Dear contributor,

Our automatic CI has detected problems related to your patch(es). Please find some details below.

In tcwg_kernel/llvm-master-aarch64-next-allyesconfig, after:
  | commit llvmorg-21-init-5943-gac9049df7e62
  | Author: Henry Jiang <h243jian@uwaterloo.ca>
  | Date:   Fri Mar 21 09:49:10 2025 -0400
  | 
  |     Reland "[Transforms] LoopIdiomRecognize recognize strlen and wcslen (#108985)" (#131412)
  |     
  |     Relands https://github.com/llvm/llvm-project/pull/108985
  |     
  |     This PR continues the effort made in
  | ... 15 lines of the commit log omitted.

Produces Failure:
  | Results changed to
  | # reset_artifacts:
  | -10
  | # build_abe binutils:
  | -9
  | # build_kernel_llvm:
  | -5
  | # build_abe qemu:
  | -2
  | # linux_n_obj:
  | 23757
  | # First few build errors in logs:
  | # 01:55:42 ld.lld: error: undefined symbol: wcslen
  | # 01:56:06 make[2]: *** [scripts/Makefile.vmlinux:77: vmlinux] Error 1
  | # 01:56:06 make[1]: *** [/home/tcwg-buildslave/workspace/tcwg_kernel_1/linux/Makefile:1231: vmlinux] Error 2
  | # 01:56:06 make: *** [Makefile:251: __sub-make] Error 2
  | 
  | From
  | # reset_artifacts:
  | -10
  | # build_abe binutils:
  | -9
  | # build_kernel_llvm:
  | -5
  | # build_abe qemu:
  | -2
  | # linux_n_obj:
  | 23760

Used configuration :
 tcwg_kernel/llvm-master-aarch64-next-allyesconfig

We track this bug report under https://linaro.atlassian.net/browse/LLVM-1635. Please let us know if you have a fix.

If you have any questions regarding this report, please ask on linaro-toolchain@lists.linaro.org mailing list.

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The information below contains the details of the failures, and the ways to reproduce a debug environment:



Current build   : https://ci.linaro.org/job/tcwg_kernel--llvm-master-aarch64-next-allyesconfig-build/350/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_kernel--llvm-master-aarch64-next-allyesconfig-build/349/artifact/artifacts

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/llvm/sha1/ac9049df7e62e2ca4dc5d103593b51639b5715e3/tcwg_kernel/llvm-master-aarch64-next-allyesconfig/reproduction_instructions.txt

Full commit : https://github.com/llvm/llvm-project/commit/ac9049df7e62e2ca4dc5d103593b51639b5715e3