[Linaro-TCWG-CI] gcc-14-8998-gc9ce332b557: FAIL: 2 regressions on aarch64

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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-1154 , please let us know if you are looking at the problem and/or when you have a fix.

In gcc_check master-aarch64 after:

  | commit gcc-14-8998-gc9ce332b557
  | Author: Jonathan Wakely <jwakely@redhat.com>
  | Date:   Wed Feb 7 11:31:10 2024 +0000
  | 
  |     libstdc++: Use 128-bit arithmetic for std::linear_congruential_engine [PR87744]
  |     
  |     For 32-bit targets without __int128 we need to implement the LCG
  |     transition function by hand using 64-bit types.
  |     
  |     We can also slightly simplify the __mod function by using if-constexpr
  |     unconditionally, disabling -Wc++17-extensions warnings with diagnostic
  | ... 13 lines of the commit log omitted.

FAIL: 2 regressions

regressions.sum:
		=== libstdc++ tests ===

Running libstdc++:libstdc++-dg/conformance.exp ...
FAIL: 26_numerics/random/pr60037-neg.cc -std=gnu++17  (test for errors, line 271)
FAIL: 26_numerics/random/pr60037-neg.cc -std=gnu++17 (test for excess errors)


You can find the failure logs in *.log.1.xz files in
 - https://ci.linaro.org/job/tcwg_gcc_check--master-aarch64-build/1609/artifact/artifacts/00-sumfiles/
The full lists of regressions and progressions as well as configure and make commands are in
 - https://ci.linaro.org/job/tcwg_gcc_check--master-aarch64-build/1609/artifact/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 - https://ci.linaro.org/job/tcwg_gcc_check--master-aarch64-build/1609/artifact/artifacts/sumfiles/xfails.xfail

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

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

Current build   : https://ci.linaro.org/job/tcwg_gcc_check--master-aarch64-build/1609/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_gcc_check--master-aarch64-build/1608/artifact/artifacts

Reproduce last good and first bad builds: https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/c9ce332b557bb95987d038d98ea929cdfd1eae1d/tcwg_gcc_check/master-aarch64/reproduction_instructions.txt

Full commit : https://github.com/gcc-mirror/gcc/commit/c9ce332b557bb95987d038d98ea929cdfd1eae1d

List of configurations that regressed due to this commit :
* tcwg_gcc_check
** master-aarch64
*** FAIL: 2 regressions
*** https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/c9ce332b557bb95987d038d98ea929cdfd1eae1d/tcwg_gcc_check/master-aarch64/details.txt
*** https://ci.linaro.org/job/tcwg_gcc_check--master-aarch64-build/1609/artifact/artifacts