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Subject: Re: [PATCH bpf-next v2] selftests/bpf: Fix pyperf180 compilation failure
 with clang18
From: patchwork-bot+netdevbpf@kernel.org
Message-Id: 
 <169973411116.26445.4952008382763450181.git-patchwork-notify@kernel.org>
Date: Sat, 11 Nov 2023 20:21:51 +0000
References: <20231110193644.3130906-1-yonghong.song@linux.dev>
In-Reply-To: <20231110193644.3130906-1-yonghong.song@linux.dev>
To: Yonghong Song <yonghong.song@linux.dev>
Cc: bpf@vger.kernel.org, ast@kernel.org, andrii@kernel.org,
 daniel@iogearbox.net, kernel-team@fb.com, martin.lau@kernel.org

Hello:

This patch was applied to bpf/bpf-next.git (master)
by Andrii Nakryiko <andrii@kernel.org>:

On Fri, 10 Nov 2023 11:36:44 -0800 you wrote:
> With latest clang18 (main branch of llvm-project repo), when building bpf selftests,
>     [~/work/bpf-next (master)]$ make -C tools/testing/selftests/bpf LLVM=1 -j
> 
> The following compilation error happens:
>     fatal error: error in backend: Branch target out of insn range
>     ...
>     Stack dump:
>     0.      Program arguments: clang -g -Wall -Werror -D__TARGET_ARCH_x86 -mlittle-endian
>       -I/home/yhs/work/bpf-next/tools/testing/selftests/bpf/tools/include
>       -I/home/yhs/work/bpf-next/tools/testing/selftests/bpf -I/home/yhs/work/bpf-next/tools/include/uapi
>       -I/home/yhs/work/bpf-next/tools/testing/selftests/usr/include -idirafter
>       /home/yhs/work/llvm-project/llvm/build.18/install/lib/clang/18/include -idirafter /usr/local/include
>       -idirafter /usr/include -Wno-compare-distinct-pointer-types -DENABLE_ATOMICS_TESTS -O2 --target=bpf
>       -c progs/pyperf180.c -mcpu=v3 -o /home/yhs/work/bpf-next/tools/testing/selftests/bpf/pyperf180.bpf.o
>     1.      <eof> parser at end of file
>     2.      Code generation
>     ...
> 
> [...]

Here is the summary with links:
  - [bpf-next,v2] selftests/bpf: Fix pyperf180 compilation failure with clang18
    https://git.kernel.org/bpf/bpf-next/c/100888fb6d8a

You are awesome, thank you!
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