[clang] [clang-format] Add option to remove leading blank lines (PR #91221)

Sat Jun 29 19:11:38 PDT 2024

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-aarch64-linux` running on `sanitizer-buildbot7` while building `clang-tools-extra,clang` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/51/builds/676

Here is the relevant piece of the build log for the reference:
```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
llvm-lit: /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-aarch64-linux/build/build_default/bin/clang', '--target=aarch64-unknown-linux-gnu', '-Wthread-safety', '-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', '-I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', '-idirafter', '/b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include', '-resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build', '-Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-aarch64-linux/build/build_default/bin/clang', '--target=aarch64-unknown-linux-gnu', '-Wthread-safety', '-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', '-I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', '-idirafter', '/b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include', '-resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build', '-Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-aarch64-linux/build/build_default/bin/clang', '--target=aarch64-unknown-linux-gnu', '-Wthread-safety', '-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', '-I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', '-idirafter', '/b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include', '-resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build', '-Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-aarch64-linux/build/build_default/bin/clang', '--target=aarch64-unknown-linux-gnu', '-Wthread-safety', '-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', '-I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', '-idirafter', '/b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include', '-resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build', '-Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-aarch64-linux/build/build_default/bin/clang', '--target=aarch64-unknown-linux-gnu', '-Wthread-safety', '-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', '-I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', '-idirafter', '/b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include', '-resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build', '-Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-aarch64-linux/build/build_default/bin/clang', '--target=aarch64-unknown-linux-gnu', '-Wthread-safety', '-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', '-I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', '-idirafter', '/b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include', '-resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build', '-Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-aarch64-linux/build/build_default/bin/clang', '--target=aarch64-unknown-linux-gnu', '-Wthread-safety', '-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', '-I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', '-idirafter', '/b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include', '-resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build', '-Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-aarch64-linux/build/llvm-project/llvm/utils/lit/lit/main.py:72: 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: 5289 tests, 48 workers --
Testing:  0.. 10.. 
FAIL: AddressSanitizer-aarch64-linux-dynamic :: TestCases/Posix/halt_on_error-signals.c (1076 of 5289)
******************** TEST 'AddressSanitizer-aarch64-linux-dynamic :: TestCases/Posix/halt_on_error-signals.c' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 3: /b/sanitizer-aarch64-linux/build/build_default/bin/clang  -fsanitize=address -mno-omit-leaf-frame-pointer -fno-omit-frame-pointer -fno-optimize-sibling-calls -gline-tables-only   -Wthread-safety -Wthread-safety-reference -Wthread-safety-beta  -nobuiltininc -I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include -idirafter /b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include -resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build -Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux  -shared-libasan -fsanitize-recover=address -pthread /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/asan/TestCases/Posix/halt_on_error-signals.c -o /b/sanitizer-aarch64-linux/build/compiler_rt_build/test/asan/AARCH64LinuxDynamicConfig/TestCases/Posix/Output/halt_on_error-signals.c.tmp
+ /b/sanitizer-aarch64-linux/build/build_default/bin/clang -fsanitize=address -mno-omit-leaf-frame-pointer -fno-omit-frame-pointer -fno-optimize-sibling-calls -gline-tables-only -Wthread-safety -Wthread-safety-reference -Wthread-safety-beta -nobuiltininc -I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include -idirafter /b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include -resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build -Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux -shared-libasan -fsanitize-recover=address -pthread /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/asan/TestCases/Posix/halt_on_error-signals.c -o /b/sanitizer-aarch64-linux/build/compiler_rt_build/test/asan/AARCH64LinuxDynamicConfig/TestCases/Posix/Output/halt_on_error-signals.c.tmp
In file included from /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/asan/TestCases/Posix/halt_on_error-signals.c:11:
