Re: [CI-NOTIFY]: TCWG Bisect tcwg_gnu/gnu-master-aarch64-check_bootstrap - Build # 80 - Successful!
Reported to upstream at https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101506 . -- Maxim Kuvyrkov https://www.linaro.org > On 19 Jul 2021, at 02:30, ci_not...@linaro.org wrote: > > Successfully identified regression in *gcc* in CI configuration > tcwg_gnu/gnu-master-aarch64-check_bootstrap. So far, this commit has > regressed CI configurations: > - tcwg_gnu/gnu-master-aarch64-check_bootstrap > > Culprit: > > commit 1dd3f21095858fbfd3e28a149578d5fb67e75f95 > Author: Richard Biener > Date: Tue Jul 13 13:59:15 2021 +0200 > >Support reduction def re-use for epilogue with different vector size > >The following adds support for re-using the vector reduction def >from the main loop in vectorized epilogue loops on architectures >which use different vector sizes for the epilogue. That's only >x86 as far as I am aware. > >2021-07-13 Richard Biener > >* tree-vect-loop.c (vect_find_reusable_accumulator): Handle >vector types where the old vector type has a multiple of >the new vector type elements. >(vect_create_partial_epilog): New function, split out from... >(vect_create_epilog_for_reduction): ... here. >(vect_transform_cycle_phi): Reduce the re-used accumulator >to the new vector type. > >* gcc.target/i386/vect-reduc-1.c: New testcase. > > > Results regressed to (for first_bad == > 1dd3f21095858fbfd3e28a149578d5fb67e75f95) > # reset_artifacts: > -10 > # build_abe binutils: > -2 > # build_abe bootstrap: > -1 > # build_abe dejagnu: > 0 > # build_abe check_bootstrap -- --set runtestflags=g++.dg/dg.exp --set > runtestflags=gcc.target/aarch64/aarch64.exp: > 1 > # Getting actual results from build directory > /home/tcwg-buildslave/workspace/tcwg_gnu_3/artifacts/build-1dd3f21095858fbfd3e28a149578d5fb67e75f95/sumfiles > # > /home/tcwg-buildslave/workspace/tcwg_gnu_3/artifacts/build-1dd3f21095858fbfd3e28a149578d5fb67e75f95/sumfiles/libstdc++.sum > # > /home/tcwg-buildslave/workspace/tcwg_gnu_3/artifacts/build-1dd3f21095858fbfd3e28a149578d5fb67e75f95/sumfiles/gfortran.sum > # > /home/tcwg-buildslave/workspace/tcwg_gnu_3/artifacts/build-1dd3f21095858fbfd3e28a149578d5fb67e75f95/sumfiles/libitm.sum > # > /home/tcwg-buildslave/workspace/tcwg_gnu_3/artifacts/build-1dd3f21095858fbfd3e28a149578d5fb67e75f95/sumfiles/libgomp.sum > # > /home/tcwg-buildslave/workspace/tcwg_gnu_3/artifacts/build-1dd3f21095858fbfd3e28a149578d5fb67e75f95/sumfiles/libatomic.sum > # > /home/tcwg-buildslave/workspace/tcwg_gnu_3/artifacts/build-1dd3f21095858fbfd3e28a149578d5fb67e75f95/sumfiles/g++.sum > # > /home/tcwg-buildslave/workspace/tcwg_gnu_3/artifacts/build-1dd3f21095858fbfd3e28a149578d5fb67e75f95/sumfiles/gcc.sum > # Manifest: > gcc-compare-results/contrib/testsuite-management/flaky/gnu-master-aarch64-check_bootstrap.xfail > # Getting actual results from build directory base-artifacts/sumfiles > # base-artifacts/sumfiles/libstdc++.sum > # base-artifacts/sumfiles/gfortran.sum > # base-artifacts/sumfiles/libitm.sum > # base-artifacts/sumfiles/libgomp.sum > # base-artifacts/sumfiles/libatomic.sum > # base-artifacts/sumfiles/g++.sum > # base-artifacts/sumfiles/gcc.sum > # > # > # Unexpected results in this build (new failures) > # === gcc tests === > # > # Running gcc.target/aarch64/aarch64.exp ... > # FAIL: gcc.target/aarch64/vect-fmaxv-fminv-compile.c scan-assembler fminnmv > # FAIL: gcc.target/aarch64/vect-fmaxv-fminv-compile.c scan-assembler fmaxnmv > # > # === Results Summary === > > from (for last_good == a7098d6ef4e4e799dab8ef925c62b199d707694b) > # reset_artifacts: > -10 > # build_abe binutils: > -2 > # build_abe bootstrap: > -1 > # build_abe dejagnu: > 0 > # build_abe check_bootstrap -- --set runtestflags=g++.dg/dg.exp --set > runtestflags=gcc.target/aarch64/aarch64.exp: > 1 > > Artifacts of last_good build: > https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master-aarch64-check_bootstrap/80/artifact/artifacts/build-a7098d6ef4e4e799dab8ef925c62b199d707694b/ > Artifacts of first_bad build: > https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master-aarch64-check_bootstrap/80/artifact/artifacts/build-1dd3f21095858fbfd3e28a149578d5fb67e75f95/ > Build top page/logs: > https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master-aarch64-check_bootstrap/80/ > > Configuration details: > > > Reproduce builds: > > mkdir investigate-gcc-1dd3f21095858fbfd3e28a149578d5fb67e75f95 > cd investigate-gcc-1dd3f21095858fbfd3e28a149578d5fb67e75f95 > > 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_gcc-bisect-gnu-master-aarch64-check_bootstrap/80/artifact/artifacts/manifests/build-baseline.sh > --fail > curl -o artifacts/manifests/build-parameters.sh > https://ci.linaro.org/job/tcwg_gcc-bisect-gnu-master
Re: [CI-NOTIFY]: TCWG Bisect tcwg_bmk_tk1/llvm-release-arm-spec2k6-Os - Build # 19 - Successful!
