Dear contributor, our automatic CI has detected problems related to your patch(es).  Please find some details below.  If you have any questions, please follow up on linaro-toolchain@lists.linaro.org mailing list, Libera's #linaro-tcwg channel, or ping your favourite Linaro toolchain developer on the usual project channel.

We appreciate that it might be difficult to find the necessary logs or reproduce the issue locally. If you can't get what you need from our CI within minutes, let us know and we will be happy to help.

We track this report status in https://linaro.atlassian.net/browse/GNU-1199 , please let us know if you are looking at the problem and/or when you have a fix.

In bootstrap_build master-aarch64-bootstrap_ubsan after:

  | commit gcc-14-9955-g436ab7e8e8b
  | Author: Patrick Palka <ppalka@redhat.com>
  | Date:   Sat Apr 13 10:52:32 2024 -0400
  | 
  |     c++/modules: optimize tree flag streaming
  |     
  |     One would expect consecutive calls to bytes_in/out::b for streaming
  |     adjacent bits, as is done for tree flag streaming, to at least be
  |     optimized by the compiler into individual bit operations using
  |     statically known bit positions (and ideally combined into larger sized
  |     reads/writes).
  | ... 91 lines of the commit log omitted.

Results changed to
# reset_artifacts:
-10
# true:
0
# build_abe bootstrap_ubsan:
# FAILED
# First few build errors in logs:
# 00:02:45 ../../../../../../gcc/gcc/cp/module.cc:735:24: error: use of deleted function ‘{anonymous}::bytes_in::bits_in::bits_in(const {anonymous}::bytes_in::bits_in&)’
# 00:02:45 ../../../../../../gcc/gcc/cp/module.cc:796:25: error: use of deleted function ‘{anonymous}::bytes_out::bits_out::bits_out(const {anonymous}::bytes_out::bits_out&)’
# 00:02:45 ../../../../../../gcc/gcc/cp/module.cc:7202:32: error: use of deleted function ‘{anonymous}::bytes_out::bits_out::bits_out(const {anonymous}::bytes_out::bits_out&)’
# 00:02:45 ../../../../../../gcc/gcc/cp/module.cc:7241:31: error: use of deleted function ‘{anonymous}::bytes_in::bits_in::bits_in(const {anonymous}::bytes_in::bits_in&)’
# 00:02:45 ../../../../../../gcc/gcc/cp/module.cc:7807:40: error: use of deleted function ‘{anonymous}::bytes_out::bits_out::bits_out(const {anonymous}::bytes_out::bits_out&)’
# 00:02:45 ../../../../../../gcc/gcc/cp/module.cc:8091:39: error: use of deleted function ‘{anonymous}::bytes_in::bits_in::bits_in(const {anonymous}::bytes_in::bits_in&)’
# 00:02:45 ../../../../../../gcc/gcc/cp/module.cc:16864:47: error: use of deleted function ‘{anonymous}::bytes_out::bits_out::bits_out(const {anonymous}::bytes_out::bits_out&)’
# 00:02:45 ../../../../../../gcc/gcc/cp/module.cc:16963:45: error: use of deleted function ‘{anonymous}::bytes_in::bits_in::bits_in(const {anonymous}::bytes_in::bits_in&)’
# 00:02:45 make[3]: *** [Makefile:1199: cp/module.o] Error 1
# 00:02:45 make[2]: *** [Makefile:5620: all-stage1-gcc] Error 2

From
# reset_artifacts:
-10
# true:
0
# build_abe bootstrap_ubsan:
1

The configuration of this build is:
CI config tcwg_bootstrap_build master-aarch64-bootstrap_ubsan

-----------------8<--------------------------8<--------------------------8<--------------------------
The information below can be used to reproduce a debug environment:

Current build   : https://ci.linaro.org/job/tcwg_bootstrap_build--master-aarch64-bootstrap_ubsan-build/418/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_bootstrap_build--master-aarch64-bootstrap_ubsan-build/417/artifact/artifacts

Reproduce last good and first bad builds: https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/436ab7e8e8b16866d8a807af242560ad4fdff0d6/tcwg_bootstrap_build/master-aarch64-bootstrap_ubsan/reproduction_instructions.txt

Full commit : https://github.com/gcc-mirror/gcc/commit/436ab7e8e8b16866d8a807af242560ad4fdff0d6

List of configurations that regressed due to this commit :
* tcwg_bootstrap_build
** master-aarch64-bootstrap_ubsan
*** Failure
*** https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/436ab7e8e8b16866d8a807af242560ad4fdff0d6/tcwg_bootstrap_build/master-aarch64-bootstrap_ubsan/details.txt
*** https://ci.linaro.org/job/tcwg_bootstrap_build--master-aarch64-bootstrap_ubsan-build/418/artifact/artifacts