[clang] [CIR] Handle globals with vptr init (PR #191291)

Fri Apr 10 12:19:33 PDT 2026

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-x86_64-linux` running on `sanitizer-buildbot1` while building `clang` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/66/builds/29220

<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)
...
[230/236] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64-with-call.o
[231/236] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64.o
[232/236] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64-with-call.o
[233/236] Generating Msan-x86_64-with-call-Test
[234/236] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64.o
[235/236] Generating Msan-x86_64-Test
[235/236] 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: 6219 tests, 64 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80
FAIL: SanitizerCommon-lsan-x86_64-Linux :: Linux/soft_rss_limit_mb_test.cpp (5163 of 6219)
******************** TEST 'SanitizerCommon-lsan-x86_64-Linux :: Linux/soft_rss_limit_mb_test.cpp' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
/home/b/sanitizer-x86_64-linux/build/build_default/bin/clang  --driver-mode=g++ -gline-tables-only -fsanitize=leak  -m64 -funwind-tables -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/23/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  -I/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test -ldl -O2 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -o /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/sanitizer_common/lsan-x86_64-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/bin/clang --driver-mode=g++ -gline-tables-only -fsanitize=leak -m64 -funwind-tables -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/23/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 -I/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test -ldl -O2 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -o /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/sanitizer_common/lsan-x86_64-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp
# note: command had no output on stdout or stderr
# RUN: at line 5
env LSAN_OPTIONS=soft_rss_limit_mb=420:quarantine_size=1:allocator_may_return_null=1      /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/sanitizer_common/lsan-x86_64-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp 2>&1 | FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -check-prefix=CHECK_MAY_RETURN_1
# executed command: env LSAN_OPTIONS=soft_rss_limit_mb=420:quarantine_size=1:allocator_may_return_null=1 /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/sanitizer_common/lsan-x86_64-Linux/Linux/Output/soft_rss_limit_mb_test.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/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -check-prefix=CHECK_MAY_RETURN_1
# note: command had no output on stdout or stderr
# RUN: at line 6
env LSAN_OPTIONS=soft_rss_limit_mb=420:quarantine_size=1:allocator_may_return_null=0 not  /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/sanitizer_common/lsan-x86_64-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp 2>&1 | FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -check-prefix=CHECK_MAY_RETURN_0 --implicit-check-not="returned null"
# executed command: env LSAN_OPTIONS=soft_rss_limit_mb=420:quarantine_size=1:allocator_may_return_null=0 not /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/sanitizer_common/lsan-x86_64-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp
# note: command had no output on stdout or stderr
# error: command failed with exit status: 1
# executed command: FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -check-prefix=CHECK_MAY_RETURN_0 '--implicit-check-not=returned null'
# .---command stderr------------
# | /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp:73:24: error: CHECK_MAY_RETURN_0: expected string not found in input
# | // CHECK_MAY_RETURN_0: {{SUMMARY: .*Sanitizer: rss-limit-exceeded}}
# |                        ^
# | <stdin>:10:44: note: scanning from here
# | Some of the malloc calls returned non-null: 32
# |                                            ^
# | <stdin>:51:11: note: possible intended match here
# | ==2257347==LeakSanitizer: soft rss limit exhausted (420Mb vs 475Mb)
# |           ^
# | 
# | Input file: <stdin>
# | Check file: /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
Step 16 (test standalone compiler-rt) failure: test standalone compiler-rt (failure)
...
[230/236] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64-with-call.o
[231/236] Generating MSAN_INST_GTEST.gtest-all.cc.x86_64.o
[232/236] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64-with-call.o
[233/236] Generating Msan-x86_64-with-call-Test
[234/236] Generating MSAN_INST_TEST_OBJECTS.msan_test.cpp.x86_64.o
[235/236] Generating Msan-x86_64-Test
[235/236] 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: 6219 tests, 64 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80
FAIL: SanitizerCommon-lsan-x86_64-Linux :: Linux/soft_rss_limit_mb_test.cpp (5163 of 6219)
******************** TEST 'SanitizerCommon-lsan-x86_64-Linux :: Linux/soft_rss_limit_mb_test.cpp' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
/home/b/sanitizer-x86_64-linux/build/build_default/bin/clang  --driver-mode=g++ -gline-tables-only -fsanitize=leak  -m64 -funwind-tables -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/23/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  -I/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test -ldl -O2 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -o /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/sanitizer_common/lsan-x86_64-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp
# executed command: /home/b/sanitizer-x86_64-linux/build/build_default/bin/clang --driver-mode=g++ -gline-tables-only -fsanitize=leak -m64 -funwind-tables -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/23/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 -I/home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test -ldl -O2 /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -o /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/sanitizer_common/lsan-x86_64-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp
# note: command had no output on stdout or stderr
# RUN: at line 5
env LSAN_OPTIONS=soft_rss_limit_mb=420:quarantine_size=1:allocator_may_return_null=1      /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/sanitizer_common/lsan-x86_64-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp 2>&1 | FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -check-prefix=CHECK_MAY_RETURN_1
# executed command: env LSAN_OPTIONS=soft_rss_limit_mb=420:quarantine_size=1:allocator_may_return_null=1 /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/sanitizer_common/lsan-x86_64-Linux/Linux/Output/soft_rss_limit_mb_test.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/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -check-prefix=CHECK_MAY_RETURN_1
# note: command had no output on stdout or stderr
# RUN: at line 6
env LSAN_OPTIONS=soft_rss_limit_mb=420:quarantine_size=1:allocator_may_return_null=0 not  /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/sanitizer_common/lsan-x86_64-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp 2>&1 | FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -check-prefix=CHECK_MAY_RETURN_0 --implicit-check-not="returned null"
# executed command: env LSAN_OPTIONS=soft_rss_limit_mb=420:quarantine_size=1:allocator_may_return_null=0 not /home/b/sanitizer-x86_64-linux/build/compiler_rt_build/test/sanitizer_common/lsan-x86_64-Linux/Linux/Output/soft_rss_limit_mb_test.cpp.tmp
# note: command had no output on stdout or stderr
# error: command failed with exit status: 1
# executed command: FileCheck /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp -check-prefix=CHECK_MAY_RETURN_0 '--implicit-check-not=returned null'
# .---command stderr------------
# | /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp:73:24: error: CHECK_MAY_RETURN_0: expected string not found in input
# | // CHECK_MAY_RETURN_0: {{SUMMARY: .*Sanitizer: rss-limit-exceeded}}
# |                        ^
# | <stdin>:10:44: note: scanning from here
# | Some of the malloc calls returned non-null: 32
# |                                            ^
# | <stdin>:51:11: note: possible intended match here
# | ==2257347==LeakSanitizer: soft rss limit exhausted (420Mb vs 475Mb)
# |           ^
# | 
# | Input file: <stdin>
# | Check file: /home/b/sanitizer-x86_64-linux/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cpp
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:

```

</details>

https://github.com/llvm/llvm-project/pull/191291