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Re: [TCWG CI] 456.hmmer slowed down by 6% after llvm: Allow rematerialization of virtual reg uses

by Maxim Kuvyrkov

Thanks, Stanislav, FWIW, it will be, probably, easier for you to just rebuild the compiler, it is an x86_64-linux-gnu -> arm-linux-gnueabihf cross. This link has the build log [1]. cmake -G Ninja ../llvm/llvm '-DLLVM_ENABLE_PROJECTS=clang;lld' -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=True -DCMAKE_INSTALL_PREFIX=../llvm-install -DLLVM_TARGETS_TO_BUILD=ARM Then compile the pre-processed source with plain -O2 or -O3 optimisation settings. [1] https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-master-… Regards, -- Maxim Kuvyrkov https://www.linaro.org > On 24 Sep 2021, at 20:30, Mekhanoshin, Stanislav <Stanislav.Mekhanoshin(a)amd.com> wrote: > > [AMD Official Use Only] > > I have reverted the whole change. There was yet another perf regression report. > > Stas > > From: Mekhanoshin, Stanislav > Sent: Thursday, September 23, 2021 11:48 > To: Maxim Kuvyrkov <maxim.kuvyrkov(a)linaro.org> > Cc: linaro-toolchain <linaro-toolchain(a)lists.linaro.org> > Subject: RE: [TCWG CI] 456.hmmer slowed down by 6% after llvm: Allow rematerialization of virtual reg uses > > Thanks. I see the reload. There shall not be extra pressure since that is the whole idea, make pressure less. However, I see more spills in that specific file, fast_algorithms.s if I get it right. > Can I get the IR for it? Something to feed llc. > > Stas > > From: Maxim Kuvyrkov <maxim.kuvyrkov(a)linaro.org> > Sent: Thursday, September 23, 2021 2:31 > To: Mekhanoshin, Stanislav <Stanislav.Mekhanoshin(a)amd.com> > Cc: linaro-toolchain <linaro-toolchain(a)lists.linaro.org> > Subject: Re: [TCWG CI] 456.hmmer slowed down by 6% after llvm: Allow rematerialization of virtual reg uses > > [CAUTION: External Email] > > Thanks, Stanislav. > > I’ve looked into profile dumps, and 456.hmmer’s hot loop get several additional reloads. E.g., "ldr r1, [sp, #84]” generates 203 additional samples, which translates into 20 seconds of time just for that one instruction. > > See the attached profile dumps and the the screenshot with the hot loop highlighted. > > Maybe your patch increases register pressure too much? > > Regards, > > -- > Maxim Kuvyrkov > https://www.linaro.org > > > On 22 Sep 2021, at 22:35, Mekhanoshin, Stanislav <Stanislav.Mekhanoshin(a)amd.com> wrote: > > > > [AMD Official Use Only] > > > > There are actually couple things worth to try if that is easy: > > > > https://reviews.llvm.org/D109077 > > https://reviews.llvm.org/differential/diff/374324/ > > > > Both may slightly change spill weights and then spilling pattern. > > > > Stas > > > > -----Original Message----- > > From: Mekhanoshin, Stanislav > > Sent: Wednesday, September 22, 2021 12:09 > > To: Maxim Kuvyrkov <maxim.kuvyrkov(a)linaro.org> > > Cc: linaro-toolchain <linaro-toolchain(a)lists.linaro.org> > > Subject: RE: [TCWG CI] 456.hmmer slowed down by 6% after llvm: Allow rematerialization of virtual reg uses > > > > I assume some of the newly rematerialized instructions caused perf drops. Probably some very specific ones. I would appreciate if you could point them to me. > > In addition I believe I would need to have a linked or optimized bitcode to feed into llc. > > > > Stas > > > > -----Original Message----- > > From: Maxim Kuvyrkov <maxim.kuvyrkov(a)linaro.org> > > Sent: Wednesday, September 22, 2021 12:06 > > To: Mekhanoshin, Stanislav <Stanislav.Mekhanoshin(a)amd.com> > > Cc: linaro-toolchain <linaro-toolchain(a)lists.linaro.org> > > Subject: Re: [TCWG CI] 456.hmmer slowed down by 6% after llvm: Allow rematerialization of virtual reg uses > > > > [CAUTION: External Email] > > > > Hi Stanislav, > > > > That's fair; I or someone from Linaro will try to analyze this and follow up here. > > > > On a more general note, what info would you like to see in these benchmarking regression reports? > > > > Thanks, > > > > -- > > Maxim Kuvyrkov > > https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.linar… > > > > > >> On Sep 22, 2021, at 9:40 PM, Mekhanoshin, Stanislav <Stanislav.Mekhanoshin(a)amd.com> wrote: > >> > >> [AMD Official Use Only] > >> > >> Hm... I'd really like to help, but I do not think I can do anything with megabytes of code in an asm which I do not understand and tons of differences in 48 asm files. > >> What I can see there is overall less spilling code which was the intent in the first place: hmmer has 4 less spill opcodes overall and sphinx has 27 less of them. > >> I doubt I could say much more without someone pointing to the actual root cause. > >> > >> Stas > >> > >> -----Original Message----- > >> From: Maxim Kuvyrkov <maxim.kuvyrkov(a)linaro.org> > >> Sent: Wednesday, September 22, 2021 5:16 > >> To: Mekhanoshin, Stanislav <Stanislav.Mekhanoshin(a)amd.com> > >> Cc: linaro-toolchain <linaro-toolchain(a)lists.linaro.org> > >> Subject: Re: [TCWG CI] 456.hmmer slowed down by 6% after llvm: Allow rematerialization of virtual reg uses > >> > >> [CAUTION: External Email] > >> > >> Hi Stanislav, > >> > >> Attached is a tarball with -save-temps output (pre-processed source and generated assembly) for first-bad run (your commit) and last-good run (immediate parent of your commit). > >> > >> -- > >> Maxim Kuvyrkov > >> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.linar… > >> > >>> On 20 Sep 2021, at 23:15, Mekhanoshin, Stanislav <Stanislav.Mekhanoshin(a)amd.com> wrote: > >>> > >>> [AMD Official Use Only] > >>> > >>> Thanks for letting me know. Some regressions are inevitable, however do you happen to have any analysis and dumps? I myself do not understand ARM ISA well... > >>> > >>> Stas > >>> > >>> -----Original Message----- > >>> From: Maxim Kuvyrkov <maxim.kuvyrkov(a)linaro.org> > >>> Sent: Wednesday, September 15, 2021 5:52 > >>> To: Mekhanoshin, Stanislav <Stanislav.Mekhanoshin(a)amd.com> > >>> Cc: linaro-toolchain <linaro-toolchain(a)lists.linaro.org> > >>> Subject: Re: [TCWG CI] 456.hmmer slowed down by 6% after llvm: Allow rematerialization of virtual reg uses > >>> > >>> [CAUTION: External Email] > >>> > >>> Hi Stanislav, > >>> > >>> FYI, your patch seems to be slowing down two of SPEC CPU2006 tests on 32-bit ARM at -O2 and -O3 optimization levels. > >>> > >>> -- > >>> Maxim Kuvyrkov > >>> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.linar… > >>> > >> > >> > > > <image001.png>

