[llvm] [Hexagon] Add coverage tests for CodeGen analysis and optimization passes (PR #183952)

Mon Mar 30 13:55:48 PDT 2026

llvm-ci wrote:

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

Full details are available at: https://lab.llvm.org/buildbot/#/builders/94/builds/16554

<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:569: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/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: 96377 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
FAIL: lld :: MachO/x86-64-objc-stubs.s (96253 of 96377)
******************** TEST 'lld :: MachO/x86-64-objc-stubs.s' FAILED ********************
Exit Code: -6

Command Output (stdout):
--
# RUN: at line 3
/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/llvm-mc -filetype=obj -triple=x86_64-apple-darwin /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/lld/test/MachO/x86-64-objc-stubs.s -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/x86-64-objc-stubs.s.tmp.o
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/llvm-mc -filetype=obj -triple=x86_64-apple-darwin /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/lld/test/MachO/x86-64-objc-stubs.s -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/x86-64-objc-stubs.s.tmp.o
# note: command had no output on stdout or stderr
# RUN: at line 4
ld64.lld -arch x86_64 -platform_version macos 11.0 11.0 -syslibroot /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/lld/test/MachO/Inputs/MacOSX.sdk -lSystem -fatal_warnings -arch x86_64 -lSystem -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/x86-64-objc-stubs.s.tmp.out /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/x86-64-objc-stubs.s.tmp.o
# executed command: ld64.lld -arch x86_64 -platform_version macos 11.0 11.0 -syslibroot /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/lld/test/MachO/Inputs/MacOSX.sdk -lSystem -fatal_warnings -arch x86_64 -lSystem -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/x86-64-objc-stubs.s.tmp.out /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/x86-64-objc-stubs.s.tmp.o
# .---command stderr------------
# | PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and instructions to reproduce the bug.
# |  #0 0x0000ae1b509c430c ___interceptor_backtrace /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/../sanitizer_common/sanitizer_common_interceptors.inc:4556:13
# |  #1 0x0000ae1b50bdb908 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/lib/Support/Unix/Signals.inc:884:7
# |  #2 0x0000ae1b50bd4818 llvm::sys::RunSignalHandlers() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/lib/Support/Signals.cpp:109:18
# |  #3 0x0000ae1b50bdd620 SignalHandler(int, siginfo_t*, void*) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/lib/Support/Unix/Signals.inc:448:38
# |  #4 0x0000ae1b509f630c IsInInterceptorScope /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_interceptors.cpp:78:10
# |  #5 0x0000ae1b509f630c SignalAction(int, void*, void*) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_interceptors.cpp:1167:3
# |  #6 0x0000f000280ae9c0 (linux-vdso.so.1+0x9c0)
# |  #7 0x0000f00027ad7240 (/lib/aarch64-linux-gnu/libc.so.6+0xa7240)
# |  #8 0x0000ae1b50a03a2c __msan::SetShadow(void const*, unsigned long, unsigned char) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_poisoning.cpp:217:12
# |  #9 0x0000ae1b50a02c98 __msan::MsanThread::ClearShadowForThreadStackAndTLS() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_thread.cpp:31:7
# | #10 0x0000ae1b50a02de4 malloc_storage /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_thread.h:45:59
# | #11 0x0000ae1b50a02de4 __msan::MsanThread::Init() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_thread.cpp:45:3
# | #12 0x0000ae1b509a8ec8 MsanThreadStartFunc(void*) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_interceptors.cpp:1186:22
# | #13 0x0000f00027ab861c (/lib/aarch64-linux-gnu/libc.so.6+0x8861c)
# | #14 0x0000f00027b22a8c (/lib/aarch64-linux-gnu/libc.so.6+0xf2a8c)
# | MemorySanitizer:DEADLYSIGNAL
# | /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build0/bin/llvm-symbolizer: error: 'linux-vdso.so.1': No such file or directory
# `-----------------------------
# error: command failed with exit status: -6

