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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.
In CI config tcwg_bmk-code_size-cpu2017fast/gnu-aarch64-master-O3_LTO after:
| commit basepoints/gcc-14-2172-gd88fd2e1d07
| Author: Jan Hubicka <jh@suse.cz>
| Date: Wed Jun 28 23:05:28 2023 +0200
|
| Enable early inlining into always_inline functions
|
| Early inliner currently skips always_inline functions and moreover we ignore
| calls from always_inline in ipa_reverse_postorder. This leads to disabling
| most of propagation done using early optimization that is quite bad when
| early inline functions are not leaf functions, which is now quite common
| in libstdc++.
| ... 27 lines of the commit log omitted.
the following benchmarks grew in size by more than 1%:
- 510.parest_r grew in size by 2% from 1742080 to 1770157 bytes
Below reproducer instructions can be used to re-build both "first_bad" and "last_good" cross-toolchains used in this bisection. Naturally, the scripts will fail when triggerring benchmarking jobs if you don\'t have access to Linaro TCWG CI.
Configuration:
- Benchmark: SPEC CPU2017
- Toolchain: GCC + Glibc + GNU Linker
- Version: all components were built from their tip of trunk
- Target: aarch64-linux-gnu
- Compiler flags: O3 -flto
- Hardware: <unknown>
This benchmarking CI is work-in-progress, and we welcome feedback and suggestions at linaro-toolchain@lists.linaro.org . In our improvement plans is to add support for SPEC CPU2017 benchmarks and provide "perf report/annotate" data behind these reports.
-----------------8<--------------------------8<--------------------------8<--------------------------
The information below can be used to reproduce a debug environment:
Current build : https://ci.linaro.org/job/tcwg_bmk-code_size-cpu2017fast--gnu-aarch64-master-O3_LTO-build/104/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_bmk-code_size-cpu2017fast--gnu-aarch64-master-O3_LTO-build/103/artifact/artifacts
Reproduce last good and first bad builds: https://git.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/d88fd2e1d0720e6f892da9ff48e9a301a7ad0ad4/tcwg_bmk-code_size-cpu2017fast/gnu-aarch64-master-O3_LTO/reproduction_instructions.txt
Full commit : https://github.com/gcc-mirror/gcc/commit/d88fd2e1d0720e6f892da9ff48e9a301a7ad0ad4
Latest bug report status : https://linaro.atlassian.net/browse/GNU-946
List of configurations that regressed due to this commit :
* tcwg_bmk-code_size-cpu2017fast
** gnu-aarch64-master-O3_LTO
*** 510.parest_r grew in size by 2%
*** https://git.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/d88fd2e1d0720e6f892da9ff48e9a301a7ad0ad4/tcwg_bmk-code_size-cpu2017fast/gnu-aarch64-master-O3_LTO/details.txt
*** https://ci.linaro.org/job/tcwg_bmk-code_size-cpu2017fast--gnu-aarch64-master-O3_LTO-build/104/
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