[clang] [CIR] Upstream support for accessing structure members (PR #136383)

[LLVM Continuous Integration via cfe-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-aarch64-linux-bootstrap-msan` running on `sanitizer-buildbot10` while building `clang` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/94/builds/6457

<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)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/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: 84890 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 
FAIL: LLVM :: tools/llvm-reduce/flaky-interestingness.ll (78042 of 84890)
******************** TEST 'LLVM :: tools/llvm-reduce/flaky-interestingness.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
rm -f /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/test/tools/llvm-reduce/Output/flaky-interestingness.ll.tmp # RUN: at line 2
+ rm -f /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/test/tools/llvm-reduce/Output/flaky-interestingness.ll.tmp
llvm-reduce -j=1 --delta-passes=instructions --test "/usr/bin/python3" --test-arg /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/llvm-reduce/Inputs/flaky-test.py --test-arg /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/test/tools/llvm-reduce/Output/flaky-interestingness.ll.tmp /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll -o /dev/null 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll # RUN: at line 3
+ /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll
+ llvm-reduce -j=1 --delta-passes=instructions --test /usr/bin/python3 --test-arg /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/llvm-reduce/Inputs/flaky-test.py --test-arg /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/test/tools/llvm-reduce/Output/flaky-interestingness.ll.tmp /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll -o /dev/null
/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll:9:10: error: CHECK: expected string not found in input
; CHECK: warning: input module no longer interesting after counting chunks
         ^
<stdin>:1:1: note: scanning from here
*** Reducing Instructions (instructions)...
^
<stdin>:2:21: note: possible intended match here
llvm-reduce: error: running interesting-ness test: Segmentation fault
                    ^

Input file: <stdin>
Check file: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll

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

Input was:
<<<<<<
           1: *** Reducing Instructions (instructions)... 
check:9'0     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
           2: llvm-reduce: error: running interesting-ness test: Segmentation fault 
check:9'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
check:9'1                         ?                                                  possible intended match
>>>>>>

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Step 14 (stage3/msan check) failure: stage3/msan check (failure)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/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: 84890 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 
FAIL: LLVM :: tools/llvm-reduce/flaky-interestingness.ll (78042 of 84890)
******************** TEST 'LLVM :: tools/llvm-reduce/flaky-interestingness.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
rm -f /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/test/tools/llvm-reduce/Output/flaky-interestingness.ll.tmp # RUN: at line 2
+ rm -f /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/test/tools/llvm-reduce/Output/flaky-interestingness.ll.tmp
llvm-reduce -j=1 --delta-passes=instructions --test "/usr/bin/python3" --test-arg /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/llvm-reduce/Inputs/flaky-test.py --test-arg /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/test/tools/llvm-reduce/Output/flaky-interestingness.ll.tmp /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll -o /dev/null 2>&1 | /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll # RUN: at line 3
+ /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/bin/FileCheck /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll
+ llvm-reduce -j=1 --delta-passes=instructions --test /usr/bin/python3 --test-arg /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/llvm-reduce/Inputs/flaky-test.py --test-arg /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build2_msan/test/tools/llvm-reduce/Output/flaky-interestingness.ll.tmp /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll -o /dev/null
/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll:9:10: error: CHECK: expected string not found in input
; CHECK: warning: input module no longer interesting after counting chunks
         ^
<stdin>:1:1: note: scanning from here
*** Reducing Instructions (instructions)...
^
<stdin>:2:21: note: possible intended match here
llvm-reduce: error: running interesting-ness test: Segmentation fault
                    ^

Input file: <stdin>
Check file: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/test/tools/llvm-reduce/flaky-interestingness.ll

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

Input was:
<<<<<<
           1: *** Reducing Instructions (instructions)... 
check:9'0     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
           2: llvm-reduce: error: running interesting-ness test: Segmentation fault 
check:9'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
check:9'1                         ?                                                  possible intended match
>>>>>>

--

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

```

</details>

https://github.com/llvm/llvm-project/pull/136383