Compile fails on Manjaro

Describe the bug Stage 2 exits with an error

To Reproduce clone tc-build, and run build-llvm.py

Expected behavior it should compile cleanly

Screenshots [26/4067] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/CodeGenCoverage.cpp.o FAILED: lib/Support/CMakeFiles/LLVMSupport.dir/CodeGenCoverage.cpp.o /home/kristof/android/tc-build/build/llvm/stage1/bin/clang++ -DGTEST_HAS_RTTI=0 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -Ilib/Support -I/home/kristof/android/tc-build/llvm-project/llvm/lib/Support -I/usr/include/libxml2 -Iinclude -I/home/kristof/android/tc-build/llvm-project/llvm/include -fPIC -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -w -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG -std=c++14 -fno-exceptions -fno-rtti -MD -MT lib/Support/CMakeFiles/LLVMSupport.dir/CodeGenCoverage.cpp.o -MF lib/Support/CMakeFiles/LLVMSupport.dir/CodeGenCoverage.cpp.o.d -o lib/Support/CMakeFiles/LLVMSupport.dir/CodeGenCoverage.cpp.o -c /home/kristof/android/tc-build/llvm-project/llvm/lib/Support/CodeGenCoverage.cpp fatal error: error in backend: Cannot emit physreg copy instruction [31/4067] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/CommandLine.cpp.o ninja: build stopped: subcommand failed. Traceback (most recent call last): File “./build-llvm.py”, line 890, in <module> main() File “./build-llvm.py”, line 886, in main do_multistage_build(args, dirs, env_vars) File “./build-llvm.py”, line 858, in do_multistage_build invoke_ninja(args, dirs, stage) File “./build-llvm.py”, line 793, in invoke_ninja subprocess.run(‘ninja’, check=True, cwd=build_folder) File “/usr/lib/python3.8/subprocess.py”, line 512, in run raise CalledProcessError(retcode, process.args, subprocess.CalledProcessError: Command ‘ninja’ returned non-zero exit status 1.

Environment (please complete the following information):

• Command you ran: ./build-llvm.py
• Distribution: Manjaro Linux latest
• Python version: 3.8.1

[msfjarvis]

1132f87fbf1373835d7030354f6210c5dab62c3e

I had to step out for a bit, but builds were running in the mean time. --stage-1-only builds fine on this, and the standard build fails with the same issue you saw. I just moved to ToT at https://github.com/llvm/llvm-project/commit/92570718a86cc4c23108b596002114ab25857b14 and --stage-1-only builds fine once more. Will report back once the standard 2 stage build finishes on this.

[kristofpetho]

1132f87fbf1373835d7030354f6210c5dab62c3e

Thank you!