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giving clang -mllvm -regalloc=pbqp as a flag crashes llvm #16391

Open llvmbot opened 11 years ago

llvmbot commented 11 years ago
Bugzilla Link 16019
Version 3.2
OS All
Attachments post preprocessor c code
Reporter LLVM Bugzilla Contributor

Extended Description

runnning clang -c simplemat.c -march=corei7 -msse4.2 -O3 -v -S -mllvm -regalloc=pbqp

causes a crash with the following output

lang -c simplemat.c -march=corei7 -msse4.2 -O3 -v -S -mllvm -regalloc=pbqp -v clang version 3.2 (tags/RELEASE_32/final) Target: x86_64-apple-darwin12.3.0 Thread model: posix "/usr/local/Cellar/llvm/3.2/bin/clang" -cc1 -triple x86_64-apple-macosx10.8.0 -S -disable-free -main-file-name simplemat.c -mrelocation-model pic -pic-level 2 -mdisable-fp-elim -masm-verbose -munwind-tables -target-cpu corei7 -target-feature +sse4.2 -target-linker-version 134.9 -v -v -coverage-file /Users/carter/Dropbox/projects/active/WellPosedWork/code/numerics/cbits/simplemat.s -resource-dir /usr/local/Cellar/llvm/3.2/bin/../lib/clang/3.2 -fmodule-cache-path /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/clang-module-cache -O3 -fdebug-compilation-dir /Users/carter/Projects/active/WellPosedWork/code/numerics/cbits -ferror-limit 19 -fmessage-length 122 -stack-protector 1 -mstackrealign -fblocks -fobjc-runtime=macosx-10.8.0 -fobjc-dispatch-method=mixed -fobjc-default-synthesize-properties -fencode-extended-block-signature -fdiagnostics-show-option -fcolor-diagnostics -mllvm -regalloc=pbqp -o simplemat.s -x c simplemat.c clang -cc1 version 3.2 based upon LLVM 3.2svn default target x86_64-apple-darwin12.3.0

include "..." search starts here:

include <...> search starts here:

/usr/local/include /usr/local/Cellar/llvm/3.2/bin/../lib/clang/3.2/include /usr/include /System/Library/Frameworks (framework directory) /Library/Frameworks (framework directory) End of search list. simplemat.c:120:88: warning: backslash and newline separated by space [-Wbackslash-newline-escape] m128d resRowRightResultA##ix = _mm_dp_pd(lMatRowLeft##ix , rMatCol3Up, 0x31) ; \ ^ simplemat.c:122:51: warning: backslash and newline separated by space [-Wbackslash-newline-escape] resRowRight##ix += resRowRightResultA##ix ; \ ^ simplemat.c:124:79: warning: backslash and newline separated by space [-Wbackslash-newline-escape] resRowRightResultA##ix = _mm_dp_pd(lMatRowLeft##ix , rMatCol4Up, 0x32) ; \ ^ 0 libLLVM-3.2svn.dylib 0x000000010910738b PrintStackTrace(void) + 34 1 libLLVM-3.2svn.dylib 0x000000010910771d SignalHandler(int) + 228 2 libsystem_c.dylib 0x00007fff8527594a _sigtramp + 26 3 libsystem_c.dylib 0x0000000109bd1a00 _sigtramp + 18446603342740570320 4 libLLVM-3.2svn.dylib 0x0000000108c3bc5f PBQP::HeuristicSolverImpl::disconnectTrivialNodes() + 203 5 libLLVM-3.2svn.dylib 0x0000000108c39452 PBQP::HeuristicSolverImpl::setup() + 28 6 libLLVM-3.2svn.dylib 0x0000000108c39216 PBQP::HeuristicSolverImpl::computeSolution() + 24 7 libLLVM-3.2svn.dylib 0x0000000108c39187 PBQP::HeuristicSolver::solve(PBQP::Graph&) + 235 8 libLLVM-3.2svn.dylib 0x0000000108c372b8 (anonymous namespace)::RegAllocPBQP::runOnMachineFunction(llvm::MachineFunction&) + 1576 9 libLLVM-3.2svn.dylib 0x0000000108be967a llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 48 10 libLLVM-3.2svn.dylib 0x0000000108d1c3e7 llvm::FPPassManager::runOnFunction(llvm::Function&) + 295 11 libLLVM-3.2svn.dylib 0x0000000108d1c58b llvm::FPPassManager::runOnModule(llvm::Module&) + 63 12 libLLVM-3.2svn.dylib 0x0000000108d1c6c1 llvm::MPPassManager::runOnModule(llvm::Module&) + 255 13 libLLVM-3.2svn.dylib 0x0000000108d1ca04 llvm::PassManagerImpl::run(llvm::Module&) + 104 14 libLLVM-3.2svn.dylib 0x0000000108d1cb1d llvm::PassManager::run(llvm::Module&) + 13 15 clang 0x0000000107e3f944 std::vector<clang::serialization::ModuleFile, std::allocator<clang::serialization::ModuleFile*> >::_M_insert_aux(__gnu_cxx::normal_iterator<clang::serialization::ModuleFile, std::vector<clang::serialization::ModuleFile, std::allocator<clang::serialization::ModuleFile> > >, clang::serialization::ModuleFile const&) + 6844 16 clang 0x0000000107efc6d7 llvm::ParseIR(llvm::MemoryBuffer, llvm::SMDiagnostic&, llvm::LLVMContext&) + 1575 17 clang 0x0000000107f2baf1 clang::operator==(clang::specific_attr_iterator<clang::MBlazeInterruptHandlerAttr, llvm::SmallVector<clang::Attr, 2u> >, clang::specific_attr_iterator<clang::MBlazeInterruptHandlerAttr, llvm::SmallVector<clang::Attr, 2u> >) + 962 18 clang 0x0000000107efbd49 std::vector<clang::CXXRecordDecl const, std::allocator<clang::CXXRecordDecl const> >::_M_insert_aux(__gnu_cxx::__normal_iterator<clang::CXXRecordDecl const, std::vector<clang::CXXRecordDecl const, std::allocator<clang::CXXRecordDecl const> > >, clang::CXXRecordDecl const const&) + 9299 19 clang 0x0000000107d66522 std::_Rb_tree<clang::edit::FileOffset, std::pair<clang::edit::FileOffset const, clang::edit::EditedSource::FileEdit>, std::_Select1st<std::pair<clang::edit::FileOffset const, clang::edit::EditedSource::FileEdit> >, std::less, std::allocator<std::pair<clang::edit::FileOffset const, clang::edit::EditedSource::FileEdit> > >::_M_erase(std::_Rb_tree_node<std::pair<clang::edit::FileOffset const, clang::edit::EditedSource::FileEdit> >) + 3902 20 clang 0x0000000107d4dc0a std::vector<clang::CompilerInstance, std::allocator<clang::CompilerInstance> >::_M_insert_aux(gnu_cxx::__normal_iterator<clang::CompilerInstance*, std::vector<clang::CompilerInstance, std::allocator<clang::CompilerInstance> > >, clang::CompilerInstance const&) + 11528 21 clang 0x0000000107d24d5e std::_Rb_tree<std::string, std::string, std::_Identity, std::less, std::allocator >::_M_insert(std::_Rb_tree_node_base, std::_Rb_tree_node_base, std::string const&) + 3628 22 clang 0x0000000107d1ea60 23 clang 0x0000000107d220b8 std::vector<std::string, std::allocator >::_M_insert_aux(gnu_cxx::__normal_iterator<std::string*, std::vector<std::string, std::allocator > >, std::string const&) + 1192 24 libdyld.dylib 0x00007fff8699e7e1 start + 0 Stack dump:

