Hello Thaigo, > -----Original Message----- > From: Thiago Jung Bauermann <thiago.bauerm...@linaro.org> > Sent: Saturday, December 2, 2023 12:15 AM > To: Tamar Christina <tamar.christ...@arm.com> > Cc: linaro-toolchain@lists.linaro.org; gcc-regress...@gcc.gnu.org; tcwg- > validat...@linaro.org > Subject: Re: [Linaro-TCWG-CI] gcc-14-5673-g33c2b70dbab: FAIL: 1 regressions: 8 > progressions on aarch64 > > > Hello Tamar, > > It looks like this failure happens because qemu-aarch64 segfaults when > trying to run the testcase binary: > > Running on qemu: timeout -k 30s 330s setarch x86_64 -R qemu-aarch64 -cpu any > -R 0 -L /home/tcwg- > buildslave/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux- > gnu/aarch64-linux-gnu/libc ./mask_struct_load_3_run.exe > spawn [open ...] > timeout: the monitored command dumped core > FAIL: gcc.target/aarch64/sve/mask_struct_load_3_run.c execution test > > Which would be a QEMU bug. I'm working on reproducing it and will report > there if appropriate. > > However, our CI also found some size and performance regressions with > this commit, as detailed in https://linaro.atlassian.net/browse/GNU-1040: > > - tcwg_bmk-code_size-cpu2017fast > - gnu-aarch64-master-O2: grew in size by 3% - 508.namd_r > - gnu-aarch64-master-O2_LTO: grew in size by 2% - 508.namd_r > > - tcwg_bmk-code_size-spec2k6 > - gnu-aarch64-master-O2: grew in size by 2% - 447.dealII > - gnu-aarch64-master-Os: grew in size by 2% - 456.hmmer >
Size gains are expected. The cost model turns on throughput based optimizations. Since will grow because among other things it unrolls. > - tcwg_bmk-code_speed-cpu2017rate > - gnu-aarch64-master-O2: slowed down by 5% - 519.lbm_r > - gnu-aarch64-master-O3: slowed down by 5% - 519.lbm_r > As the commit message says, there are outstanding costing issues that will be resolved at stage 4 when the remaining infrastructure are in place. > - tcwg_bmk-fujitsu_speed-cpu2017speed > - gnu-aarch64-master-O2: slowed down by 19% - 644.nab_s:[.] > exp@@GLIBC_2.29 This is suspect, it says the slowdown is in exp in glibc, that would be unrelated to my patch. Tamar > > The link above has the full results. > > ci_not...@linaro.org writes: > > > 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 master-aarch64 after: > > > > | commit gcc-14-5673-g33c2b70dbab > > | Author: Tamar Christina <tamar.christ...@arm.com> > > | Date: Tue Nov 21 13:20:39 2023 +0000 > > | > > | AArch64: Add new generic-armv8-a CPU and make it the default. > > | > > | This patch adds a new generic scheduling model "generic-armv8-a" and > makes it > > | the default for all Armv8 architectures. > > | > > | -mcpu=generic and -mtune=generic is kept around for those that > > really want > the > > | previous cost model. > > | ... 34 lines of the commit log omitted. > > > > FAIL: 1 regressions: 8 progressions > > > > regressions.sum: > > === gcc tests === > > > > Running gcc:gcc.target/aarch64/sve/aarch64-sve.exp ... > > FAIL: gcc.target/aarch64/sve/mask_struct_load_3_run.c execution test > > > > === Results Summary === > > > > progressions.sum: > > === gcc tests === > > > > Running gcc:gcc.dg/vect/vect.exp ... > > FAIL: gcc.dg/vect/vect-reduc-pattern-1b-big-array.c -flto -ffat-lto-objects > > (test > for excess errors) > > UNRESOLVED: gcc.dg/vect/vect-reduc-pattern-1b-big-array.c compilation failed > to produce executable > > UNRESOLVED: gcc.dg/vect/vect-reduc-pattern-1b-big-array.c -flto -ffat-lto- > objects compilation failed to produce executable > > FAIL: gcc.dg/vect/vect-reduc-pattern-1b-big-array.c (test for excess errors) > > UNRESOLVED: gcc.dg/vect/vect-reduc-pattern-1b.c compilation failed to > produce executable > > UNRESOLVED: gcc.dg/vect/vect-reduc-pattern-1b.c -flto -ffat-lto-objects > compilation failed to produce executable > > FAIL: gcc.dg/vect/vect-reduc-pattern-1b.c (test for excess errors) > > ... and 3 more entries > > > > You can find the failure logs in *.log.1.xz files in > > - https://ci.linaro.org/job/tcwg_gnu_cross_check_gcc--master-aarch64- > build/1102/artifact/artifacts/00-sumfiles/ . > > The full lists of regressions and progressions are in > > - https://ci.linaro.org/job/tcwg_gnu_cross_check_gcc--master-aarch64- > build/1102/artifact/artifacts/notify/ . > > The list of [ignored] baseline and flaky failures are in > > - https://ci.linaro.org/job/tcwg_gnu_cross_check_gcc--master-aarch64- > build/1102/artifact/artifacts/sumfiles/xfails.xfail . > > > > The configuration of this build is: > > CI config tcwg_gnu_cross_check_gcc master-aarch64 > > > > -----------------8<--------------------------8<--------------------------8<------------------- > ------- > > The information below can be used to reproduce a debug environment: > > > > Current build : > > https://ci.linaro.org/job/tcwg_gnu_cross_check_gcc--master- > aarch64-build/1102/artifact/artifacts > > Reference build : > > https://ci.linaro.org/job/tcwg_gnu_cross_check_gcc--master- > aarch64-build/1101/artifact/artifacts > > > > Reproduce last good and first bad builds: https://git- > us.linaro.org/toolchain/ci/interesting- > commits.git/plain/gcc/sha1/33c2b70dbabc02788caabcbc66b7baeafeb95bcf/tcw > g_gnu_cross_check_gcc/master-aarch64/reproduction_instructions.txt > > > > Full commit : https://github.com/gcc- > mirror/gcc/commit/33c2b70dbabc02788caabcbc66b7baeafeb95bcf > > > > Latest bug report status : https://linaro.atlassian.net/browse/GNU-1040 > > > > List of configurations that regressed due to this commit : > > * tcwg_gnu_cross_check_gcc > > ** master-aarch64 > > *** FAIL: 1 regressions: 8 progressions > > *** https://git-us.linaro.org/toolchain/ci/interesting- > commits.git/plain/gcc/sha1/33c2b70dbabc02788caabcbc66b7baeafeb95bcf/tcw > g_gnu_cross_check_gcc/master-aarch64/details.txt > > *** https://ci.linaro.org/job/tcwg_gnu_cross_check_gcc--master-aarch64- > build/1102/ > > > -- > Thiago IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. 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