Successfully identified regression in *gcc* in CI configuration tcwg_bmk_gnu_tk1/gnu-master-arm-spec2k6-O3. So far, this commit has regressed CI configurations: - tcwg_bmk_gnu_tk1/gnu-master-arm-spec2k6-O3

Culprit: <cut> commit 5b759cdcb7f863520346e5bf63fcf1d3746c2cc3 Author: Jason Merrill jason@redhat.com Date: Sat Jul 10 05:45:02 2021 -0400

c++: pretty-print TYPE_PACK_EXPANSION better

gcc/cp/ChangeLog:

* ptree.c (cxx_print_type) [TYPE_PACK_EXPANSION]: Also print PACK_EXPANSION_PATTERN. </cut>

Results regressed to (for first_bad == 5b759cdcb7f863520346e5bf63fcf1d3746c2cc3) # reset_artifacts: -10 # build_abe binutils: -9 # build_abe stage1 -- --set gcc_override_configure=--with-mode=arm --set gcc_override_configure=--disable-libsanitizer: -8 # build_abe linux: -7 # build_abe glibc: -6 # build_abe stage2 -- --set gcc_override_configure=--with-mode=arm --set gcc_override_configure=--disable-libsanitizer: -5 # true: 0 # benchmark -- -O3_marm artifacts/build-5b759cdcb7f863520346e5bf63fcf1d3746c2cc3/results_id: 1 # 483.xalancbmk,[.] _ZN11xercesc_2_510ValueStore13isDuplicateOf regressed by 111

from (for last_good == 4c4249b71de3b15ba1e176ce90a57fb7bc54b917) # reset_artifacts: -10 # build_abe binutils: -9 # build_abe stage1 -- --set gcc_override_configure=--with-mode=arm --set gcc_override_configure=--disable-libsanitizer: -8 # build_abe linux: -7 # build_abe glibc: -6 # build_abe stage2 -- --set gcc_override_configure=--with-mode=arm --set gcc_override_configure=--disable-libsanitizer: -5 # true: 0 # benchmark -- -O3_marm artifacts/build-4c4249b71de3b15ba1e176ce90a57fb7bc54b917/results_id: 1

Artifacts of last_good build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu-bisect-tcwg_bmk_tk1-gnu-master-arm... Results ID of last_good: tk1_32/tcwg_bmk_gnu_tk1/bisect-gnu-master-arm-spec2k6-O3/2632 Artifacts of first_bad build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu-bisect-tcwg_bmk_tk1-gnu-master-arm... Results ID of first_bad: tk1_32/tcwg_bmk_gnu_tk1/bisect-gnu-master-arm-spec2k6-O3/2639 Build top page/logs: https://ci.linaro.org/job/tcwg_bmk_ci_gnu-bisect-tcwg_bmk_tk1-gnu-master-arm...

Configuration details:

Reproduce builds: <cut> mkdir investigate-gcc-5b759cdcb7f863520346e5bf63fcf1d3746c2cc3 cd investigate-gcc-5b759cdcb7f863520346e5bf63fcf1d3746c2cc3

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_gnu-bisect-tcwg_bmk_tk1-gnu-master-arm... --fail curl -o artifacts/manifests/build-parameters.sh https://ci.linaro.org/job/tcwg_bmk_ci_gnu-bisect-tcwg_bmk_tk1-gnu-master-arm... --fail curl -o artifacts/test.sh https://ci.linaro.org/job/tcwg_bmk_ci_gnu-bisect-tcwg_bmk_tk1-gnu-master-arm... --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 /gcc/ ./ ./bisect/baseline/

cd gcc

# Reproduce first_bad build git checkout --detach 5b759cdcb7f863520346e5bf63fcf1d3746c2cc3 ../artifacts/test.sh

# Reproduce last_good build git checkout --detach 4c4249b71de3b15ba1e176ce90a57fb7bc54b917 ../artifacts/test.sh

cd .. </cut>

History of pending regressions and results: https://git.linaro.org/toolchain/ci/base-artifacts.git/log/?h=linaro-local/c...

Artifacts: https://ci.linaro.org/job/tcwg_bmk_ci_gnu-bisect-tcwg_bmk_tk1-gnu-master-arm... Build log: https://ci.linaro.org/job/tcwg_bmk_ci_gnu-bisect-tcwg_bmk_tk1-gnu-master-arm...

Full commit (up to 1000 lines): <cut> commit 5b759cdcb7f863520346e5bf63fcf1d3746c2cc3 Author: Jason Merrill jason@redhat.com Date: Sat Jul 10 05:45:02 2021 -0400

c++: pretty-print TYPE_PACK_EXPANSION better

gcc/cp/ChangeLog:

* ptree.c (cxx_print_type) [TYPE_PACK_EXPANSION]: Also print PACK_EXPANSION_PATTERN. --- gcc/cp/ptree.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/gcc/cp/ptree.c b/gcc/cp/ptree.c index 33b73fb24b6..7f140f5f06b 100644 --- a/gcc/cp/ptree.c +++ b/gcc/cp/ptree.c @@ -171,6 +171,7 @@ cxx_print_type (FILE *file, tree node, int indent) return;

case TYPE_PACK_EXPANSION: + print_node (file, "pattern", PACK_EXPANSION_PATTERN (node), indent + 4); print_node (file, "args", PACK_EXPANSION_EXTRA_ARGS (node), indent + 4); return;

</cut>