[llvm-bugs] [Bug 50889] New: ICE: nType; typename llvm::cast_retty<X, Y>::ret_type = const clang::FunctionProtoType]: Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed.

Sat Jun 26 13:15:15 PDT 2021

https://bugs.llvm.org/show_bug.cgi?id=50889

            Bug ID: 50889
           Summary: ICE: nType; typename llvm::cast_retty<X, Y*>::ret_type
                    = const clang::FunctionProtoType*]: Assertion
                    `isa<X>(Val) && "cast<Ty>() argument of incompatible
                    type!"' failed.
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: cnsun at uwaterloo.ca
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org,
                    neeilans at live.com, richard-llvm at metafoo.co.uk

$ 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
__attribute__((callback(callback))) main() {}

$ clang-trunk  mutant.c
mutant.c:1:37: warning: type specifier missing, defaults to 'int'
[-Wimplicit-int]
__attribute__((callback(callback))) main() {}
                                    ^
clang-13:
/tmp/tmp.xjN6dMkdrg-clang-builder/llvm-project/llvm/include/llvm/Support/Casting.h:269:
typename llvm::cast_retty<X, Y*>::ret_type llvm::cast(Y*) [with X =
clang::FunctionProtoType; Y = const clang::FunctionType; typename
llvm::cast_retty<X, Y*>::ret_type = const clang::FunctionProtoType*]: 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_141417_0324/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_141417_0324/delta/perses_result
-ferror-limit 19 -fgnuc-version=4.2.1 -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1
-o /tmp/mutant-552637.o -x c mutant.c
1.      mutant.c:1:44: current parser token '{'
 #0 0x000055dece2f7184 PrintStackTraceSignalHandler(void*) Signals.cpp:0:0
 #1 0x000055dece2f493e SignalHandler(int) Signals.cpp:0:0
 #2 0x00007fb9bf10f3c0 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0)
 #3 0x00007fb9bebae18b raise
/build/glibc-ZN95T4/glibc-2.31/signal/../sysdeps/unix/sysv/linux/raise.c:51:1
 #4 0x00007fb9beb8d859 abort /build/glibc-ZN95T4/glibc-2.31/stdlib/abort.c:81:7
 #5 0x00007fb9beb8d729 get_sysdep_segment_value
/build/glibc-ZN95T4/glibc-2.31/intl/loadmsgcat.c:509:8
 #6 0x00007fb9beb8d729 _nl_load_domain
/build/glibc-ZN95T4/glibc-2.31/intl/loadmsgcat.c:970:34
 #7 0x00007fb9beb9ef36 (/lib/x86_64-linux-gnu/libc.so.6+0x36f36)
 #8 0x000055ded07f386c getFunctionOrMethodNumParams(clang::Decl const*)
SemaDeclAttr.cpp:0:0
 #9 0x000055ded0817d9a handleCallbackAttr(clang::Sema&, clang::Decl*,
clang::ParsedAttr const&) SemaDeclAttr.cpp:0:0
#10 0x000055ded083e539 ProcessDeclAttribute(clang::Sema&, clang::Scope*,
clang::Decl*, clang::ParsedAttr const&, bool) SemaDeclAttr.cpp:0:0
#11 0x000055ded083f940 clang::Sema::ProcessDeclAttributeList(clang::Scope*,
clang::Decl*, clang::ParsedAttributesView const&, bool) (.part.0)
SemaDeclAttr.cpp:0:0
#12 0x000055ded0840b51 clang::Sema::ProcessDeclAttributes(clang::Scope*,
clang::Decl*, clang::Declarator const&)
(/scratch/software/clang-trunk/bin/clang-13+0x5ea4b51)
#13 0x000055ded07e627c clang::Sema::ActOnFunctionDeclarator(clang::Scope*,
clang::Declarator&, clang::DeclContext*, clang::TypeSourceInfo*,
clang::LookupResult&, llvm::MutableArrayRef<clang::TemplateParameterList*>,
bool&) (/scratch/software/clang-trunk/bin/clang-13+0x5e4a27c)
#14 0x000055ded07ebbb1 clang::Sema::HandleDeclarator(clang::Scope*,
clang::Declarator&, llvm::MutableArrayRef<clang::TemplateParameterList*>)
(/scratch/software/clang-trunk/bin/clang-13+0x5e4fbb1)
#15 0x000055ded07ec7b7 clang::Sema::ActOnStartOfFunctionDef(clang::Scope*,
clang::Declarator&, llvm::MutableArrayRef<clang::TemplateParameterList*>,
clang::Sema::SkipBodyInfo*)
(/scratch/software/clang-trunk/bin/clang-13+0x5e507b7)
#16 0x000055ded0516b1f
clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&,
clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*)
(/scratch/software/clang-trunk/bin/clang-13+0x5b7ab1f)
#17 0x000055ded0543850 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&,
clang::DeclaratorContext, clang::SourceLocation*, clang::Parser::ForRangeInit*)
(/scratch/software/clang-trunk/bin/clang-13+0x5ba7850)
#18 0x000055ded05116f6
clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributesWithRange&,
clang::ParsingDeclSpec&, clang::AccessSpecifier)
(/scratch/software/clang-trunk/bin/clang-13+0x5b756f6)
#19 0x000055ded0511ce1
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*, clang::AccessSpecifier) (.part.0) Parser.cpp:0:0
#20 0x000055ded05184e7
clang::Parser::ParseExternalDeclaration(clang::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*) (/scratch/software/clang-trunk/bin/clang-13+0x5b7c4e7)
#21 0x000055ded0519a7e
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool)
(/scratch/software/clang-trunk/bin/clang-13+0x5b7da7e)
#22 0x000055ded0519e29
clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&)
(/scratch/software/clang-trunk/bin/clang-13+0x5b7de29)
#23 0x000055ded050c29a clang::ParseAST(clang::Sema&, bool, bool)
(/scratch/software/clang-trunk/bin/clang-13+0x5b7029a)
#24 0x000055decf453968 clang::CodeGenAction::ExecuteAction()
(/scratch/software/clang-trunk/bin/clang-13+0x4ab7968)
#25 0x000055deced03599 clang::FrontendAction::Execute()
(/scratch/software/clang-trunk/bin/clang-13+0x4367599)
#26 0x000055decec967e6
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/scratch/software/clang-trunk/bin/clang-13+0x42fa7e6)
#27 0x000055decede1480
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/scratch/software/clang-trunk/bin/clang-13+0x4445480)
#28 0x000055decbc01696 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/scratch/software/clang-trunk/bin/clang-13+0x1265696)
#29 0x000055decbbfd9d8 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
driver.cpp:0:0
#30 0x000055decbb2b0e6 main
(/scratch/software/clang-trunk/bin/clang-13+0x118f0e6)
#31 0x00007fb9beb8f0b3 __libc_start_main
/build/glibc-ZN95T4/glibc-2.31/csu/../csu/libc-start.c:342:3
#32 0x000055decbbfd54e _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-d57c8d.c
clang-13: note: diagnostic msg: /tmp/mutant-d57c8d.sh
clang-13: note: diagnostic msg:

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

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[llvm-bugs] [Bug 50889] New: ICE: nType; typename llvm::cast_retty<X, Y*>::ret_type = const clang::FunctionProtoType*]: Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed.

[llvm-bugs] [Bug 50889] New: ICE: nType; typename llvm::cast_retty<X, Y>::ret_type = const clang::FunctionProtoType]: Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed.