Identified regression caused by *llvm:d2bb6d512c0f7da8749de51522a0a98f3f08242a*: commit d2bb6d512c0f7da8749de51522a0a98f3f08242a Author: Min-Yih Hsu minyihh@uci.edu

[X86] Add explicit library dependency on LLVMInstrumentation

Results regressed to (for first_bad == d2bb6d512c0f7da8749de51522a0a98f3f08242a) # 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 -- -O2 artifacts/build-d2bb6d512c0f7da8749de51522a0a98f3f08242a/results_id: 1 # 433.milc,milc_base.default regressed by 103 # 433.milc,[.] mult_su3_mat_vec regressed by 123

from (for last_good == ef8707574bbc7d264644d9e6730118cc0addd871) # 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 -- -O2 artifacts/build-ef8707574bbc7d264644d9e6730118cc0addd871/results_id: 1

This commit has regressed these CI configurations: - tcwg_bmk_llvm_tx1/llvm-master-aarch64-spec2k6-O2

Artifacts of last_good build: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-a... Artifacts of first_bad build: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-a... Even more details: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-a...

Reproduce builds: <cut> mkdir investigate-llvm-d2bb6d512c0f7da8749de51522a0a98f3f08242a cd investigate-llvm-d2bb6d512c0f7da8749de51522a0a98f3f08242a

# 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-a... --fail curl -o artifacts/manifests/build-parameters.sh https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-a... --fail curl -o artifacts/test.sh https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tx1-llvm-master-a... --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 d2bb6d512c0f7da8749de51522a0a98f3f08242a ../artifacts/test.sh

# Reproduce last_good build git checkout --detach ef8707574bbc7d264644d9e6730118cc0addd871 ../artifacts/test.sh

cd .. </cut>

Full commit (up to 1000 lines): <cut> commit d2bb6d512c0f7da8749de51522a0a98f3f08242a Author: Min-Yih Hsu minyihh@uci.edu Date: Tue Aug 24 14:07:21 2021 -0700

[X86] Add explicit library dependency on LLVMInstrumentation

Patch 9588b685c6b2 introduced dependency on ASAN. But it didn't explicitly put LLVMInstrumentation as one of the library dependencies such that the build will fail if we're building LLVM as shared libraries (i.e. -DBUILD_SHARED_LIBS=ON). This patch explicitly links X86CodeGen against the Instrumentation component.

Differential Revision: https://reviews.llvm.org/D108662 --- llvm/lib/Target/X86/CMakeLists.txt | 1 + 1 file changed, 1 insertion(+)

diff --git a/llvm/lib/Target/X86/CMakeLists.txt b/llvm/lib/Target/X86/CMakeLists.txt index a2816f6e5e84..d13c5d250554 100644 --- a/llvm/lib/Target/X86/CMakeLists.txt +++ b/llvm/lib/Target/X86/CMakeLists.txt @@ -91,6 +91,7 @@ add_llvm_target(X86CodeGen ${sources} AsmPrinter CodeGen Core + Instrumentation MC SelectionDAG Support </cut>