[clang] [clang][bytecode] Check for errors in CXXDeleteExprs (PR #185189)

Sat Mar 7 23:32:30 PST 2026

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-s390x-linux` running on `systemz-1` while building `clang` at step 5 "ninja check 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/42/builds/8147

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

```
Step 5 (ninja check 1) failure: stage 1 checked (failure)
******************** TEST 'libFuzzer-s390x-default-Linux :: fuzzer-timeout.test' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
/home/uweigand/sandbox/buildbot/clang-s390x-linux/stage1/./bin/clang    -Wthread-safety -Wthread-safety-reference -Wthread-safety-beta   --driver-mode=g++ -O2 -gline-tables-only -fsanitize=address,fuzzer -I/home/uweigand/sandbox/buildbot/clang-s390x-linux/llvm/compiler-rt/lib/fuzzer  /home/uweigand/sandbox/buildbot/clang-s390x-linux/llvm/compiler-rt/test/fuzzer/TimeoutTest.cpp -o /home/uweigand/sandbox/buildbot/clang-s390x-linux/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutTest # RUN: at line 1
+ /home/uweigand/sandbox/buildbot/clang-s390x-linux/stage1/./bin/clang -Wthread-safety -Wthread-safety-reference -Wthread-safety-beta --driver-mode=g++ -O2 -gline-tables-only -fsanitize=address,fuzzer -I/home/uweigand/sandbox/buildbot/clang-s390x-linux/llvm/compiler-rt/lib/fuzzer /home/uweigand/sandbox/buildbot/clang-s390x-linux/llvm/compiler-rt/test/fuzzer/TimeoutTest.cpp -o /home/uweigand/sandbox/buildbot/clang-s390x-linux/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutTest
/home/uweigand/sandbox/buildbot/clang-s390x-linux/stage1/./bin/clang    -Wthread-safety -Wthread-safety-reference -Wthread-safety-beta   --driver-mode=g++ -O2 -gline-tables-only -fsanitize=address,fuzzer -I/home/uweigand/sandbox/buildbot/clang-s390x-linux/llvm/compiler-rt/lib/fuzzer  /home/uweigand/sandbox/buildbot/clang-s390x-linux/llvm/compiler-rt/test/fuzzer/TimeoutEmptyTest.cpp -o /home/uweigand/sandbox/buildbot/clang-s390x-linux/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutEmptyTest # RUN: at line 2
+ /home/uweigand/sandbox/buildbot/clang-s390x-linux/stage1/./bin/clang -Wthread-safety -Wthread-safety-reference -Wthread-safety-beta --driver-mode=g++ -O2 -gline-tables-only -fsanitize=address,fuzzer -I/home/uweigand/sandbox/buildbot/clang-s390x-linux/llvm/compiler-rt/lib/fuzzer /home/uweigand/sandbox/buildbot/clang-s390x-linux/llvm/compiler-rt/test/fuzzer/TimeoutEmptyTest.cpp -o /home/uweigand/sandbox/buildbot/clang-s390x-linux/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutEmptyTest
not  /home/uweigand/sandbox/buildbot/clang-s390x-linux/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutTest -timeout=1 2>&1 | FileCheck /home/uweigand/sandbox/buildbot/clang-s390x-linux/llvm/compiler-rt/test/fuzzer/fuzzer-timeout.test --check-prefix=TimeoutTest # RUN: at line 3
+ not /home/uweigand/sandbox/buildbot/clang-s390x-linux/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutTest -timeout=1
+ FileCheck /home/uweigand/sandbox/buildbot/clang-s390x-linux/llvm/compiler-rt/test/fuzzer/fuzzer-timeout.test --check-prefix=TimeoutTest
not  /home/uweigand/sandbox/buildbot/clang-s390x-linux/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutTest -timeout=1 /home/uweigand/sandbox/buildbot/clang-s390x-linux/llvm/compiler-rt/test/fuzzer/hi.txt 2>&1 | FileCheck /home/uweigand/sandbox/buildbot/clang-s390x-linux/llvm/compiler-rt/test/fuzzer/fuzzer-timeout.test --check-prefix=SingleInputTimeoutTest # RUN: at line 12