4 years, 1 month

[TCWG CI] Regression caused by binutils: Automatic date update in version.in

by ci_notify＠linaro.org

[TCWG CI] Regression caused by binutils: Automatic date update in version.in: commit fcc561a54de2beb19cb325094fbd3ec76f96e520 Author: GDB Administrator <gdbadmin(a)sourceware.org> Automatic date update in version.in Results regressed to # reset_artifacts: -10 # build_abe binutils: -9 # build_abe stage1 -- --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -8 # build_abe newlib: -6 # build_abe stage2 -- --patch linaro-local/vect-metric-branch --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -5 # true: 0 # benchmark -- -O3_LTO_VECT_mthumb artifacts/build-fcc561a54de2beb19cb325094fbd3ec76f96e520/results_id: 1 from # reset_artifacts: -10 # build_abe binutils: -9 # build_abe stage1 -- --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -8 # build_abe newlib: -6 # build_abe stage2 -- --patch linaro-local/vect-metric-branch --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -5 # true: 0 # benchmark -- -O3_LTO_VECT_mthumb artifacts/build-baseline/results_id: 1 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_gnu_eabi_stm32/gnu_eabi-release-arm_eabi-coremark-O3_LTO_VECT First_bad build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Last_good build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Baseline build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Even more details: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Reproduce builds: <cut> mkdir investigate-binutils-fcc561a54de2beb19cb325094fbd3ec76f96e520 cd investigate-binutils-fcc561a54de2beb19cb325094fbd3ec76f96e520 # 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_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… --fail curl -o artifacts/manifests/build-parameters.sh https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… --fail curl -o artifacts/test.sh https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… --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 /binutils/ ./ ./bisect/baseline/ cd binutils # Reproduce first_bad build git checkout --detach fcc561a54de2beb19cb325094fbd3ec76f96e520 ../artifacts/test.sh # Reproduce last_good build git checkout --detach 27439f0edab99c6870cf7fe042074e47632f3fbd ../artifacts/test.sh cd .. </cut> Full commit (up to 1000 lines): <cut> commit fcc561a54de2beb19cb325094fbd3ec76f96e520 Author: GDB Administrator <gdbadmin(a)sourceware.org> Date: Wed Sep 22 00:00:31 2021 +0000 Automatic date update in version.in --- bfd/version.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/bfd/version.h b/bfd/version.h index 338c1288a22..c45d963473c 100644 --- a/bfd/version.h +++ b/bfd/version.h @@ -16,7 +16,7 @@ In releases, the date is not included in either version strings or sonames. */ -#define BFD_VERSION_DATE 20210921 +#define BFD_VERSION_DATE 20210922 #define BFD_VERSION @bfd_version@ #define BFD_VERSION_STRING @bfd_version_package@ @bfd_version_string@ #define REPORT_BUGS_TO @report_bugs_to@ </cut>

4 years, 1 month

[TCWG CI] Regression caused by gcc: Daily bump.

by ci_notify＠linaro.org

[TCWG CI] Regression caused by gcc: Daily bump.: commit d4b84aefe696a5783a58a30b3fb8dc4617cd147a Author: GCC Administrator <gccadmin(a)gcc.gnu.org> Daily bump. Results regressed to # reset_artifacts: -10 # build_abe binutils: -9 # build_abe stage1 -- --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -8 # build_abe newlib: -6 # build_abe stage2 -- --patch linaro-local/vect-metric-branch --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -5 # true: 0 # benchmark -- -O3_LTO_VECT_mthumb artifacts/build-d4b84aefe696a5783a58a30b3fb8dc4617cd147a/results_id: 1 from # reset_artifacts: -10 # build_abe binutils: -9 # build_abe stage1 -- --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -8 # build_abe newlib: -6 # build_abe stage2 -- --patch linaro-local/vect-metric-branch --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -5 # true: 0 # benchmark -- -O3_LTO_VECT_mthumb artifacts/build-baseline/results_id: 1 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_gnu_eabi_stm32/gnu_eabi-release-arm_eabi-coremark-O3_LTO_VECT First_bad build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Last_good build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Baseline build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Even more details: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Reproduce builds: <cut> mkdir investigate-gcc-d4b84aefe696a5783a58a30b3fb8dc4617cd147a cd investigate-gcc-d4b84aefe696a5783a58a30b3fb8dc4617cd147a # 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_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… --fail curl -o artifacts/manifests/build-parameters.sh https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… --fail curl -o artifacts/test.sh https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… --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 d4b84aefe696a5783a58a30b3fb8dc4617cd147a ../artifacts/test.sh # Reproduce last_good build git checkout --detach b1dc26d3543d79805751c26ba5b142eeeb1f55b8 ../artifacts/test.sh cd .. </cut> Full commit (up to 1000 lines): <cut> commit d4b84aefe696a5783a58a30b3fb8dc4617cd147a Author: GCC Administrator <gccadmin(a)gcc.gnu.org> Date: Tue Sep 21 00:17:57 2021 +0000 Daily bump. --- gcc/DATESTAMP | 2 +- gcc/fortran/ChangeLog | 5 +++++ gcc/testsuite/ChangeLog | 4 ++++ 3 files changed, 10 insertions(+), 1 deletion(-) diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP index c1155ef2341..ed865cb70ab 100644 --- a/gcc/DATESTAMP +++ b/gcc/DATESTAMP @@ -1 +1 @@ -20210920 +20210921 diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog index f6863fb900a..3d53ed99f33 100644 --- a/gcc/fortran/ChangeLog +++ b/gcc/fortran/ChangeLog @@ -1,3 +1,8 @@ +2021-09-20 Tobias Burnus <tobias(a)codesourcery.com> + + * trans-openmp.c (gfc_split_omp_clauses): Don't put 'order(concurrent)' + on 'distribute' for combined directives, matching OpenMP 5.0 + 2021-09-19 Harald Anlauf <anlauf(a)gmx.de> Backported from master: diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 2ea65ee2d7f..7f8d142942a 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2021-09-20 Tobias Burnus <tobias(a)codesourcery.com> + + * gfortran.dg/gomp/distribute-order-concurrent.f90: New test. + 2021-09-19 Harald Anlauf <anlauf(a)gmx.de> Backported from master: </cut>

4 years, 1 month

[TCWG CI] Regression caused by newlib: Cygwin: allow open_setup to fail

by ci_notify＠linaro.org

[TCWG CI] Regression caused by newlib: Cygwin: allow open_setup to fail: commit e5fcb021cc9dcb1f19d45030457be86b4a226e65 Author: Ken Brown <kbrown(a)cornell.edu> Cygwin: allow open_setup to fail Results regressed to # reset_artifacts: -10 # build_abe binutils: -9 # build_abe stage1 -- --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -8 # build_abe newlib: -6 # build_abe stage2 -- --patch linaro-local/vect-metric-branch --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -5 # true: 0 # benchmark -- -O3_LTO_VECT_mthumb artifacts/build-e5fcb021cc9dcb1f19d45030457be86b4a226e65/results_id: 1 from # reset_artifacts: -10 # build_abe binutils: -9 # build_abe stage1 -- --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -8 # build_abe newlib: -6 # build_abe stage2 -- --patch linaro-local/vect-metric-branch --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -5 # true: 0 # benchmark -- -O3_LTO_VECT_mthumb artifacts/build-baseline/results_id: 1 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_gnu_eabi_stm32/gnu_eabi-release-arm_eabi-coremark-O3_LTO_VECT First_bad build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Last_good build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Baseline build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Even more details: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Reproduce builds: <cut> mkdir investigate-newlib-e5fcb021cc9dcb1f19d45030457be86b4a226e65 cd investigate-newlib-e5fcb021cc9dcb1f19d45030457be86b4a226e65 # 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_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… --fail curl -o artifacts/manifests/build-parameters.sh https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… --fail curl -o artifacts/test.sh https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… --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 /newlib/ ./ ./bisect/baseline/ cd newlib # Reproduce first_bad build git checkout --detach e5fcb021cc9dcb1f19d45030457be86b4a226e65 ../artifacts/test.sh # Reproduce last_good build git checkout --detach 9b0841aa789e74b6778744b89af76b60bd1a78bc ../artifacts/test.sh cd .. </cut> Full commit (up to 1000 lines): <cut> commit e5fcb021cc9dcb1f19d45030457be86b4a226e65 Author: Ken Brown <kbrown(a)cornell.edu> Date: Sat Sep 18 08:13:55 2021 -0400 Cygwin: allow open_setup to fail Convert fhandler_base::open_setup to a (virtual) method that returns a bool result. For the moment, it and its overrides always return true. --- winsup/cygwin/fhandler.cc | 3 ++- winsup/cygwin/fhandler.h | 10 +++++----- winsup/cygwin/fhandler_console.cc | 4 ++-- winsup/cygwin/fhandler_pipe.cc | 9 +++++++-- winsup/cygwin/fhandler_tty.cc | 8 ++++---- 5 files changed, 20 insertions(+), 14 deletions(-) diff --git a/winsup/cygwin/fhandler.cc b/winsup/cygwin/fhandler.cc index 9dfe70be38..1af469e0c9 100644 --- a/winsup/cygwin/fhandler.cc +++ b/winsup/cygwin/fhandler.cc @@ -789,9 +789,10 @@ fhandler_base::fd_reopen (int, mode_t) return NULL; } -void +bool fhandler_base::open_setup (int) { + return true; } /* states: diff --git a/winsup/cygwin/fhandler.h b/winsup/cygwin/fhandler.h index 61113e6981..3471e95b97 100644 --- a/winsup/cygwin/fhandler.h +++ b/winsup/cygwin/fhandler.h @@ -355,7 +355,7 @@ class fhandler_base int open_null (int flags); virtual int open (int, mode_t); virtual fhandler_base *fd_reopen (int, mode_t); - virtual void open_setup (int flags); + virtual bool open_setup (int flags); void set_unique_id (int64_t u) { unique_id = u; } void set_unique_id () { NtAllocateLocallyUniqueId ((PLUID) &unique_id); } @@ -1206,7 +1206,7 @@ public: select_record *select_except (select_stuff *); char *get_proc_fd_name (char *buf); int open (int flags, mode_t mode = 0); - void open_setup (int flags); + bool open_setup (int flags); void fixup_after_fork (HANDLE); int dup (fhandler_base *child, int); void set_close_on_exec (bool val); @@ -2132,7 +2132,7 @@ private: bool use_archetype () const {return true;} int open (int flags, mode_t mode); - void open_setup (int flags); + bool open_setup (int flags); int dup (fhandler_base *, int); void __reg3 read (void *ptr, size_t& len); @@ -2300,7 +2300,7 @@ class fhandler_pty_slave: public fhandler_pty_common HANDLE& get_handle_nat () { return io_handle_nat; } int open (int flags, mode_t mode = 0); - void open_setup (int flags); + bool open_setup (int flags); ssize_t __stdcall write (const void *ptr, size_t len); void __reg3 read (void *ptr, size_t& len); int init (HANDLE, DWORD, mode_t); @@ -2399,7 +2399,7 @@ public: void doecho (const void *str, DWORD len); int accept_input (); int open (int flags, mode_t mode = 0); - void open_setup (int flags); + bool open_setup (int flags); ssize_t __stdcall write (const void *ptr, size_t len); void __reg3 read (void *ptr, size_t& len); int close (); diff --git a/winsup/cygwin/fhandler_console.cc b/winsup/cygwin/fhandler_console.cc index e00f2cdbcc..ee862b17d1 100644 --- a/winsup/cygwin/fhandler_console.cc +++ b/winsup/cygwin/fhandler_console.cc @@ -1366,13 +1366,13 @@ fhandler_console::open (int flags, mode_t) return 1; } -void +bool fhandler_console::open_setup (int flags) { set_flags ((flags & ~O_TEXT) | O_BINARY); if (myself->set_ctty (this, flags) && !myself->cygstarted) init_console_handler (true); - fhandler_base::open_setup (flags); + return fhandler_base::open_setup (flags); } int diff --git a/winsup/cygwin/fhandler_pipe.cc b/winsup/cygwin/fhandler_pipe.cc index 73ace3ac53..590ecf6670 100644 --- a/winsup/cygwin/fhandler_pipe.cc +++ b/winsup/cygwin/fhandler_pipe.cc @@ -191,10 +191,11 @@ out: return 0; } -void +bool fhandler_pipe::open_setup (int flags) { - fhandler_base::open_setup (flags); + if (!fhandler_base::open_setup (flags)) + goto err; if (get_dev () == FH_PIPER && !read_mtx) { SECURITY_ATTRIBUTES *sa = sec_none_cloexec (flags); @@ -211,6 +212,10 @@ fhandler_pipe::open_setup (int flags) } if (get_dev () == FH_PIPEW && !query_hdl) set_pipe_non_blocking (is_nonblocking ()); + return true; + +err: + return false; } off_t diff --git a/winsup/cygwin/fhandler_tty.cc b/winsup/cygwin/fhandler_tty.cc index 1ea9a47ac5..05fe5348af 100644 --- a/winsup/cygwin/fhandler_tty.cc +++ b/winsup/cygwin/fhandler_tty.cc @@ -964,13 +964,13 @@ err_no_msg: return 0; } -void +bool fhandler_pty_slave::open_setup (int flags) { set_flags ((flags & ~O_TEXT) | O_BINARY); myself->set_ctty (this, flags); report_tty_counts (this, "opened", ""); - fhandler_base::open_setup (flags); + return fhandler_base::open_setup (flags); } void @@ -1947,14 +1947,14 @@ fhandler_pty_master::open (int flags, mode_t) return 1; } -void +bool fhandler_pty_master::open_setup (int flags) { set_flags ((flags & ~O_TEXT) | O_BINARY); char buf[sizeof ("opened pty master for ptyNNNNNNNNNNN")]; __small_sprintf (buf, "opened pty master for pty%d", get_minor ()); report_tty_counts (this, buf, ""); - fhandler_base::open_setup (flags); + return fhandler_base::open_setup (flags); } off_t </cut>

4 years, 1 month

gcc-linaro-6.3.1-2017.05-i686_aarch64-elf.tar.xz

by maytte sanchez

I’m trying to import these files into Ds-5. After unzipping files, it still will not show up in ds-5 search. Below is the error that I keep receiving: Sent from my iPhone

4 years, 1 month

[TCWG CI] Regression caused by binutils: Automatic date update in version.in

by ci_notify＠linaro.org

[TCWG CI] Regression caused by binutils: Automatic date update in version.in: commit 27439f0edab99c6870cf7fe042074e47632f3fbd Author: GDB Administrator <gdbadmin(a)sourceware.org> Automatic date update in version.in Results regressed to # reset_artifacts: -10 # build_abe binutils: -9 # build_abe stage1 -- --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -8 # build_abe newlib: -6 # build_abe stage2 -- --patch linaro-local/vect-metric-branch --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -5 # true: 0 # benchmark -- -O3_LTO_VECT_mthumb artifacts/build-27439f0edab99c6870cf7fe042074e47632f3fbd/results_id: 1 from # reset_artifacts: -10 # build_abe binutils: -9 # build_abe stage1 -- --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -8 # build_abe newlib: -6 # build_abe stage2 -- --patch linaro-local/vect-metric-branch --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -5 # true: 0 # benchmark -- -O3_LTO_VECT_mthumb artifacts/build-baseline/results_id: 1 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_gnu_eabi_stm32/gnu_eabi-release-arm_eabi-coremark-O3_LTO_VECT First_bad build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Last_good build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Baseline build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Even more details: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Reproduce builds: <cut> mkdir investigate-binutils-27439f0edab99c6870cf7fe042074e47632f3fbd cd investigate-binutils-27439f0edab99c6870cf7fe042074e47632f3fbd # 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_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… --fail curl -o artifacts/manifests/build-parameters.sh https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… --fail curl -o artifacts/test.sh https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… --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 /binutils/ ./ ./bisect/baseline/ cd binutils # Reproduce first_bad build git checkout --detach 27439f0edab99c6870cf7fe042074e47632f3fbd ../artifacts/test.sh # Reproduce last_good build git checkout --detach 6060c2f3373e18f76fa9e3e4d7cf2f3d5983da03 ../artifacts/test.sh cd .. </cut> Full commit (up to 1000 lines): <cut> commit 27439f0edab99c6870cf7fe042074e47632f3fbd Author: GDB Administrator <gdbadmin(a)sourceware.org> Date: Tue Sep 21 00:00:39 2021 +0000 Automatic date update in version.in --- bfd/version.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/bfd/version.h b/bfd/version.h index 72a41aba322..338c1288a22 100644 --- a/bfd/version.h +++ b/bfd/version.h @@ -16,7 +16,7 @@ In releases, the date is not included in either version strings or sonames. */ -#define BFD_VERSION_DATE 20210920 +#define BFD_VERSION_DATE 20210921 #define BFD_VERSION @bfd_version@ #define BFD_VERSION_STRING @bfd_version_package@ @bfd_version_string@ #define REPORT_BUGS_TO @report_bugs_to@ </cut>

