"LLVM ERROR: LEB is outside Varint32 range" when dealing with large complex<double> array

[gtrrebel]

I was working with https://ahti.space/git/shikhin/tjsm and run into an issue with big complex arrays. The steps I did to run into the issue:

cloned https://ahti.space/git/shikhin/tjsm
replaced main.cpp under src by the following simple c++ file: https://p.ahti.space/f8d37e.html
ran "emcmake cmake .." in a build directory (after sourcing emscripten)
ran "make" in a build directory.

It seems that something goes wrong when main.cpp contains a large complex array, of size between 2^27 and 2^28. For size 200000000 and some other sizes close to lower bound one obtains error:

"LLVM ERROR: LEB is outside Varint32 range"

while sizes close to upper bound one obtains similar error message but with

"LLVM ERROR: section size does not fit in a uint32_t" instead

For some values (size 2^28 - 1000 array for instance) instead:

"wasm-ld: error: lto.tmp: Function extends beyond buffer"

If the array size is smaller than 2^27, compilation seems to work fine, and for bigger than 2^28, the compiler notices that the array is too large.

Version of emscripten/emsdk:
emcc (Emscripten gcc/clang-like replacement + linker emulating GNU ld) 4.0.7 (8dc91db)
clang version 21.0.0git (https:/github.com/llvm/llvm-project 57025b42c43b2f14f7e58692bc19cd53d1b8a45e)
Target: wasm32-unknown-emscripten
Thread model: posix
InstalledDir: /Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin

