[llvm-bugs] [Bug 38793] New: clang crashes on valid code at -O1 and above with debugging enabled: Assertion `!getType()->isVoidTy() && "Cannot assign a name to void values!"' failed
via llvm-bugs
llvm-bugs at lists.llvm.org
Fri Aug 31 12:01:58 PDT 2018
https://bugs.llvm.org/show_bug.cgi?id=38793
Bug ID: 38793
Summary: clang crashes on valid code at -O1 and above with
debugging enabled: Assertion `!getType()->isVoidTy()
&& "Cannot assign a name to void values!"' 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
$ clangpolly -v
clang version 8.0.0 (http://llvm.org/git/clang.git
b9ef8cb5d0a5501643befcdcf6bef0a3dfa9e205) (llvm/trunk 341010)
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 -O0 small.c
$ clangpolly -O1 small.c
$
$ clangpolly -O1 -g small.c
clang-6.0: /home/su/software/tmp/polly/llvm/lib/IR/Value.cpp:256: void
llvm::Value::setNameImpl(const llvm::Twine&): Assertion `!getType()->isVoidTy()
&& "Cannot assign a name to void values!"' 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 -debug-info-kind=limited -dwarf-version=4
-debugger-tuning=gdb -momit-leaf-frame-pointer -resource-dir
/home/su/software/tmp/polly/llvm_build/lib/clang/8.0.0 -internal-isystem
/usr/local/include -internal-isystem
/home/su/software/tmp/polly/llvm_build/lib/clang/8.0.0/include
-internal-externc-isystem /usr/include/x86_64-linux-gnu
-internal-externc-isystem /include -internal-externc-isystem /usr/include -O1
-fdebug-compilation-dir /home/su/20180829-gcctk-m64-O3-wrong-232920/delta/clang
-ferror-limit 19 -fmessage-length 108 -fobjc-runtime=gcc
-fdiagnostics-show-option -fcolor-diagnostics -o /tmp/small-47b8d9.o -x c
small.c -faddrsig
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 'Simplify the CFG' on function '@main'
#0 0x000000000267e8ea llvm::sys::PrintStackTrace(llvm::raw_ostream&)
/home/su/software/tmp/polly/llvm/lib/Support/Unix/Signals.inc:494:0
#1 0x000000000267ceea llvm::sys::RunSignalHandlers()
/home/su/software/tmp/polly/llvm/lib/Support/Signals.cpp:67:0
#2 0x000000000267d019 SignalHandler(int)
/home/su/software/tmp/polly/llvm/lib/Support/Unix/Signals.inc:353:0
#3 0x00007f8a3b323330 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x10330)
#4 0x00007f8a3a10bc37 gsignal
/build/eglibc-SvCtMH/eglibc-2.19/signal/../nptl/sysdeps/unix/sysv/linux/raise.c:56:0
#5 0x00007f8a3a10f028 abort
/build/eglibc-SvCtMH/eglibc-2.19/stdlib/abort.c:91:0
#6 0x00007f8a3a104bf6 __assert_fail_base
/build/eglibc-SvCtMH/eglibc-2.19/assert/assert.c:92:0
#7 0x00007f8a3a104ca2 (/lib/x86_64-linux-gnu/libc.so.6+0x2fca2)
#8 0x00000000021dec90 llvm::Value::setName(llvm::Twine const&)
/home/su/software/tmp/polly/llvm/lib/IR/Value.cpp:295:0
#9 0x00000000021dec99 llvm::isa_impl_cl<llvm::Function, llvm::Value
const*>::doit(llvm::Value const*)
/home/su/software/tmp/polly/llvm/include/llvm/Support/Casting.h:106:0
#10 0x00000000021dec99 llvm::isa_impl_wrap<llvm::Function, llvm::Value const*,
llvm::Value const*>::doit(llvm::Value const* const&)
/home/su/software/tmp/polly/llvm/include/llvm/Support/Casting.h:133:0
#11 0x00000000021dec99 llvm::isa_impl_wrap<llvm::Function, llvm::Value* const,
llvm::Value const*>::doit(llvm::Value* const&)
/home/su/software/tmp/polly/llvm/include/llvm/Support/Casting.h:125:0
#12 0x00000000021dec99 isa<llvm::Function, llvm::Value*>
/home/su/software/tmp/polly/llvm/include/llvm/Support/Casting.h:144:0
#13 0x00000000021dec99 dyn_cast<llvm::Function, llvm::Value>
/home/su/software/tmp/polly/llvm/include/llvm/Support/Casting.h:334:0
#14 0x00000000021dec99 llvm::Value::setName(llvm::Twine const&)
/home/su/software/tmp/polly/llvm/lib/IR/Value.cpp:297:0
#15 0x000000000275d0a4 llvm::FoldBranchToCommonDest(llvm::BranchInst*, unsigned
int)
/home/su/software/tmp/polly/llvm/lib/Transforms/Utils/SimplifyCFG.cpp:2711:0
#16 0x000000000275f848 SimplifyCondBranch
/home/su/software/tmp/polly/llvm/lib/Transforms/Utils/SimplifyCFG.cpp:5861:0
#17 0x000000000275f848 run
/home/su/software/tmp/polly/llvm/lib/Transforms/Utils/SimplifyCFG.cpp:6042:0
#18 0x000000000275f848 llvm::simplifyCFG(llvm::BasicBlock*,