  1. Program arguments: /usr/local/Cellar/llvm/3.2/bin/clang -cc1 -triple x86_64-apple-macosx10.8.0 -S -disable-free -main-file-name simplemat.c -mrelocation-model pic -pic-level 2 -mdisable-fp-elim -masm-verbose -munwind-tables -target-cpu corei7 -target-feature +sse4.2 -target-linker-version 134.9 -v -v -coverage-file /Users/carter/Dropbox/projects/active/WellPosedWork/code/numerics/cbits/simplemat.s -resource-dir /usr/local/Cellar/llvm/3.2/bin/../lib/clang/3.2 -fmodule-cache-path /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/clang-module-cache -O3 -fdebug-compilation-dir /Users/carter/Projects/active/WellPosedWork/code/numerics/cbits -ferror-limit 19 -fmessage-length 122 -stack-protector 1 -mstackrealign -fblocks -fobjc-runtime=macosx-10.8.0 -fobjc-dispatch-method=mixed -fobjc-default-synthesize-properties -fencode-extended-block-signature -fdiagnostics-show-option -fcolor-diagnostics -mllvm -regalloc=pbqp -o simplemat.s -x c simplemat.c
  2. parser at end of file
  3. Code generation
  4. Running pass 'Function Pass Manager' on module 'simplemat.c'.
  5. Running pass 'PBQP Register Allocator' on function '@fatDotProduct' clang: error: unable to execute command: Segmentation fault: 11 clang: error: clang frontend command failed due to signal (use -v to see invocation) clang version 3.2 (tags/RELEASE_32/final) Target: x86_64-apple-darwin12.3.0 Thread model: posix clang: 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: note: diagnostic msg:

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT: Preprocessed source(s) and associated run script(s) are located at: clang: note: diagnostic msg: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/simplemat-1Q8934.c clang: note: diagnostic msg: /var/folders/py/wgp_hj9d2rl3cx48yym_ynj00000gn/T/simplemat-1Q8934.sh clang: note: diagnostic msg:

the associated run script is

/usr/local/Cellar/llvm/3.2/bin/clang -cc1 -triple x86_64-apple-macosx10.8.0 -S -disable-free -main-file-name simplemat.c -mrelocation-model pic -pic-level 2 -mdisable-fp-elim -masm-verbose -munwind-tables -target-cpu corei7 -target-feature +sse4.2 -target-linker-version 134.9 -v -v -O3 -ferror-limit 19 -fmessage-length 122 -stack-protector 1 -mstackrealign -fblocks -fobjc-runtime=macosx-10.8.0 -fobjc-dispatch-method=mixed -fobjc-default-synthesize-properties -fencode-extended-block-signature -fdiagnostics-show-option -fcolor-diagnostics -mllvm -regalloc=pbqp -x c simplemat-1Q8934.c

Endilll commented 1 year ago

Can't reproduce using release and assertions builds of Clang 3.2 and 3.3. The only error I get is clang (LLVM option parsing): for the -regalloc option: Cannot find option named 'pbqp'!.

Endilll commented 1 year ago

Maybe I'm doing something wrong, because I see a similarly named class in backtrace.