After gdb-13-branchpoint-388-g71fa8692930 commit
71fa8692930cd5fc3f332415cf642d3aa5f55fc6
Author: Mike Frysinger <[email protected]>
sim: cris: move arch-specific file compilation to top-level
the following benchmarks slowed down by more than 3%:
- 481.wrf failed to build
- 416.gamess failed to build
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.
Configuration:
- Benchmark: SPEC CPU2006
- Toolchain: GCC + Glibc + GNU Linker
- Version: all components were built from their tip of trunk
- Target: arm-linux-gnueabihf
- Compiler flags: -O3 -flto -marm
- Hardware:
This benchmarking CI is work-in-progress, and we welcome feedback and
suggestions at [email protected] . 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.
For latest status see comments in https://linaro.atlassian.net/browse/GNU-692 .
Status of gdb-13-branchpoint-388-g71fa8692930 commit for
tcwg_bmk-code_speed-spec2k6:
commit 71fa8692930cd5fc3f332415cf642d3aa5f55fc6
Author: Mike Frysinger <[email protected]>
Date: Sun Jan 1 13:40:11 2023 -0500
sim: cris: move arch-specific file compilation to top-level
* gnu-arm-master-O3_LTO
** After gdb-13-branchpoint-388-g71fa8692930 commit
71fa8692930cd5fc3f332415cf642d3aa5f55fc6
** Author: Mike Frysinger <[email protected]>
**
** sim: cris: move arch-specific file compilation to top-level
**
** the following benchmarks slowed down by more than 3%:
** - 481.wrf failed to build
** - 416.gamess failed to build
**
https://ci.linaro.org/job/tcwg_bmk-code_speed-spec2k6-gnu-arm-master-O3_LTO-build/8/
Bad build:
https://ci.linaro.org/job/tcwg_bmk-code_speed-spec2k6-gnu-arm-master-O3_LTO-build/8/artifact/artifacts
Good build:
https://ci.linaro.org/job/tcwg_bmk-code_speed-spec2k6-gnu-arm-master-O3_LTO-build/7/artifact/artifacts
Reproduce current build:
<cut>
mkdir -p investigate-binutils-71fa8692930cd5fc3f332415cf642d3aa5f55fc6
cd investigate-binutils-71fa8692930cd5fc3f332415cf642d3aa5f55fc6
# Fetch scripts
git clone https://git.linaro.org/toolchain/jenkins-scripts
# Fetch manifests for bad and good builds
mkdir -p bad/artifacts good/artifacts
curl -o bad/artifacts/manifest.sh
https://ci.linaro.org/job/tcwg_bmk-code_speed-spec2k6-gnu-arm-master-O3_LTO-build/8/artifact/artifacts/manifest.sh
--fail
curl -o good/artifacts/manifest.sh
https://ci.linaro.org/job/tcwg_bmk-code_speed-spec2k6-gnu-arm-master-O3_LTO-build/7/artifact/artifacts/manifest.sh
--fail
# Reproduce bad build
(cd bad; ../jenkins-scripts/tcwg_bmk-build.sh ^^ true %%rr[top_artifacts]
artifacts)
# Reproduce good build
(cd good; ../jenkins-scripts/tcwg_bmk-build.sh ^^ true %%rr[top_artifacts]
artifacts)
</cut>
Full commit (up to 1000 lines):
<cut>
commit 71fa8692930cd5fc3f332415cf642d3aa5f55fc6
Author: Mike Frysinger <[email protected]>
Date: Sun Jan 1 13:40:11 2023 -0500
sim: cris: move arch-specific file compilation to top-level
---
sim/Makefile.in | 3 ---
sim/cris/local.mk | 3 ---
2 files changed, 6 deletions(-)
diff --git a/sim/Makefile.in b/sim/Makefile.in
index 435c36b2b83..0ad692126e7 100644
--- a/sim/Makefile.in
+++ b/sim/Makefile.in
@@ -4801,9 +4801,6 @@ testsuite/common/bits64m63.c:
testsuite/common/bits-gen$(EXEEXT) testsuite/commo
@SIM_ENABLE_ARCH_cr16_TRUE@ $(AM_V_GEN)$< >$@
@SIM_ENABLE_ARCH_cris_TRUE@$(cris_libsim_a_OBJECTS) $(cris_libsim_a_LIBADD):
cris/hw-config.h
-@SIM_ENABLE_ARCH_cris_TRUE@cris/%.o: cris/%.c
-@SIM_ENABLE_ARCH_cris_TRUE@ $(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) -C $(@D) $(@F)
-
@SIM_ENABLE_ARCH_cris_TRUE@cris/%.o: common/%.c
@SIM_ENABLE_ARCH_cris_TRUE@ $(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) -C $(@D) $(@F)
@SIM_ENABLE_ARCH_cris_TRUE@cris/modules.c: | $(cris_BUILD_OUTPUTS)
diff --git a/sim/cris/local.mk b/sim/cris/local.mk
index 912ca12a32f..3950baed7a1 100644
--- a/sim/cris/local.mk
+++ b/sim/cris/local.mk
@@ -47,9 +47,6 @@ $(%C%_libsim_a_OBJECTS) $(%C%_libsim_a_LIBADD):
%D%/hw-config.h
noinst_LIBRARIES += %D%/libsim.a
-%D%/%.o: %D%/%.c
- $(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) -C $(@D) $(@F)
-
%D%/%.o: common/%.c
$(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) -C $(@D) $(@F)
</cut>
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