[llvm-dev] debugging installation problem

[Eric Christopher via llvm-dev]

Your clang and your llvm don't match, they're often version locked and
you need to make sure both of them are the same-ish revision.

-eric

On Tue, Feb 5, 2019 at 12:22 PM David Callahan via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
>
> Sorry in advance for the limited details.
>
>
>
> I have a build of a recent (Monday) llvm/clang which I have installed in the expected way in my environment but I am getting failures like this;
>
>
>
> In file included from <some directory>/lib/clang/stable/include/x86intrin.h:29:
>
> In file included from <some directory>/lib/clang/stable/include/immintrin.h:118:
>
> <some directory>/lib/clang/stable/include/avx512cdintrin.h:37:20: error: use of undeclared identifier '__builtin_ia32_vpconflictdi_512'
>
>   return (__m512i) __builtin_ia32_vpconflictdi_512 ((__v8di) __A);
>
>                    ^
>
> <some directory>/lib/clang/stable/include/avx512cdintrin.h:59:20: error: use of undeclared identifier '__builtin_ia32_vpconflictsi_512'
>
>   return (__m512i) __builtin_ia32_vpconflictsi_512 ((__v16si) __A);
>
>                    ^
>
> Any suggestions on what might be messed up in the build/installation?
>
> (In other contexts I would delete all build directories and restart but in this workflow I know everything started from clean checkouts)
>
>
>
> Thanks for any help
>
> david
>
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev