[Bug 294067] clang frontend command failed with exit code 134 on the port misc/pytorch Running pass 'AArch64 Instruction Selection' on function xx

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 26 Mar 2026 19:15:58 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294067

            Bug ID: 294067
           Summary: clang frontend command failed with exit code 134 on
                    the port misc/pytorch Running pass 'AArch64
                    Instruction Selection' on function xx
           Product: Base System
           Version: 16.0-CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bin
          Assignee: bugs@FreeBSD.org
          Reporter: yuri@freebsd.org

Log:
https://pkg-status.freebsd.org/ampere2/data/main-arm64-default/pc941e5b33dea_s6580d040861/logs/pytorch-2.8.0_1.log

No assertion message seems to be printed.

Excerpt from the log:
> 1.	<eof> parser at end of file
> 2.	Code generation
> 3.	Running pass 'Function Pass Manager' on module '/wrkdirs/usr/ports/misc/pytorch/work/.build/aten/src/ATen/native/cpu/UnaryOpsKernel.cpp.DEFAULT.cpp'.
> 4.	Running pass 'AArch64 Instruction Selection' on function '@"_ZN3c1012function_refIFvPPcPKlllEE11callback_fnIN2at6native7DEFAULT16VectorizedLoop2dIZZZNSA_L12angle_kernelERNS8_18TensorIteratorBaseEENK3$_0clEvENKUlvE4_clEvEUlNS_4HalfEE_ZZZNSA_L12angle_kernelESD_ENKSE_clEvENKSF_clEvEUlNS8_3vec7DEFAULT10VectorizedISG_EEE_EEEEvlS2_S4_ll"'
> #0 0x000015a787d1099c llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/lib/libprivatellvm.so.19+0x391099c)
> #1 0x000015a787d0e864 llvm::sys::RunSignalHandlers() (/usr/lib/libprivatellvm.so.19+0x390e864)
> #2 0x000015a787cbd198 (/usr/lib/libprivatellvm.so.19+0x38bd198)
> #3 0x000015a77d0fd3ac (/lib/libthr.so.3+0x2b3ac)
> c++: error: clang frontend command failed with exit code 134 (use -v to see invocation)
> FreeBSD clang version 19.1.7 (https://github.com/llvm/llvm-project.git llvmorg-19.1.7-0-gcd708029e0b2)
> Target: aarch64-unknown-freebsd16.0
> Thread model: posix
> InstalledDir: /usr/bin
> Build config: +assertions

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