simple_type<Y>::value), typename llvm::cast_retty<X, const
Y>::ret_type> = const clang::PointerType*]: Assertion `isa<X>(Val) &&
"cast<Ty>() argument of incompatible type!"' 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_060659_00ee/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_060659_00ee/delta/perses_result
-ferror-limit 19 -fgnuc-version=4.2.1 -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1
-o /tmp/mutant-2d7065.o -x c mutant.c
1.      <eof> parser at end of file
2.      mutant.c:1:33: LLVM IR generation of declaration 'fn'
3.      mutant.c:1:33: Generating code for declaration 'fn'
 #0 0x000055c27649ec64 PrintStackTraceSignalHandler(void*) Signals.cpp:0:0
 #1 0x000055c27649c41e SignalHandler(int) Signals.cpp:0:0
 #2 0x00007fc2070a23c0 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0)
 #3 0x00007fc206b4118b raise
/build/glibc-ZN95T4/glibc-2.31/signal/../sysdeps/unix/sysv/linux/raise.c:51:1
 #4 0x00007fc206b20859 abort /build/glibc-ZN95T4/glibc-2.31/stdlib/abort.c:81:7
 #5 0x00007fc206b20729 get_sysdep_segment_value
/build/glibc-ZN95T4/glibc-2.31/intl/loadmsgcat.c:509:8
 #6 0x00007fc206b20729 _nl_load_domain
/build/glibc-ZN95T4/glibc-2.31/intl/loadmsgcat.c:970:34
 #7 0x00007fc206b31f36 (/lib/x86_64-linux-gnu/libc.so.6+0x36f36)
 #8 0x000055c276989e6c addX86InterruptAttrs(clang::FunctionDecl const*,
llvm::GlobalValue*, clang::CodeGen::CodeGenModule&) TargetInfo.cpp:0:0
 #9 0x000055c2768ce58b
clang::CodeGen::CodeGenModule::setNonAliasAttributes(clang::GlobalDecl,
llvm::GlobalObject*) (/scratch/software/clang-trunk/bin/clang-13+0x3d7e58b)
#10 0x000055c2768f6421
clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl,
llvm::GlobalValue*) (/scratch/software/clang-trunk/bin/clang-13+0x3da6421)
#11 0x000055c2768f1fa5
clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl,
llvm::GlobalValue*) (/scratch/software/clang-trunk/bin/clang-13+0x3da1fa5)
#12 0x000055c2768f240b
clang::CodeGen::CodeGenModule::EmitGlobal(clang::GlobalDecl)
(/scratch/software/clang-trunk/bin/clang-13+0x3da240b)
#13 0x000055c2768fae72
clang::CodeGen::CodeGenModule::EmitTopLevelDecl(clang::Decl*) (.part.0)
CodeGenModule.cpp:0:0
#14 0x000055c2775fd4f9 (anonymous
namespace)::CodeGeneratorImpl::HandleTopLevelDecl(clang::DeclGroupRef)
ModuleBuilder.cpp:0:0
#15 0x000055c2775ef6e0
clang::BackendConsumer::HandleTopLevelDecl(clang::DeclGroupRef)
(/scratch/software/clang-trunk/bin/clang-13+0x4a9f6e0)
#16 0x000055c2786b2fe4 clang::ParseAST(clang::Sema&, bool, bool)
(/scratch/software/clang-trunk/bin/clang-13+0x5b62fe4)
#17 0x000055c2775fa678 clang::CodeGenAction::ExecuteAction()
(/scratch/software/clang-trunk/bin/clang-13+0x4aaa678)
#18 0x000055c276eaa029 clang::FrontendAction::Execute()
(/scratch/software/clang-trunk/bin/clang-13+0x435a029)
#19 0x000055c276e3d1e6
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/scratch/software/clang-trunk/bin/clang-13+0x42ed1e6)
#20 0x000055c276f87eb0
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/scratch/software/clang-trunk/bin/clang-13+0x4437eb0)
#21 0x000055c273db06f6 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/scratch/software/clang-trunk/bin/clang-13+0x12606f6)
#22 0x000055c273daca38 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
driver.cpp:0:0
#23 0x000055c273cda0a6 main
(/scratch/software/clang-trunk/bin/clang-13+0x118a0a6)
#24 0x00007fc206b220b3 __libc_start_main
/build/glibc-ZN95T4/glibc-2.31/csu/../csu/libc-start.c:342:3
#25 0x000055c273dac5ae _start
(/scratch/software/clang-trunk/bin/clang-13+0x125c5ae)
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
5c8659801a4976ef2b327f4071d98086efd42a36)
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-a7b765.c
clang-13: note: diagnostic msg: /tmp/mutant-a7b765.sh
clang-13: note: diagnostic msg:

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

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