Hi David, Linaro’s benchmarking CI is churning through a backlog of old commits, and it appears that your patch increases code-size of a single function by 13% — from 5890 bytes to 6642 bytes — that’s on Thumb2 at -Os. Not a big deal, but may be it is exposing a case worth investigating. The function is BZ2_compressBlock() from SPEC CPU2006’s 401.bzip2. Let us know if you are interested in investigating it, and we’ll provide details to reproduce. Regards, -- Maxim Kuvyrkov https://www.linaro.org > On 19 Jul 2021, at 00:39, ci_not...@linaro.org wrote: > > Successfully identified regression in *llvm* in CI configuration > tcwg_bmk_llvm_tk1/llvm-release-arm-spec2k6-Os. So far, this commit has > regressed CI configurations: > - tcwg_bmk_llvm_tk1/llvm-release-arm-spec2k6-Os > > Culprit: > > commit ab97c9bdb747c873cd35a18229e2694156a7607d > Author: David Green > Date: Sat Dec 12 14:21:40 2020 + > >[LV] Fix scalar cost for tail predicated loops > >When it comes to the scalar cost of any predicated block, the loop >vectorizer by default regards this predication as a sign that it is >looking at an if-conversion and divides the scalar cost of the block by >2, assuming it would only be executed half the time. This however makes >no sense if the predication has been introduced to tail predicate the >loop. > >Original patch by Anna Welker > >Differential Revision: https://reviews.llvm.org/D86452 > > > Results regressed to (for first_bad == > ab97c9bdb747c873cd35a18229e2694156a7607d) > # reset_artifacts: > -10 > # build_abe binutils: > -9 > # build_abe stage1 -- --set gcc_override_configure=--with-mode=thumb --set > gcc_override_configure=--disable-libsanitizer: > -8 > # build_abe linux: > -7 > # build_abe glibc: > -6 > # build_abe stage2 -- --set gcc_override_configure=--with-mode=thumb --set > gcc_override_configure=--disable-libsanitizer: > -5 > # build_llvm true: > -3 > # true: > 0 > # benchmark -Os_mthumb -- > artifacts/build-ab97c9bdb747c873cd35a18229e2694156a7607d/results_id: > 1 > # 401.bzip2,bzip2_base.default regressed by > 103 > # 401.bzip2,[.] BZ2_compressBlock regressed by > 113 > # 473.astar,astar_base.default regressed by > 103 > > from (for last_good == d716eab197abec0b9aab4a76cd1a52b248b8c3b1) > # reset_artifacts: > -10 > # build_abe binutils: > -9 > # build_abe stage1 -- --set gcc_override_configure=--with-mode=thumb --set > gcc_override_configure=--disable-libsanitizer: > -8 > # build_abe linux: > -7 > # build_abe glibc: > -6 > # build_abe stage2 -- --set gcc_override_configure=--with-mode=thumb --set > gcc_override_configure=--disable-libsanitizer: > -5 > # build_llvm true: > -3 > # true: > 0 > # benchmark -Os_mthumb -- > artifacts/build-d716eab197abec0b9aab4a76cd1a52b248b8c3b1/results_id: > 1 > > Artifacts of last_good build: > https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-Os/19/artifact/artifacts/build-d716eab197abec0b9aab4a76cd1a52b248b8c3b1/ > Results ID of last_good: > tk1_32/tcwg_bmk_llvm_tk1/bisect-llvm-release-arm-spec2k6-Os/1878 > Artifacts of first_bad build: > https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-Os/19/artifact/artifacts/build-ab97c9bdb747c873cd35a18229e2694156a7607d/ > Results ID of first_bad: > tk1_32/tcwg_bmk_llvm_tk1/bisect-llvm-release-arm-spec2k6-Os/1876 > Build top page/logs: > https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-Os/19/ > > Configuration details: > > > Reproduce builds: > > mkdir investigate-llvm-ab97c9bdb747c873cd35a18229e2694156a7607d > cd investigate-llvm-ab97c9bdb747c873cd35a18229e2694156a7607d > > 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_tk1-llvm-release-arm-spec2k6-Os/19/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_tk1-llvm-release-arm-spec2k6-Os/19/artifact/artifacts/manifests/build-parameters.sh > --fail > curl -o artifacts/test.sh > https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-Os/19/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) > rsync -a --del --delete-excluded --exclude bisect/ --exclude artifacts/ > --exclude llvm/ ./ ./bisect/baseline/ > > cd llvm > > # Reproduce first_bad build > git checkout --detach ab97c9bdb747c873cd35a18229e2694156a7607d > ../artifacts/test.sh > > # Reproduce
[CI-NOTIFY]: TCWG Bisect tcwg_bmk_tx1/llvm-release-aarch64-spec2k6-O3 - Build # 6 - Successful!
