[clang] [clang-tools-extra] [llvm] [MTE] Apply alignment / size in AsmPrinter rather than IR (PR #111918)

LLVM Continuous Integration via llvm-commits llvm-commits at lists.llvm.org
Tue Dec 17 06:03:46 PST 2024 

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-s390x-linux-lnt` running on `systemz-1` while building `clang,llvm` at step 7 "ninja check 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/136/builds/2026

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

```
Step 7 (ninja check 1) failure: stage 1 checked (failure)
******************** TEST 'libFuzzer-s390x-default-Linux :: fuzzer-timeout.test' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 1: /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/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-lnt/llvm/compiler-rt/lib/fuzzer  /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/test/fuzzer/TimeoutTest.cpp -o /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutTest
+ /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/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-lnt/llvm/compiler-rt/lib/fuzzer /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/test/fuzzer/TimeoutTest.cpp -o /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutTest
RUN: at line 2: /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/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-lnt/llvm/compiler-rt/lib/fuzzer  /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/test/fuzzer/TimeoutEmptyTest.cpp -o /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutEmptyTest
+ /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/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-lnt/llvm/compiler-rt/lib/fuzzer /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/test/fuzzer/TimeoutEmptyTest.cpp -o /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutEmptyTest
RUN: at line 3: not  /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/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-lnt/llvm/compiler-rt/test/fuzzer/fuzzer-timeout.test --check-prefix=TimeoutTest
+ not /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/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-lnt/llvm/compiler-rt/test/fuzzer/fuzzer-timeout.test --check-prefix=TimeoutTest
RUN: at line 12: not  /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutTest -timeout=1 /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/test/fuzzer/hi.txt 2>&1 | FileCheck /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/test/fuzzer/fuzzer-timeout.test --check-prefix=SingleInputTimeoutTest
+ not /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutTest -timeout=1 /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/test/fuzzer/hi.txt
+ FileCheck /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/test/fuzzer/fuzzer-timeout.test --check-prefix=SingleInputTimeoutTest
RUN: at line 16: /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/stage1/runtimes/runtimes-bins/compiler-rt/test/fuzzer/S390XDefaultLinuxConfig/Output/fuzzer-timeout.test.tmp-TimeoutTest -timeout=1 -timeout_exitcode=0
+ /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/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: 1711398879
INFO: Loaded 1 modules   (13 inline 8-bit counters): 13 [0x2aa18cd0e70, 0x2aa18cd0e7d), 
INFO: Loaded 1 PC tables (13 PCs): 13 [0x2aa18cd0e80,0x2aa18cd0f50), 
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
#134	NEW    cov: 3 ft: 3 corp: 2/4b lim: 4 exec/s: 0 rss: 31Mb L: 3/3 MS: 2 CopyPart-InsertByte-
#159	REDUCE cov: 3 ft: 3 corp: 2/3b lim: 4 exec/s: 0 rss: 32Mb L: 2/2 MS: 5 CopyPart-CopyPart-CopyPart-CrossOver-CrossOver-
#230	REDUCE cov: 4 ft: 4 corp: 3/4b lim: 4 exec/s: 0 rss: 32Mb L: 1/2 MS: 1 EraseBytes-
#2210	NEW    cov: 5 ft: 5 corp: 4/7b lim: 21 exec/s: 0 rss: 32Mb L: 3/3 MS: 5 ShuffleBytes-ShuffleBytes-CopyPart-CopyPart-ChangeByte-
#2507	NEW    cov: 6 ft: 6 corp: 5/9b lim: 21 exec/s: 0 rss: 32Mb L: 2/3 MS: 2 InsertByte-CrossOver-
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: bf397014ecbce0b1be8d9011c77f6181927a357f
0x48,0x69,0x21,0x48,
Hi!H
artifact_prefix='./'; Test unit written to ./timeout-c9f7ef19d5ac7565f3dcaf7a3221ae711a187db5
Base64: SGkhSA==
==2561430== ERROR: libFuzzer: timeout after 1 seconds
/home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/stage1/./bin/llvm-symbolizer: error: 'linux-vdso64.so.1': No such file or directory
    #0 0x02aa18c49215 in __sanitizer_print_stack_trace /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/lib/asan/asan_stack.cpp:87:3
    #1 0x02aa18b78507 in fuzzer::PrintStackTrace() /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/lib/fuzzer/FuzzerUtil.cpp:210:5
    #2 0x02aa18b534c5 in fuzzer::Fuzzer::AlarmCallback() /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:304:5
    #3 0x03ffa3cfe47f  (linux-vdso64.so.1+0x47f) (BuildId: fe1a17fa990b2bd35ffa9881eecf3133964c4a96)
    #4 0x02aa18b75e5d in HandleCmp<unsigned int> /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/lib/fuzzer/FuzzerTracePC.cpp:384:26
    #5 0x02aa18b75e5d in __sanitizer_cov_trace_const_cmp4 /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/lib/fuzzer/FuzzerTracePC.cpp:513:15
    #6 0x02aa18c8d9a1 in LLVMFuzzerTestOneInput /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/test/fuzzer/TimeoutTest.cpp:20:16
    #7 0x02aa18b55fa5 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:619:13
    #8 0x02aa18b546c5 in fuzzer::Fuzzer::RunOne(unsigned char const*, unsigned long, bool, fuzzer::InputInfo*, bool, bool*) /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:516:7
    #9 0x02aa18b573ab in fuzzer::Fuzzer::MutateAndTestOne() /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:765:19
    #10 0x02aa18b584a7 in fuzzer::Fuzzer::Loop(std::vector<fuzzer::SizedFile, std::allocator<fuzzer::SizedFile>>&) /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:910:5
    #11 0x02aa18b3dddd in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/llvm/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:915:6
...

```

</details>

https://github.com/llvm/llvm-project/pull/111918

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