[clang] [llvm] [CGData][ThinLTO] Global Outlining with Two-CodeGen Rounds (PR #90933)

[LLVM Continuous Integration via cfe-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-ppc64-aix` running on `aix-ppc64` while building `clang,llvm` at step 3 "clean-build-dir".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/64/builds/1190

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 3 (clean-build-dir) failure: Delete failed. (failure) (timed out)
Step 5 (build-unified-tree) failure: build (failure)
...
1386.006 [3967/10/1190] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ValueLatticeUtils.cpp.o
1388.863 [3966/10/1191] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/TargetTransformInfo.cpp.o
1391.228 [3965/10/1192] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/UniformityAnalysis.cpp.o
1395.461 [3964/10/1193] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/StackSafetyAnalysis.cpp.o
1401.264 [3963/10/1194] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/TargetLibraryInfo.cpp.o
1402.935 [3962/10/1195] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/UpdateCompilerUsed.cpp.o
1403.156 [3961/10/1196] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/VectorUtils.cpp.o
1406.575 [3960/10/1197] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ValueTracking.cpp.o
1407.006 [3959/10/1198] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/DXContainerPSVInfo.cpp.o
1407.994 [3958/10/1199] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTO.cpp.o
FAILED: lib/LTO/CMakeFiles/LLVMLTO.dir/LTO.cpp.o 
/usr/local/clang-17.0.2/bin/clang++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_LARGE_FILE_API -D_XOPEN_SOURCE=700 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/build/lib/LTO -I/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/lib/LTO -I/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/build/include -I/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/include -mcmodel=large -fPIC -Werror -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -std=c++17  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -MD -MT lib/LTO/CMakeFiles/LLVMLTO.dir/LTO.cpp.o -MF lib/LTO/CMakeFiles/LLVMLTO.dir/LTO.cpp.o.d -o lib/LTO/CMakeFiles/LLVMLTO.dir/LTO.cpp.o -c /home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/lib/LTO/LTO.cpp
/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/lib/LTO/LTO.cpp:2087:25: error: moving a temporary object prevents copy elision [-Werror,-Wpessimizing-move]
 2087 |       AddStream, Cache, std::move(IR.getResult()), CombinedHash);
      |                         ^
/home/powerllvm/powerllvm_env/aix-ppc64/clang-ppc64-aix/llvm-project/llvm/lib/LTO/LTO.cpp:2087:25: note: remove std::move call here
 2087 |       AddStream, Cache, std::move(IR.getResult()), CombinedHash);
      |                         ^~~~~~~~~~              ~
1 error generated.
1408.126 [3958/9/1200] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOModule.cpp.o
1408.365 [3958/8/1201] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/ConstantPools.cpp.o
1408.815 [3958/7/1202] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOCodeGenerator.cpp.o
1410.461 [3958/6/1203] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/GOFFObjectWriter.cpp.o
1410.509 [3958/5/1204] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTOBackend.cpp.o
1412.102 [3958/4/1205] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/MCAsmBackend.cpp.o
1412.132 [3958/3/1206] Building CXX object lib/MC/CMakeFiles/LLVMMC.dir/ELFObjectWriter.cpp.o
1422.635 [3958/2/1207] Building CXX object lib/Analysis/CMakeFiles/LLVMAnalysis.dir/ScalarEvolution.cpp.o
1424.659 [3958/1/1208] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/ThinLTOCodeGenerator.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/90933