[LLVMdev] Assertion `PI && "Expected required passes to be initialized"' failed for AliasAnalysis.

[Alexander Potapenko]

Adding initializeAnalysis() indeed helped:

2680 ModulePass *llvm::createThreadSanitizerPass() {
2681   PassRegistry &Registry = *PassRegistry::getPassRegistry();
2682   initializeAnalysis(Registry);
2683   return new ThreadSanitizer();
2684 }

This looks a bit awkward, but still allows me to move further.
Thanks a lot!

On Tue, Dec 6, 2011 at 7:33 PM, Dmitry N. Mikushin <maemarcus at gmail.com> wrote:
> Hi Alexander,
>
> I had the same error:
>
> sincos: /home/marcusmae/rpmbuild/BUILD/llvm/lib/VMCore/PassManager.cpp:635:
> void llvm::PMTopLevelManager::schedulePass(llvm::Pass*): Assertion `PI
> && "Expected required passes to be initialized"' failed.
>
> The solution was to add:
>
>                PassRegistry &Registry = *PassRegistry::getPassRegistry();
>                initializeCore(Registry);
>                initializeScalarOpts(Registry);
>                initializeIPO(Registry);
>                initializeAnalysis(Registry);
>                initializeIPA(Registry);
>                initializeTransformUtils(Registry);
>                initializeInstCombine(Registry);
>                initializeInstrumentation(Registry);
>                initializeTarget(Registry);
>
> before creating passes. Maybe it could help you to track down the issue.
>
> - D.
>
> 2011/12/6 Alexander Potapenko <glider at google.com>:
>> Dear lazydev,
>>
>> I'm writing an instrumentation pass that depends on AliasAnalysis. My
>> getAnalysisUsage() looks as follows:
>>
>> 2453 void ThreadSanitizer::getAnalysisUsage(AnalysisUsage &AU) const {
>> 2454   AU.addRequired<TargetData>();
>> 2455   AU.addRequired<AliasAnalysis>();
>> 2456 }
>>
>> and the pass initialization:
>>
>> 2668 char ThreadSanitizer::ID = 0;
>> 2669 INITIALIZE_PASS_BEGIN(ThreadSanitizer, "tsan",
>> 2670                       "Compile-time instrumentation for runtime "
>> 2671                       "data race detection with ThreadSanitizer",
>> 2672                       false, false)
>> 2673 INITIALIZE_PASS_DEPENDENCY(TargetData)
>> 2674 INITIALIZE_AG_DEPENDENCY(AliasAnalysis)
>> 2675 INITIALIZE_PASS_END(ThreadSanitizer, "tsan",
>> 2676                     "Compile-time instrumentation for runtime "
>> 2677                     "data race detection with ThreadSanitizer",
>> 2678                     false, false)
>> 2679
>>
>>
>> However when I run Clang with my pass enabled, I get the following error:
>> $ clang_build_Linux/Release+Asserts/bin/clang -fthread-sanitizer -c t.c
>> CREATE
>> clang: /usr/local/google/tsan-llvm/data-race-test/clang_src/lib/VMCore/PassManager.cpp:634:
>> void llvm::PMTopLevelManager::schedulePass(llvm::Pass*): Assertion `PI
>> && "Expected required passes to be initialized"' failed.
>> 0  clang           0x0000000001d1757f
>> 1  clang           0x0000000001d197f2
>> 2  libpthread.so.0 0x00007fe8a157d8f0
>> 3  libc.so.6       0x00007fe8a086ca75 gsignal + 53
>> 4  libc.so.6       0x00007fe8a08705c0 abort + 384
>> 5  libc.so.6       0x00007fe8a0865941 __assert_fail + 241
>> 6  clang           0x0000000001cb22a7
>> 7  clang           0x0000000001cb4716 llvm::PassManager::add(llvm::Pass*) + 262
>> 8  clang           0x00000000011e0ea6
>> llvm::PassManagerBuilder::addExtensionsToPM(llvm::PassManagerBuilder::ExtensionPointTy,
>> llvm::PassManagerBase&) const + 406
>> 9  clang           0x000000000083b5e1
>> clang::EmitBackendOutput(clang::DiagnosticsEngine&,
>> clang::CodeGenOptions const&, clang::TargetOptions const&,
>> clang::LangOptions const&, llvm::Module*, clang::BackendAction,
>> llvm::raw_ostream*) + 897
>> 10 clang           0x0000000000838f61
>> clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) +
>> 353
>> 11 clang           0x0000000000986caf clang::ParseAST(clang::Sema&, bool) + 511
>> 12 clang           0x0000000000837b34 clang::CodeGenAction::ExecuteAction() + 68
>> 13 clang           0x00000000006eb6b5
>> clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 373
>> 14 clang           0x00000000006d3d59
>> clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1401
>> 15 clang           0x00000000006c9fc7 cc1_main(char const**, char
>> const**, char const*, void*) + 791
>> 16 clang           0x00000000006d2b27 main + 7175
>> 17 libc.so.6       0x00007fe8a0857c4d __libc_start_main + 253
>> 18 clang           0x00000000006c7bc9
>> Stack dump:
>> 0.      Program arguments:
>> /usr/local/google/tsan-llvm/data-race-test/clang_build_Linux/Release+Asserts/bin/clang
>> -cc1 -triple x86_64-unknown-linux-gnu -emit-obj -mrelax-all
>> -disable-free -main-file-name t.c -mrelocation-model static
>> -mdisable-fp-elim -masm-verbose -mconstructor-aliases -munwind-tables
>> -target-cpu x86-64 -target-linker-version 2.20.1
>> -momit-leaf-frame-pointer -coverage-file t.o -resource-dir
>> /usr/local/google/tsan-llvm/data-race-test/clang_build_Linux/Release+Asserts/bin/../lib/clang/3.1
>> -fmodule-cache-path /var/tmp/clang-module-cache -internal-isystem
>> /usr/local/include -internal-isystem
>> /usr/local/google/tsan-llvm/data-race-test/clang_build_Linux/Release+Asserts/bin/../lib/clang/3.1/include
>> -internal-externc-isystem /usr/include/x86_64-linux-gnu
>> -internal-externc-isystem /include -internal-externc-isystem
>> /usr/include -fdebug-compilation-dir
>> /usr/local/google/tsan-llvm/data-race-test -ferror-limit 19
>> -fmessage-length 150 -fthread-sanitizer -fgnu-runtime
>> -fobjc-runtime-has-arc -fobjc-runtime-has-weak -fobjc-fragile-abi
>> -fdiagnostics-show-option -fcolor-diagnostics -o t.o -x c t.c
>>
>>
>> Do I need something besides INITIALIZE_AG_DEPENDENCY in order to
>> initialize AliasAnalysis? (I've verified that removing TargetData does
>> not fix the problem)
>>
>> TIA,
>> Alexander Potapenko
>> Software Engineer
>> Google Moscow
>> _______________________________________________
>> LLVM Developers mailing list
>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev



-- 
Alexander Potapenko
Software Engineer
Google Moscow