[Linaro-TCWG-CI] gcc-16-4747-g529c25ed6e0a: Failure on aarch64

Dear contributor,

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

In bootstrap_build master-aarch64-bootstrap_lto, after:
  | commit gcc-16-4747-g529c25ed6e0a
  | Author: Michal Jires <[email protected]>
  | Date:   Mon Aug 25 17:37:19 2025 +0200
  | 
  |     cgraph: Add toplevel_node
  |     
  |     asm_node and symbol_node will now inherit from toplevel_node.
  |     This is now useful for lto partitioning, in future it should be also
  |     useful for toplevel extended assembly.
  | ... 13 lines of the commit log omitted.

Produces Failure:
  | Results changed to
  | # reset_artifacts:
  | -10
  | # true:
  | 0
  | # build_abe bootstrap_lto:
  | # FAILED
  | # First few build errors in logs:
  | # 01:06:35 xg++: internal compiler error: Segmentation fault signal terminated program lto1
  | # 01:06:35 lto-wrapper: fatal error: /home/tcwg-buildslave/workspace/tcwg_gnu_1/abe/builds/aarch64-unknown-linux-gnu/aarch64-unknown-linux-gnu/gcc-gcc.git~master-stage2/./prev-gcc/xg++ returned 4 exit status
  | # 01:06:35 /usr/bin/ld: error: lto-wrapper failed
  | # 01:06:39 collect2: error: ld returned 1 exit status
  | # 01:06:39 make[3]: *** [/home/tcwg-buildslave/workspace/tcwg_gnu_1/abe/snapshots/gcc.git~master/gcc/cp/Make-lang.in:147: cc1plus] Error 1
  | # 01:06:39 make[2]: *** [Makefile:5117: all-stage2-gcc] Error 2
  | # 01:06:39 make[1]: *** [Makefile:26336: stage2-bubble] Error 2
  | # 01:06:39 make: *** [Makefile:1103: all] Error 2
  | 
  | From
  | # reset_artifacts:
  | -10
  | # true:
  | 0
  | # build_abe bootstrap_lto:
  | 1

Used configuration :
 *CI config* tcwg_bootstrap_build master-aarch64-bootstrap_lto
 *configure and test flags:* none, autodetected on aarch64-unknown-linux-gnu

We track this bug report under https://linaro.atlassian.net/browse/GNU-1741. Please let us know if you have a fix.

If you have any questions regarding this report, please ask on [email protected] mailing list.

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

You can find the failure logs in
 * https://ci.linaro.org/job/tcwg_bootstrap_build--master-aarch64-bootstrap_lto-build/952/artifact/artifacts/
The full lists of regressions and improvements as well as configure and make commands are in
 * https://ci.linaro.org/job/tcwg_bootstrap_build--master-aarch64-bootstrap_lto-build/952/artifact/artifacts/notify/

Current build   : https://ci.linaro.org/job/tcwg_bootstrap_build--master-aarch64-bootstrap_lto-build/952/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_bootstrap_build--master-aarch64-bootstrap_lto-build/951/artifact/artifacts

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/529c25ed6e0a06bc0cae21a80263450e49a11716/tcwg_bootstrap_build/master-aarch64-bootstrap_lto/reproduction_instructions.txt

Full commit : See in git+ssh://[email protected]/git/gcc.git