[llvm-bugs] [Bug 37345] New: clang crashes on valid code at -Os and above: Assertion `idx < size()' failed
via llvm-bugs
llvm-bugs at lists.llvm.org
Fri May 4 13:34:18 PDT 2018
https://bugs.llvm.org/show_bug.cgi?id=37345
Bug ID: 37345
Summary: clang crashes on valid code at -Os and above:
Assertion `idx < size()' failed
Product: clang
Version: unspecified
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: -New Bugs
Assignee: unassignedclangbugs at nondot.org
Reporter: su at cs.ucdavis.edu
CC: llvm-bugs at lists.llvm.org
Tested with trunk revision 331481.
$ clangpolly -v
clang version 7.0.0 (http://llvm.org/git/clang.git
448ee95831d1eca7143e7639718584faba754da2) (llvm/trunk 331481)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/su/bin
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.9.4
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/5.3.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.4.7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.6.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7.3
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8.5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.3.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.2.0
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
$
$ clangpolly -O1 -c -w small.c
$
$ clangpolly -Os -c -w small.c
clang-6.0: /home/su/software/tmp/polly/llvm/include/llvm/ADT/SmallVector.h:149:
T& llvm::SmallVectorTemplateCommon<T, <template-parameter-1-2>
>::operator[](llvm::SmallVectorTemplateCommon<T, <template-parameter-1-2>
>::size_type) [with T = llvm::Value*; <template-parameter-1-2> = void;
llvm::SmallVectorTemplateCommon<T, <template-parameter-1-2> >::reference =
llvm::Value*&; llvm::SmallVectorTemplateCommon<T, <template-parameter-1-2>
>::size_type = long unsigned int]: Assertion `idx < size()' failed.
Stack dump:
0. Program arguments: /home/su/software/tmp/polly/llvm_build/bin/clang-6.0
-cc1 -triple x86_64-unknown-linux-gnu -emit-obj -disable-free -main-file-name
small.c -mrelocation-model static -mthread-model posix -fmath-errno
-masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array
-target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb
-momit-leaf-frame-pointer -coverage-notes-file
/home/su/specres/good/20180501-clangpolly-m32-O3-Wall-Wextra-pedantic-std=c99-build-204641/small.gcno
-resource-dir /home/su/software/tmp/polly/llvm_build/lib/clang/7.0.0
-internal-isystem /usr/local/include -internal-isystem
/home/su/software/tmp/polly/llvm_build/lib/clang/7.0.0/include
-internal-externc-isystem /usr/include/x86_64-linux-gnu
-internal-externc-isystem /include -internal-externc-isystem /usr/include -Os
-w -fdebug-compilation-dir
/home/su/specres/good/20180501-clangpolly-m32-O3-Wall-Wextra-pedantic-std=c99-build-204641
