[Bug] 0.17.0 fails with GCC14 with: error: control reaches end of non-void function [-Werror=return-type]

[ggardet]

0.17.0 fails with GCC14 (on openSSUE Tumbleweed) with: error: control reaches end of non-void function [-Werror=return-type]

Expected behavior

Build should succeed with GCC14.

Actual behavior

Build fails with:

[  247s] /home/abuild/rpmbuild/BUILD/tvm-0.17.0/src/meta_schedule/cost_model/../../support/base64.h: In member function ‘virtual size_t tvm::support::Base64OutStream::Read(void*, size_t)’:
[  247s] /home/abuild/rpmbuild/BUILD/tvm-0.17.0/src/meta_schedule/cost_model/../../support/base64.h:253:19: error: control reaches end of non-void function [-Werror=return-type]
[  247s]   253 |     LOG(FATAL) << "Base64OutStream do not support read";
[  247s]       |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[  247s] cc1plus: some warnings being treated as errors
[  247s] make[2]: *** [CMakeFiles/tvm_objs.dir/build.make:989: CMakeFiles/tvm_objs.dir/src/meta_schedule/cost_model/cost_model.cc.o] Error 1

Environment

openSUSE Tumbleweed
TVM 0.17.0

Steps to reproduce

Try to build with GCC14.

Triage

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• needs-triage

[ggardet]

If I add -Wno-error=return-type as workaround, I get the following errors:

[   50s] [  2%] Building CXX object CMakeFiles/tvm_runtime_objs.dir/src/runtime/disco/disco_worker.cc.o
[   50s] /usr/bin/c++ -DDMLC_USE_FOPEN64=0 -DDMLC_USE_LOGGING_LIBRARY="<tvm/runtime/logging.h>" -DNDEBUG -DNDEBUG=1 -DTVM_ENABLE_SPIRV=1 -DTVM_INDEX_DEFAULT_I64=1 -DTVM_LLVM_HAS_AARCH64_TARGET=1 -DTVM_LLVM_VERSION=140 -DTVM_THREADPOOL_USE_OPENMP=0 -DTVM_USE_LIBBACKTRACE=0 -DUSE_FALLBACK_STL_MAP=0 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/abuild/rpmbuild/BUILD/tvm-0.17.0/include -I/home/abuild/rpmbuild/BUILD/tvm-0.17.0/3rdparty/libcrc/include -isystem /usr/include/dlpack -isystem /usr/include/dmlc -isystem /usr/include/rang -isystem /home/abuild/rpmbuild/BUILD/tvm-0.17.0/3rdparty/compiler-rt -isystem /home/abuild/rpmbuild/BUILD/tvm-0.17.0/3rdparty/picojson -isystem /home/abuild/rpmbuild/BUILD/tvm-0.17.0/3rdparty/OpenCL-Headers -isystem /usr/include/spirv-tools -isystem /usr/include/spirv/unified1 -isystem /usr/include/openblas -std=c++17 -faligned-new -O2 -Wall -fPIC -mbranch-protection=standard -O2 -Wall -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -Werror=return-type  -g -Wno-error=return-type -O2 -g -DNDEBUG -ffile-prefix-map=..=/home/abuild/rpmbuild/BUILD/tvm-0.17.0 -MD -MT CMakeFiles/tvm_runtime_objs.dir/src/runtime/disco/disco_worker.cc.o -MF CMakeFiles/tvm_runtime_objs.dir/src/runtime/disco/disco_worker.cc.o.d -o CMakeFiles/tvm_runtime_objs.dir/src/runtime/disco/disco_worker.cc.o -c /home/abuild/rpmbuild/BUILD/tvm-0.17.0/src/runtime/disco/disco_worker.cc
[   50s] In file included from /home/abuild/rpmbuild/BUILD/tvm-0.17.0/src/runtime/disco/./protocol.h:35,
[   50s]                  from /home/abuild/rpmbuild/BUILD/tvm-0.17.0/src/runtime/disco/disco_worker.cc:26:
[   50s] /home/abuild/rpmbuild/BUILD/tvm-0.17.0/src/runtime/disco/./../../support/base64.h:209:10: error: conflicting return type specified for ‘virtual size_t tvm::support::Base64InStream::Write(const void*, size_t)’
[   50s]   209 |   size_t Write(const void* ptr, size_t size) final {
[   50s]       |          ^~~~~
[   50s] In file included from /home/abuild/rpmbuild/BUILD/tvm-0.17.0/include/tvm/runtime/module.h:29,
[   50s]                  from /home/abuild/rpmbuild/BUILD/tvm-0.17.0/include/tvm/runtime/disco/builtin.h:23,
[   50s]                  from /home/abuild/rpmbuild/BUILD/tvm-0.17.0/src/runtime/disco/disco_worker.cc:19:
[   50s] /usr/include/dmlc/io.h:44:16: note: overridden function is ‘virtual void dmlc::Stream::Write(const void*, size_t)’
[   50s]    44 |   virtual void Write(const void *ptr, size_t size) = 0;
[   50s]       |                ^~~~~
[   50s] /home/abuild/rpmbuild/BUILD/tvm-0.17.0/src/runtime/disco/./../../support/base64.h:232:10: error: conflicting return type specified for ‘virtual size_t tvm::support::Base64OutStream::Write(const void*, size_t)’
[   50s]   232 |   size_t Write(const void* ptr, size_t size) final {
[   50s]       |          ^~~~~
[   50s] /usr/include/dmlc/io.h:44:16: note: overridden function is ‘virtual void dmlc::Stream::Write(const void*, size_t)’
[   50s]    44 |   virtual void Write(const void *ptr, size_t size) = 0;
[   50s]       |                ^~~~~
[   50s] /home/abuild/rpmbuild/BUILD/tvm-0.17.0/src/runtime/disco/./../../support/base64.h: In member function ‘virtual size_t tvm::support::Base64OutStream::Read(void*, size_t)’:
[   50s] /home/abuild/rpmbuild/BUILD/tvm-0.17.0/src/runtime/disco/./../../support/base64.h:253:19: warning: control reaches end of non-void function [-Wreturn-type]
[   50s]   253 |     LOG(FATAL) << "Base64OutStream do not support read";
[   50s]       |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[   50s] make[2]: *** [CMakeFiles/tvm_runtime_objs.dir/build.make:191: CMakeFiles/tvm_runtime_objs.dir/src/runtime/disco/disco_worker.cc.o] Error 1
[   50s] make[2]: Leaving directory '/home/abuild/rpmbuild/BUILD/tvm-0.17.0/build_cmake'
[   50s] make[2]: *** Waiting for unfinished jobs....