NoQ reopened this revision.
NoQ added a comment.
This revision is now accepted and ready to land.

Hmm, reverted because i'm seeing crashes on some buildbots (works for me 
though).

It's crashing somewhere in `saveHash`, seems that some `Stmt`s are null. For 
instance, 
http://lab.llvm.org:8011/builders/clang-cmake-aarch64-42vma/builds/5998 :

  #0 0x00000000015356f8 llvm::sys::PrintStackTrace(llvm::raw_ostream&) 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x15356f8)
  #1 0x0000000001533a58 llvm::sys::RunSignalHandlers() 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x1533a58)
  #2 0x0000000001533d0c SignalHandler(int) 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x1533d0c)
  #3 0x000003ffb5150510 (linux-vdso.so.1+0x510)
  #4 0x0000000002b562f0 clang::Stmt::children() 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x2b562f0)
  #5 0x00000000029772a4 
clang::RecursiveCloneTypeIIConstraint::saveHash(clang::Stmt const*, clang::Decl 
const*, std::vector<std::pair<unsigned long, clang::StmtSequence>, 
std::allocator<std::pair<unsigned long, clang::StmtSequence> > >&) 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x29772a4)
  #6 0x00000000029795a8 
clang::RecursiveCloneTypeIIConstraint::constrain(std::vector<llvm::SmallVector<clang::StmtSequence,
 8u>, std::allocator<llvm::SmallVector<clang::StmtSequence, 8u> > >&) 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x29795a8)
  #7 0x00000000026786b0 void 
clang::CloneDetector::findClones<clang::RecursiveCloneTypeIIConstraint, 
clang::MinComplexityConstraint, clang::MinGroupSizeConstraint, 
clang::OnlyLargestCloneConstraint>(std::vector<llvm::SmallVector<clang::StmtSequence,
 8u>, std::allocator<llvm::SmallVector<clang::StmtSequence, 8u> > >&, 
clang::RecursiveCloneTypeIIConstraint, clang::MinComplexityConstraint, 
clang::MinGroupSizeConstraint, clang::OnlyLargestCloneConstraint) 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x26786b0)
  #8 0x0000000002678b08 void 
clang::ento::check::EndOfTranslationUnit::_checkEndOfTranslationUnit<(anonymous 
namespace)::CloneChecker>(void*, clang::TranslationUnitDecl const*, 
clang::ento::AnalysisManager&, clang::ento::BugReporter&) 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x2678b08)
  #9 0x00000000028a9394 
clang::ento::CheckerManager::runCheckersOnEndOfTranslationUnit(clang::TranslationUnitDecl
 const*, clang::ento::AnalysisManager&, clang::ento::BugReporter&) 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x28a9394)
  #10 0x000000000204b62c (anonymous 
namespace)::AnalysisConsumer::HandleTranslationUnit(clang::ASTContext&) [clone 
.part.4452] [clone .constprop.4496] 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x204b62c)
  #11 0x000000000206de78 clang::ParseAST(clang::Sema&, bool, bool) 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x206de78)
  #12 0x00000000019e96b4 clang::FrontendAction::Execute() 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x19e96b4)
  #13 0x00000000019c2c70 
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x19c2c70)
  #14 0x0000000001a64f30 
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x1a64f30)
  #15 0x0000000000998420 cc1_main(llvm::ArrayRef<char const*>, char const*, 
void*) 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x998420)
  #16 0x0000000000963b94 main 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x963b94)
  #17 0x000003ffb4bef68c __libc_start_main (/lib64/libc.so.6+0x1f68c)
  #18 0x00000000009950e8 _start 
(/home/buildslave/buildslave/clang-cmake-aarch64-42vma/stage1/./bin/clang+0x9950e8)


Repository:
  rL LLVM

https://reviews.llvm.org/D23418



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