[LLVMdev] between r241513 and r241594, clang 3.7.0svn now crashes building clang-tools-extra (original) (raw)

Renato Golin renato.golin at linaro.org
Tue Jul 7 10:27:01 PDT 2015

We caught that on tape :)

http://lab.llvm.org:8011/builders/clang-cmake-thumbv7-a15-full-sh/builds/1601

http://lab.llvm.org:8011/builders/clang-native-aarch64-full/builds/1818

I'm bisecting, it fails with 241570, works with 241566.

cheers, --renato

On 7 July 2015 at 17:35, Jack Howarth <howarth.mailing.lists at gmail.com> wrote:

Since we are only a week away from branching for 3.7.0, this new breakage in the stage2 bootstrap of llvm/clang/compiler-rt/clang-tools-extra should get triaged. At r241513, a three stage bootstrap with comparision of stage2/stage3 files completed fine. However at r241594 we now have the new regression reported in https://llvm.org/bugs/showbug.cgi?id=24054...

Assertion failed: (Val && "isa<> used on a null pointer"), function doit, file /sw/src/fink.build/llvm37-3.7.0-1/llvm-3.7.0.src/include/llvm/Support/Casting.h, line 95. 0 libLLVMSupport.3.7.0.dylib 0x00000001087e9e09 llvm::sys::PrintStackTrace(llvm::rawostream&) + 57 1 libLLVMSupport.3.7.0.dylib 0x00000001087ea9fb SignalHandler(int) + 875 2 libsystemplatform.dylib 0x00007fff97427f1a sigtramp + 26 3 libsystemplatform.dylib 0x00007fff58cdc578 sigtramp + 3247130232 4 libLLVMSupport.3.7.0.dylib 0x00000001087ea5e6 abort + 22 _5 libLLVMSupport.3.7.0.dylib 0x00000001087ea5c1 assertrtn + 81 6 libLLVMTransformUtils.3.7.0.dylib 0x0000000108870236 llvm::ConstantFoldTerminator(llvm::BasicBlock*, bool, llvm::TargetLibraryInfo const*) + 3782 7 libLLVMScalarOpts.3.7.0.dylib 0x000000010867905b (anonymous namespace)::IPSCCP::runOnModule(llvm::Module&) + 6043 8 libLLVMCore.3.7.0.dylib 0x0000000108131aa3 llvm::legacy::PassManagerImpl::run(llvm::Module&) + 1123 9 libclangCodeGen.3.7.0.dylib 0x0000000109ea94da clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::StringRef, llvm::Module*, clang::BackendAction, llvm::rawpwritestream*) + 7866 10 libclangCodeGen.3.7.0.dylib 0x000000010a0347f2 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) + 514 11 libclangParse.3.7.0.dylib 0x0000000109568ed4 clang::ParseAST(clang::Sema&, bool, bool) + 468 12 libclangFrontend.3.7.0.dylib 0x0000000108c76aab clang::FrontendAction::Execute() + 75 13 libclangFrontend.3.7.0.dylib 0x0000000108c408ac clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 956 14 libclangFrontendTool.3.7.0.dylib 0x0000000108d1136c clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 4140 15 clang-3.7 0x0000000106f2d338 cc1main(llvm::ArrayRef<char const*>, char const*, void*) + 936 16 clang-3.7 0x0000000106f2bde0 main + 11488 17 libdyld.dylib 0x00007fff901a45c9 start + 1 18 libdyld.dylib 0x0000000000000053 start + 1877326475 Stack dump: 0. Program arguments: /sw/src/fink.build/llvm37-3.7.0-1/build/stage1/bin/clang-3.7 -cc1 -triple x8664-apple-macosx10.10.0 -emit-obj -disable-free -main-file-name ARMISelLowering.cpp -mrelocation-model pic -pic-level 2 -mthread-model posix -mdisable-fp-elim -masm-verbose -munwind-tables -target-cpu core2 -target-linker-version 242.2 -dwarf-column-info -coverage-file /sw/src/fink.build/llvm37-3.7.0-1/build/stage2/lib/Target/ARM/CMakeFiles/LLVMARMCodeGen.dir/ARMISelLowering.cpp.o -resource-dir /sw/src/fink.build/llvm37-3.7.0-1/build/stage1/bin/../lib/clang/3.7.0 -cxx-isystem /sw/src/fink.build/llvm37-3.7.0-1/llvm-3.7.0.src/../libcxx-3.7.0.src/include _-D GTESTHASRTTI=0 -D _STDCCONSTANTMACROS -D STDCFORMATMACROS _-D STDCLIMITMACROS -D NDEBUG -I /sw/src/fink.build/llvm37-3.7.0-1/build/stage2/lib/Target/ARM -I /sw/src/fink.build/llvm37-3.7.0-1/llvm-3.7.0.src/lib/Target/ARM -I /sw/src/fink.build/llvm37-3.7.0-1/build/stage2/include -I /sw/src/fink.build/llvm37-3.7.0-1/llvm-3.7.0.src/include -stdlib=libc++ -O3 -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wno-long-long -Wnon-virtual-dtor -pedantic -std=c++11 -fdeprecated-macro -fdebug-compilation-dir /sw/src/fink.build/llvm37-3.7.0-1/build/stage2/lib/Target/ARM -ferror-limit 19 -fmessage-length 141 -fvisibility-inlines-hidden -stack-protector 1 -mstackrealign -fblocks -fno-rtti -fobjc-runtime=macosx-10.10.0 -fencode-extended-block-signature -fmax-type-align=16 -fdiagnostics-show-option -fcolor-diagnostics -vectorize-loops -vectorize-slp -o CMakeFiles/LLVMARMCodeGen.dir/ARMISelLowering.cpp.o -x c++ /sw/src/fink.build/llvm37-3.7.0-1/llvm-3.7.0.src/lib/Target/ARM/ARMISelLowering.cpp 1. parser at end of file 2. Per-module optimization passes 3. Running pass 'Interprocedural Sparse Conditional Constant Propagation' on module '/sw/src/fink.build/llvm37-3.7.0-1/llvm-3.7.0.src/lib/Target/ARM/ARMISelLowering.cpp'. clang-3.7: error: unable to execute command: Illegal instruction: 4 clang-3.7: error: clang frontend command failed due to signal (use -v to see invocation) clang version 3.7.0 (trunk) Target: x8664-apple-darwin14.4.0 Thread model: posix clang-3.7: note: diagnostic msg: PLEASE submit a bug report to http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and associated run script. clang-3.7: note: diagnostic msg: ******************** PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT: Preprocessed source(s) and associated run script(s) are located at: clang-3.7: note: diagnostic msg: /var/folders/nm/5lklm6011cz5jb2ms9bynl00000ks/T/ARMISelLowering-ab6090.cpp clang-3.7: note: diagnostic msg: /var/folders/nm/5lklm6011cz5jb2ms9bynl00000ks/T/ARMISelLowering-ab6090.sh clang-3.7: note: diagnostic msg:

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