error: 'iga::Operand::m_type' will be initialized after [-Werror=reorder]

[aubreyli]

Hi,

when I moved the build script from the system with GCC 8.5.0 to GCC 12.2.1, I run into the following error,
Is this a known issue? Any suggestions?

Thanks,
-Aubrey

---

$ /usr/bin/g++ --version
g++ (GCC) 12.2.1 20221121 (Anolis OS 12.2.1-2)
Copyright (C) 2022 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

cd /home/aubrey/work/BUILD/igc-1.0.15468.7/build/IGC/visa/iga/IGALibrary && /usr/bin/g++ -DCL_KHR_FP64_EXT -DCOMPILE_DEFINITIONS -DGED_external -DGHAL3D=USC -DGIT_COMMIT_HASH="9e146a0999d49ca4109252b0328039c559973947" -DICBE_LINUX -DIGA_VERSION_SUFFIX="-9e146a099+" -DIGC_CMAKE -DIGC_EXPORTS=1 -DIGC_SPIRV_ENABLED -DIGC_SPIRV_TOOLS_ENABLED -DIGC_VC_ENABLED -DINSIDE_PLUGIN -DISTDLIB_UMD -DLINUX -DLLVM_VERSION_MAJOR=14 -DNDEBUG -DNOMINMAX -DSTD_CALL -DUSC_EXPORTS=1 -DUSE_MMX -DUSE_SSE -DUSE_SSE2 -DUSE_SSE3 -DUSE_SSSE3 -D_AMD64_ -D_COMPILER_DLL_ -D_CONSOLE -D_CRT_SECURE_NO_WARNINGS -D_HAS_EXCEPTIONS=1 -D_IGC_ -D_LIB -D_SCL_SECURE_NO_WARNINGS -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS -I/home/aubrey/work/BUILD/igc-1.0.15468.7/build/IGC/llvm-deps/src/lld/ELF/../include -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/WrapperLLVM/include -I/home/aubrey/work/BUILD/igc-1.0.15468.7/build/IGC/autogen -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/common -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/.. -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/../Common -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/../3d/common -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/../inc -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/../inc/common -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/../inc/common/Compiler -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/../inc/common/Compiler/API -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/../visa/include -I/home/aubrey/work/BUILD/igc-1.0.15468.7/build/IGC/Release -I/home/aubrey/work/BUILD/igc-1.0.15468.7/build/IGC -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/AdaptorOCL/ocl_igc_shared/executable_format -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/AdaptorOCL -I/home/aubrey/work/BUILD/igc-1.0.15468.7/build/IGC/AdaptorOCL/ocl_igc_interface/impl -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/Options -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/Options/include -I/home/aubrey/work/BUILD/igc-1.0.15468.7/build/IGC/Options/include -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/../inc/common/Compiler/common -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/AdaptorOCL/cif/cif/.. -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/ZEBinWriter/zebin/source -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/ZEBinWriter/zebin/source/autogen -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/../../SPIRV-Headers/include -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/IGC/../../SPIRV-Tools/include -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/../GEDLibrary/GED_external/build/autogen-intel64 -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/../GEDLibrary/GED_external/Source/common -I/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/../../../inc -isystem /home/aubrey/work/BUILD/igc-1.0.15468.7/build/IGC/llvm-deps/src/llvm/include -isystem /home/aubrey/work/BUILD/igc-1.0.15468.7/build/IGC/llvm-deps/build/src/include -flto=auto -ffat-lto-objects -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/anolis/anolis-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/anolis/anolis-annobin-cc1 -m64 -march=x86-64-v2 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -fexceptions -fdata-sections -ffunction-sections -O2 -fmessage-length=0 -march=corei7 -mstackrealign -fms-extensions -Werror -Wno-unused-parameter -Wno-missing-field-initializers -Wwrite-strings -Wno-long-long -Wswitch -Wno-sign-compare -Wno-unused-result -Wno-enum-compare -Wno-type-limits -Wno-ignored-qualifiers -Wno-shadow -Wformat -Wformat-security -Wno-extra -Wno-write-strings -finline -fno-strict-aliasing -msse -msse2 -msse3 -mssse3 -msse4 -msse4.1 -msse4.2 -Wno-unknown-pragmas -fPIC -Bsymbolic -D_FORTIFY_SOURCE=2 -fstack-protector -finline-functions -funswitch-loops -Wno-maybe-uninitialized -lrt -fno-rtti -fvisibility=hidden -fvisibility-inlines-hidden -DNDEBUG -g -std=gnu++17 -Wmissing-declarations -fexceptions -MD -MT IGC/visa/iga/IGALibrary/CMakeFiles/IGA_OLIB.dir/api/iga_types_swsb.cpp.o -MF CMakeFiles/IGA_OLIB.dir/api/iga_types_swsb.cpp.o.d -o CMakeFiles/IGA_OLIB.dir/api/iga_types_swsb.cpp.o -c /home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/api/iga_types_swsb.cpp
In file included from /home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/api/../IR/Instruction.hpp:22,
from /home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/api/../IR/Block.hpp:19,
from /home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/api/../IR/SWSBSetter.hpp:13,
from /home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/api/iga_types_swsb.cpp:11:
/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/api/../IR/Operand.hpp: In constructor 'iga::Operand::Operand()':
/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/api/../IR/Operand.hpp:186:8: error: 'iga::Operand::m_type' will be initialized after [-Werror=reorder]
186 | Type m_type;
| ^~~~~~
/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/api/../IR/Operand.hpp:159:17: error: 'iga::SrcModifier iga::Operand::::m_regOpSrcMod' [-Werror=reorder]
159 | SrcModifier m_regOpSrcMod;
| ^~~~~~~~~~~~~
/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/api/../IR/Operand.hpp:29:3: error: when initialized here [-Werror=reorder]
29 | Operand()
| ^~~~~~~
/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/api/../IR/Instruction.hpp: In constructor 'iga::Instruction::Instruction(const iga::OpSpec&, iga::ExecSize, iga::ChannelOffset, iga::MaskCtrl)':
/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/api/../IR/Instruction.hpp:307:7: error: 'iga::Instruction::m_instLoc' will be initialized after [-Werror=reorder]
307 | Loc m_instLoc; // source location info we keep this
| ^~~~~~~~~
/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/api/../IR/Instruction.hpp:303:7: error: 'int iga::Instruction::m_instId' [-Werror=reorder]
303 | int m_instId; // unique id for this instruction
| ^~~~~~~~
/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/api/../IR/Instruction.hpp:54:3: error: when initialized here [-Werror=reorder]
54 | Instruction(const OpSpec &os, ExecSize execSize, ChannelOffset chOff,
| ^~~~~~~~~~~
/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/api/../IR/Instruction.hpp:306:11: error: 'iga::Instruction::m_pc' will be initialized after [-Werror=reorder]
306 | int32_t m_pc; // the encode/decode PC for this instruction
| ^~~~
/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/api/../IR/Instruction.hpp:292:7: error: 'int iga::Instruction::m_sendDstLength' [-Werror=reorder]
292 | int m_sendDstLength; // -1 if unknown
| ^~~~~~~~~~~~~~~
/home/aubrey/work/BUILD/igc-1.0.15468.7/igc/visa/iga/IGALibrary/api/../IR/Instruction.hpp:54:3: error: when initialized here [-Werror=reorder]
54 | Instruction(const OpSpec &os, ExecSize execSize, ChannelOffset chOff,
| ^~~~~~~~~~~
cc1plus: all warnings being treated as errors
make[2]: *** [IGC/visa/iga/IGALibrary/CMakeFiles/IGA_OLIB.dir/build.make:90: IGC/visa/iga/IGALibrary/CMakeFiles/IGA_OLIB.dir/api/iga_types_swsb.cpp.o] Error 1
make[2]: Leaving directory '/home/aubrey/work/BUILD/igc-1.0.15468.7/build'
make[1]: *** [CMakeFiles/Makefile2:35790: IGC/visa/iga/IGALibrary/CMakeFiles/IGA_OLIB.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....

[amielcza]

Hi @aubreyli , I cannot reproduce the issue on g++-12 on Your IGC version. Could you please provide a reproducer so that I can begin working on the problem or share Your build scripts.

Thanks,
Aleksander