Dear contributor,

Our automatic CI has detected problems related to your patch(es). Please find some details below.

In tcwg_flang_test/main-aarch64-Ofast-sve_vls-lto-lld, after:
  | commit llvmorg-23-init-18988-g9ce63d09cff0
  | Author: carlobertolli <carlo.bertolli@amd.com>
  | Date:   Thu Jun 11 14:19:36 2026 -0500
  | 
  |     [AMDGPU][SCEV] Tighten max backedge-taken count for shift recurrence loops. (#197292)
  |     
  |     Application code on AMDGPUs often uses the following pattern:
  |     
  |     for (int i = blockDim.x / 2; i >= 1; i >>= 1)
  | ... 19 lines of the commit log omitted.

Produces 2 regressions:
  | 
  | regressions.sum:
  | Running test-suite:Fujitsu/Fortran/0640 ...
  | FAIL: test-suite :: Fujitsu/Fortran/0640/Fujitsu-Fortran-0640_0306.test
  | Running test-suite:Fujitsu/Fortran/0641 ...
  | FAIL: test-suite :: Fujitsu/Fortran/0641/Fujitsu-Fortran-0641_0279.test
  | # "FAIL" means : the execution of the compiled binary failed / output of the binary differs from the expected one

Used configuration :
  * Toolchain : cmake -G Ninja  ../llvm/llvm "-DLLVM_ENABLE_PROJECTS=clang;lld;flang;clang-tools-extra"           "-DLLVM_ENABLE_RUNTIMES=openmp" 	  -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=True 	  -DCMAKE_INSTALL_PREFIX=../llvm-install 	  "-DLLVM_TARGETS_TO_BUILD=AArch64" -DCLANG_DEFAULT_LINKER=lld
  * Testsuite : export LD_LIBRARY_PATH=$\WORKSPACE/llvm-install/lib/aarch64-unknown-linux-gnu$\{LD_LIBRARY_PATH:+:$\LD_LIBRARY_PATH}
 cmake -GNinja 	-DCMAKE_C_COMPILER="$\WORKSPACE/llvm-install/bin2/clang" 	-DCMAKE_CXX_COMPILER="$\WORKSPACE/llvm-install/bin2/clang++" 	-DCMAKE_Fortran_COMPILER="$\WORKSPACE/llvm-install/bin2/flang-new" 	-DCMAKE_BUILD_TYPE=Release 	-DCMAKE_C_FLAGS= -DCMAKE_CXX_FLAGS= -DCMAKE_Fortran_FLAGS= 	-DCMAKE_C_FLAGS_RELEASE="-O3 -ffast-math -march=armv8.4-a+sve -msve-vector-bits=256 -flto -fuse-ld=lld -DNDEBUG" 	-DCMAKE_CXX_FLAGS_RELEASE="-O3 -ffast-math -march=armv8.4-a+sve -msve-vector-bits=256 -flto -fuse-ld=lld -DNDEBUG" 	-DCMAKE_Fortran_FLAGS_RELEASE="-O3 -ffast-math -march=armv8.4-a+sve -msve-vector-bits=256 -flto -fuse-ld=lld -DNDEBUG"         -DTEST_SUITE_FORTRAN=ON -DTEST_SUITE_SUBDIRS=Fujitsu -DTEST_SUITE_FUJITSU_WITH_FAST_MATH=ON 	"$\WORKSPACE/test/test-suite"

We track this bug report under https://linaro.atlassian.net/browse/LLVM-2234. (Require Linaro login) Please let us know if you have a fix.

If you have any questions regarding this report, please ask on linaro-toolchain@lists.linaro.org mailing list.

-----------------8<--------------------------8<--------------------------8<--------------------------

The information below contains the details of the failures, and the ways to reproduce a debug environment:

You can find the failure logs in *.log.1.xz files in
 * http://54.172.246.49:9090/jobs/tcwg_flang_test--main-aarch64-Ofast-sve_vls-lto-lld-build/builds/10339/archive/artifacts/00-sumfiles/
The full lists of regressions and improvements as well as configure and make commands are in
 * http://54.172.246.49:9090/jobs/tcwg_flang_test--main-aarch64-Ofast-sve_vls-lto-lld-build/builds/10339/archive/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * http://54.172.246.49:9090/jobs/tcwg_flang_test--main-aarch64-Ofast-sve_vls-lto-lld-build/builds/10339/archive/artifacts/sumfiles/xfails.xfail

Fujitsu testsuite : https://github.com/fujitsu/compiler-test-suite/

Current build   : http://54.172.246.49:9090/jobs/tcwg_flang_test--main-aarch64-Ofast-sve_vls-lto-lld-build/builds/10339/archive/artifacts/
Reference build : http://54.172.246.49:9090/jobs/tcwg_flang_test--main-aarch64-Ofast-sve_vls-lto-lld-build/builds/10338/archive/artifacts/

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/llvm/sha1/9ce63d09cff0bf07da9623b753010112db87b1d7/tcwg_flang_test/main-aarch64-Ofast-sve_vls-lto-lld/reproduction_instructions.txt

Full commit : https://github.com/llvm/llvm-project/commit/9ce63d09cff0bf07da9623b753010112db87b1d7