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

[Jan Vesely <jan.vesely@xxxxxxxxxxx>]

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@xxxxxxxxxxx> 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@xxxxxxxxxxxxx> 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@xxxxxxxxxxxxx>
> 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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