[llvm-bugs] [Bug 50871] New: ICE: llvm::isa_impl_cl<To, const From*>::doit(const From*) [with To = llvm::Function; From = llvm::GlobalValue]: Assertion `Val && "isa<> used on a null pointer"' failed.
via llvm-bugs
llvm-bugs at lists.llvm.org
Fri Jun 25 13:23:54 PDT 2021
https://bugs.llvm.org/show_bug.cgi?id=50871
Bug ID: 50871
Summary: ICE: llvm::isa_impl_cl<To, const From*>::doit(const
From*) [with To = llvm::Function; From =
llvm::GlobalValue]: Assertion `Val && "isa<> used on a
null pointer"' 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
$ clang-trunk -v
clang version 13.0.0 (https://github.com/llvm/llvm-project.git
ef906573a127cffef7cae75d5155c15a8a2a3a5e)
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__((target("sse4.2"))) foo(void) {}
__attribute__((target("arch=rocketlake"))) foo(void) { static outer12; }
$ clang-trunk mutant.c
mutant.c:1:35: warning: type specifier missing, defaults to 'int'
[-Wimplicit-int]
__attribute__((target("sse4.2"))) foo(void) {}
^
mutant.c:1:46: warning: non-void function does not return a value
[-Wreturn-type]
__attribute__((target("sse4.2"))) foo(void) {}
^
mutant.c:2:44: warning: type specifier missing, defaults to 'int'
[-Wimplicit-int]
__attribute__((target("arch=rocketlake"))) foo(void) { static outer12; }
^
mutant.c:2:63: warning: type specifier missing, defaults to 'int'
[-Wimplicit-int]
__attribute__((target("arch=rocketlake"))) foo(void) { static outer12; }
~~~~~~ ^
mutant.c:2:72: warning: non-void function does not return a value
[-Wreturn-type]
__attribute__((target("arch=rocketlake"))) foo(void) { static outer12; }
^
clang-13:
/tmp/tmp.B1HwadcXIH-clang-builder/llvm-project/llvm/include/llvm/Support/Casting.h:104:
static bool llvm::isa_impl_cl<To, const From*>::doit(const From*) [with To =
llvm::Function; From = llvm::GlobalValue]: Assertion `Val && "isa<> used on a
null pointer"' 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_20210625_114100_0f0b/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_20210625_114100_0f0b/delta/perses_result
-ferror-limit 19 -fgnuc-version=4.2.1 -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1
-o /tmp/mutant-c00e66.o -x c mutant.c
1. <eof> parser at end of file
2. Per-file LLVM IR generation
#0 0x000055ad9f8ed1f4 PrintStackTraceSignalHandler(void*) Signals.cpp:0:0
#1 0x000055ad9f8ea9ae SignalHandler(int) Signals.cpp:0:0
#2 0x00007f86101ed3c0 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0)
#3 0x00007f860fc8c18b raise
/build/glibc-ZN95T4/glibc-2.31/signal/../sysdeps/unix/sysv/linux/raise.c:51:1
#4 0x00007f860fc6b859 abort /build/glibc-ZN95T4/glibc-2.31/stdlib/abort.c:81:7
#5 0x00007f860fc6b729 get_sysdep_segment_value
/build/glibc-ZN95T4/glibc-2.31/intl/loadmsgcat.c:509:8
#6 0x00007f860fc6b729 _nl_load_domain
/build/glibc-ZN95T4/glibc-2.31/intl/loadmsgcat.c:970:34
#7 0x00007f860fc7cf36 (/lib/x86_64-linux-gnu/libc.so.6+0x36f36)
#8 0x000055ad9fd4d009
clang::CodeGen::CodeGenModule::emitMultiVersionFunctions()
(/scratch/software/clang-trunk/bin/clang-13+0x3db9009)
#9 0x000055ad9fd4d0b8 clang::CodeGen::CodeGenModule::Release()
(/scratch/software/clang-trunk/bin/clang-13+0x3db90b8)
#10 0x000055ada0a4baba (anonymous
namespace)::CodeGeneratorImpl::HandleTranslationUnit(clang::ASTContext&)
ModuleBuilder.cpp:0:0
#11 0x000055ada0a4a605
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
(/scratch/software/clang-trunk/bin/clang-13+0x4ab6605)
#12 0x000055ada1b02399 clang::ParseAST(clang::Sema&, bool, bool)
(/scratch/software/clang-trunk/bin/clang-13+0x5b6e399)
#13 0x000055ada0a49458 clang::CodeGenAction::ExecuteAction()
(/scratch/software/clang-trunk/bin/clang-13+0x4ab5458)
#14 0x000055ada02f89e9 clang::FrontendAction::Execute()
(/scratch/software/clang-trunk/bin/clang-13+0x43649e9)
#15 0x000055ada028bc36
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/scratch/software/clang-trunk/bin/clang-13+0x42f7c36)
#16 0x000055ada03d6870
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/scratch/software/clang-trunk/bin/clang-13+0x4442870)
#17 0x000055ad9d1f6696 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/scratch/software/clang-trunk/bin/clang-13+0x1262696)
#18 0x000055ad9d1f29d8 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
driver.cpp:0:0
#19 0x000055ad9d1200e6 main
(/scratch/software/clang-trunk/bin/clang-13+0x118c0e6)
#20 0x00007f860fc6d0b3 __libc_start_main
/build/glibc-ZN95T4/glibc-2.31/csu/../csu/libc-start.c:342:3
#21 0x000055ad9d1f254e _start
(/scratch/software/clang-trunk/bin/clang-13+0x125e54e)
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
ef906573a127cffef7cae75d5155c15a8a2a3a5e)
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-ebc4ac.c
clang-13: note: diagnostic msg: /tmp/mutant-ebc4ac.sh
clang-13: note: diagnostic msg:
********************
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