+ FileCheck /home/uweigand/sandbox/buildbot/clang-s390x-linux/llvm/compiler-rt/test/fuzzer/fuzzer-timeout.test --check-prefix=SingleInputTimeoutTest
+ not /home/uweigand/sandbox/buildbot/clang-s390x-linux/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutTest -timeout=1 /home/uweigand/sandbox/buildbot/clang-s390x-linux/llvm/compiler-rt/test/fuzzer/hi.txt
/home/uweigand/sandbox/buildbot/clang-s390x-linux/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutTest -timeout=1 -timeout_exitcode=0 # RUN: at line 16
+ /home/uweigand/sandbox/buildbot/clang-s390x-linux/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutTest -timeout=1 -timeout_exitcode=0
INFO: Running with entropic power schedule (0xFF, 100).
INFO: Seed: 988705340
INFO: Loaded 1 modules   (13 inline 8-bit counters): 13 [0x2aa35c52e78, 0x2aa35c52e85), 
INFO: Loaded 1 PC tables (13 PCs): 13 [0x2aa35c52e88,0x2aa35c52f58), 
INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes
INFO: A corpus is not provided, starting from an empty corpus
#2	INITED cov: 2 ft: 2 corp: 1/1b exec/s: 0 rss: 31Mb
#1089	NEW    cov: 3 ft: 3 corp: 2/2b lim: 14 exec/s: 0 rss: 32Mb L: 1/1 MS: 2 ChangeBit-ChangeBit-
#1119	NEW    cov: 4 ft: 4 corp: 3/4b lim: 14 exec/s: 0 rss: 32Mb L: 2/2 MS: 5 InsertRepeatedBytes-EraseBytes-ShuffleBytes-EraseBytes-CrossOver-
#34755	NEW    cov: 5 ft: 5 corp: 4/117b lim: 341 exec/s: 0 rss: 34Mb L: 113/113 MS: 1 InsertRepeatedBytes-
#34765	REDUCE cov: 5 ft: 5 corp: 4/45b lim: 341 exec/s: 0 rss: 34Mb L: 41/41 MS: 5 InsertRepeatedBytes-ChangeBinInt-CMP-ChangeByte-CrossOver- DE: "\001\000\000\000\000\000\000\000"-
#34783	REDUCE cov: 5 ft: 5 corp: 4/35b lim: 341 exec/s: 0 rss: 34Mb L: 31/31 MS: 3 InsertRepeatedBytes-ChangeBinInt-EraseBytes-
#34791	REDUCE cov: 5 ft: 5 corp: 4/22b lim: 341 exec/s: 0 rss: 34Mb L: 18/18 MS: 3 InsertByte-ChangeByte-EraseBytes-
#34912	REDUCE cov: 5 ft: 5 corp: 4/19b lim: 341 exec/s: 0 rss: 34Mb L: 15/15 MS: 1 EraseBytes-
#34946	REDUCE cov: 5 ft: 5 corp: 4/17b lim: 341 exec/s: 0 rss: 34Mb L: 13/13 MS: 4 ShuffleBytes-CMP-ChangeBit-EraseBytes- DE: "\000\001"-
#35077	REDUCE cov: 5 ft: 5 corp: 4/13b lim: 341 exec/s: 0 rss: 34Mb L: 9/9 MS: 1 EraseBytes-
#35149	REDUCE cov: 5 ft: 5 corp: 4/10b lim: 341 exec/s: 0 rss: 34Mb L: 6/6 MS: 2 ShuffleBytes-EraseBytes-
#35257	REDUCE cov: 5 ft: 5 corp: 4/8b lim: 341 exec/s: 0 rss: 34Mb L: 4/4 MS: 3 ChangeBit-ShuffleBytes-EraseBytes-
#35583	REDUCE cov: 6 ft: 6 corp: 5/10b lim: 341 exec/s: 0 rss: 34Mb L: 2/4 MS: 1 EraseBytes-
#35629	REDUCE cov: 6 ft: 6 corp: 5/9b lim: 341 exec/s: 0 rss: 34Mb L: 3/3 MS: 1 EraseBytes-
ALARM: working on the last Unit for 1 seconds
       and the timeout value is 1 (use -timeout=N to change)
MS: 1 InsertByte-; base unit: c74064c97231114b678d2204fde8965f65080db6
0x48,0x69,0x21,0x69,
Hi!i
artifact_prefix='./'; Test unit written to ./timeout-c07078879f59203eeb77b1e2390b60cde5634ce6
Base64: SGkhaQ==
==1984312== ERROR: libFuzzer: timeout after 1 seconds
AddressSanitizer:DEADLYSIGNAL
=================================================================
AddressSanitizer:DEADLYSIGNAL
=================================================================
AddressSanitizer: CHECK failed: asan_report.cpp:227 "((current_error_.kind)) == ((kErrorKindInvalid))" (0x1, 0x0) (tid=1984312)
...

```

</details>

https://github.com/llvm/llvm-project/pull/185189