In file included from /usr/lib/gcc/aarch64-linux-gnu/13/../../../../aarch64-linux-gnu/include/stdio.h:27:
In file included from /usr/lib/gcc/aarch64-linux-gnu/13/../../../../aarch64-linux-gnu/include/bits/libc-header-start.h:33:
/usr/lib/gcc/aarch64-linux-gnu/13/../../../../aarch64-linux-gnu/include/features.h:196:3: warning: "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE" [-W#warnings]
  196 | # warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
      |   ^
1 warning generated.
RUN: at line 5: env ASAN_OPTIONS=halt_on_error=false:suppress_equal_pcs=false  /b/sanitizer-aarch64-linux/build/compiler_rt_build/test/asan/AARCH64LinuxDynamicConfig/TestCases/Posix/Output/halt_on_error-signals.c.tmp 100 >/b/sanitizer-aarch64-linux/build/compiler_rt_build/test/asan/AARCH64LinuxDynamicConfig/TestCases/Posix/Output/halt_on_error-signals.c.tmp.log 2>&1 || true
+ env ASAN_OPTIONS=halt_on_error=false:suppress_equal_pcs=false /b/sanitizer-aarch64-linux/build/compiler_rt_build/test/asan/AARCH64LinuxDynamicConfig/TestCases/Posix/Output/halt_on_error-signals.c.tmp 100
+ true
RUN: at line 7: FileCheck --check-prefix=CHECK-COLLISION /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/asan/TestCases/Posix/halt_on_error-signals.c </b/sanitizer-aarch64-linux/build/compiler_rt_build/test/asan/AARCH64LinuxDynamicConfig/TestCases/Posix/Output/halt_on_error-signals.c.tmp.log || FileCheck --check-prefix=CHECK-NO-COLLISION /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/asan/TestCases/Posix/halt_on_error-signals.c </b/sanitizer-aarch64-linux/build/compiler_rt_build/test/asan/AARCH64LinuxDynamicConfig/TestCases/Posix/Output/halt_on_error-signals.c.tmp.log
+ FileCheck --check-prefix=CHECK-COLLISION /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/asan/TestCases/Posix/halt_on_error-signals.c
/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/asan/TestCases/Posix/halt_on_error-signals.c:29:22: error: CHECK-COLLISION: expected string not found in input
 // CHECK-COLLISION: AddressSanitizer: nested bug in the same thread, aborting
                     ^
<stdin>:1:1: note: scanning from here
=================================================================
^
<stdin>:55:78: note: possible intended match here
/b/sanitizer-aarch64-linux/build/build_default/./bin/llvm-symbolizer: error: AddressSanitizer': nested bug in the same thread, aborting.
                                                                             ^

Input file: <stdin>
Check file: /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/asan/TestCases/Posix/halt_on_error-signals.c

-dump-input=help explains the following input dump.

Input was:
<<<<<<
            1: ================================================================= 
check:29'0     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
Step 18 (test standalone compiler-rt) failure: test standalone compiler-rt (failure)
...
llvm-lit: /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-aarch64-linux/build/build_default/bin/clang', '--target=aarch64-unknown-linux-gnu', '-Wthread-safety', '-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', '-I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', '-idirafter', '/b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include', '-resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build', '-Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-aarch64-linux/build/build_default/bin/clang', '--target=aarch64-unknown-linux-gnu', '-Wthread-safety', '-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', '-I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', '-idirafter', '/b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include', '-resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build', '-Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-aarch64-linux/build/build_default/bin/clang', '--target=aarch64-unknown-linux-gnu', '-Wthread-safety', '-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', '-I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', '-idirafter', '/b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include', '-resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build', '-Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-aarch64-linux/build/build_default/bin/clang', '--target=aarch64-unknown-linux-gnu', '-Wthread-safety', '-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', '-I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', '-idirafter', '/b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include', '-resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build', '-Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-aarch64-linux/build/build_default/bin/clang', '--target=aarch64-unknown-linux-gnu', '-Wthread-safety', '-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', '-I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', '-idirafter', '/b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include', '-resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build', '-Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-aarch64-linux/build/build_default/bin/clang', '--target=aarch64-unknown-linux-gnu', '-Wthread-safety', '-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', '-I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', '-idirafter', '/b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include', '-resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build', '-Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60: warning: Path reported by clang does not exist: "/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu". This path was found by running ['/b/sanitizer-aarch64-linux/build/build_default/bin/clang', '--target=aarch64-unknown-linux-gnu', '-Wthread-safety', '-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', '-I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', '-idirafter', '/b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include', '-resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build', '-Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', '-print-runtime-dir'].