-ferror-limit 19 -fmessage-length 116 -fobjc-runtime=gcc
-fdiagnostics-show-option -fcolor-diagnostics -vectorize-loops -vectorize-slp
-o small.o -x c small.c
1. <eof> parser at end of file
2. Per-module optimization passes
3. Running pass 'CallGraph Pass Manager' on module 'small.c'.
4. Running pass 'Jump Threading' on function '@m'
#0 0x00000000025414da llvm::sys::PrintStackTrace(llvm::raw_ostream&)
/home/su/software/tmp/polly/llvm/lib/Support/Unix/Signals.inc:403:0
#1 0x000000000253f68e llvm::sys::RunSignalHandlers()
/home/su/software/tmp/polly/llvm/lib/Support/Signals.cpp:50:0
#2 0x000000000253f7f0 SignalHandler(int)
/home/su/software/tmp/polly/llvm/lib/Support/Unix/Signals.inc:243:0
#3 0x00007fdc46513330 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x10330)
#4 0x00007fdc452fbc37 gsignal
/build/eglibc-SvCtMH/eglibc-2.19/signal/../nptl/sysdeps/unix/sysv/linux/raise.c:56:0
#5 0x00007fdc452ff028 abort
/build/eglibc-SvCtMH/eglibc-2.19/stdlib/abort.c:91:0
#6 0x00007fdc452f4bf6 __assert_fail_base
/build/eglibc-SvCtMH/eglibc-2.19/assert/assert.c:92:0
#7 0x00007fdc452f4ca2 (/lib/x86_64-linux-gnu/libc.so.6+0x2fca2)
#8 0x0000000001af01e0 llvm::isa_impl_cl<llvm::ConstantInt, llvm::Value
const*>::doit(llvm::Value const*)
/home/su/software/tmp/polly/llvm/include/llvm/ADT/SmallVector.h:149:0
#9 0x0000000001af01e0 llvm::isa_impl_wrap<llvm::ConstantInt, llvm::Value
const*, llvm::Value const*>::doit(llvm::Value const* const&)
/home/su/software/tmp/polly/llvm/include/llvm/Support/Casting.h:133:0
#10 0x0000000001af01e0 llvm::isa_impl_wrap<llvm::ConstantInt, llvm::Use* const,
llvm::Value const*>::doit(llvm::Use* const&)
/home/su/software/tmp/polly/llvm/include/llvm/Support/Casting.h:125:0
#11 0x0000000001af01e0 isa<llvm::ConstantInt, llvm::Use*>
/home/su/software/tmp/polly/llvm/include/llvm/Support/Casting.h:144:0
#12 0x0000000001af01e0 llvm::BasicAAResult::aliasPHI(llvm::PHINode const*,
unsigned long, llvm::AAMDNodes const&, llvm::Value const*, unsigned long,
llvm::AAMDNodes const&, llvm::Value const*)
/home/su/software/tmp/polly/llvm/lib/Analysis/BasicAliasAnalysis.cpp:1529:0
#13 0x0000000001aeda28 llvm::BasicAAResult::aliasCheck(llvm::Value const*,
unsigned long, llvm::AAMDNodes, llvm::Value const*, unsigned long,
llvm::AAMDNodes, llvm::Value const*, llvm::Value const*)
/home/su/software/tmp/polly/llvm/lib/Analysis/BasicAliasAnalysis.cpp:1691:0
#14 0x0000000001aef0b2 llvm::SmallDenseMap<std::pair<llvm::MemoryLocation,
llvm::MemoryLocation>, llvm::AliasResult, 8u,
llvm::DenseMapInfo<std::pair<llvm::MemoryLocation, llvm::MemoryLocation> >,
llvm::detail::DenseMapPair<std::pair<llvm::MemoryLocation,
llvm::MemoryLocation>, llvm::AliasResult> >::getNumBuckets() const
/home/su/software/tmp/polly/llvm/include/llvm/ADT/DenseMap.h:1086:0
#15 0x0000000001aef0b2
llvm::DenseMapBase<llvm::SmallDenseMap<std::pair<llvm::MemoryLocation,
llvm::MemoryLocation>, llvm::AliasResult, 8u,
llvm::DenseMapInfo<std::pair<llvm::MemoryLocation, llvm::MemoryLocation> >,
llvm::detail::DenseMapPair<std::pair<llvm::MemoryLocation,
llvm::MemoryLocation>, llvm::AliasResult> >, std::pair<llvm::MemoryLocation,
llvm::MemoryLocation>, llvm::AliasResult,
llvm::DenseMapInfo<std::pair<llvm::MemoryLocation, llvm::MemoryLocation> >,
llvm::detail::DenseMapPair<std::pair<llvm::MemoryLocation,
llvm::MemoryLocation>, llvm::AliasResult> >::getNumBuckets() const
/home/su/software/tmp/polly/llvm/include/llvm/ADT/DenseMap.h:490:0
#16 0x0000000001aef0b2
llvm::DenseMapBase<llvm::SmallDenseMap<std::pair<llvm::MemoryLocation,
llvm::MemoryLocation>, llvm::AliasResult, 8u,
llvm::DenseMapInfo<std::pair<llvm::MemoryLocation, llvm::MemoryLocation> >,