4 years, 1 month

[TCWG CI] Regression caused by gcc: GCC11 - Fortran: combined directives - order(concurrent) not on distribute

by ci_notify＠linaro.org

[TCWG CI] Regression caused by gcc: GCC11 - Fortran: combined directives - order(concurrent) not on distribute: commit b1dc26d3543d79805751c26ba5b142eeeb1f55b8 Author: Tobias Burnus <tobias(a)codesourcery.com> GCC11 - Fortran: combined directives - order(concurrent) not on distribute Results regressed to # reset_artifacts: -10 # build_abe binutils: -9 # build_abe stage1 -- --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -8 # build_abe newlib: -6 # build_abe stage2 -- --patch linaro-local/vect-metric-branch --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -5 # true: 0 # benchmark -- -O3_LTO_VECT_mthumb artifacts/build-b1dc26d3543d79805751c26ba5b142eeeb1f55b8/results_id: 1 from # reset_artifacts: -10 # build_abe binutils: -9 # build_abe stage1 -- --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -8 # build_abe newlib: -6 # build_abe stage2 -- --patch linaro-local/vect-metric-branch --set gcc_override_configure=--disable-libsanitizer --set gcc_override_configure=--disable-multilib --set gcc_override_configure=--with-cpu=cortex-m4 --set gcc_override_configure=--with-mode=thumb --set gcc_override_configure=--with-float=hard: -5 # true: 0 # benchmark -- -O3_LTO_VECT_mthumb artifacts/build-baseline/results_id: 1 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_gnu_eabi_stm32/gnu_eabi-release-arm_eabi-coremark-O3_LTO_VECT First_bad build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Last_good build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Baseline build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Even more details: https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… Reproduce builds: <cut> mkdir investigate-gcc-b1dc26d3543d79805751c26ba5b142eeeb1f55b8 cd investigate-gcc-b1dc26d3543d79805751c26ba5b142eeeb1f55b8 # 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_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… --fail curl -o artifacts/manifests/build-parameters.sh https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… --fail curl -o artifacts/test.sh https://ci.linaro.org/job/tcwg_bmk_ci_gnu_eabi-bisect-tcwg_bmk_stm32-gnu_ea… --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 b1dc26d3543d79805751c26ba5b142eeeb1f55b8 ../artifacts/test.sh # Reproduce last_good build git checkout --detach 79c523d40de1b7ce1dd0f4865c0855ab2bf6744b ../artifacts/test.sh cd .. </cut> Full commit (up to 1000 lines): <cut> commit b1dc26d3543d79805751c26ba5b142eeeb1f55b8 Author: Tobias Burnus <tobias(a)codesourcery.com> Date: Mon Sep 20 17:24:56 2021 +0200 GCC11 - Fortran: combined directives - order(concurrent) not on distribute While OpenMP 5.1 and GCC 12 permits 'order(concurrent)' on distribute, OpenMP 5.0 and GCC 11 don't. This patch for GCC 11 ensures the clause also does not end up on 'distribute' when splitting combined directives. gcc/fortran/ChangeLog: * trans-openmp.c (gfc_split_omp_clauses): Don't put 'order(concurrent)' on 'distribute' for combined directives, matching OpenMP 5.0 gcc/testsuite/ChangeLog: * gfortran.dg/gomp/distribute-order-concurrent.f90: New test. --- gcc/fortran/trans-openmp.c | 2 -- .../gomp/distribute-order-concurrent.f90 | 25 ++++++++++++++++++++++ 2 files changed, 25 insertions(+), 2 deletions(-) diff --git a/gcc/fortran/trans-openmp.c b/gcc/fortran/trans-openmp.c index 7e931bf4bc7..973d916b4a2 100644 --- a/gcc/fortran/trans-openmp.c +++ b/gcc/fortran/trans-openmp.c @@ -5176,8 +5176,6 @@ gfc_split_omp_clauses (gfc_code *code, /* Duplicate collapse. */ clausesa[GFC_OMP_SPLIT_DISTRIBUTE].collapse = code->ext.omp_clauses->collapse; - clausesa[GFC_OMP_SPLIT_DISTRIBUTE].order_concurrent - = code->ext.omp_clauses->order_concurrent; } if (mask & GFC_OMP_MASK_PARALLEL) { diff --git a/gcc/testsuite/gfortran.dg/gomp/distribute-order-concurrent.f90 b/gcc/testsuite/gfortran.dg/gomp/distribute-order-concurrent.f90 new file mode 100644 index 00000000000..9597d913684 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/gomp/distribute-order-concurrent.f90 @@ -0,0 +1,25 @@ +! { dg-additional-options "-fdump-tree-original" } +! +! In OpenMP 5.0, 'order(concurrent)' does not apply to distribute +! Ensure that it is rejected in GCC 11. +! +! Note: OpenMP 5.1 allows it; the GCC 12 testcase for it is gfortran.dg/gomp/order-5.f90 + +subroutine f(a) +implicit none +integer :: i, thr +!save :: thr +integer :: a(:) + +!$omp distribute parallel do order(concurrent) private(thr) + do i = 1, 10 + thr = 5 + a(i) = thr + end do +!$omp end distribute parallel do +end + +! { dg-final { scan-tree-dump-not "omp distribute\[^\n\r]*order" "original" } } +! { dg-final { scan-tree-dump "#pragma omp distribute\[\n\r\]" "original" } } +! { dg-final { scan-tree-dump "#pragma omp parallel private\$thr\$" "original" } } +! { dg-final { scan-tree-dump "#pragma omp for nowait order\$concurrent\$" "original" } } </cut>

4 years, 1 month

[TCWG CI] 450.soplex grew in size by 2% after gcc: Avoid invalid loop transformations in jump threading registry.

by ci_notify＠linaro.org

After gcc commit 4a960d548b7d7d942f316c5295f6d849b74214f5 Author: Aldy Hernandez <aldyh(a)redhat.com> Avoid invalid loop transformations in jump threading registry. the following benchmarks grew in size by more than 1%: - 450.soplex grew in size by 2% from 207260 to 211436 bytes 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_gnu-bisect-tcwg_bmk_apm-gnu-master-aa… - Last_good save-temps: https://ci.linaro.org/job/tcwg_bmk_ci_gnu-bisect-tcwg_bmk_apm-gnu-master-aa… - Baseline save-temps: https://ci.linaro.org/job/tcwg_bmk_ci_gnu-bisect-tcwg_bmk_apm-gnu-master-aa… Configuration: - Benchmark: SPEC CPU2006 - Toolchain: GCC + Glibc + GNU Linker - Version: all components were built from their tip of trunk - Target: aarch64-linux-gnu - Compiler flags: -Os -flto - Hardware: APM Mustang 8x X-Gene1 This benchmarking CI is work-in-progress, and we welcome feedback and suggestions at linaro-toolchain(a)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_gnu_apm/gnu-master-aarch64-spec2k6-Os_LTO First_bad build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu-bisect-tcwg_bmk_apm-gnu-master-aa… Last_good build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu-bisect-tcwg_bmk_apm-gnu-master-aa… Baseline build: https://ci.linaro.org/job/tcwg_bmk_ci_gnu-bisect-tcwg_bmk_apm-gnu-master-aa… Even more details: https://ci.linaro.org/job/tcwg_bmk_ci_gnu-bisect-tcwg_bmk_apm-gnu-master-aa… Reproduce builds: <cut> mkdir investigate-gcc-4a960d548b7d7d942f316c5295f6d849b74214f5 cd investigate-gcc-4a960d548b7d7d942f316c5295f6d849b74214f5 # 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_gnu-bisect-tcwg_bmk_apm-gnu-master-aa… --fail curl -o artifacts/manifests/build-parameters.sh https://ci.linaro.org/job/tcwg_bmk_ci_gnu-bisect-tcwg_bmk_apm-gnu-master-aa… --fail curl -o artifacts/test.sh https://ci.linaro.org/job/tcwg_bmk_ci_gnu-bisect-tcwg_bmk_apm-gnu-master-aa… --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 4a960d548b7d7d942f316c5295f6d849b74214f5 ../artifacts/test.sh # Reproduce last_good build git checkout --detach 29c92857039d0a105281be61c10c9e851aaeea4a ../artifacts/test.sh cd .. </cut> Full commit (up to 1000 lines): <cut> commit 4a960d548b7d7d942f316c5295f6d849b74214f5 Author: Aldy Hernandez <aldyh(a)redhat.com> Date: Thu Sep 23 10:59:24 2021 +0200 Avoid invalid loop transformations in jump threading registry. My upcoming improvements to the forward jump threader make it thread more aggressively. In investigating some "regressions", I noticed that it has always allowed threading through empty latches and across loop boundaries. As we have discussed recently, this should be avoided until after loop optimizations have run their course. Note that this wasn't much of a problem before because DOM/VRP couldn't find these opportunities, but with a smarter solver, we trip over them more easily. Because the forward threader doesn't have an independent localized cost model like the new threader (profitable_path_p), it is difficult to catch these things at discovery. However, we can catch them at registration time, with the added benefit that all the threaders (forward and backward) can share the handcuffs. This patch is an adaptation of what we do in the backward threader, but it is not meant to catch everything we do there, as some of the restrictions there are due to limitations of the different block copiers (for example, the generic copier does not re-use existing threading paths). We could ideally remove the now redundant bits in profitable_path_p, but I would prefer not to for two reasons. First, the backward threader uses profitable_path_p as it discovers paths to avoid discovering paths in unprofitable directions. Second, I would like to merge all the forward cost restrictions into the profitability class in the backward threader, not the other way around. Alas, that reshuffling will have to wait for the next release. As usual, there are quite a few tests that needed adjustments. It seems we were quite happily threading improper scenarios. With most of them, as can be seen in pr77445-2.c, we're merely shifting the threading to after loop optimizations. Tested on x86-64 Linux. gcc/ChangeLog: * tree-ssa-threadupdate.c (jt_path_registry::cancel_invalid_paths): New. (jt_path_registry::register_jump_thread): Call cancel_invalid_paths. * tree-ssa-threadupdate.h (class jt_path_registry): Add cancel_invalid_paths. gcc/testsuite/ChangeLog: * gcc.dg/tree-ssa/20030714-2.c: Adjust. * gcc.dg/tree-ssa/pr66752-3.c: Adjust. * gcc.dg/tree-ssa/pr77445-2.c: Adjust. * gcc.dg/tree-ssa/ssa-dom-thread-18.c: Adjust. * gcc.dg/tree-ssa/ssa-dom-thread-7.c: Adjust. * gcc.dg/vect/bb-slp-16.c: Adjust. --- gcc/testsuite/gcc.dg/tree-ssa/20030714-2.c | 7 ++- gcc/testsuite/gcc.dg/tree-ssa/pr66752-3.c | 19 ++++--- gcc/testsuite/gcc.dg/tree-ssa/pr77445-2.c | 4 +- gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-thread-18.c | 4 +- gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-thread-7.c | 4 +- gcc/testsuite/gcc.dg/vect/bb-slp-16.c | 7 --- gcc/tree-ssa-threadupdate.c | 67 ++++++++++++++++++----- gcc/tree-ssa-threadupdate.h | 1 + 8 files changed, 78 insertions(+), 35 deletions(-) diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20030714-2.c b/gcc/testsuite/gcc.dg/tree-ssa/20030714-2.c index eb663f2ff5b..9585ff11307 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/20030714-2.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/20030714-2.c @@ -32,7 +32,8 @@ get_alias_set (t) } } -/* There should be exactly three IF conditionals if we thread jumps - properly. */ -/* { dg-final { scan-tree-dump-times "if " 3 "dom2"} } */ +/* There should be exactly 4 IF conditionals if we thread jumps + properly. There used to be 3, but one thread was crossing + loops. */ +/* { dg-final { scan-tree-dump-times "if " 4 "dom2"} } */ diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr66752-3.c b/gcc/testsuite/gcc.dg/tree-ssa/pr66752-3.c index e1464e21170..922a331b217 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/pr66752-3.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr66752-3.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -fdump-tree-thread1-details -fdump-tree-dce2" } */ +/* { dg-options "-O2 -fdump-tree-thread1-details -fdump-tree-thread3" } */ extern int status, pt; extern int count; @@ -32,10 +32,15 @@ foo (int N, int c, int b, int *a) pt--; } -/* There are 4 jump threading opportunities, all of which will be - realized, which will eliminate testing of FLAG, completely. */ -/* { dg-final { scan-tree-dump-times "Registering jump" 4 "thread1"} } */ +/* There are 2 jump threading opportunities (which don't cross loops), + all of which will be realized, which will eliminate testing of + FLAG, completely. */ +/* { dg-final { scan-tree-dump-times "Registering jump" 2 "thread1"} } */ -/* There should be no assignments or references to FLAG, verify they're - eliminated as early as possible. */ -/* { dg-final { scan-tree-dump-not "if .flag" "dce2"} } */ +/* We used to remove references to FLAG by DCE2, but this was + depending on early threaders threading through loop boundaries + (which we shouldn't do). However, the late threading passes, which + run after loop optimizations , can successfully eliminate the + references to FLAG. Verify that ther are no references by the late + threading passes. */ +/* { dg-final { scan-tree-dump-not "if .flag" "thread3"} } */ diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr77445-2.c b/gcc/testsuite/gcc.dg/tree-ssa/pr77445-2.c index f9fc212f49e..01a0f1f197d 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/pr77445-2.