On Mon, 18 Jan 2021 16:24:10 +0100 Brendan Jackman <jackmanb@xxxxxxxxxx> wrote: > On Mon, 18 Jan 2021 at 15:38, Jesper Dangaard Brouer <brouer@xxxxxxxxxx> wrote: > > I'm compiling from LLVM 'main' branch (commit e6d758de82b6) but it > > unfortunately fails to compile (see error below). > > > > Any recommended LLVM commit id that works? > > :( > > I'm on 6f4ee6f87060 and things are working. I got compiling to work on this commit. But the error below, were likely caused by my compile machine simply ran out of memory (it "only" have 16GB RAM). I reduced the number of parallel jobs (ninja -j6) and have now successfully compiled devel branch of LLVM. Now the compile of BPF-selftests is possible again. > > > > [...] > > ../include/llvm/ExecutionEngine/Orc/Shared/RPCUtils.h:1513:27: note: remove ‘std::move’ call > > ../include/llvm/ExecutionEngine/Orc/Shared/RPCUtils.h:1519:27: warning: moving a local object in a return statement prevents copy elision [-Wpessimizing-move] > > 1519 | return std::move(Err); > > | ^ > > ../include/llvm/ExecutionEngine/Orc/Shared/RPCUtils.h:1519:27: note: remove ‘std::move’ call > > ../include/llvm/ExecutionEngine/Orc/Shared/RPCUtils.h:1526:29: warning: moving a local object in a return statement prevents copy elision [-Wpessimizing-move] > > 1526 | return std::move(Err); > > | ^ > > ../include/llvm/ExecutionEngine/Orc/Shared/RPCUtils.h:1526:29: note: remove ‘std::move’ call > > [2237/3183] Building CXX object tools/clang/lib/ASTMatchers/Dynamic/CMakeFiles/obj.clangDynamicASTMatchers.dir/Registry.cpp.o > > FAILED: tools/clang/lib/ASTMatchers/Dynamic/CMakeFiles/obj.clangDynamicASTMatchers.dir/Registry.cpp.o > > /usr/lib64/ccache/c++ -DGTEST_HAS_RTTI=0 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -Itools/clang/lib/ASTMatchers/Dynamic -I/home/jbrouer/git/llvm-project/clang/lib/ASTMatchers/Dynamic -I/home/jbrouer/git/llvm-project/clang/include -Itools/clang/include -Iinclude -I/home/jbrouer/git/llvm-project/llvm/include -fPIC -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-maybe-uninitialized -Wno-class-memaccess -Wno-redundant-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -fdiagnostics-color -ffunction-sections -fdata-sections -fno-common -Woverloaded-virtual -fno-strict-aliasing -O2 -DNDEBUG -fno-exceptions -fno-rtti -std=c++14 -MD -MT tools/clang/lib/ASTMatchers/Dynamic/CMakeFiles/obj.clangDynamicASTMatchers.dir/Registry.cpp.o -MF tools/clang/lib/ASTMatchers/Dynamic/CMakeFiles/obj.clangDynamicASTMatchers.dir/Registry.cpp.o.d -o tools/clang/lib/ASTMatchers/Dynamic/CMakeFiles/obj.clangDynamicASTMatchers.dir/Registry.cpp.o -c /home/jbrouer/git/llvm-project/clang/lib/ASTMatchers/Dynamic/Registry.cpp > > c++: fatal error: Killed signal terminated program cc1plus > > compilation terminated. > > > > [2255/3183] Building CXX object tools/clang/lib/ASTMatchers/CMakeFiles/obj.clangASTMatchers.dir/ASTMatchFinder.cpp.o > > > > [2262/3183] Building CXX object tools/clang/lib/Sema/CMakeFiles/obj.clangSema.dir/SemaExpr.cpp.o > > ninja: build stopped: subcommand failed. > -- Best regards, Jesper Dangaard Brouer MSc.CS, Principal Kernel Engineer at Red Hat LinkedIn: http://www.linkedin.com/in/brouer
