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

[Dieter Nützel]

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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