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr77445-2.c @@ -123,8 +123,8 @@ enum STATES FMS( u8 **in , u32 *transitions) { aarch64 has the highest CASE_VALUES_THRESHOLD in GCC. It's high enough to change decisions in switch expansion which in turn can expose new jump threading opportunities. Skip the later tests on aarch64. */ -/* { dg-final { scan-tree-dump "Jumps threaded: 1\[1-9\]" "thread1" } } */ -/* { dg-final { scan-tree-dump-times "Invalid sum" 4 "thread1" } } */ +/* { dg-final { scan-tree-dump "Jumps threaded: 9" "thread1" } } */ +/* { dg-final { scan-tree-dump-times "Invalid sum" 1 "thread1" } } */ /* { dg-final { scan-tree-dump-not "optimizing for size" "thread1" } } */ /* { dg-final { scan-tree-dump-not "optimizing for size" "thread2" } } */ /* { dg-final { scan-tree-dump-not "optimizing for size" "thread3" { target { ! aarch64*-*-* } } } } */ diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-thread-18.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-thread-18.c index 60d4f76f076..2d78d045516 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-thread-18.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-thread-18.c @@ -21,5 +21,7 @@ condition. All the cases are picked up by VRP1 as jump threads. */ -/* { dg-final { scan-tree-dump-times "Registering jump" 6 "thread1" } } */ + +/* There used to be 6 jump threads found by thread1, but they all + depended on threading through distinct loops in ethread. */ /* { dg-final { scan-tree-dump-times "Threaded" 2 "vrp1" } } */ diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-thread-7.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-thread-7.c index e3d4b311c03..16abcde5053 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-thread-7.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-thread-7.c @@ -1,8 +1,8 @@ /* { dg-do compile } */ /* { dg-options "-O2 -fdump-tree-thread1-stats -fdump-tree-thread2-stats -fdump-tree-dom2-stats -fdump-tree-thread3-stats -fdump-tree-dom3-stats -fdump-tree-vrp2-stats -fno-guess-branch-probability" } */ -/* { dg-final { scan-tree-dump "Jumps threaded: 18" "thread1" } } */ -/* { dg-final { scan-tree-dump "Jumps threaded: 8" "thread3" { target { ! aarch64*-*-* } } } } */ +/* { dg-final { scan-tree-dump "Jumps threaded: 12" "thread1" } } */ +/* { dg-final { scan-tree-dump "Jumps threaded: 5" "thread3" { target { ! aarch64*-*-* } } } } */ /* { dg-final { scan-tree-dump-not "Jumps threaded" "dom2" } } */ /* aarch64 has the highest CASE_VALUES_THRESHOLD in GCC. It's high enough diff --git a/gcc/testsuite/gcc.dg/vect/bb-slp-16.c b/gcc/testsuite/gcc.dg/vect/bb-slp-16.c index 664e93e9b60..e68a9b62535 100644 --- a/gcc/testsuite/gcc.dg/vect/bb-slp-16.c +++ b/gcc/testsuite/gcc.dg/vect/bb-slp-16.c @@ -1,8 +1,5 @@ /* { dg-require-effective-target vect_int } */ -/* See note below as to why we disable threading. */ -/* { dg-additional-options "-fdisable-tree-thread1" } */ - #include <stdarg.h> #include "tree-vect.h" @@ -30,10 +27,6 @@ main1 (int dummy) *pout++ = *pin++ + a; *pout++ = *pin++ + a; *pout++ = *pin++ + a; - /* In some architectures like ppc64, jump threading may thread - the iteration where i==0 such that we no longer optimize the - BB. Another alternative to disable jump threading would be - to wrap the read from `i' into a function returning i. */ if (arr[i] = i) a = i; else diff --git a/gcc/tree-ssa-threadupdate.c b/gcc/tree-ssa-threadupdate.c index baac11280fa..2b9b8f81274 100644 --- a/gcc/tree-ssa-threadupdate.c +++ b/gcc/tree-ssa-threadupdate.c @@ -2757,6 +2757,58 @@ fwd_jt_path_registry::update_cfg (bool may_peel_loop_headers) return retval; } +bool +jt_path_registry::cancel_invalid_paths (vec<jump_thread_edge *> &path) +{ + gcc_checking_assert (!path.is_empty ()); + edge taken_edge = path[path.length () - 1]->e; + loop_p loop = taken_edge->src->loop_father; + bool seen_latch = false; + bool path_crosses_loops = false; + + for (unsigned int i = 0; i < path.length (); i++) + { + edge e = path[i]->e; + + if (e == NULL) + { + // NULL outgoing edges on a path can happen for jumping to a + // constant address. + cancel_thread (&path, "Found NULL edge in jump threading path"); + return true; + } + + if (loop->latch == e->src || loop->latch == e->dest) + seen_latch = true; + + // The first entry represents the block with an outgoing edge + // that we will redirect to the jump threading path. Thus we + // don't care about that block's loop father. + if ((i > 0 && e->src->loop_father != loop) + || e->dest->loop_father != loop) + path_crosses_loops = true; + + if (flag_checking && !m_backedge_threads) + gcc_assert ((path[i]->e->flags & EDGE_DFS_BACK) == 0); + } + + if (cfun->curr_properties & PROP_loop_opts_done) + return false; + + if (seen_latch && empty_block_p (loop->latch)) + { + cancel_thread (&path, "Threading through latch before loop opts " + "would create non-empty latch"); + return true; + } + if (path_crosses_loops) + { + cancel_thread (&path, "Path crosses loops"); + return true; + } + return false; +} + /* Register a jump threading opportunity. We queue up all the jump threading opportunities discovered by a pass and update the CFG and SSA form all at once. @@ -2776,19 +2828,8 @@ jt_path_registry::register_jump_thread (vec<jump_thread_edge *> *path) return false; } - /* First make sure there are no NULL outgoing edges on the jump threading - path. That can happen for jumping to a constant address. */ - for (unsigned int i = 0; i < path->length (); i++) - { - if ((*path)[i]->e == NULL) - { - cancel_thread (path, "Found NULL edge in jump threading path"); - return false; - } - - if (flag_checking && !m_backedge_threads) - gcc_assert (((*path)[i]->e->flags & EDGE_DFS_BACK) == 0); - } + if (cancel_invalid_paths (*path)) + return false; if (dump_file && (dump_flags & TDF_DETAILS)) dump_jump_thread_path (dump_file, *path, true); diff --git a/gcc/tree-ssa-threadupdate.h b/gcc/tree-ssa-threadupdate.h index 8b48a671212..d68795c9f27 100644 --- a/gcc/tree-ssa-threadupdate.h +++ b/gcc/tree-ssa-threadupdate.h @@ -75,6 +75,7 @@ protected: unsigned long m_num_threaded_edges; private: virtual bool update_cfg (bool peel_loop_headers) = 0; + bool cancel_invalid_paths (vec<jump_thread_edge *> &path); jump_thread_path_allocator m_allocator; // True if threading through back edges is allowed. This is only // allowed in the generic copier in the backward threader. </cut>

