After llvm commit 75127bce6de78b83b70b898a04473f213451f13e
Author: Qiongsi Wu <q...@ibm.com>
[AIX][ZOS] Excluding merge-objc-interface.m from Tests
the following hot functions slowed down by more than 10% (but their benchmarks
slowed down by less than 2%):
- 433.milc:[.] mult_su3_mat_vec slowed down by 16% from 1615 to 1871 perf
samples
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.
For your convenience, we have uploaded tarballs with pre-processed source and
assembly files at:
- First_bad save-temps:
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-aarch64-spec2k6-O3/27/artifact/artifacts/build-75127bce6de78b83b70b898a04473f213451f13e/save-temps/
- Last_good save-temps:
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-aarch64-spec2k6-O3/27/artifact/artifacts/build-d01ae990e1fd6561ed86dc8004a7147dd09fb13c/save-temps/
- Baseline save-temps:
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-aarch64-spec2k6-O3/27/artifact/artifacts/build-baseline/save-temps/
Configuration:
- Benchmark: SPEC CPU2006
- Toolchain: Clang + Glibc + LLVM Linker
- Version: all components were built from their tip of trunk
- Target: aarch64-linux-gnu
- Compiler flags: -O3
- Hardware: NVidia TX1 4x Cortex-A57
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.
THIS IS THE END OF INTERESTING STUFF. BELOW ARE LINKS TO BUILDS, REPRODUCTION
INSTRUCTIONS, AND THE RAW COMMIT.
This commit has regressed these CI configurations:
- tcwg_bmk_llvm_tx1/llvm-master-aarch64-spec2k6-O3
First_bad build:
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-aarch64-spec2k6-O3/27/artifact/artifacts/build-75127bce6de78b83b70b898a04473f213451f13e/
Last_good build:
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-aarch64-spec2k6-O3/27/artifact/artifacts/build-d01ae990e1fd6561ed86dc8004a7147dd09fb13c/
Baseline build:
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-aarch64-spec2k6-O3/27/artifact/artifacts/build-baseline/
Even more details:
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-aarch64-spec2k6-O3/27/artifact/artifacts/
Reproduce builds:
<cut>
mkdir investigate-llvm-75127bce6de78b83b70b898a04473f213451f13e
cd investigate-llvm-75127bce6de78b83b70b898a04473f213451f13e
# Fetch scripts
git clone https://git.linaro.org/toolchain/jenkins-scripts
# Fetch manifests and test.sh script
mkdir -p artifacts/manifests
curl -o artifacts/manifests/build-baseline.sh
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-aarch64-spec2k6-O3/27/artifact/artifacts/manifests/build-baseline.sh
--fail
curl -o artifacts/manifests/build-parameters.sh
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-aarch64-spec2k6-O3/27/artifact/artifacts/manifests/build-parameters.sh
--fail
curl -o artifacts/test.sh
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-aarch64-spec2k6-O3/27/artifact/artifacts/test.sh
--fail
chmod +x artifacts/test.sh
# Reproduce the baseline build (build all pre-requisites)
./jenkins-scripts/tcwg_bmk-build.sh @@ artifacts/manifests/build-baseline.sh
# Save baseline build state (which is then restored in artifacts/test.sh)
mkdir -p ./bisect
rsync -a --del --delete-excluded --exclude /bisect/ --exclude /artifacts/
--exclude /llvm/ ./ ./bisect/baseline/
cd llvm
# Reproduce first_bad build
git checkout --detach 75127bce6de78b83b70b898a04473f213451f13e
../artifacts/test.sh
# Reproduce last_good build
git checkout --detach d01ae990e1fd6561ed86dc8004a7147dd09fb13c
../artifacts/test.sh
cd ..
</cut>
Full commit (up to 1000 lines):
<cut>
commit 75127bce6de78b83b70b898a04473f213451f13e
Author: Qiongsi Wu <q...@ibm.com>
Date: Fri Oct 8 13:58:32 2021 +0000
[AIX][ZOS] Excluding merge-objc-interface.m from Tests
Objective C is not supported on AIX or ZOS. This patch excludes the newly
added `clang/test/Modules/merge-objc-interface.m` (added by
https://reviews.llvm.org/D110280) from AIX and ZOS testing.
Many existing tests are already disabled by
https://reviews.llvm.org/D109060.
Reviewed By: jsji
Differential Revision: https://reviews.llvm.org/D111406
---
clang/test/Modules/merge-objc-interface.m | 1 +
1 file changed, 1 insertion(+)
diff --git a/clang/test/Modules/merge-objc-interface.m
b/clang/test/Modules/merge-objc-interface.m
index fba06294a26a..f62f541c1a29 100644
--- a/clang/test/Modules/merge-objc-interface.m
+++ b/clang/test/Modules/merge-objc-interface.m
@@ -1,3 +1,4 @@
+// UNSUPPORTED: -zos, -aix
// RUN: rm -rf %t
// RUN: split-file %s %t
// RUN: %clang_cc1 -emit-llvm -o %t/test.bc -F%t/Frameworks %t/test.m \
</cut>
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