crashed when lowering memcpy through MLIR

[PikachuHyA]

test case from clang/test/CIR/CodeGen/libc.c

void *memcpy(void *, const void *, unsigned long);
void testMemcpy(void *src, const void *dst, unsigned long size) {
  memcpy(dst, src, size);
 }

test with clang -c libc.c -fclangir -Xclang -emit-mlir -o libc.mlir -fno-clangir-direct-lowering

test2.c:3:10: warning: passing 'const void *' to parameter of type 'void *' discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
    3 |   memcpy(dst, src, size);
      |          ^~~
test2.c:1:20: note: passing argument to parameter here
    1 | void *memcpy(void *, const void *, unsigned long);
      |                    ^
loc(fused["test2.c":2:1, "test2.c":5:2]): error: failed to legalize operation 'cir.func' that was explicitly marked illegal
fatal error: error in backend: The pass manager failed to lower CIR to LLVMIR dialect!
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.	Program arguments: clang -c test2.c -fclangir -Xclang -emit-mlir -o test.mlir -fno-clangir-direct-lowering
1.	<eof> parser at end of file
 #0 0x00000000046259c8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (clang+0x46259c8)
 #1 0x00000000046234be llvm::sys::RunSignalHandlers() (clang+0x46234be)
 #2 0x0000000004624d59 llvm::sys::CleanupOnSignal(unsigned long) (clang+0x4624d59)
 #3 0x0000000004595067 (anonymous namespace)::CrashRecoveryContextImpl::HandleCrash(int, unsigned long) CrashRecoveryContext.cpp:0:0
 #4 0x0000000004594fff llvm::CrashRecoveryContext::HandleExit(int) (clang+0x4594fff)
 #5 0x000000000461f9f7 llvm::sys::Process::Exit(int, bool) (clang+0x461f9f7)
 #6 0x0000000003380be6 (clang+0x3380be6)
 #7 0x000000000459b7c6 llvm::report_fatal_error(llvm::Twine const&, bool) (clang+0x459b7c6)
 #8 0x000000000459b6a6 (clang+0x459b6a6)
 #9 0x0000000005be09e6 cir::lowerFromCIRToMLIR(mlir::ModuleOp, mlir::MLIRContext*) (clang+0x5be09e6)
#10 0x0000000005b653e8 cir::CIRGenConsumer::HandleTranslationUnit(clang::ASTContext&) CIRGenAction.cpp:0:0
#11 0x0000000007f11799 clang::ParseAST(clang::Sema&, bool, bool) (clang+0x7f11799)
#12 0x00000000052ea00f clang::FrontendAction::Execute() (clang+0x52ea00f)
#13 0x000000000525a82d clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (clang+0x525a82d)
#14 0x00000000053d542e clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (clang+0x53d542e)
#15 0x000000000338078b cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (clang+0x338078b)
#16 0x000000000337cd6e ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#17 0x00000000050b0d59 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const::$_0>(long) Job.cpp:0:0
#18 0x0000000004594f96 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (clang+0x4594f96)
#19 0x00000000050b0422 clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (clang+0x50b0422)
#20 0x000000000506d31c clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (clang+0x506d31c)
#21 0x000000000506d627 clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (clang+0x506d627)
#22 0x000000000508a758 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (clang+0x508a758)
#23 0x000000000337c3af clang_main(int, char**, llvm::ToolContext const&) (clang+0x337c3af)
#24 0x000000000338c577 main (clang+0x338c577)
#25 0x00007f61b622e192 __libc_start_main (/lib64/libc.so.6+0x28192)
#26 0x000000000337a9ae _start (clang+0x337a9ae)

[el-ev]

reduced:
void f(void *p) {}

[el-ev]

It seems that the MLIR builtin dialect doesn't a way to express void*