llvm::detail::DenseMapPair<std::pair<llvm::MemoryLocation,
llvm::MemoryLocation>, llvm::AliasResult> >, std::pair<llvm::MemoryLocation,
llvm::MemoryLocation>, llvm::AliasResult,
llvm::DenseMapInfo<std::pair<llvm::MemoryLocation, llvm::MemoryLocation> >,
llvm::detail::DenseMapPair<std::pair<llvm::MemoryLocation,
llvm::MemoryLocation>, llvm::AliasResult> >::destroyAll()
/home/su/software/tmp/polly/llvm/include/llvm/ADT/DenseMap.h:327:0
#17 0x0000000001aef0b2 llvm::SmallDenseMap<std::pair<llvm::MemoryLocation,
llvm::MemoryLocation>, llvm::AliasResult, 8u,
llvm::DenseMapInfo<std::pair<llvm::MemoryLocation, llvm::MemoryLocation> >,
llvm::detail::DenseMapPair<std::pair<llvm::MemoryLocation,
llvm::MemoryLocation>, llvm::AliasResult> >::shrink_and_clear()
/home/su/software/tmp/polly/llvm/include/llvm/ADT/DenseMap.h:1014:0
#18 0x0000000001aef0b2 llvm::BasicAAResult::alias(llvm::MemoryLocation const&,
llvm::MemoryLocation const&)
/home/su/software/tmp/polly/llvm/lib/Analysis/BasicAliasAnalysis.cpp:767:0
#19 0x0000000001acec98 llvm::AAResults::alias(llvm::MemoryLocation const&,
llvm::MemoryLocation const&)
/home/su/software/tmp/polly/llvm/lib/Analysis/AliasAnalysis.cpp:106:0
#20 0x0000000001acf49d llvm::AAResults::getModRefInfo(llvm::StoreInst const*,
llvm::MemoryLocation const&)
/home/su/software/tmp/polly/llvm/lib/Analysis/AliasAnalysis.cpp:408:0
#21 0x0000000001b9f81d llvm::FindAvailablePtrLoadStore(llvm::Value*,
llvm::Type*, bool, llvm::BasicBlock*,
llvm::ilist_iterator<llvm::ilist_detail::node_options<llvm::Instruction, true,
false, void>, false, false>&, unsigned int, llvm::AAResults*, bool*, unsigned
int*) /home/su/software/tmp/polly/llvm/lib/Analysis/Loads.cpp:417:0
#22 0x0000000001b9ff6e llvm::FindAvailableLoadedValue(llvm::LoadInst*,
llvm::BasicBlock*,
llvm::ilist_iterator<llvm::ilist_detail::node_options<llvm::Instruction, true,
false, void>, false, false>&, unsigned int, llvm::AAResults*, bool*, unsigned
int*) /home/su/software/tmp/polly/llvm/lib/Analysis/Loads.cpp:334:0
#23 0x0000000002393da8
llvm::JumpThreadingPass::SimplifyPartiallyRedundantLoad(llvm::LoadInst*)
(.part.817)
/home/su/software/tmp/polly/llvm/lib/Transforms/Scalar/JumpThreading.cpp:1290:0
#24 0x0000000002399c29 llvm::JumpThreadingPass::ProcessBlock(llvm::BasicBlock*)
/home/su/software/tmp/polly/llvm/lib/Transforms/Scalar/JumpThreading.cpp:1180:0
#25 0x000000000239a4e1 llvm::JumpThreadingPass::runImpl(llvm::Function&,
llvm::TargetLibraryInfo*, llvm::LazyValueInfo*, llvm::AAResults*,
llvm::DeferredDominance*, bool, std::unique_ptr<llvm::BlockFrequencyInfo,
std::default_delete<llvm::BlockFrequencyInfo> >,
std::unique_ptr<llvm::BranchProbabilityInfo,
std::default_delete<llvm::BranchProbabilityInfo> >)
/home/su/software/tmp/polly/llvm/lib/Transforms/Scalar/JumpThreading.cpp:377:0
#26 0x000000000239ab6a ~unique_ptr /usr/include/c++/4.9/bits/unique_ptr.h:235:0
#27 0x000000000239ab6a (anonymous
namespace)::JumpThreading::runOnFunction(llvm::Function&) (.part.868)
/home/su/software/tmp/polly/llvm/lib/Transforms/Scalar/JumpThreading.cpp:299:0
#28 0x000000000208ca2b llvm::FPPassManager::runOnFunction(llvm::Function&)
/home/su/software/tmp/polly/llvm/lib/IR/LegacyPassManager.cpp:1520:0
#29 0x0000000001b2cd66 RunPassOnSCC
/home/su/software/tmp/polly/llvm/lib/Analysis/CallGraphSCCPass.cpp:156:0
#30 0x0000000001b2cd66 RunAllPassesOnSCC
/home/su/software/tmp/polly/llvm/lib/Analysis/CallGraphSCCPass.cpp:424:0
#31 0x0000000001b2cd66 (anonymous
namespace)::CGPassManager::runOnModule(llvm::Module&)
/home/su/software/tmp/polly/llvm/lib/Analysis/CallGraphSCCPass.cpp:479:0
#32 0x000000000208d73a runOnModule
/home/su/software/tmp/polly/llvm/lib/IR/LegacyPassManager.cpp:1597:0