llvm-lit: /b/sanitizer-aarch64-linux/build/llvm-project/llvm/utils/lit/lit/main.py:72: 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: 5289 tests, 48 workers --
Testing:  0.. 10.. 
FAIL: AddressSanitizer-aarch64-linux-dynamic :: TestCases/Posix/halt_on_error-signals.c (1076 of 5289)
******************** TEST 'AddressSanitizer-aarch64-linux-dynamic :: TestCases/Posix/halt_on_error-signals.c' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 3: /b/sanitizer-aarch64-linux/build/build_default/bin/clang  -fsanitize=address -mno-omit-leaf-frame-pointer -fno-omit-frame-pointer -fno-optimize-sibling-calls -gline-tables-only   -Wthread-safety -Wthread-safety-reference -Wthread-safety-beta  -nobuiltininc -I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include -idirafter /b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include -resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build -Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux  -shared-libasan -fsanitize-recover=address -pthread /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/asan/TestCases/Posix/halt_on_error-signals.c -o /b/sanitizer-aarch64-linux/build/compiler_rt_build/test/asan/AARCH64LinuxDynamicConfig/TestCases/Posix/Output/halt_on_error-signals.c.tmp
+ /b/sanitizer-aarch64-linux/build/build_default/bin/clang -fsanitize=address -mno-omit-leaf-frame-pointer -fno-omit-frame-pointer -fno-optimize-sibling-calls -gline-tables-only -Wthread-safety -Wthread-safety-reference -Wthread-safety-beta -nobuiltininc -I/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include -idirafter /b/sanitizer-aarch64-linux/build/build_default/lib/clang/19/include -resource-dir=/b/sanitizer-aarch64-linux/build/compiler_rt_build -Wl,-rpath,/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux -shared-libasan -fsanitize-recover=address -pthread /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/asan/TestCases/Posix/halt_on_error-signals.c -o /b/sanitizer-aarch64-linux/build/compiler_rt_build/test/asan/AARCH64LinuxDynamicConfig/TestCases/Posix/Output/halt_on_error-signals.c.tmp
In file included from /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/asan/TestCases/Posix/halt_on_error-signals.c:11:
In file included from /usr/lib/gcc/aarch64-linux-gnu/13/../../../../aarch64-linux-gnu/include/stdio.h:27:
In file included from /usr/lib/gcc/aarch64-linux-gnu/13/../../../../aarch64-linux-gnu/include/bits/libc-header-start.h:33:
/usr/lib/gcc/aarch64-linux-gnu/13/../../../../aarch64-linux-gnu/include/features.h:196:3: warning: "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE" [-W#warnings]
  196 | # warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
      |   ^
1 warning generated.
RUN: at line 5: env ASAN_OPTIONS=halt_on_error=false:suppress_equal_pcs=false  /b/sanitizer-aarch64-linux/build/compiler_rt_build/test/asan/AARCH64LinuxDynamicConfig/TestCases/Posix/Output/halt_on_error-signals.c.tmp 100 >/b/sanitizer-aarch64-linux/build/compiler_rt_build/test/asan/AARCH64LinuxDynamicConfig/TestCases/Posix/Output/halt_on_error-signals.c.tmp.log 2>&1 || true
+ env ASAN_OPTIONS=halt_on_error=false:suppress_equal_pcs=false /b/sanitizer-aarch64-linux/build/compiler_rt_build/test/asan/AARCH64LinuxDynamicConfig/TestCases/Posix/Output/halt_on_error-signals.c.tmp 100
+ true
RUN: at line 7: FileCheck --check-prefix=CHECK-COLLISION /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/asan/TestCases/Posix/halt_on_error-signals.c </b/sanitizer-aarch64-linux/build/compiler_rt_build/test/asan/AARCH64LinuxDynamicConfig/TestCases/Posix/Output/halt_on_error-signals.c.tmp.log || FileCheck --check-prefix=CHECK-NO-COLLISION /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/asan/TestCases/Posix/halt_on_error-signals.c </b/sanitizer-aarch64-linux/build/compiler_rt_build/test/asan/AARCH64LinuxDynamicConfig/TestCases/Posix/Output/halt_on_error-signals.c.tmp.log
+ FileCheck --check-prefix=CHECK-COLLISION /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/asan/TestCases/Posix/halt_on_error-signals.c
/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/asan/TestCases/Posix/halt_on_error-signals.c:29:22: error: CHECK-COLLISION: expected string not found in input
 // CHECK-COLLISION: AddressSanitizer: nested bug in the same thread, aborting
                     ^
<stdin>:1:1: note: scanning from here
=================================================================
^
<stdin>:55:78: note: possible intended match here
/b/sanitizer-aarch64-linux/build/build_default/./bin/llvm-symbolizer: error: AddressSanitizer': nested bug in the same thread, aborting.
                                                                             ^

Input file: <stdin>
Check file: /b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/asan/TestCases/Posix/halt_on_error-signals.c

-dump-input=help explains the following input dump.

Input was:
<<<<<<
            1: ================================================================= 
check:29'0     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found

```

https://github.com/llvm/llvm-project/pull/91221