opt crashes in llvm-project/llvm/lib/IR/AutoUpgrade.cpp:4999 #172817
Description
When running opt on this following IR, opt crashes.
I am not sure whether this is a valid case. If using opt in this way is not appropriate, I am open to closing this issue.
llvm version 3186ca2
test.ll
; Function Attrs: nocallback nofree nosync willreturn memory(argmem: readwrite)
declare i32 @llvm.ctlz.i32.p0(i32, i1 immarg) #0
define i32 @c1(i32 %A) {
%for.body.i = call i32 @llvm.ctlz.i32.p0(i32 %A, i1 false)
ret i32 %for.body.i
}
attributes #0 = { nocallback nofree nosync willreturn memory(argmem: readwrite) }
commads
./bin/opt test.ll -S
stacktrace
opt: llvm-project/llvm/lib/IR/AutoUpgrade.cpp:4999: void llvm::UpgradeIntrinsicCall(llvm::CallBase*, llvm::Function*): Assertion `CI->arg_size() == 1 && "Mismatch between function args and call args"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and instructions to reproduce the bug.
Stack dump:
0. Program arguments: ../llvm-dir/llvm-release/llvm-project/build/bin/opt test.ll -S
#0 0x00005596d03b959f llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (../llvm-dir/llvm-release/llvm-project/build/bin/opt+0x560559f)
#1 0x00005596d03b620c llvm::sys::RunSignalHandlers() (../llvm-dir/llvm-release/llvm-project/build/bin/opt+0x560220c)
#2 0x00005596d03b63a7 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#3 0x00007f6704a95420 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x14420)
#4 0x00007f67040e200b raise /build/glibc-LcI20x/glibc-2.31/signal/../sysdeps/unix/sysv/linux/raise.c:51:1
#5 0x00007f67040c1859 abort /build/glibc-LcI20x/glibc-2.31/stdlib/abort.c:81:7
#6 0x00007f67040c1729 get_sysdep_segment_value /build/glibc-LcI20x/glibc-2.31/intl/loadmsgcat.c:509:8
#7 0x00007f67040c1729 _nl_load_domain /build/glibc-LcI20x/glibc-2.31/intl/loadmsgcat.c:970:34
#8 0x00007f67040d2fd6 (/lib/x86_64-linux-gnu/libc.so.6+0x33fd6)
#9 0x00005596cff98281 llvm::UpgradeIntrinsicCall(llvm::CallBase*, llvm::Function*) (../llvm-dir/llvm-release/llvm-project/build/bin/opt+0x51e4281)
#10 0x00005596cffa6e3a llvm::UpgradeCallsToIntrinsic(llvm::Function*) (../llvm-dir/llvm-release/llvm-project/build/bin/opt+0x51f2e3a)
#11 0x00005596cfd56776 llvm::LLParser::validateEndOfModule(bool) (../llvm-dir/llvm-release/llvm-project/build/bin/opt+0x4fa2776)
#12 0x00005596cfd9120b llvm::LLParser::Run(bool, llvm::function_ref<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>> (llvm::StringRef, llvm::StringRef)>) (../llvm-dir/llvm-release/llvm-project/build/bin/opt+0x4fdd20b)
#13 0x00005596cfd36839 parseAssemblyInto(llvm::MemoryBufferRef, llvm::Module*, llvm::ModuleSummaryIndex*, llvm::SMDiagnostic&, llvm::SlotMapping*, bool, llvm::function_ref<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>> (llvm::StringRef, llvm::StringRef)>, llvm::AsmParserContext*) Parser.cpp:0:0
#14 0x00005596cfd36a05 llvm::parseAssembly(llvm::MemoryBufferRef, llvm::SMDiagnostic&, llvm::LLVMContext&, llvm::SlotMapping*, llvm::function_ref<std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>> (llvm::StringRef, llvm::StringRef)>, llvm::AsmParserContext*) (../llvm-dir/llvm-release/llvm-project/build/bin/opt+0x4f82a05)
#15 0x00005596cfd31531 llvm::parseIR(llvm::MemoryBufferRef, llvm::SMDiagnostic&, llvm::LLVMContext&, llvm::ParserCallbacks, llvm::AsmParserContext*) (../llvm-dir/llvm-release/llvm-project/build/bin/opt+0x4f7d531)
#16 0x00005596cfd33906 llvm::parseIRFile(llvm::StringRef, llvm::SMDiagnostic&, llvm::LLVMContext&, llvm::ParserCallbacks, llvm::AsmParserContext*) (../llvm-dir/llvm-release/llvm-project/build/bin/opt+0x4f7f906)
#17 0x00005596cb5f5222 optMain (../llvm-dir/llvm-release/llvm-project/build/bin/opt+0x841222)
#18 0x00007f67040c3083 __libc_start_main /build/glibc-LcI20x/glibc-2.31/csu/../csu/libc-start.c:342:3
#19 0x00005596cb5edeae _start (../llvm-dir/llvm-release/llvm-project/build/bin/opt+0x839eae)