[llvm] [SLP] Order clustered load base pointers by ascending offsets (PR #100653)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-ppc64le-linux` running on `ppc64le-sanitizer` while building `llvm` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/72/builds/1692

Here is the relevant piece of the build log for the reference:
```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
PASS: ThreadSanitizer-powerpc64le :: mutexset3.cpp (2333 of 2477)
PASS: ThreadSanitizer-powerpc64le :: race_on_barrier2.c (2334 of 2477)
PASS: SanitizerCommon-lsan-powerpc64le-Linux :: Linux/signal_name.c (2335 of 2477)
PASS: ThreadSanitizer-powerpc64le :: signal_in_mutex_lock.cpp (2336 of 2477)
PASS: ThreadSanitizer-powerpc64le :: signal_errno.cpp (2337 of 2477)
PASS: ThreadSanitizer-powerpc64le :: mutexset4.cpp (2338 of 2477)
PASS: ThreadSanitizer-powerpc64le :: race_on_mutex.c (2339 of 2477)
PASS: SanitizerCommon-tsan-powerpc64le-Linux :: Posix/setvbuf.cpp (2340 of 2477)
PASS: ThreadSanitizer-powerpc64le :: mutexset8.cpp (2341 of 2477)
PASS: ThreadSanitizer-powerpc64le :: race_on_write.cpp (2342 of 2477)
FAIL: ThreadSanitizer-powerpc64le :: signal_block.cpp (2343 of 2477)
******************** TEST 'ThreadSanitizer-powerpc64le :: signal_block.cpp' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 1: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/./bin/clang  -fsanitize=thread -Wall  -m64 -fno-function-sections   -gline-tables-only -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/../ -O1 /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp -o /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/tsan/POWERPC64LEConfig/Output/signal_block.cpp.tmp &&  /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/tsan/POWERPC64LEConfig/Output/signal_block.cpp.tmp 2>&1 | FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp
+ /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/./bin/clang -fsanitize=thread -Wall -m64 -fno-function-sections -gline-tables-only -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/../ -O1 /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp -o /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/tsan/POWERPC64LEConfig/Output/signal_block.cpp.tmp
+ /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/tsan/POWERPC64LEConfig/Output/signal_block.cpp.tmp
+ FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp:59:15: error: CHECK-NOT: excluded string found in input
// CHECK-NOT: WARNING: ThreadSanitizer:
              ^
<stdin>:2:1: note: found here
WARNING: ThreadSanitizer: signal handler spoils errno (pid=1084619)
^~~~~~~~~~~~~~~~~~~~~~~~~

Input file: <stdin>
Check file: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp

-dump-input=help explains the following input dump.

Input was:
<<<<<<
        1: ================== 
        2: WARNING: ThreadSanitizer: signal handler spoils errno (pid=1084619) 
not:59     !~~~~~~~~~~~~~~~~~~~~~~~~                                            error: no match expected
        3:  Signal 10 handler invoked at: 
        4:  #0 handler(int) /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp:13 (signal_block.cpp.tmp+0xff1a0) 
        5:  #1 thread(void*) /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp:25:5 (signal_block.cpp.tmp+0xff2f0) 
        6:  
        7: SUMMARY: ThreadSanitizer: signal handler spoils errno /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp:13 in handler(int) 
        8: ================== 
        9: DONE 
       10: ThreadSanitizer: reported 1 warnings 
>>>>>>

--

Step 9 (test compiler-rt debug) failure: test compiler-rt debug (failure)
...
PASS: ThreadSanitizer-powerpc64le :: mutexset3.cpp (2333 of 2477)
PASS: ThreadSanitizer-powerpc64le :: race_on_barrier2.c (2334 of 2477)
PASS: SanitizerCommon-lsan-powerpc64le-Linux :: Linux/signal_name.c (2335 of 2477)
PASS: ThreadSanitizer-powerpc64le :: signal_in_mutex_lock.cpp (2336 of 2477)
PASS: ThreadSanitizer-powerpc64le :: signal_errno.cpp (2337 of 2477)
PASS: ThreadSanitizer-powerpc64le :: mutexset4.cpp (2338 of 2477)
PASS: ThreadSanitizer-powerpc64le :: race_on_mutex.c (2339 of 2477)
PASS: SanitizerCommon-tsan-powerpc64le-Linux :: Posix/setvbuf.cpp (2340 of 2477)
PASS: ThreadSanitizer-powerpc64le :: mutexset8.cpp (2341 of 2477)
PASS: ThreadSanitizer-powerpc64le :: race_on_write.cpp (2342 of 2477)
FAIL: ThreadSanitizer-powerpc64le :: signal_block.cpp (2343 of 2477)
******************** TEST 'ThreadSanitizer-powerpc64le :: signal_block.cpp' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 1: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/./bin/clang  -fsanitize=thread -Wall  -m64 -fno-function-sections   -gline-tables-only -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/../ -O1 /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp -o /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/tsan/POWERPC64LEConfig/Output/signal_block.cpp.tmp &&  /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/tsan/POWERPC64LEConfig/Output/signal_block.cpp.tmp 2>&1 | FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp
+ /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/./bin/clang -fsanitize=thread -Wall -m64 -fno-function-sections -gline-tables-only -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/../ -O1 /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp -o /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/tsan/POWERPC64LEConfig/Output/signal_block.cpp.tmp
+ /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/runtimes/runtimes-bins/compiler-rt/test/tsan/POWERPC64LEConfig/Output/signal_block.cpp.tmp
+ FileCheck /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp:59:15: error: CHECK-NOT: excluded string found in input
// CHECK-NOT: WARNING: ThreadSanitizer:
              ^
<stdin>:2:1: note: found here
WARNING: ThreadSanitizer: signal handler spoils errno (pid=1084619)
^~~~~~~~~~~~~~~~~~~~~~~~~

Input file: <stdin>
Check file: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp

-dump-input=help explains the following input dump.

Input was:
<<<<<<
        1: ================== 
        2: WARNING: ThreadSanitizer: signal handler spoils errno (pid=1084619) 
not:59     !~~~~~~~~~~~~~~~~~~~~~~~~                                            error: no match expected
        3:  Signal 10 handler invoked at: 
        4:  #0 handler(int) /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp:13 (signal_block.cpp.tmp+0xff1a0) 
        5:  #1 thread(void*) /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp:25:5 (signal_block.cpp.tmp+0xff2f0) 
        6:  
        7: SUMMARY: ThreadSanitizer: signal handler spoils errno /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/tsan/signal_block.cpp:13 in handler(int) 
        8: ================== 
        9: DONE 
       10: ThreadSanitizer: reported 1 warnings 
>>>>>>

--


```

https://github.com/llvm/llvm-project/pull/100653