Successfully identified regression in *linux* in CI configuration 
tcwg_bmk_llvm_apm/llvm-master-aarch64-spec2k6-Oz.  So far, this commit has 
regressed CI configurations:
 - tcwg_bmk_llvm_apm/llvm-master-aarch64-spec2k6-Oz

Culprit:
<cut>
commit 9ecccaf9771d3f3bb68ef69d34965b1aad874bd6
Merge: 1e28eed17697 12aca1ce9ee3
Author: Rob Clark <robdcl...@chromium.org>
Date:   Wed Apr 7 11:04:47 2021 -0700

    Merge tag 'drm-msm-fixes-2021-04-02' into msm-next
    
    Pull in fixes from previous cycle
</cut>

Results regressed to (for first_bad == 9ecccaf9771d3f3bb68ef69d34965b1aad874bd6)
# reset_artifacts:
-10
# build_abe binutils:
-9
# build_abe stage1 -- --set gcc_override_configure=--disable-libsanitizer:
-8
# build_abe linux:
-7
# build_abe glibc:
-6
# build_abe stage2 -- --set gcc_override_configure=--disable-libsanitizer:
-5
# build_llvm true:
-3
# true:
0
# benchmark -- -Oz 
artifacts/build-9ecccaf9771d3f3bb68ef69d34965b1aad874bd6/results_id:
1
# 482.sphinx3,[.] OUTLINED_FUNCTION_4                           regressed by 175

from (for last_good == 12aca1ce9ee33af3751aec5e55a5900747cbdd4b)
# reset_artifacts:
-10
# build_abe binutils:
-9
# build_abe stage1 -- --set gcc_override_configure=--disable-libsanitizer:
-8
# build_abe linux:
-7
# build_abe glibc:
-6
# build_abe stage2 -- --set gcc_override_configure=--disable-libsanitizer:
-5
# build_llvm true:
-3
# true:
0
# benchmark -- -Oz 
artifacts/build-12aca1ce9ee33af3751aec5e55a5900747cbdd4b/results_id:
1

Artifacts of last_good build: 
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_apm-llvm-master-aarch64-spec2k6-Oz/7/artifact/artifacts/build-12aca1ce9ee33af3751aec5e55a5900747cbdd4b/
Results ID of last_good: 
apm_64/tcwg_bmk_llvm_apm/bisect-llvm-master-aarch64-spec2k6-Oz/3996
Artifacts of first_bad build: 
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_apm-llvm-master-aarch64-spec2k6-Oz/7/artifact/artifacts/build-9ecccaf9771d3f3bb68ef69d34965b1aad874bd6/
Results ID of first_bad: 
apm_64/tcwg_bmk_llvm_apm/bisect-llvm-master-aarch64-spec2k6-Oz/3987
Build top page/logs: 
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_apm-llvm-master-aarch64-spec2k6-Oz/7/

Configuration details:


Reproduce builds:
<cut>
mkdir investigate-linux-9ecccaf9771d3f3bb68ef69d34965b1aad874bd6
cd investigate-linux-9ecccaf9771d3f3bb68ef69d34965b1aad874bd6

git clone https://git.linaro.org/toolchain/jenkins-scripts

mkdir -p artifacts/manifests
curl -o artifacts/manifests/build-baseline.sh 
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_apm-llvm-master-aarch64-spec2k6-Oz/7/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_apm-llvm-master-aarch64-spec2k6-Oz/7/artifact/artifacts/manifests/build-parameters.sh
 --fail
curl -o artifacts/test.sh 
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_apm-llvm-master-aarch64-spec2k6-Oz/7/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 /linux/ ./ ./bisect/baseline/

cd linux

# Reproduce first_bad build
git checkout --detach 9ecccaf9771d3f3bb68ef69d34965b1aad874bd6
../artifacts/test.sh

# Reproduce last_good build
git checkout --detach 12aca1ce9ee33af3751aec5e55a5900747cbdd4b
../artifacts/test.sh

cd ..
</cut>

History of pending regressions and results: 
https://git.linaro.org/toolchain/ci/base-artifacts.git/log/?h=linaro-local/ci/tcwg_bmk_llvm_apm/llvm-master-aarch64-spec2k6-Oz

Artifacts: 
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_apm-llvm-master-aarch64-spec2k6-Oz/7/artifact/artifacts/
Build log: 
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_apm-llvm-master-aarch64-spec2k6-Oz/7/consoleText

Full commit (up to 1000 lines):
<cut>
commit 9ecccaf9771d3f3bb68ef69d34965b1aad874bd6
Merge: 1e28eed17697 12aca1ce9ee3
Author: Rob Clark <robdcl...@chromium.org>
Date:   Wed Apr 7 11:04:47 2021 -0700

    Merge tag 'drm-msm-fixes-2021-04-02' into msm-next
    
    Pull in fixes from previous cycle

 drivers/gpu/drm/msm/adreno/a5xx_gpu.c      |   4 +-
 drivers/gpu/drm/msm/adreno/a5xx_power.c    |   2 +-
 drivers/gpu/drm/msm/adreno/a6xx_gmu.c      |   2 +-
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c      | 108 ++++++++++++++++++++---------
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c |   4 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c    |  12 ++--
 drivers/gpu/drm/msm/dp/dp_aux.c            |   7 ++
 drivers/gpu/drm/msm/dsi/pll/dsi_pll.c      |   2 +-
 drivers/gpu/drm/msm/dsi/pll/dsi_pll.h      |   6 +-
 drivers/gpu/drm/msm/dsi/pll/dsi_pll_7nm.c  |  11 +--
 drivers/gpu/drm/msm/msm_atomic.c           |   7 +-
 drivers/gpu/drm/msm/msm_drv.c              |  13 ++++
 drivers/gpu/drm/msm/msm_fence.c            |   2 +-
 drivers/gpu/drm/msm/msm_kms.h              |   8 +--
 14 files changed, 128 insertions(+), 60 deletions(-)
</cut>
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