Dear contributor,

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

In simplebootstrap_build master-aarch64-bootstrap, after:
  | gcc patch https://patchwork.sourceware.org/patch/138704
  | Author: Kito Cheng <kito.cheng@sifive.com>
  | Date:   Wed Jul 8 10:44:48 2026 +0800
  | 
  |     [PATCH] libstdc++: fix UB when ellint phi argument is infinity
  |     
  |     When phi is +/-infinity, the periodicity-reduction step computes
  |     std::floor(infinity) which returns infinity, then casts it to int.
  |     That cast is undefined behavior per [conv.fpint] because infinity is
  | ... 21 lines of the commit log omitted.
  | ... applied on top of baseline commit:
  | ea6244c6f8d tree-ssa-math-opts: separate FMA-deferring trigger from reassoc reorder

Produces Failure:
  | Results changed to
  | # reset_artifacts:
  | -10
  | # true:
  | 0
  | # build_abe bootstrap:
  | # FAILED
  | # First few build errors in logs:
  | # 01:25:52 /home/tcwg-build/workspace/tcwg_gnu_0/abe/snapshots/gcc.git~master/gcc/config/aarch64/aarch64.md:3802:64: error: ‘/*’ within comment [-Werror=comment]
  | # 01:25:52 insn-attrtab.cc:1:5: error: expected unqualified-id before ‘case’
  | # 01:25:52 insn-attrtab.cc:162:7: error: expected unqualified-id before ‘if’
  | # 01:25:52 insn-attrtab.cc:166:7: error: expected unqualified-id before ‘else’
  | # 01:25:52 insn-attrtab.cc:171:5: error: expected unqualified-id before ‘case’
  | # 01:25:52 insn-attrtab.cc:191:7: error: expected unqualified-id before ‘if’
  | # 01:25:52 insn-attrtab.cc:195:7: error: expected unqualified-id before ‘else’
  | # 01:25:52 insn-attrtab.cc:200:5: error: expected unqualified-id before ‘case’
  | # 01:25:52 insn-attrtab.cc:218:7: error: expected unqualified-id before ‘if’
  | # 01:25:52 insn-attrtab.cc:222:7: error: expected unqualified-id before ‘else’
  | 
  | From
  | # reset_artifacts:
  | -10
  | # true:
  | 0
  | # build_abe bootstrap:
  | 1

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

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:

You can find the failure logs in
 * http://54.172.246.49:9090/jobs/tcwg_simplebootstrap_build--master-aarch64-bootstrap-precommit/builds/10920/archive/artifacts/artifacts.precommit/
The full lists of regressions and improvements as well as configure and make commands are in
 * http://54.172.246.49:9090/jobs/tcwg_simplebootstrap_build--master-aarch64-bootstrap-precommit/builds/10920/archive/artifacts/artifacts.precommit/notify/

Current build   : http://54.172.246.49:9090/jobs/tcwg_simplebootstrap_build--master-aarch64-bootstrap-precommit/builds/10920/archive/artifacts/
Reference build : http://54.172.246.49:9090/jobs/tcwg_simplebootstrap_build--master-aarch64-bootstrap-build/builds/10197/archive/artifacts/

Warning: we do not enable maintainer-mode nor automatically update
generated files, which may lead to failures if the patch modifies the
master files.