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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_speed-cpu2017rate/llvm-arm-master-O3 after:
| 31 commits in llvm
| a3cab1fa17eb [X86][MC] Support encoding/decoding for PUSHP/POPP (#73092)
| d76d8e541dab [AMDGPU][NFC] Update GISel memory-legalizer-atomic-fence test (#72829)
| 083a53971758 clang/CodeGen/RISCV: test lowering of math builtins (#71399)
| 49f55d107548 Revert "[Flang] Add partial support for lowering procedure pointer assignment. (#70461)"
| 7414c0db962f [LoongArch] Precommit a test for smul with overflow (NFC) (#73212)
| ... and 26 more commits in llvm
the following benchmarks slowed down by more than 3%:
- slowed down by 4% - 531.deepsjeng_r - from 10630 to 11005 perf samples
the following hot functions slowed down by more than 15% (but their benchmarks slowed down by less than 3%):
- slowed down by 50% - 538.imagick_r:libc.so.6 - from 2 to 3 perf samples
- slowed down by 50% - 538.imagick_r:[.] _IO_fread - from 2 to 3 perf samples
- slowed down by 100% - 544.nab_r:[.] __vfscanf_internal - from 1 to 2 perf samples
The configuration of this build is:
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: Clang + Glibc + LLVM Linker
- Version: all components were built from their tip of trunk
- Target: arm-linux-gnueabihf
- Compiler flags: O3
- Hardware: NVidia TK1 4x Cortex-A15
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_speed-cpu2017rate--llvm-arm-master-O3-build/103/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_bmk-code_speed-cpu2017rate--llvm-arm-master-O3-build/101/artifact/artifacts
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