blob: e11da96473e0d9ae1f40cddf423906ab96a350b8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
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-spec2k6/llvm-arm-master-O3 after:
| commit llvmorg-18-init-6129-ga292e7edf8b2
| Author: Zahira Ammarguellat <zahira.ammarguellat@intel.com>
| Date: Tue Sep 19 06:13:02 2023 -0700
|
| Fix math-errno issue (#66381)
|
| Update handling of math errno. This change updates the logic for
| generation of math intrinics in place of math library function calls.
| The previous logic https://reviews.llvm.org/D151834 was incorrectly
| using intrinsics when math errno handling was needed at optimization
| levels above -O0.
| ... 3 lines of the commit log omitted.
the following benchmarks grew in size by more than 1%:
- 470.lbm grew in size by 2% from 11169 to 11408 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:
- Toolchain: Clang + Glibc + LLVM Linker
- Version: all components were built from their tip of trunk
- Target: arm-linux-gnueabihf
- Compiler flags: O3
- 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-spec2k6--llvm-arm-master-O3-build/66/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_bmk-code_size-spec2k6--llvm-arm-master-O3-build/65/artifact/artifacts
Reproduce last good and first bad builds: https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/llvm/sha1/a292e7edf8b2fc51d3e86a96ff5dff45d16bd264/tcwg_bmk-code_size-spec2k6/llvm-arm-master-O3/reproduction_instructions.txt
Full commit : https://github.com/llvm/llvm-project/commit/a292e7edf8b2fc51d3e86a96ff5dff45d16bd264
Latest bug report status : https://linaro.atlassian.net/browse/LLVM-929
List of configurations that regressed due to this commit :
* tcwg_bmk-code_size-spec2k6
** llvm-arm-master-O3
*** 470.lbm grew in size by 2%
*** https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/llvm/sha1/a292e7edf8b2fc51d3e86a96ff5dff45d16bd264/tcwg_bmk-code_size-spec2k6/llvm-arm-master-O3/details.txt
*** https://ci.linaro.org/job/tcwg_bmk-code_size-spec2k6--llvm-arm-master-O3-build/66/
|