llvm::TargetTransformInfo const&, llvm::SimplifyCFGOptions const&,
llvm::SmallPtrSetImpl<llvm::BasicBlock*>*)
/home/su/software/tmp/polly/llvm/lib/Transforms/Utils/SimplifyCFG.cpp:6073:0
#19 0x00000000025e4f17 iterativelySimplifyCFG(llvm::Function&,
llvm::TargetTransformInfo const&, llvm::SimplifyCFGOptions const&)
/home/su/software/tmp/polly/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp:164:0
#20 0x00000000025e517e simplifyFunctionCFG(llvm::Function&,
llvm::TargetTransformInfo const&, llvm::SimplifyCFGOptions const&)
/home/su/software/tmp/polly/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp:178:0
#21 0x00000000021a7077 llvm::FPPassManager::runOnFunction(llvm::Function&)
/home/su/software/tmp/polly/llvm/lib/IR/LegacyPassManager.cpp:1529:0
#22 0x0000000001c1253e RunPassOnSCC
/home/su/software/tmp/polly/llvm/lib/Analysis/CallGraphSCCPass.cpp:167:0
#23 0x0000000001c1253e RunAllPassesOnSCC
/home/su/software/tmp/polly/llvm/lib/Analysis/CallGraphSCCPass.cpp:432:0
#24 0x0000000001c1253e (anonymous
namespace)::CGPassManager::runOnModule(llvm::Module&)
/home/su/software/tmp/polly/llvm/lib/Analysis/CallGraphSCCPass.cpp:487:0
#25 0x00000000021a7848 runOnModule
/home/su/software/tmp/polly/llvm/lib/IR/LegacyPassManager.cpp:1612:0
#26 0x00000000021a7848 llvm::legacy::PassManagerImpl::run(llvm::Module&)
/home/su/software/tmp/polly/llvm/lib/IR/LegacyPassManager.cpp:1716:0
#27 0x000000000284a995 ~PrettyStackTraceString
/home/su/software/tmp/polly/llvm/include/llvm/Support/PrettyStackTrace.h:52:0
#28 0x000000000284a995 (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:845:0
#29 0x000000000284beef ~unique_ptr /usr/include/c++/4.9/bits/unique_ptr.h:235:0
#30 0x000000000284beef 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:1273:0
#31 0x00000000030e40fc ~unique_ptr /usr/include/c++/4.9/bits/unique_ptr.h:235:0
#32 0x00000000030e40fc
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
/home/su/software/tmp/polly/llvm/tools/clang/lib/CodeGen/CodeGenAction.cpp:295:0
#33 0x000000000364700e clang::ParseAST(clang::Sema&, bool, bool)
/home/su/software/tmp/polly/llvm/tools/clang/lib/Parse/ParseAST.cpp:170:0
#34 0x00000000030e3580 clang::CodeGenAction::ExecuteAction()
/home/su/software/tmp/polly/llvm/tools/clang/lib/CodeGen/CodeGenAction.cpp:1045:0
#35 0x0000000002c7b316 clang::FrontendAction::Execute()
/home/su/software/tmp/polly/llvm/tools/clang/lib/Frontend/FrontendAction.cpp:910:0
#36 0x0000000002c4d37e
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
/home/su/software/tmp/polly/llvm/tools/clang/lib/Frontend/CompilerInstance.cpp:962:0
#37 0x0000000002d1c631
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
/home/su/software/tmp/polly/llvm/tools/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:257:0
#38 0x0000000000e5bd40 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*)
/home/su/software/tmp/polly/llvm/tools/clang/tools/driver/cc1_main.cpp:218:0
#39 0x0000000000dd5575 ExecuteCC1Tool
/home/su/software/tmp/polly/llvm/tools/clang/tools/driver/driver.cpp:310:0
#40 0x0000000000dd5575 main
/home/su/software/tmp/polly/llvm/tools/clang/tools/driver/driver.cpp:382:0
#41 0x00007f8a3a0f6f45 __libc_start_main
/build/eglibc-SvCtMH/eglibc-2.19/csu/libc-start.c:321:0
#42 0x0000000000e577e9 _start
(/home/su/software/tmp/polly/llvm_build/bin/clang-6.0+0xe577e9)
clang-6: error: unable to execute command: Aborted (core dumped)
clang-6: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 8.0.0 (http://llvm.org/git/clang.git
b9ef8cb5d0a5501643befcdcf6bef0a3dfa9e205) (llvm/trunk 341010)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/su/bin
clang-6: 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: 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: note: diagnostic msg: /tmp/small-9c7ec0.c
clang-6: note: diagnostic msg: /tmp/small-9c7ec0.sh
clang-6: note: diagnostic msg:
********************
$
---------------------------
int a, b;
int main ()
{
for (; b; b = 1)
{
int d = 0;
if (a)
break;
}
return 0;
}
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