[llvm] [AArch64][SVE] Select non-temporal instructions for unpredicated loads/stores with the nontemporal flag (PR #171261)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-x86_64-linux` running on `sanitizer-buildbot2` while building `llvm` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/66/builds/23754

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
[229/235] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64-with-call.o
[230/235] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64.o
[231/235] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64-with-call.o
[232/235] Generating Msan-x86_64-with-call-Test
[233/235] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64.o
[234/235] Generating Msan-x86_64-Test
[234/235] Running compiler_rt regression tests
llvm-lit: /home/b/sanitizer-x86_64-linux/build/llvm-project/llvm/utils/lit/lit/main.py:74: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
-- Testing: 6157 tests, 64 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90
FAIL: XRay-x86_64-linux :: TestCases/Posix/basic-filtering.cpp (5815 of 6157)
******************** TEST 'XRay-x86_64-linux :: TestCases/Posix/basic-filtering.cpp' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 4
/home/b/sanitizer-x86_64-linux/build/build_default/bin/clang  --driver-mode=g++ -fxray-instrument  -m64 -nobuiltininc -I/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/include -idirafter /home/b/sanitizer-x86_64-linux/build/build_default/lib/clang/22/include -resource-dir=/home/b/sanitizer-x86_64-linux/build/compiler_rt_build -Wl,-rpath,/home/b/sanitizer-x86_64-linux/build/compiler_rt_build/lib/linux   -std=c++11 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp -o /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp -g
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/bin/clang --driver-mode=g++ -fxray-instrument -m64 -nobuiltininc -I/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/include -idirafter /home/b/sanitizer-x86_64-linux/build/build_default/lib/clang/22/include -resource-dir=/home/b/sanitizer-x86_64-linux/build/compiler_rt_build -Wl,-rpath,/home/b/sanitizer-x86_64-linux/build/compiler_rt_build/lib/linux -std=c++11 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp -o /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp -g
# note: command had no output on stdout or stderr
# RUN: at line 5
rm -f basic-filtering-*
# executed command: rm -f 'basic-filtering-*'
# note: command had no output on stdout or stderr
# RUN: at line 6
env XRAY_OPTIONS="patch_premain=true xray_mode=xray-basic verbosity=1      xray_logfile_base=basic-filtering-      xray_naive_log_func_duration_threshold_us=1000      xray_naive_log_max_stack_depth=2"  /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp 2>&1 |      FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp
# executed command: env 'XRAY_OPTIONS=patch_premain=true xray_mode=xray-basic verbosity=1      xray_logfile_base=basic-filtering-      xray_naive_log_func_duration_threshold_us=1000      xray_naive_log_max_stack_depth=2' /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp
# note: command had no output on stdout or stderr
# executed command: FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp
# note: command had no output on stdout or stderr
# RUN: at line 11
ls basic-filtering-* | head -1 | tr -d '\n' > /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp.log
# executed command: ls 'basic-filtering-*'
# note: command had no output on stdout or stderr
# executed command: head -1
# note: command had no output on stdout or stderr
# executed command: tr -d '\n'
# note: command had no output on stdout or stderr
# RUN: at line 12
/home/b/sanitizer-x86_64-linux/build/build_default/./bin/llvm-xray convert --symbolize --output-format=yaml -instr_map=/home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp      "/home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/basic-filtering-basic-filtering.cpp.tmp.b1ocfr" |      FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp --check-prefix TRACE
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/./bin/llvm-xray convert --symbolize --output-format=yaml -instr_map=/home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp '%{readfile:/home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp.log}'
# note: command had no output on stdout or stderr
# executed command: FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp --check-prefix TRACE
# note: command had no output on stdout or stderr
# RUN: at line 15
rm -f basic-filtering-*
# executed command: rm -f 'basic-filtering-*'
# note: command had no output on stdout or stderr
# RUN: at line 18
Step 16 (test standalone compiler-rt) failure: test standalone compiler-rt (failure)
...
[229/235] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64-with-call.o
[230/235] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64.o
[231/235] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64-with-call.o
[232/235] Generating Msan-x86_64-with-call-Test
[233/235] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64.o
[234/235] Generating Msan-x86_64-Test
[234/235] Running compiler_rt regression tests
llvm-lit: /home/b/sanitizer-x86_64-linux/build/llvm-project/llvm/utils/lit/lit/main.py:74: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
-- Testing: 6157 tests, 64 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90
FAIL: XRay-x86_64-linux :: TestCases/Posix/basic-filtering.cpp (5815 of 6157)
******************** TEST 'XRay-x86_64-linux :: TestCases/Posix/basic-filtering.cpp' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 4
/home/b/sanitizer-x86_64-linux/build/build_default/bin/clang  --driver-mode=g++ -fxray-instrument  -m64 -nobuiltininc -I/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/include -idirafter /home/b/sanitizer-x86_64-linux/build/build_default/lib/clang/22/include -resource-dir=/home/b/sanitizer-x86_64-linux/build/compiler_rt_build -Wl,-rpath,/home/b/sanitizer-x86_64-linux/build/compiler_rt_build/lib/linux   -std=c++11 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp -o /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp -g
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/bin/clang --driver-mode=g++ -fxray-instrument -m64 -nobuiltininc -I/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/include -idirafter /home/b/sanitizer-x86_64-linux/build/build_default/lib/clang/22/include -resource-dir=/home/b/sanitizer-x86_64-linux/build/compiler_rt_build -Wl,-rpath,/home/b/sanitizer-x86_64-linux/build/compiler_rt_build/lib/linux -std=c++11 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp -o /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp -g
# note: command had no output on stdout or stderr
# RUN: at line 5
rm -f basic-filtering-*
# executed command: rm -f 'basic-filtering-*'
# note: command had no output on stdout or stderr
# RUN: at line 6
env XRAY_OPTIONS="patch_premain=true xray_mode=xray-basic verbosity=1      xray_logfile_base=basic-filtering-      xray_naive_log_func_duration_threshold_us=1000      xray_naive_log_max_stack_depth=2"  /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp 2>&1 |      FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp
# executed command: env 'XRAY_OPTIONS=patch_premain=true xray_mode=xray-basic verbosity=1      xray_logfile_base=basic-filtering-      xray_naive_log_func_duration_threshold_us=1000      xray_naive_log_max_stack_depth=2' /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp
# note: command had no output on stdout or stderr
# executed command: FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp
# note: command had no output on stdout or stderr
# RUN: at line 11
ls basic-filtering-* | head -1 | tr -d '\n' > /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp.log
# executed command: ls 'basic-filtering-*'
# note: command had no output on stdout or stderr
# executed command: head -1
# note: command had no output on stdout or stderr
# executed command: tr -d '\n'
# note: command had no output on stdout or stderr
# RUN: at line 12
/home/b/sanitizer-x86_64-linux/build/build_default/./bin/llvm-xray convert --symbolize --output-format=yaml -instr_map=/home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp      "/home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/basic-filtering-basic-filtering.cpp.tmp.b1ocfr" |      FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp --check-prefix TRACE
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/./bin/llvm-xray convert --symbolize --output-format=yaml -instr_map=/home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp '%{readfile:/home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp.log}'
# note: command had no output on stdout or stderr
# executed command: FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp --check-prefix TRACE
# note: command had no output on stdout or stderr
# RUN: at line 15
rm -f basic-filtering-*
# executed command: rm -f 'basic-filtering-*'
# note: command had no output on stdout or stderr
# RUN: at line 18

```

</details>

https://github.com/llvm/llvm-project/pull/171261