nathanchance wrote:
The latest version of this change causes test failures for me:
```
$ cmake \
-B build \
-G Ninja \
-S llvm \
--log-level=NOTICE \
-Wno-dev \
-DCMAKE_BUILD_TYPE=Release \
-DCMAKE_C_COMPILER=clang \
-DCMAKE_CXX_COMPILER=clang++ \
-DLLVM_ENABLE_ASSERTIONS=true \
-DLLVM_ENABLE_PROJECTS=clang \
-DLLVM_USE_LINKER=lld
$ ninja -C build check-clang
...
FAIL: Clang :: OpenMP/distribute_parallel_for_simd_misc_messages.c (12637 of
20466)
******************** TEST 'Clang ::
OpenMP/distribute_parallel_for_simd_misc_messages.c' FAILED ********************
Exit Code: 139
Command Output (stderr):
--
RUN: at line 1: /mnt/nvme/tmp/build/llvm-bisect/bin/clang -cc1
-internal-isystem /mnt/nvme/tmp/build/llvm-bisect/lib/clang/18/include
-nostdsysteminc -fsyntax-only -fopenmp -fopenmp-version=45
-verify=expected,omp45
/home/nathan/cbl/src/llvm-project/clang/test/OpenMP/distribute_parallel_for_simd_misc_messages.c
-Wuninitialized
+ /mnt/nvme/tmp/build/llvm-bisect/bin/clang -cc1 -internal-isystem
/mnt/nvme/tmp/build/llvm-bisect/lib/clang/18/include -nostdsysteminc
-fsyntax-only -fopenmp -fopenmp-version=45 -verify=expected,omp45
/home/nathan/cbl/src/llvm-project/clang/test/OpenMP/distribute_parallel_for_simd_misc_messages.c
-Wuninitialized
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and
include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: /mnt/nvme/tmp/build/llvm-bisect/bin/clang -cc1
-internal-isystem /mnt/nvme/tmp/build/llvm-bisect/lib/clang/18/include
-nostdsysteminc -fsyntax-only -fopenmp -fopenmp-version=45
-verify=expected,omp45
/home/nathan/cbl/src/llvm-project/clang/test/OpenMP/distribute_parallel_for_simd_misc_messages.c
-Wuninitialized
1.
/home/nathan/cbl/src/llvm-project/clang/test/OpenMP/distribute_parallel_for_simd_misc_messages.c:359:1:
at annotation token
2.
/home/nathan/cbl/src/llvm-project/clang/test/OpenMP/distribute_parallel_for_simd_misc_messages.c:350:33:
parsing function body 'test_safelen_simdlen'
3.
/home/nathan/cbl/src/llvm-project/clang/test/OpenMP/distribute_parallel_for_simd_misc_messages.c:350:33:
in compound statement ('{}')
#0 0x0000564839563fb8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x7787fb8)
#1 0x0000564839561b7e llvm::sys::RunSignalHandlers()
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x7785b7e)
#2 0x0000564839564668 SignalHandler(int) Signals.cpp:0:0
#3 0x00007f1976577710 (/usr/lib/libc.so.6+0x3e710)
#4 0x000056483bd312a1 clang::Sema::ActOnFields(clang::Scope*,
clang::SourceLocation, clang::Decl*, llvm::ArrayRef<clang::Decl*>,
clang::SourceLocation, clang::SourceLocation, clang::ParsedAttributesView
const&) (/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9f552a1)
#5 0x000056483c304887 clang::Sema::ActOnCapturedRegionError()
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0xa528887)
#6 0x000056483c1cdb48
clang::Sema::ActOnOpenMPRegionEnd(clang::ActionResult<clang::Stmt*, true>,
llvm::ArrayRef<clang::OMPClause*>)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0xa3f1b48)
#7 0x000056483bac79ec
clang::Parser::ParseOpenMPDeclarativeOrExecutableDirective(clang::Parser::ParsedStmtContext,
bool) (/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9ceb9ec)
#8 0x000056483ba955ba
clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*,
clang::ParsedAttributes&, clang::ParsedAttributes&)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9cb95ba)
#9 0x000056483ba93972
clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9cb7972)
#10 0x000056483ba93810 clang::Parser::ParseStatement(clang::SourceLocation*,
clang::Parser::ParsedStmtContext)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9cb7810)
#11 0x000056483bac7999
clang::Parser::ParseOpenMPDeclarativeOrExecutableDirective(clang::Parser::ParsedStmtContext,
bool) (/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9ceb999)
#12 0x000056483ba955ba
clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*,
clang::ParsedAttributes&, clang::ParsedAttributes&)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9cb95ba)
#13 0x000056483ba93972
clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9cb7972)
#14 0x000056483ba9dbc1 clang::Parser::ParseCompoundStatementBody(bool)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9cc1bc1)
#15 0x000056483ba9ec62 clang::Parser::ParseFunctionStatementBody(clang::Decl*,
clang::Parser::ParseScope&)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9cc2c62)
#16 0x000056483b9f2ded
clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&,
clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9c16ded)
#17 0x000056483ba63a3e clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&,
clang::DeclaratorContext, clang::ParsedAttributes&, clang::SourceLocation*,
clang::Parser::ForRangeInit*)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9c87a3e)
#18 0x000056483b9f1a5f
clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&,
clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9c15a5f)
#19 0x000056483b9f12e6
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&,
clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9c152e6)
#20 0x000056483b9f01bd
clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&,
clang::ParsedAttributes&, clang::ParsingDeclSpec*)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9c141bd)
#21 0x000056483b9ee226
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&,
clang::Sema::ModuleImportState&)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9c12226)
#22 0x000056483b9e8c1e clang::ParseAST(clang::Sema&, bool, bool)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x9c0cc1e)
#23 0x000056483a139d0f clang::FrontendAction::Execute()
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x835dd0f)
#24 0x000056483a0a972d
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x82cd72d)
#25 0x000056483a21c52e
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x844052e)
#26 0x0000564836f72202 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x5196202)
#27 0x0000564836f6e5ad ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&,
llvm::ToolContext const&) driver.cpp:0:0
#28 0x0000564836f6d299 clang_main(int, char**, llvm::ToolContext const&)
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x5191299)
#29 0x0000564836f7ea31 main
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x51a2a31)
#30 0x00007f1976560cd0 (/usr/lib/libc.so.6+0x27cd0)
#31 0x00007f1976560d8a __libc_start_main (/usr/lib/libc.so.6+0x27d8a)
#32 0x0000564836f6aaa5 _start
(/mnt/nvme/tmp/build/llvm-bisect/bin/clang+0x518eaa5)
...
********************
********************
Failed Tests (17):
Clang :: OpenMP/distribute_parallel_for_simd_misc_messages.c
Clang :: OpenMP/distribute_simd_misc_messages.c
Clang :: OpenMP/for_misc_messages.c
Clang :: OpenMP/for_simd_misc_messages.c
Clang :: OpenMP/master_taskloop_misc_messages.c
Clang :: OpenMP/master_taskloop_simd_misc_messages.c
Clang :: OpenMP/parallel_for_misc_messages.c
Clang :: OpenMP/parallel_for_simd_misc_messages.c
Clang :: OpenMP/parallel_master_taskloop_misc_messages.c
Clang :: OpenMP/parallel_master_taskloop_simd_misc_messages.c
Clang :: OpenMP/simd_misc_messages.c
Clang :: OpenMP/target_parallel_for_misc_messages.c
Clang :: OpenMP/target_parallel_for_simd_misc_messages.c
Clang :: OpenMP/target_teams_distribute_parallel_for_simd_misc_messages.c
Clang :: OpenMP/target_teams_distribute_simd_misc_messages.c
Clang :: OpenMP/taskloop_misc_messages.c
Clang :: OpenMP/taskloop_simd_misc_messages.c
...
```
I don't mean for this next bit to sound as aggressive or irritated as it might
but https://github.com/llvm/llvm-project/issues/73168 has been open for almost
a month now and it is actively preventing us from testing the Linux kernel
against tip of tree LLVM because (for better or worse...) the kernel has
started deploying `__attribute__((__counted_by__(...)))` annotations (and other
developers are hitting this too:
https://github.com/llvm/llvm-project/issues/75173). Can we please come to some
consensus so that issue can be resolved?
https://github.com/llvm/llvm-project/pull/73730
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