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Step 11 (stage2/msan check) failure: stage2/msan check (failure)
...
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/ld.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using lld-link: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/lld-link
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using ld64.lld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:569: note: using wasm-ld: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/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: 96377 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
FAIL: lld :: MachO/x86-64-objc-stubs.s (96253 of 96377)
******************** TEST 'lld :: MachO/x86-64-objc-stubs.s' FAILED ********************
Exit Code: -6

Command Output (stdout):
--
# RUN: at line 3
/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/llvm-mc -filetype=obj -triple=x86_64-apple-darwin /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/lld/test/MachO/x86-64-objc-stubs.s -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/x86-64-objc-stubs.s.tmp.o
# executed command: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/llvm-mc -filetype=obj -triple=x86_64-apple-darwin /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/lld/test/MachO/x86-64-objc-stubs.s -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/x86-64-objc-stubs.s.tmp.o
# note: command had no output on stdout or stderr
# RUN: at line 4
ld64.lld -arch x86_64 -platform_version macos 11.0 11.0 -syslibroot /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/lld/test/MachO/Inputs/MacOSX.sdk -lSystem -fatal_warnings -arch x86_64 -lSystem -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/x86-64-objc-stubs.s.tmp.out /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/x86-64-objc-stubs.s.tmp.o
# executed command: ld64.lld -arch x86_64 -platform_version macos 11.0 11.0 -syslibroot /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/lld/test/MachO/Inputs/MacOSX.sdk -lSystem -fatal_warnings -arch x86_64 -lSystem -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/x86-64-objc-stubs.s.tmp.out /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/x86-64-objc-stubs.s.tmp.o
# .---command stderr------------
# | PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and instructions to reproduce the bug.
# |  #0 0x0000ae1b509c430c ___interceptor_backtrace /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/../sanitizer_common/sanitizer_common_interceptors.inc:4556:13
# |  #1 0x0000ae1b50bdb908 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/lib/Support/Unix/Signals.inc:884:7
# |  #2 0x0000ae1b50bd4818 llvm::sys::RunSignalHandlers() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/lib/Support/Signals.cpp:109:18
# |  #3 0x0000ae1b50bdd620 SignalHandler(int, siginfo_t*, void*) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/lib/Support/Unix/Signals.inc:448:38
# |  #4 0x0000ae1b509f630c IsInInterceptorScope /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_interceptors.cpp:78:10
# |  #5 0x0000ae1b509f630c SignalAction(int, void*, void*) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_interceptors.cpp:1167:3
# |  #6 0x0000f000280ae9c0 (linux-vdso.so.1+0x9c0)
# |  #7 0x0000f00027ad7240 (/lib/aarch64-linux-gnu/libc.so.6+0xa7240)
# |  #8 0x0000ae1b50a03a2c __msan::SetShadow(void const*, unsigned long, unsigned char) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_poisoning.cpp:217:12
# |  #9 0x0000ae1b50a02c98 __msan::MsanThread::ClearShadowForThreadStackAndTLS() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_thread.cpp:31:7
# | #10 0x0000ae1b50a02de4 malloc_storage /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_thread.h:45:59
# | #11 0x0000ae1b50a02de4 __msan::MsanThread::Init() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_thread.cpp:45:3
# | #12 0x0000ae1b509a8ec8 MsanThreadStartFunc(void*) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_interceptors.cpp:1186:22
# | #13 0x0000f00027ab861c (/lib/aarch64-linux-gnu/libc.so.6+0x8861c)
# | #14 0x0000f00027b22a8c (/lib/aarch64-linux-gnu/libc.so.6+0xf2a8c)
# | MemorySanitizer:DEADLYSIGNAL
# | /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build0/bin/llvm-symbolizer: error: 'linux-vdso.so.1': No such file or directory
# `-----------------------------
# error: command failed with exit status: -6

--

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

```

</details>

https://github.com/llvm/llvm-project/pull/183952