Successfully identified regression in *llvm* in CI configuration tcwg_bmk_llvm_tx1/llvm-release-aarch64-spec2k6-O3. So far, this commit has regressed CI configurations: - tcwg_bmk_llvm_tx1/llvm-release-aarch64-spec2k6-O3 Culprit: commit 1fb610429308a7c29c5065f5cc35dcc3fd69c8b1 Author: Roman Lebedev Date: Mon Oct 12 22:19:17 2020 +0300 Reland "[SCEV] Model ptrtoint(SCEVUnknown) cast not as unknown, but as zext/trunc/self of SCEVUnknown" This relands commit 1c021c64caef83cccb719c9bf0a2554faa6563af which was reverted in commit 17cec6a11a12f815052d56a17ef738cf246a2d9a because an assertion was being triggered, since `BuildConstantFromSCEV()` wasn't updated to handle the case where the constant we want to truncate is actually a pointer. I was unsuccessful in coming up with a test case where we'd end there with constant zext/sext of a pointer, so i didn't handle those cases there until there is a test case. Original commit message: While we indeed can't treat them as no-ops, i believe we can/should do better than just modelling them as `unknown`. `inttoptr` story is complicated, but for `ptrtoint`, it seems straight-forward to model it just as a zext-or-trunc of unknown. This may be important now that we track towards making inttoptr/ptrtoint casts not no-op, and towards preventing folding them into loads/etc (see D88979/D88789/D88788) Reviewed By: mkazantsev Differential Revision: https://reviews.llvm.org/D88806 Results regressed to (for first_bad == 1fb610429308a7c29c5065f5cc35dcc3fd69c8b1) # 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 -O3 -- artifacts/build-1fb610429308a7c29c5065f5cc35dcc3fd69c8b1/results_id: 1 # 400.perlbench,perlbench_base.default regressed by 104 from (for last_good == 73818f450e3a90fc89eca143ee30777ed7e660e9) # 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 -O3 -- artifacts/build-73818f450e3a90fc89eca143ee30777ed7e660e9/results_id: 1 Artifacts of last_good build: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-release-aarch64-spec2k6-O3/6/artifact/artifacts/build-73818f450e3a90fc89eca143ee30777ed7e660e9/ Results ID of last_good: tx1_64/tcwg_bmk_llvm_tx1/bisect-llvm-release-aarch64-spec2k6-O3/1930 Artifacts of first_bad build: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-release-aarch64-spec2k6-O3/6/artifact/artifacts/build-1fb610429308a7c29c5065f5cc35dcc3fd69c8b1/ Results ID of first_bad: tx1_64/tcwg_bmk_llvm_tx1/bisect-llvm-release-aarch64-spec2k6-O3/1947 Build top page/logs: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-release-aarch64-spec2k6-O3/6/ Configuration details: Reproduce builds: mkdir investigate-llvm-1fb610429308a7c29c5065f5cc35dcc3fd69c8b1 cd investigate-llvm-1fb610429308a7c29c5065f5cc35dcc3fd69c8b1 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_tx1-llvm-release-aarch64-spec2k6-O3/6/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-release-aarch64-spec2k6-O3/6/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-release-aarch64-spec2k6-O3/6/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) rsync -a --del --delete-excluded --exclude bisect/ --exclude artifacts/ --exclude llvm/ ./ ./bisect/baseline/ cd llvm # Reproduce first_bad build git checkout --detach 1fb610429308a7c29c5065f5cc35dcc3fd69c8b1 ../artifacts/test.sh # Reproduce last_good build git checkout --detach 73818f450e3a90fc89eca143ee30777ed7e660e9 ../artifacts/test.sh cd .. History of pending regressions and results: https://git.linaro.org/toolchain/ci/base-artifacts.git/log/?h=linaro-local/ci/tcwg_bmk_llvm_tx1/llvm-release-aarch64-spec2k6-O3 Artifacts: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-release-aarch64-spec2k6-O3/6/artifact/artifacts/ Build log: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-