4 years, 1 month

[TCWG CI] 464.h264ref slowed down by 7% after llvm: [JumpThreading] Ignore free instructions

by ci_notify＠linaro.org

After llvm commit 1e3c6fc7cb9d2ee6a5328881f95d6643afeadbff Author: Nikita Popov <nikita.ppv(a)gmail.com> [JumpThreading] Ignore free instructions the following benchmarks slowed down by more than 2%: - 464.h264ref slowed down by 7% from 10715 to 11434 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-… - Last_good save-temps: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-… - Baseline save-temps: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-… 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 -flto - Hardware: NVidia TX1 4x Cortex-A57 This benchmarking CI is work-in-progress, and we welcome feedback and suggestions at linaro-toolchain(a)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_LTO First_bad build: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-… Last_good build: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-… Baseline build: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-… Even more details: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-… Reproduce builds: <cut> mkdir investigate-llvm-1e3c6fc7cb9d2ee6a5328881f95d6643afeadbff cd investigate-llvm-1e3c6fc7cb9d2ee6a5328881f95d6643afeadbff # 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-… --fail curl -o artifacts/manifests/build-parameters.sh https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-… --fail curl -o artifacts/test.sh https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-… --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 1e3c6fc7cb9d2ee6a5328881f95d6643afeadbff ../artifacts/test.sh # Reproduce last_good build git checkout --detach 1a6e1ee42a6af255d45e3fd2fe87021dd31f79bb ../artifacts/test.sh cd .. </cut> Full commit (up to 1000 lines): <cut> commit 1e3c6fc7cb9d2ee6a5328881f95d6643afeadbff Author: Nikita Popov <nikita.ppv(a)gmail.com> Date: Wed Sep 22 21:34:24 2021 +0200 [JumpThreading] Ignore free instructions This is basically D108837 but for jump threading. Free instructions should be ignored for the threading decision. JumpThreading already skips some free instructions (like pointer bitcasts), but does not skip various free intrinsics -- in fact, it currently gives them a fairly large cost of 2. Differential Revision: https://reviews.llvm.org/D110290 --- .../include/llvm/Transforms/Scalar/JumpThreading.h | 8 +-- llvm/lib/Transforms/Scalar/JumpThreading.cpp | 61 ++++++++++------------ .../Transforms/JumpThreading/free_instructions.ll | 24 +++++---- .../inlining-alignment-assumptions.ll | 12 ++--- 4 files changed, 52 insertions(+), 53 deletions(-) diff --git a/llvm/include/llvm/Transforms/Scalar/JumpThreading.h b/llvm/include/llvm/Transforms/Scalar/JumpThreading.h index 816ea1071e52..0ac7d7c62b7a 100644 --- a/llvm/include/llvm/Transforms/Scalar/JumpThreading.h +++ b/llvm/include/llvm/Transforms/Scalar/JumpThreading.h @@ -44,6 +44,7 @@ class PHINode; class SelectInst; class SwitchInst; class TargetLibraryInfo; +class TargetTransformInfo; class Value; /// A private "module" namespace for types and utilities used by @@ -78,6 +79,7 @@ enum ConstantPreference { WantInteger, WantBlockAddress }; /// revectored to the false side of the second if. class JumpThreadingPass : public PassInfoMixin<JumpThreadingPass> { TargetLibraryInfo *TLI; + TargetTransformInfo *TTI; LazyValueInfo *LVI; AAResults *AA; DomTreeUpdater *DTU; @@ -99,9 +101,9 @@ public: JumpThreadingPass(bool InsertFreezeWhenUnfoldingSelect = false, int T = -1); // Glue for old PM. - bool runImpl(Function &F, TargetLibraryInfo *TLI, LazyValueInfo *LVI, - AAResults *AA, DomTreeUpdater *DTU, bool HasProfileData, - std::unique_ptr<BlockFrequencyInfo> BFI, + bool runImpl(Function &F, TargetLibraryInfo *TLI, TargetTransformInfo *TTI, + LazyValueInfo *LVI, AAResults *AA, DomTreeUpdater *DTU, + bool HasProfileData, std::unique_ptr<BlockFrequencyInfo> BFI, std::unique_ptr<BranchProbabilityInfo> BPI); PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM); diff --git a/llvm/lib/Transforms/Scalar/JumpThreading.cpp b/llvm/lib/Transforms/Scalar/JumpThreading.cpp index 688902ecb9ff..fe9a7211967c 100644 --- a/llvm/lib/Transforms/Scalar/JumpThreading.cpp +++ b/llvm/lib/Transforms/Scalar/JumpThreading.cpp @@ -331,7 +331,7 @@ bool JumpThreading::runOnFunction(Function &F) { BFI.reset(new BlockFrequencyInfo(F, *BPI, LI)); } - bool Changed = Impl.runImpl(F, TLI, LVI, AA, &DTU, F.hasProfileData(), + bool Changed = Impl.runImpl(F, TLI, TTI, LVI, AA, &DTU, F.hasProfileData(), std::move(BFI), std::move(BPI)); if (PrintLVIAfterJumpThreading) { dbgs() << "LVI for function '" << F.getName() << "':\n"; @@ -360,7 +360,7 @@ PreservedAnalyses JumpThreadingPass::run(Function &F, BFI.reset(new BlockFrequencyInfo(F, *BPI, LI)); } - bool Changed = runImpl(F, &TLI, &LVI, &AA, &DTU, F.hasProfileData(), + bool Changed = runImpl(F, &TLI, &TTI, &LVI, &AA, &DTU, F.hasProfileData(), std::move(BFI), std::move(BPI)); if (PrintLVIAfterJumpThreading) { @@ -377,12 +377,14 @@ PreservedAnalyses JumpThreadingPass::run(Function &F, } bool JumpThreadingPass::runImpl(Function &F, TargetLibraryInfo *TLI_, - LazyValueInfo *LVI_, AliasAnalysis *AA_, - DomTreeUpdater *DTU_, bool HasProfileData_, + TargetTransformInfo *TTI_, LazyValueInfo *LVI_, + AliasAnalysis *AA_, DomTreeUpdater *DTU_, + bool HasProfileData_, std::unique_ptr<BlockFrequencyInfo> BFI_, std::unique_ptr<BranchProbabilityInfo> BPI_) { LLVM_DEBUG(dbgs() << "Jump threading on function '" << F.getName() << "'\n"); TLI = TLI_; + TTI = TTI_; LVI = LVI_; AA = AA_; DTU = DTU_; @@ -514,7 +516,8 @@ static void replaceFoldableUses(Instruction *Cond, Value *ToVal) { /// Return the cost of duplicating a piece of this block from first non-phi /// and before StopAt instruction to thread across it. Stop scanning the block /// when exceeding the threshold. If duplication is impossible, returns ~0U. -static unsigned getJumpThreadDuplicationCost(BasicBlock *BB, +static unsigned getJumpThreadDuplicationCost(const TargetTransformInfo *TTI, + BasicBlock *BB, Instruction *StopAt, unsigned Threshold) { assert(StopAt->getParent() == BB && "Not an instruction from proper BB?"); @@ -550,26 +553,21 @@ static unsigned getJumpThreadDuplicationCost(BasicBlock *BB, if (Size > Threshold) return Size; - // Debugger intrinsics don't incur code size. - if (isa<DbgInfoIntrinsic>(I)) continue; - - // Pseudo-probes don't incur code size. - if (isa<PseudoProbeInst>(I)) - continue; - - // If this is a pointer->pointer bitcast, it is free. - if (isa<BitCastInst>(I) && I->getType()->isPointerTy()) - continue; - - // Freeze instruction is free, too. - if (isa<FreezeInst>(I)) - continue; - // Bail out if this instruction gives back a token type, it is not possible // to duplicate it if it is used outside this BB. if (I->getType()->isTokenTy() && I->isUsedOutsideOfBlock(BB)) return ~0U; + // Blocks with NoDuplicate are modelled as having infinite cost, so they + // are never duplicated. + if (const CallInst *CI = dyn_cast<CallInst>(I)) + if (CI->cannotDuplicate() || CI->isConvergent()) + return ~0U; + + if (TTI->getUserCost(&*I, TargetTransformInfo::TCK_SizeAndLatency) + == TargetTransformInfo::TCC_Free) + continue; + // All other instructions count for at least one unit. ++Size; @@ -578,11 +576,7 @@ static unsigned getJumpThreadDuplicationCost(BasicBlock *BB, // as having cost of 2 total, and if they