Failing command line in full: (This is the output from make)
[ 50%] Linking CXX executable ../public/wasm-main.js
LLVM ERROR: LEB is outside Varint32 range
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0. Program arguments: /Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/wasm-ld -o ../public/wasm-main.wasm -lembind-rtti CMakeFiles/wasm-main.dir/src/main.cpp.o -L/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten/lto -L/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/emscripten/src/lib /Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten/lto/crtbegin.o -lGL-mt-getprocaddr -lal -lhtml5 -lstubs -lnoexit -lc-mt -ldlmalloc-mt -lcompiler_rt-mt -lc++-mt-noexcept -lc++abi-mt-noexcept -lsockets-mt -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr /var/folders/l8/wr002pq55q9b2nmwzc51vtgm0000gn/T/tmpkkl81nnelibemscripten_js_symbols.so --import-memory --shared-memory --strip-debug -u__cxa_atexit --export=malloc --export=free --export=_emscripten_stack_alloc --export=__getTypeName --export=_emscripten_thread_free_data --export=_emscripten_thread_crashed --export=_embind_initialize_bindings --export=__wasm_call_ctors --export=_emscripten_tls_init --export=_emscripten_thread_init --export=emscripten_stack_get_current --export=_emscripten_stack_restore --export=emscripten_stack_set_limits --export=_emscripten_thread_exit --export-if-defined=__start_em_asm --export-if-defined=__stop_em_asm --export-if-defined=__start_em_lib_deps --export-if-defined=__stop_em_lib_deps --export-if-defined=__start_em_js --export-if-defined=__stop_em_js --export-if-defined=main --export-if-defined=__main_argc_argv --export-table -z stack-size=65536 --no-growable-memory --initial-memory=52428800 --no-entry --table-base=1 --global-base=1024
#0 0x000000010f531678 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x10015b678)
#1 0x000000010f52edf5 llvm::sys::RunSignalHandlers() (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x100158df5)
#2 0x000000010f532272 SignalHandler(int, __siginfo*, void*) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x10015c272)
#3 0x00007ff803587e1d (/usr/lib/system/libsystem_platform.dylib+0x7ff800482e1d)
#4 0x00007faf9770c270
#5 0x00007ff803471b19 (/usr/lib/system/libsystem_c.dylib+0x7ff80036cb19)
#6 0x000000010f49c364 llvm::report_fatal_error(llvm::Twine const&, bool) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x1000c6364)
#7 0x000000010f49c199 llvm::report_fatal_error(char const*, bool) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x1000c6199)
#8 0x0000000111dd0cb1 readVarint32(llvm::object::WasmObjectFile::ReadContext&) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x1029facb1)
#9 0x0000000111dd17bc readInitExpr(llvm::wasm::WasmInitExpr&, llvm::object::WasmObjectFile::ReadContext&) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x1029fb7bc)
#10 0x0000000111dc8ae6 llvm::object::WasmObjectFile::parseDataSection(llvm::object::WasmObjectFile::ReadContext&) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x1029f2ae6)
#11 0x0000000111dc3383 llvm::object::WasmObjectFile::parseSection(llvm::object::WasmSection&) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x1029ed383)
#12 0x0000000111dc2e78 llvm::object::WasmObjectFile::WasmObjectFile(llvm::MemoryBufferRef, llvm::Error&) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x1029ece78)
#13 0x0000000111dbacd5 llvm::object::ObjectFile::createObjectFile(llvm::MemoryBufferRef, llvm::file_magic, bool) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x1029e4cd5)
#14 0x0000000111dc08c5 llvm::object::SymbolicFile::createSymbolicFile(llvm::MemoryBufferRef, llvm::file_magic, llvm::LLVMContext*, bool) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x1029ea8c5)
#15 0x0000000111d2f2a5 llvm::object::createBinary(llvm::MemoryBufferRef, llvm::LLVMContext*, bool) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x1029592a5)
#16 0x000000010fa05d4a lld::wasm::WasmFileBase::WasmFileBase(lld::wasm::InputFile::Kind, llvm::MemoryBufferRef) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x10062fd4a)
#17 0x000000010fa13c55 lld::wasm::SymbolTable::compileBitcodeFiles() (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x10063dc55)
#18 0x000000010f9fabbe lld::wasm::(anonymous namespace)::LinkerDriver::linkerMain(llvm::ArrayRef<char const*>) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x100624bbe)
#19 0x000000010f9f5049 lld::wasm::link(llvm::ArrayRef<char const*>, llvm::raw_ostream&, llvm::raw_ostream&, bool, bool) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x10061f049)
#20 0x000000010f5471bc lld::unsafeLldMain(llvm::ArrayRef<char const*>, llvm::raw_ostream&, llvm::raw_ostream&, llvm::ArrayReflld::DriverDef, bool) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x1001711bc)
#21 0x000000010f475582 lld_main(int, char**, llvm::ToolContext const&) (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x10009f582)
#22 0x000000010f475f90 main (/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/lld+0x10009ff90)
#23 0x00007ff8031c22cd
em++: error: '/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/bin/wasm-ld -o ../public/wasm-main.wasm -lembind-rtti CMakeFiles/wasm-main.dir/src/main.cpp.o -L/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten/lto -L/Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/emscripten/src/lib /Users/otteheinavaara/Desktop/emscripten/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten/lto/crtbegin.o -lGL-mt-getprocaddr -lal -lhtml5 -lstubs -lnoexit -lc-mt -ldlmalloc-mt -lcompiler_rt-mt -lc++-mt-noexcept -lc++abi-mt-noexcept -lsockets-mt -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr /var/folders/l8/wr002pq55q9b2nmwzc51vtgm0000gn/T/tmpkkl81nnelibemscripten_js_symbols.so --import-memory --shared-memory --strip-debug -u__cxa_atexit --export=malloc --export=free --export=_emscripten_stack_alloc --export=__getTypeName --export=_emscripten_thread_free_data --export=_emscripten_thread_crashed --export=_embind_initialize_bindings --export=__wasm_call_ctors --export=_emscripten_tls_init --export=_emscripten_thread_init --export=emscripten_stack_get_current --export=_emscripten_stack_restore --export=emscripten_stack_set_limits --export=_emscripten_thread_exit --export-if-defined=__start_em_asm --export-if-defined=__stop_em_asm --export-if-defined=__start_em_lib_deps --export-if-defined=__stop_em_lib_deps --export-if-defined=__start_em_js --export-if-defined=__stop_em_js --export-if-defined=main --export-if-defined=__main_argc_argv --export-table -z stack-size=65536 --no-growable-memory --initial-memory=52428800 --no-entry --table-base=1 --global-base=1024' failed (received SIGABRT (-6))
make[2]: *** [../public/wasm-main.js] Error 1
make[1]: *** [CMakeFiles/wasm-main.dir/all] Error 2
make: *** [all] Error 2

Note: Where possible, please avoid attaching screen shots of code or console
logs. Instead, please include them as text so that they may be copied /
searched. To make code blocks more readable and syntax highlighted, please
escape them with three backticks before and after, like this:

int x = 20;