#33 0x000000000208d73a llvm::legacy::PassManagerImpl::run(llvm::Module&)
/home/su/software/tmp/polly/llvm/lib/IR/LegacyPassManager.cpp:1700:0
#34 0x00000000026f64dd ~PrettyStackTraceString
/home/su/software/tmp/polly/llvm/include/llvm/Support/PrettyStackTrace.h:52:0
#35 0x00000000026f64dd (anonymous
namespace)::EmitAssemblyHelper::EmitAssembly(clang::BackendAction,
std::unique_ptr<llvm::raw_pwrite_stream,
std::default_delete<llvm::raw_pwrite_stream> >)
/home/su/software/tmp/polly/llvm/tools/clang/lib/CodeGen/BackendUtil.cpp:815:0
#36 0x00000000026f79b4 ~unique_ptr /usr/include/c++/4.9/bits/unique_ptr.h:235:0
#37 0x00000000026f79b4 clang::EmitBackendOutput(clang::DiagnosticsEngine&,
clang::HeaderSearchOptions const&, clang::CodeGenOptions const&,
clang::TargetOptions const&, clang::LangOptions const&, llvm::DataLayout
const&, llvm::Module*, clang::BackendAction,
std::unique_ptr<llvm::raw_pwrite_stream,
std::default_delete<llvm::raw_pwrite_stream> >)
/home/su/software/tmp/polly/llvm/tools/clang/lib/CodeGen/BackendUtil.cpp:1220:0
#38 0x0000000002f54fac ~unique_ptr /usr/include/c++/4.9/bits/unique_ptr.h:235:0
#39 0x0000000002f54fac
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
/home/su/software/tmp/polly/llvm/tools/clang/lib/CodeGen/CodeGenAction.cpp:294:0
#40 0x00000000034771cc clang::ParseAST(clang::Sema&, bool, bool)
/home/su/software/tmp/polly/llvm/tools/clang/lib/Parse/ParseAST.cpp:164:0
#41 0x0000000002f54440 clang::CodeGenAction::ExecuteAction()
/home/su/software/tmp/polly/llvm/tools/clang/lib/CodeGen/CodeGenAction.cpp:1044:0
#42 0x0000000002afde46 clang::FrontendAction::Execute()
/home/su/software/tmp/polly/llvm/tools/clang/lib/Frontend/FrontendAction.cpp:904:0
#43 0x0000000002ad0436
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
/home/su/software/tmp/polly/llvm/tools/clang/lib/Frontend/CompilerInstance.cpp:990:0
#44 0x0000000002b96da1
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
/home/su/software/tmp/polly/llvm/tools/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:255:0
#45 0x0000000000e046d0 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*)
/home/su/software/tmp/polly/llvm/tools/clang/tools/driver/cc1_main.cpp:222:0
#46 0x0000000000d878c1 ExecuteCC1Tool
/home/su/software/tmp/polly/llvm/tools/clang/tools/driver/driver.cpp:310:0
#47 0x0000000000d878c1 main
/home/su/software/tmp/polly/llvm/tools/clang/tools/driver/driver.cpp:382:0
#48 0x00007fdc452e6f45 __libc_start_main
/build/eglibc-SvCtMH/eglibc-2.19/csu/libc-start.c:321:0
#49 0x0000000000e004c9 _start
(/home/su/software/tmp/polly/llvm_build/bin/clang-6.0+0xe004c9)
clang-6.0: error: unable to execute command: Aborted (core dumped)
clang-6.0: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 7.0.0 (http://llvm.org/git/clang.git
448ee95831d1eca7143e7639718584faba754da2) (llvm/trunk 331481)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/su/bin
clang-6.0: 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-6.0: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-6.0: note: diagnostic msg: /tmp/small-6d96aa.c
clang-6.0: note: diagnostic msg: /tmp/small-6d96aa.sh
clang-6.0: note: diagnostic msg:
********************
$
------------------------------------------
char a, b, c, d;
int e, f, g, h, i, j, *k;
char l () { return c ? c : b % c; }
int m ()
{
char n[1];
int *o;
n[0] = 1;
while (a)
{
if (n[0])
continue;
int p, *q = &p;
while (h)
{
short r;
if (d)
{
int **s = &o;
*s = &i;
return 0;
}
p = 0;
j = e ? e : 3 / e;
*k = j;
if (p)
continue;
return 0;
}
if (n[g])
{
int **s = &o;
*o = l ();
*s = q;
}
if (f)
continue;
o ? 0 : f && a;
return 1;
}
return 0;
}
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