are a vector intrinsic, we model // them as having cost 1. if (const CallInst *CI = dyn_cast<CallInst>(I)) { - if (CI->cannotDuplicate() || CI->isConvergent()) - // Blocks with NoDuplicate are modelled as having infinite cost, so they - // are never duplicated. - return ~0U; - else if (!isa<IntrinsicInst>(CI)) + if (!isa<IntrinsicInst>(CI)) Size += 3; else if (!CI->getType()->isVectorTy()) Size += 1; @@ -2234,10 +2228,10 @@ bool JumpThreadingPass::maybethreadThroughTwoBasicBlocks(BasicBlock *BB, } // Compute the cost of duplicating BB and PredBB. - unsigned BBCost = - getJumpThreadDuplicationCost(BB, BB->getTerminator(), BBDupThreshold); + unsigned BBCost = getJumpThreadDuplicationCost( + TTI, BB, BB->getTerminator(), BBDupThreshold); unsigned PredBBCost = getJumpThreadDuplicationCost( - PredBB, PredBB->getTerminator(), BBDupThreshold); + TTI, PredBB, PredBB->getTerminator(), BBDupThreshold); // Give up if costs are too high. We need to check BBCost and PredBBCost // individually before checking their sum because getJumpThreadDuplicationCost @@ -2345,8 +2339,8 @@ bool JumpThreadingPass::tryThreadEdge( return false; } - unsigned JumpThreadCost = - getJumpThreadDuplicationCost(BB, BB->getTerminator(), BBDupThreshold); + unsigned JumpThreadCost = getJumpThreadDuplicationCost( + TTI, BB, BB->getTerminator(), BBDupThreshold); if (JumpThreadCost > BBDupThreshold) { LLVM_DEBUG(dbgs() << " Not threading BB '" << BB->getName() << "' - Cost is too high: " << JumpThreadCost << "\n"); @@ -2614,8 +2608,8 @@ bool JumpThreadingPass::duplicateCondBranchOnPHIIntoPred( return false; } - unsigned DuplicationCost = - getJumpThreadDuplicationCost(BB, BB->getTerminator(), BBDupThreshold); + unsigned DuplicationCost = getJumpThreadDuplicationCost( + TTI, BB, BB->getTerminator(), BBDupThreshold); if (DuplicationCost > BBDupThreshold) { LLVM_DEBUG(dbgs() << " Not duplicating BB '" << BB->getName() << "' - Cost is too high: " << DuplicationCost << "\n"); @@ -3031,7 +3025,8 @@ bool JumpThreadingPass::threadGuard(BasicBlock *BB, IntrinsicInst *Guard, ValueToValueMapTy UnguardedMapping, GuardedMapping; Instruction *AfterGuard = Guard->getNextNode(); - unsigned Cost = getJumpThreadDuplicationCost(BB, AfterGuard, BBDupThreshold); + unsigned Cost = + getJumpThreadDuplicationCost(TTI, BB, AfterGuard, BBDupThreshold); if (Cost > BBDupThreshold) return false; // Duplicate all instructions before the guard and the guard itself to the diff --git a/llvm/test/Transforms/JumpThreading/free_instructions.ll b/llvm/test/Transforms/JumpThreading/free_instructions.ll index f768ec996779..76392af77d33 100644 --- a/llvm/test/Transforms/JumpThreading/free_instructions.ll +++ b/llvm/test/Transforms/JumpThreading/free_instructions.ll @@ -5,26 +5,28 @@ ; the jump threading threshold, as everything else are free instructions. define i32 @free_instructions(i1 %c, i32* %p) { ; CHECK-LABEL: @free_instructions( -; CHECK-NEXT: br i1 [[C:%.*]], label [[IF:%.*]], label [[ELSE:%.*]] -; CHECK: if: +; CHECK-NEXT: br i1 [[C:%.*]], label [[IF2:%.*]], label [[ELSE2:%.*]] +; CHECK: if2: ; CHECK-NEXT: store i32 -1, i32* [[P:%.*]], align 4 -; CHECK-NEXT: br label [[JOIN:%.*]] -; CHECK: else: -; CHECK-NEXT: store i32 -2, i32* [[P]], align 4 -; CHECK-NEXT: br label [[JOIN]] -; CHECK: join: ; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata [[META0:![0-9]+]]) ; CHECK-NEXT: store i32 1, i32* [[P]], align 4, !noalias !0 ; CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(i32* [[P]], i64 32) ] ; CHECK-NEXT: store i32 2, i32* [[P]], align 4 +; CHECK-NEXT: [[P21:%.*]] = bitcast i32* [[P]] to i8* +; CHECK-NEXT: [[P32:%.*]] = call i8* @llvm.launder.invariant.group.p0i8(i8* [[P21]]) +; CHECK-NEXT: [[P43:%.*]] = bitcast i8* [[P32]] to i32* +; CHECK-NEXT: store i32 3, i32* [[P43]], align 4, !invariant.group !3 +; CHECK-NEXT: ret i32 0 +; CHECK: else2: +; CHECK-NEXT: store i32 -2, i32* [[P]], align 4 +; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata [[META4:![0-9]+]]) +; CHECK-NEXT: store i32 1, i32* [[P]], align 4, !noalias !4 +; CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(i32* [[P]], i64 32) ] +; CHECK-NEXT: store i32 2, i32* [[P]], align 4 ; CHECK-NEXT: [[P2:%.*]] = bitcast i32* [[P]] to i8* ; CHECK-NEXT: [[P3:%.*]] = call i8* @llvm.launder.invariant.group.p0i8(i8* [[P2]]) ; CHECK-NEXT: [[P4:%.*]] = bitcast i8* [[P3]] to i32* ; CHECK-NEXT: store i32 3, i32* [[P4]], align 4, !invariant.group !3 -; CHECK-NEXT: br i1 [[C]], label [[IF2:%.*]], label [[ELSE2:%.*]] -; CHECK: if2: -; CHECK-NEXT: ret i32 0 -; CHECK: else2: ; CHECK-NEXT: ret i32 1 ; br i1 %c, label %if, label %else diff --git a/llvm/test/Transforms/PhaseOrdering/inlining-alignment-assumptions.ll b/llvm/test/Transforms/PhaseOrdering/inlining-alignment-assumptions.ll index 57014e856a09..f764a59dd8a2 100644 --- a/llvm/test/Transforms/PhaseOrdering/inlining-alignment-assumptions.ll +++ b/llvm/test/Transforms/PhaseOrdering/inlining-alignment-assumptions.ll @@ -32,13 +32,10 @@ define void @caller1(i1 %c, i64* align 1 %ptr) { ; ASSUMPTIONS-OFF-NEXT: br label [[COMMON_RET]] ; ; ASSUMPTIONS-ON-LABEL: @caller1( -; ASSUMPTIONS-ON-NEXT: br i1 [[C:%.*]], label [[COMMON_RET:%.*]], label [[FALSE1:%.*]] -; ASSUMPTIONS-ON: false1: -; ASSUMPTIONS-ON-NEXT: store volatile i64 1, i64* [[PTR:%.*]], align 4 -; ASSUMPTIONS-ON-NEXT: br label [[COMMON_RET]] +; ASSUMPTIONS-ON-NEXT: br i1 [[C:%.*]], label [[COMMON_RET:%.*]], label [[FALSE2:%.*]] ; ASSUMPTIONS-ON: common.ret: -; ASSUMPTIONS-ON-NEXT: [[DOTSINK:%.*]] = phi i64 [ 3, [[FALSE1]] ], [ 2, [[TMP0:%.*]] ] -; ASSUMPTIONS-ON-NEXT: call void @llvm.assume(i1 true) [ "align"(i64* [[PTR]], i64 8) ] +; ASSUMPTIONS-ON-NEXT: [[DOTSINK:%.*]] = phi i64 [ 3, [[FALSE2]] ], [ 2, [[TMP0:%.*]] ] +; ASSUMPTIONS-ON-NEXT: call void @llvm.assume(i1 true) [ "align"(i64* [[PTR:%.*]], i64 8) ] ; ASSUMPTIONS-ON-NEXT: store volatile i64 0, i64* [[PTR]], align 8 ; ASSUMPTIONS-ON-NEXT: store volatile i64 -1, i64* [[PTR]], align 8 ; ASSUMPTIONS-ON-NEXT: store volatile i64 -1, i64* [[PTR]], align 8 @@ -47,6 +44,9 @@ define void @caller1(i1 %c, i64* align 1 %ptr) { ; ASSUMPTIONS-ON-NEXT: store volatile i64 -1, i64* [[PTR]], align 8 ; ASSUMPTIONS-ON-NEXT: store volatile i64 [[DOTSINK]], i64* [[PTR]], align 8 ; ASSUMPTIONS-ON-NEXT: ret void +; ASSUMPTIONS-ON: false2: +; ASSUMPTIONS-ON-NEXT: store volatile i64 1, i64* [[PTR]], align 4 +; ASSUMPTIONS-ON-NEXT: br label [[COMMON_RET]] ; br i1 %c, label %true1, label %false1 </cut>

4 years, 1 month

[ACTIVITY] report week ending 24 Sep

by Peter Maydell

Progress * UM-2 [QEMU upstream maintainership] + Still looking at the mess that is non-unique bus names. Worked through exactly which devices and machine types are affected for the i2c bus. + Sent a patchset which tries to make the "create a bus" function names a bit more regular across different bus types. * QEMU-406 [QEMU support for MVE (M-profile Vector Extension; Helium)] + Luis figured out why GDB was crashing when fed the MVE XML by QEMU's gdbstub; this was a combination of QEMU giving GDB some non-standard extra registers in its "vfp" XML feature and GDB not being robust enough against those unexpected extras. Sent out a patchset which cleans up QEMU's XML in this area and also implements the extra XML for MVE. (This will only go into QEMU once the GDB patches have landed and the XML format is nailed down.) -- PMM

4 years, 1 month

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