Is LLVM 13 (git) really ready for testing/development? libclc didn't compile

[Jan Vesely]

One more update. without changing any cmake files the following cmdline
should work:
cmake ../llvm-project/libclc/
-DLLVM_CONFIG=/usr/local/llvm-git/bin/llvm-config
-DCMAKE_LLAsm_FLAGS=-cl-no-stdinc -DCMAKE_CLC_FLAGS=-cl-no-stdinc

Jan
On Wed, Mar 10, 2021 at 1:20 AM Jan Vesely <jan.vesely at rutgers.edu> wrote:

> hi,
>
> sorry the option is actually -cl-no-stdinc. you can add it to
> 'target_compiler_options'.
> I should have a patch ready soon(tm), but time is scarce.
>
> Jan
>
> On Sun, Mar 7, 2021 at 9:51 PM Dieter Nützel <Dieter at nuetzel-hh.de> wrote:
>
>> Hello Jan,
>>
>> I very much appreciate your advice.
>> Tried several places...
>> ...where to put it?
>>
>> Dieter
>>
>> Am 06.03.2021 17:56, schrieb Jan Vesely:
>> > Not Marek, but hope this answer will help.
>> > libclc uses clang CLC preprocessor on .ll files, llvm/clang-13 started
>> > including clc declarations by default (clang
>> > cf3ef15a6ec5e5b45c6c54e8fbe3769255e815ce),
>> > thus corrupting any .ll assembly files that are used by libclc.
>> > Inclusion of the default declarations can be turned off using a
>> > cmdline switch but that remains to be implemented in the libclc build
>> > system.
>> > manually adding '-cl-no-stdinc' should work as a workaround.
>> >
>> > Jan
>> >
>> > On Thu, Mar 4, 2021 at 10:27 PM Dieter Nützel <Dieter at nuetzel-hh.de>
>> > wrote:
>> >
>> >> Hello Marek,
>> >>
>> >> can't compile anything, here.
>> >> Poor Intel Nehalem X3470.
>> >>
>> >> Trying LLVM 12-rc2 later.
>> >>
>> >> Greetings,
>> >> Dieter
>> >>
>> >> llvm-project/libclc> cd build && cmake ../
>> >> -- The CXX compiler identification is GNU 10.2.1
>> >> -- Detecting CXX compiler ABI info
>> >> -- Detecting CXX compiler ABI info - done
>> >> -- Check for working CXX compiler: /usr/bin/c++ - skipped
>> >> -- Detecting CXX compile features
>> >> -- Detecting CXX compile features - done
>> >> LLVM version: 13.0.0git
>> >> LLVM system libs:
>> >> LLVM libs: -lLLVM-13git
>> >> LLVM libdir: /usr/local/lib
>> >> LLVM bindir: /usr/local/bin
>> >> LLVM ld flags: -L/usr/local/lib
>> >> LLVM cxx flags:
>> >>
>> >
>> -I/usr/local/include;-std=c++14;;;-fno-exceptions;-D_GNU_SOURCE;-D__STDC_CONSTANT_MACROS;-D__STDC_FORMAT_MACROS;-D__STDC_LIMIT_MACROS;-fno-rtti;-fno-exceptions
>> >>
>> >> clang: /usr/local/bin/clang
>> >> llvm-as: /usr/local/bin/llvm-as
>> >> llvm-link: /usr/local/bin/llvm-link
>> >> opt: /usr/local/bin/opt
>> >> llvm-spirv: /usr/local/bin/llvm-spirv
>> >>
>> >> -- Check for working CLC compiler: /usr/local/bin/clang
>> >> -- Check for working CLC compiler: /usr/local/bin/clang -- works
>> >> -- Check for working LLAsm compiler: /usr/local/bin/llvm-as
>> >> -- Check for working LLAsm compiler: /usr/local/bin/llvm-as --
>> >> broken
>> >> CMake Error at cmake/CMakeTestLLAsmCompiler.cmake:40 (message):
>> >> The LLAsm compiler "/usr/local/bin/llvm-as" is not able to
>> >> compile a
>> >> simple
>> >> test program.
>> >>
>> >> It fails with the following output:
>> >>
>> >> Change Dir: /opt/llvm-project/libclc/build/CMakeFiles/CMakeTmp
>> >>
>> >> Run Build Command(s):/usr/bin/gmake cmTC_87af9/fast &&
