https://llvm.org/bugs/show_bug.cgi?id=27584
Bug ID: 27584
Summary: LLVM trunk crash with knl target
Product: tools
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: llc
Assignee: unassignedb...@nondot.org
Reporter: anton.mitrok...@phystech.edu
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Created attachment 16283
--> https://llvm.org/bugs/attachment.cgi?id=16283&action=edit
Reproducer
Reproducer (see attachments):
> clang++ -O3 -march=knl out crash.cpp
> clang -v:
clang version 3.9.0 (trunk 268042)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /export/users/amitrokh/llvm/bin-trunk/bin
Found candidate GCC installation: /usr/lib/gcc/i686-redhat-linux/4.8.2
Found candidate GCC installation: /usr/lib/gcc/i686-redhat-linux/4.8.5
Found candidate GCC installation: /usr/lib/gcc/x86_64-redhat-linux/4.8.2
Found candidate GCC installation: /usr/lib/gcc/x86_64-redhat-linux/4.8.5
Selected GCC installation: /usr/lib/gcc/x86_64-redhat-linux/4.8.5
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Selected multilib: .;@m64
Output:
clang-3.9: /export/users/amitrokh/llvm/llvm-trunk/lib/IR/Constants.cpp:1987:
static llvm::Constant* llvm::ConstantExpr::getGetElementPtr(llvm::Type*,
llvm::Constant*, llvm::ArrayRef<llvm::Value*>, bool, llvm::Type*): Assertion
`Idxs[i]->getType()->isVectorTy() == ReqTy->isVectorTy() && "getelementptr
index type missmatch"' failed.
#0 0x000000000110e885 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x110e885)
#1 0x000000000110c636 llvm::sys::RunSignalHandlers()
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x110c636)
#2 0x000000000110c861 SignalHandler(int)
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x110c861)
#3 0x00007fea7b487100 __restore_rt (/lib64/libpthread.so.0+0xf100)
#4 0x00007fea7a6b55f7 __GI_raise (/lib64/libc.so.6+0x355f7)
#5 0x00007fea7a6b6ce8 __GI_abort (/lib64/libc.so.6+0x36ce8)
#6 0x00007fea7a6ae566 __assert_fail_base (/lib64/libc.so.6+0x2e566)
#7 0x00007fea7a6ae612 (/lib64/libc.so.6+0x2e612)
#8 0x0000000000d35ae4 llvm::ConstantExpr::getGetElementPtr(llvm::Type*,
llvm::Constant*, llvm::ArrayRef<llvm::Value*>, bool, llvm::Type*)
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0xd35ae4)
#9 0x00000000009b4abc llvm::SimplifyGEPInst(llvm::Type*,
llvm::ArrayRef<llvm::Value*>, llvm::DataLayout const&, llvm::TargetLibraryInfo
const*, llvm::DominatorTree const*, llvm::AssumptionCache*, llvm::Instruction
const*) (/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x9b4abc)
#10 0x00000000009be85d llvm::SimplifyInstruction(llvm::Instruction*,
llvm::DataLayout const&, llvm::TargetLibraryInfo const*, llvm::DominatorTree
const*, llvm::AssumptionCache*)
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x9be85d)
#11 0x000000000116a994 llvm::UnrollLoop(llvm::Loop*, unsigned int, unsigned
int, bool, bool, unsigned int, llvm::LoopInfo*, llvm::ScalarEvolution*,
llvm::DominatorTree*, llvm::AssumptionCache*, bool)
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x116a994)
#12 0x000000000101c560 tryToUnrollLoop(llvm::Loop*, llvm::DominatorTree&,
llvm::LoopInfo*, llvm::ScalarEvolution*, llvm::TargetTransformInfo const&,
llvm::AssumptionCache&, bool, llvm::Optional<unsigned int>,
llvm::Optional<unsigned int>, llvm::Optional<bool>, llvm::Optional<bool>)
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x101c560)
#13 0x000000000101d9e4 (anonymous
namespace)::LoopUnroll::runOnLoop(llvm::Loop*, llvm::LPPassManager&)
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x101d9e4)
#14 0x00000000019b5a27 llvm::LPPassManager::runOnFunction(llvm::Function&)
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x19b5a27)
#15 0x0000000000d9de43 llvm::FPPassManager::runOnFunction(llvm::Function&)
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0xd9de43)
#16 0x0000000000d9e1fb llvm::FPPassManager::runOnModule(llvm::Module&)
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0xd9e1fb)
#17 0x0000000000d9e50f llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0xd9e50f)
#18 0x000000000125bc18 clang::EmitBackendOutput(clang::DiagnosticsEngine&,
clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions
const&, llvm::DataLayout const&, llvm::Module*, clang::BackendAction,
llvm::raw_pwrite_stream*)
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x125bc18)
#19 0x0000000001893efc
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x1893efc)
#20 0x0000000001c9218b clang::ParseAST(clang::Sema&, bool, bool)
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x1c9218b)
#21 0x00000000018942bb clang::CodeGenAction::ExecuteAction()
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x18942bb)
#22 0x0000000001574a76 clang::FrontendAction::Execute()
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x1574a76)
#23 0x000000000155079e
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x155079e)
#24 0x0000000001608b5c
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x1608b5c)
#25 0x00000000006eb6c8 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x6eb6c8)
#26 0x00000000006c49bf main
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x6c49bf)
#27 0x00007fea7a6a1b15 __libc_start_main (/lib64/libc.so.6+0x21b15)
#28 0x00000000006e7745 _start
(/export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9+0x6e7745)
Stack dump:
0. Program arguments: /export/users/amitrokh/llvm/bin-trunk/bin/clang-3.9
-cc1 -triple x86_64-unknown-linux-gnu -emit-obj -disable-free -main-file-name
crash.cpp -mrelocation-model static -mthread-model posix -fmath-errno
-masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array
-target-cpu knl -momit-leaf-frame-pointer -dwarf-column-info
-debugger-tuning=gdb -resource-dir
/export/users/amitrokh/llvm/bin-trunk/bin/../lib/clang/3.9.0 -internal-isystem
/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5
-internal-isystem
/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/x86_64-redhat-linux
-internal-isystem
/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/backward
-internal-isystem /usr/local/include -internal-isystem
/export/users/amitrokh/llvm/bin-trunk/bin/../lib/clang/3.9.0/include
-internal-externc-isystem /include -internal-externc-isystem /usr/include -O3
-fdeprecated-macro -fdebug-compilation-dir
/export/users/amitrokh/forCreduce/untracked/new_crash -ferror-limit 19
-fmessage-length 237 -fobjc-runtime=gcc -fcxx-exceptions -fexceptions
-fdiagnostics-show-option -fcolor-diagnostics -vectorize-loops -vectorize-slp
-o /tmp/crash-b925ae.o -x c++ crash.cpp
1. <eof> parser at end of file
2. Per-module optimization passes
3. Running pass 'Function Pass Manager' on module 'crash.cpp'.
4. Running pass 'Loop Pass Manager' on function '@_Z4initv'
5. Running pass 'Unroll loops' on basic block '%vector.body'
clang-3.9: error: unable to execute command: Aborted (core dumped)
clang-3.9: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 3.9.0 (trunk 268042)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /export/users/amitrokh/llvm/bin-trunk/bin
clang-3.9: 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-3.9: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-3.9: note: diagnostic msg: /tmp/out-11e039.c
clang-3.9: note: diagnostic msg: /tmp/crash-637796.cpp
clang-3.9: note: diagnostic msg: /tmp/out-11e039.sh
clang-3.9: note: diagnostic msg:
********************
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