[llvm-dev] CMake build of LLVM/clang with -DCMAKE_BUILD_TYPE=Release does not create release versions? (original) (raw)

James Henderson via llvm-dev llvm-dev at lists.llvm.org
Wed Sep 19 02:31:41 PDT 2018

Regarding the Debug build taking hours, are you setting the optimized tablegen option? If you aren't the Debug build will take a very long time. In addition, make sure you have plenty of memory, because the link stages take up a lot on Debug builds. On Wed, 19 Sep 2018 at 10:04, Dennis Luehring via llvm-dev <llvm-dev at lists.llvm.org> wrote:

>because with that generator the CMAKEBUILDTYPE variable is ignored >because it is a "multi-configuration target". thanks for the link, is that a bug in the CMake configuration (or better not getting any warning) or is there just documentation missing? so i can use --config Debug or --config Release and get the correct results - i hope that works the build takes hours strange is that -DCMAKEBUILDTYPE=Debug results in a different build-directory size compared to -DCMAKEBUILDTYPE=Release - so its not fully ignored? Am 19.09.2018 um 10:30 schrieb Boldizsar.Palotas at esa.int: > If I understand correctly, you need to set Release mode within the VS IDE > because with that generator the CMAKEBUILDTYPE variable is ignored > because it is a "multi-configuration target". > > see > https://stackoverflow.com/questions/24460486/cmake-build-type-not-being-used-in-cmakelists-txt > > > > From: Dennis Luehring via llvm-dev <llvm-dev at lists.llvm.org> > To: llvm-dev <llvm-dev at lists.llvm.org> > Date: 2018.09.19 06:11 > Subject: [llvm-dev] CMake build of LLVM/clang with > -DCMAKEBUILDTYPE=Release does not create release versions? > Sent by: "llvm-dev" <llvm-dev-bounces at lists.llvm.org> > > > > my build environment: > > Win7 x64 > VStudio 2017 Community Edition 15.8.4 (latest) > CMake 3.12.1 (x86) > git 2.19.0 (latest, x64) > Python 2.7.2 (x86) > > directory structure > > test > llvm <-- git clone https://github.com/llvm-mirror/llvm_ _> tools > clang <-- git clone https://github.com/llvm-mirror/clang_ _> llvmbuild > > Debug build: clean build, llvmbuild is deleted before > > llvmbuild> cmake -Thost=x64 -G "Visual Studio 15 2017 Win64" > -DCMAKEBUILDTYPE=Debug -DLLVMTARGETSTOBUILD=host > -DLLVMBUILDEXAMPLES=1 -DCLANGBUILDEXAMPLES=1 > -DLLVMINCLUDETESTS=OFF -DLLVMINCLUDEDOCS=OFF ..\llvm > > builds for hours, a few warning, no errors -> llvmbuild is ~44GB > > i can find many working libs/exes(also examples) in > llvmbuild\Debug(lib|bin) > > then i tried to build release versions > > Release build: clean build, llvmbuild is deleted before > > llvmbuild> cmake -Thost=x64 -G "Visual Studio 15 2017 Win64" > -DCMAKEBUILDTYPE=Release -DLLVMTARGETSTOBUILD=host > -DLLVMBUILDEXAMPLES=1 -DCLANGBUILDEXAMPLES=1 > -DLLVMINCLUDETESTS=OFF -DLLVMINCLUDEDOCS=OFF ..\llvm > > builds for hours, a few warning, no errors -> llvmbuild is ~47GB (i > though Release would be smaller?) > > i can find many working libs/exes(also examples) in > llvmbuild\Debug(lib|bin) - the executables seems to be larger as in > "Debug"-Build? > > llvm-build\Release\bin just contains llvm-lit.py > > why is the debug folder populated and where i can find the Release build > libs/exes? > > _> ________________________ > LLVM Developers mailing list > llvm-dev at lists.llvm.org > http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev > > > > This message is intended only for the recipient(s) named above. It may contain proprietary information and/or > protected content. Any unauthorised disclosure, use, retention or dissemination is prohibited. If you have received > this e-mail in error, please notify the sender immediately. ESA applies appropriate organisational measures to protect > personal data, in case of data privacy queries, please contact the ESA Data Protection Officer (dpo at esa.int). > >

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