>> >> /usr/bin/gmake
>> >> -f
>> >> CMakeFiles/cmTC_87af9.dir/build.make
>> >> CMakeFiles/cmTC_87af9.dir/build
>> >>
>> >> gmake[1]: Verzeichnis
>> >> „/opt/llvm-project/libclc/build/CMakeFiles/CMakeTmp“ wird
>> >> betreten
>> >>
>> >> Building LLAsm object
>> >> CMakeFiles/cmTC_87af9.dir/testLLAsmCompiler.bc
>> >>
>> >> /usr/local/bin/clang -E -P -x cl
>> >>
>> >>
>> > /opt/llvm-project/libclc/build/CMakeFiles/CMakeTmp/testLLAsmCompiler.ll
>> >>
>> >> -o
>> >> CMakeFiles/cmTC_87af9.dir/testLLAsmCompiler.bc.temp
>> >>
>> >> /usr/local/bin/llvm-as -o
>> >> CMakeFiles/cmTC_87af9.dir/testLLAsmCompiler.bc
>> >> CMakeFiles/cmTC_87af9.dir/testLLAsmCompiler.bc.temp
>> >>
>> >> /usr/local/bin/llvm-as:
>> >> CMakeFiles/cmTC_87af9.dir/testLLAsmCompiler.bc.temp:1:1: error:
>> >> expected
>> >> top-level entity
>> >>
>> >> typedef unsigned char uchar;
>> >>
>> >> ^
>> >>
>> >> gmake[1]: *** [CMakeFiles/cmTC_87af9.dir/build.make:86:
>> >> CMakeFiles/cmTC_87af9.dir/testLLAsmCompiler.bc] Fehler 1
>> >>
>> >> gmake[1]: Verzeichnis
>> >> „/opt/llvm-project/libclc/build/CMakeFiles/CMakeTmp“ wird
>> >> verlassen
>> >>
>> >> gmake: *** [Makefile:140: cmTC_87af9/fast] Fehler 2
>> >>
>> >> CMake will not be able to correctly generate this project.
>> >> Call Stack (most recent call first):
>> >> CMakeLists.txt:127 (enable_language)
>> >>
>> >> -- Configuring incomplete, errors occurred!
>> >> See also
>> >> "/opt/llvm-project/libclc/build/CMakeFiles/CMakeOutput.log".
>> >> See also "/opt/llvm-project/libclc/build/CMakeFiles/CMakeError.log".
>> >>
>> >> CMakeError.log
>> >> Determining if the LLAsm compiler works failed with the following
>> >> output:
>> >> Change Dir: /opt/llvm-project/libclc/build/CMakeFiles/CMakeTmp
>> >>
>> >> Run Build Command(s):/usr/bin/gmake cmTC_87af9/fast &&
>> >> /usr/bin/gmake
>> >> -f CMakeFiles/cmTC_87af9.dir/build.make
>> >> CMakeFiles/cmTC_87af9.dir/build
>> >> gmake[1]: Verzeichnis
>> >> „/opt/llvm-project/libclc/build/CMakeFiles/CMakeTmp“ wird
>> >> betreten
>> >> Building LLAsm object CMakeFiles/cmTC_87af9.dir/testLLAsmCompiler.bc
>> >> /usr/local/bin/clang -E -P     -x cl
>> >>
>> > /opt/llvm-project/libclc/build/CMakeFiles/CMakeTmp/testLLAsmCompiler.ll
>> >>
>> >> -o CMakeFiles/cmTC_87af9.dir/testLLAsmCompiler.bc.temp
>> >> /usr/local/bin/llvm-as -o
>> >> CMakeFiles/cmTC_87af9.dir/testLLAsmCompiler.bc
>> >> CMakeFiles/cmTC_87af9.dir/testLLAsmCompiler.bc.temp
>> >> /usr/local/bin/llvm-as:
>> >> CMakeFiles/cmTC_87af9.dir/testLLAsmCompiler.bc.temp:1:1: error:
>> >> expected
>> >> top-level entity
>> >> typedef unsigned char uchar;
>> >> ^
>> >> gmake[1]: *** [CMakeFiles/cmTC_87af9.dir/build.make:86:
>> >> CMakeFiles/cmTC_87af9.dir/testLLAsmCompiler.bc] Fehler 1
>> >> gmake[1]: Verzeichnis
>> >> „/opt/llvm-project/libclc/build/CMakeFiles/CMakeTmp“ wird
>> >> verlassen
>> >> gmake: *** [Makefile:140: cmTC_87af9/fast] Fehler 2
>> >> _______________________________________________
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>> >> dri-devel at lists.freedesktop.org
>> >> https://lists.freedesktop.org/mailman/listinfo/dri-devel
>>
>
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