[llvm] [DebugInfo][LICM] Fix debug value loss caused by hoisting the cmp instructions (PR #146640)
LLVM Continuous Integration via llvm-commits
llvm-commits at lists.llvm.org
Mon Jul 7 00:11:30 PDT 2025
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/8651
<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_build_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_build_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_build_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_build_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_build_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_build_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_build_msan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/utils/lit/lit/main.py:73: 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: 88618 tests, 72 workers --
Testing: 0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
FAIL: lld :: MachO/icf-undef.s (88233 of 88618)
******************** TEST 'lld :: MachO/icf-undef.s' FAILED ********************
Exit Code: 134
Command Output (stderr):
--
rm -rf /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp; split-file /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/lld/test/MachO/icf-undef.s /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp # RUN: at line 2
+ rm -rf /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp
+ split-file /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/lld/test/MachO/icf-undef.s /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp
/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/llvm-mc -filetype=obj -triple=x86_64-apple-darwin19.0.0 /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test.s -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test.o # RUN: at line 4
+ /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/llvm-mc -filetype=obj -triple=x86_64-apple-darwin19.0.0 /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test.s -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test.o
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 -lSystem -dylib --icf=all -undefined dynamic_lookup -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test.o # RUN: at line 7
+ 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 -lSystem -dylib --icf=all -undefined dynamic_lookup -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test.o
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
#0 0x0000aae141fa3820 ___interceptor_backtrace /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/../sanitizer_common/sanitizer_common_interceptors.inc:4530:13
#1 0x0000aae14219417c llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/lib/Support/Unix/Signals.inc:823:7
#2 0x0000aae14218e3f8 llvm::sys::RunSignalHandlers() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/lib/Support/Signals.cpp:105:18
#3 0x0000aae142195e18 SignalHandler(int, siginfo_t*, void*) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/lib/Support/Unix/Signals.inc:0:3
#4 0x0000aae141fd5990 IsInInterceptorScope /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_interceptors.cpp:78:10
#5 0x0000aae141fd5990 SignalAction(int, void*, void*) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_interceptors.cpp:1167:3
#6 0x0000f00035a658f8 (linux-vdso.so.1+0x8f8)
#7 0x0000f000354e2f5c (/lib/aarch64-linux-gnu/libc.so.6+0xa2f5c)
#8 0x0000aae141fe32a0 __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 0x0000aae141fe24f0 __msan::MsanThread::ClearShadowForThreadStackAndTLS() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_thread.cpp:31:7
#10 0x0000aae141fe2658 malloc_storage /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_thread.h:45:59
#11 0x0000aae141fe2658 __msan::MsanThread::Init() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_thread.cpp:45:3
#12 0x0000aae141f88354 MsanThreadStartFunc(void*) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_interceptors.cpp:1186:22
#13 0x0000f000354c595c (/lib/aarch64-linux-gnu/libc.so.6+0x8595c)
#14 0x0000f0003552ba4c (/lib/aarch64-linux-gnu/libc.so.6+0xeba4c)
MemorySanitizer:DEADLYSIGNAL
/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.script: line 5: 2770857 Aborted 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 -lSystem -dylib --icf=all -undefined dynamic_lookup -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test.o
--
********************
Testing: 0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
Slowest Tests:
--------------------------------------------------------------------------
99.52s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
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:520: 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:520: 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:520: 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:520: 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:520: 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:520: 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:520: 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:73: 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: 88618 tests, 72 workers --
Testing: 0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
FAIL: lld :: MachO/icf-undef.s (88233 of 88618)
******************** TEST 'lld :: MachO/icf-undef.s' FAILED ********************
Exit Code: 134
Command Output (stderr):
--
rm -rf /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp; split-file /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/lld/test/MachO/icf-undef.s /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp # RUN: at line 2
+ rm -rf /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp
+ split-file /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/lld/test/MachO/icf-undef.s /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp
/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/llvm-mc -filetype=obj -triple=x86_64-apple-darwin19.0.0 /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test.s -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test.o # RUN: at line 4
+ /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/bin/llvm-mc -filetype=obj -triple=x86_64-apple-darwin19.0.0 /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test.s -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test.o
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 -lSystem -dylib --icf=all -undefined dynamic_lookup -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test.o # RUN: at line 7
+ 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 -lSystem -dylib --icf=all -undefined dynamic_lookup -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test.o
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
#0 0x0000aae141fa3820 ___interceptor_backtrace /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/../sanitizer_common/sanitizer_common_interceptors.inc:4530:13
#1 0x0000aae14219417c llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/lib/Support/Unix/Signals.inc:823:7
#2 0x0000aae14218e3f8 llvm::sys::RunSignalHandlers() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/lib/Support/Signals.cpp:105:18
#3 0x0000aae142195e18 SignalHandler(int, siginfo_t*, void*) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/lib/Support/Unix/Signals.inc:0:3
#4 0x0000aae141fd5990 IsInInterceptorScope /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_interceptors.cpp:78:10
#5 0x0000aae141fd5990 SignalAction(int, void*, void*) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_interceptors.cpp:1167:3
#6 0x0000f00035a658f8 (linux-vdso.so.1+0x8f8)
#7 0x0000f000354e2f5c (/lib/aarch64-linux-gnu/libc.so.6+0xa2f5c)
#8 0x0000aae141fe32a0 __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 0x0000aae141fe24f0 __msan::MsanThread::ClearShadowForThreadStackAndTLS() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_thread.cpp:31:7
#10 0x0000aae141fe2658 malloc_storage /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_thread.h:45:59
#11 0x0000aae141fe2658 __msan::MsanThread::Init() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_thread.cpp:45:3
#12 0x0000aae141f88354 MsanThreadStartFunc(void*) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_interceptors.cpp:1186:22
#13 0x0000f000354c595c (/lib/aarch64-linux-gnu/libc.so.6+0x8595c)
#14 0x0000f0003552ba4c (/lib/aarch64-linux-gnu/libc.so.6+0xeba4c)
MemorySanitizer:DEADLYSIGNAL
/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.script: line 5: 2770857 Aborted 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 -lSystem -dylib --icf=all -undefined dynamic_lookup -o /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/tools/lld/test/MachO/Output/icf-undef.s.tmp/test.o
--
********************
Testing: 0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
Slowest Tests:
--------------------------------------------------------------------------
99.52s: LLVM :: CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
```
</details>
https://github.com/llvm/llvm-project/pull/146640
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