[llvm] [SCEV] Split collecting and applying rewrite info from loop guards (NFC) (PR #97316)

[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/920

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)
...
llvm-lit: /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', '--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', '--target=x86_64-unknown-linux-gnu', '-Wthread-safety', '-Wthread-safety-reference', '-Wthread-safety-beta', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', '--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', '--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', '--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', '--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-x86_64-linux/build/llvm-project/llvm/utils/lit/lit/main.py:72: 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: 9980 tests, 80 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
TIMEOUT: SanitizerCommon-hwasan-x86_64-Linux :: Posix/fork_threaded.c (9980 of 9980)
******************** TEST 'SanitizerCommon-hwasan-x86_64-Linux :: Posix/fork_threaded.c' FAILED ********************
Exit Code: -9
Timeout: Reached timeout of 900 seconds

Command Output (stderr):
--
RUN: at line 1: /b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang  -gline-tables-only -fsanitize=hwaddress -fuse-ld=lld -fsanitize-hwaddress-experimental-aliasing  -m64 -funwind-tables  -I/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test -ldl -O0 /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Posix/fork_threaded.c -o /b/sanitizer-x86_64-linux/build/build_symbolizer/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/hwasan-x86_64-Linux/Posix/Output/fork_threaded.c.tmp && env HWASAN_OPTIONS=die_after_fork=0  /b/sanitizer-x86_64-linux/build/build_symbolizer/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/hwasan-x86_64-Linux/Posix/Output/fork_threaded.c.tmp
+ /b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang -gline-tables-only -fsanitize=hwaddress -fuse-ld=lld -fsanitize-hwaddress-experimental-aliasing -m64 -funwind-tables -I/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test -ldl -O0 /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Posix/fork_threaded.c -o /b/sanitizer-x86_64-linux/build/build_symbolizer/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/hwasan-x86_64-Linux/Posix/Output/fork_threaded.c.tmp
+ env HWASAN_OPTIONS=die_after_fork=0 /b/sanitizer-x86_64-linux/build/build_symbolizer/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/hwasan-x86_64-Linux/Posix/Output/fork_threaded.c.tmp
==3509592==ERROR: HWAddressSanitizer: tag-mismatch on address 0x681400000280 at pc 0x561e4a79efe7

=================================================================
==3510071==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 568 byte(s) in 3 object(s) allocated from:
    #0 0x561e4a793728 in malloc /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/lib/hwasan/hwasan_allocation_functions.cpp:151:3
    #1 0x561e4a8e972e in operator new(unsigned long) llvm-link

Direct leak of 204 byte(s) in 1 object(s) allocated from:
    #0 0x561e4a79326d in calloc /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/lib/hwasan/hwasan_allocation_functions.cpp:127:3
    #1 0x561e4a87247b in llvm::safe_calloc(unsigned long, unsigned long) llvm-link

SUMMARY: HWAddressSanitizer: 772 byte(s) leaked in 4 allocation(s).
READ of size 158 at 0x681400000280 tags: 01/00 (ptr/mem) in thread T1

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 

64 warning(s) in tests
Slowest Tests:
--------------------------------------------------------------------------
900.03s: SanitizerCommon-hwasan-x86_64-Linux :: Posix/fork_threaded.c
186.65s: libFuzzer-x86_64-static-libcxx-Linux :: fuzzer-leak.test
184.64s: libFuzzer-i386-static-libcxx-Linux :: fuzzer-leak.test
184.59s: libFuzzer-x86_64-libcxx-Linux :: fuzzer-leak.test
184.48s: libFuzzer-x86_64-default-Linux :: fuzzer-leak.test
184.47s: libFuzzer-i386-libcxx-Linux :: fuzzer-leak.test
Step 11 (test compiler-rt symbolizer) failure: test compiler-rt symbolizer (failure)
...
llvm-lit: /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', '--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', '--target=x86_64-unknown-linux-gnu', '-Wthread-safety', '-Wthread-safety-reference', '-Wthread-safety-beta', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', '--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', '--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', '--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-x86_64-linux/build/build_symbolizer/lib/clang/19/lib/x86_64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang', '--target=x86_64-unknown-linux-gnu', '-m64', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-x86_64-linux/build/llvm-project/llvm/utils/lit/lit/main.py:72: 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: 9980 tests, 80 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
TIMEOUT: SanitizerCommon-hwasan-x86_64-Linux :: Posix/fork_threaded.c (9980 of 9980)
******************** TEST 'SanitizerCommon-hwasan-x86_64-Linux :: Posix/fork_threaded.c' FAILED ********************
Exit Code: -9
Timeout: Reached timeout of 900 seconds

Command Output (stderr):
--
RUN: at line 1: /b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang  -gline-tables-only -fsanitize=hwaddress -fuse-ld=lld -fsanitize-hwaddress-experimental-aliasing  -m64 -funwind-tables  -I/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test -ldl -O0 /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Posix/fork_threaded.c -o /b/sanitizer-x86_64-linux/build/build_symbolizer/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/hwasan-x86_64-Linux/Posix/Output/fork_threaded.c.tmp && env HWASAN_OPTIONS=die_after_fork=0  /b/sanitizer-x86_64-linux/build/build_symbolizer/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/hwasan-x86_64-Linux/Posix/Output/fork_threaded.c.tmp
+ /b/sanitizer-x86_64-linux/build/build_symbolizer/./bin/clang -gline-tables-only -fsanitize=hwaddress -fuse-ld=lld -fsanitize-hwaddress-experimental-aliasing -m64 -funwind-tables -I/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test -ldl -O0 /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Posix/fork_threaded.c -o /b/sanitizer-x86_64-linux/build/build_symbolizer/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/hwasan-x86_64-Linux/Posix/Output/fork_threaded.c.tmp
+ env HWASAN_OPTIONS=die_after_fork=0 /b/sanitizer-x86_64-linux/build/build_symbolizer/runtimes/runtimes-bins/compiler-rt/test/sanitizer_common/hwasan-x86_64-Linux/Posix/Output/fork_threaded.c.tmp
==3509592==ERROR: HWAddressSanitizer: tag-mismatch on address 0x681400000280 at pc 0x561e4a79efe7

=================================================================
==3510071==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 568 byte(s) in 3 object(s) allocated from:
    #0 0x561e4a793728 in malloc /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/lib/hwasan/hwasan_allocation_functions.cpp:151:3
    #1 0x561e4a8e972e in operator new(unsigned long) llvm-link

Direct leak of 204 byte(s) in 1 object(s) allocated from:
    #0 0x561e4a79326d in calloc /b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/lib/hwasan/hwasan_allocation_functions.cpp:127:3
    #1 0x561e4a87247b in llvm::safe_calloc(unsigned long, unsigned long) llvm-link

SUMMARY: HWAddressSanitizer: 772 byte(s) leaked in 4 allocation(s).
READ of size 158 at 0x681400000280 tags: 01/00 (ptr/mem) in thread T1

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..

64 warning(s) in tests
Slowest Tests:
--------------------------------------------------------------------------
900.03s: SanitizerCommon-hwasan-x86_64-Linux :: Posix/fork_threaded.c
186.65s: libFuzzer-x86_64-static-libcxx-Linux :: fuzzer-leak.test
184.64s: libFuzzer-i386-static-libcxx-Linux :: fuzzer-leak.test
184.59s: libFuzzer-x86_64-libcxx-Linux :: fuzzer-leak.test
184.48s: libFuzzer-x86_64-default-Linux :: fuzzer-leak.test
184.47s: libFuzzer-i386-libcxx-Linux :: fuzzer-leak.test

```

https://github.com/llvm/llvm-project/pull/97316