[llvm-bugs] [Bug 28155] New: crash at -Os and above in both 32-bit and 64-bit modes on x86_64-linux-gnu with "-g" (Assertion `TargetRegisterInfo::isVirtualRegister(VReg) && "Not a vreg?"' failed)
via llvm-bugs
llvm-bugs at lists.llvm.org
Wed Jun 15 18:24:01 PDT 2016
https://llvm.org/bugs/show_bug.cgi?id=28155
Bug ID: 28155
Summary: crash at -Os and above in both 32-bit and 64-bit modes
on x86_64-linux-gnu with "-g" (Assertion
`TargetRegisterInfo::isVirtualRegister(VReg) && "Not a
vreg?"' failed)
Product: clang
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: unassignedclangbugs at nondot.org
Reporter: chengniansun at gmail.com
CC: llvm-bugs at lists.llvm.org
Classification: Unclassified
$: clang-trunk -v
clang version 3.9.0 (trunk 272796)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/bin
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/5.3.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
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/4.9.2
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9.3
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.3.0
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
$: clang-trunk -w -g -O3 small.c
clang-3.9:
/tmp/llvm-builder/llvm-source-trunk/lib/CodeGen/SelectionDAG/InstrEmitter.cpp:323:
void llvm::InstrEmitter::AddRegisterOperand(llvm::MachineInstrBuilder&,
llvm::SDValue, unsigned int, const llvm::MCInstrDesc*,
llvm::DenseMap<llvm::SDValue, unsigned int>&, bool, bool, bool): Assertion
`TargetRegisterInfo::isVirtualRegister(VReg) && "Not a vreg?"' failed.
#0 0x0000000001b595a5 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/usr/local/clang-trunk/bin/clang-3.9+0x1b595a5)
#1 0x0000000001b57206 llvm::sys::RunSignalHandlers()
(/usr/local/clang-trunk/bin/clang-3.9+0x1b57206)
#2 0x0000000001b57431 SignalHandler(int)
(/usr/local/clang-trunk/bin/clang-3.9+0x1b57431)
#3 0x00007ffbc287c330 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x10330)
#4 0x00007ffbc1a9ac37 gsignal
/build/eglibc-oGUzwX/eglibc-2.19/signal/../nptl/sysdeps/unix/sysv/linux/raise.c:56:0
#5 0x00007ffbc1a9e028 abort
/build/eglibc-oGUzwX/eglibc-2.19/stdlib/abort.c:91:0
#6 0x00007ffbc1a93bf6 __assert_fail_base
/build/eglibc-oGUzwX/eglibc-2.19/assert/assert.c:92:0
#7 0x00007ffbc1a93ca2 (/lib/x86_64-linux-gnu/libc.so.6+0x2fca2)
#8 0x000000000222a4ec
llvm::InstrEmitter::AddRegisterOperand(llvm::MachineInstrBuilder&,
llvm::SDValue, unsigned int, llvm::MCInstrDesc const*,
llvm::DenseMap<llvm::SDValue, unsigned int, llvm::DenseMapInfo<llvm::SDValue>,
llvm::detail::DenseMapPair<llvm::SDValue, unsigned int> >&, bool, bool, bool)
(/usr/local/clang-trunk/bin/clang-3.9+0x222a4ec)
#9 0x000000000222ab0c
llvm::InstrEmitter::AddOperand(llvm::MachineInstrBuilder&, llvm::SDValue,
unsigned int, llvm::MCInstrDesc const*, llvm::DenseMap<llvm::SDValue, unsigned
int, llvm::DenseMapInfo<llvm::SDValue>,
llvm::detail::DenseMapPair<llvm::SDValue, unsigned int> >&, bool, bool, bool)
(/usr/local/clang-trunk/bin/clang-3.9+0x222ab0c)
#10 0x000000000222b522 llvm::InstrEmitter::EmitDbgValue(llvm::SDDbgValue*,
llvm::DenseMap<llvm::SDValue, unsigned int, llvm::DenseMapInfo<llvm::SDValue>,
llvm::detail::DenseMapPair<llvm::SDValue, unsigned int> >&)
(/usr/local/clang-trunk/bin/clang-3.9+0x222b522)
#11 0x0000000002223403 ProcessSDDbgValues(llvm::SDNode*, llvm::SelectionDAG*,
llvm::InstrEmitter&, llvm::SmallVectorImpl<std::pair<unsigned int,
llvm::MachineInstr*> >&, llvm::DenseMap<llvm::SDValue, unsigned int,
llvm::DenseMapInfo<llvm::SDValue>, llvm::detail::DenseMapPair<llvm::SDValue,
unsigned int> >&, unsigned int) [clone .part.364]
(/usr/local/clang-trunk/bin/clang-3.9+0x2223403)
#12 0x0000000002224117 ProcessSourceNode(llvm::SDNode*, llvm::SelectionDAG*,
llvm::InstrEmitter&, llvm::DenseMap<llvm::SDValue, unsigned int,
llvm::DenseMapInfo<llvm::SDValue>, llvm::detail::DenseMapPair<llvm::SDValue,
unsigned int> >&, llvm::SmallVectorImpl<std::pair<unsigned int,
llvm::MachineInstr*> >&, llvm::SmallSet<unsigned int, 8u, std::less<unsigned
int> >&) (/usr/local/clang-trunk/bin/clang-3.9+0x2224117)
#13 0x0000000002227094
llvm::ScheduleDAGSDNodes::EmitSchedule(llvm::MachineInstrBundleIterator<llvm::MachineInstr>&)
(/usr/local/clang-trunk/bin/clang-3.9+0x2227094)
#14 0x00000000021b099a llvm::SelectionDAGISel::CodeGenAndEmitDAG()
(/usr/local/clang-trunk/bin/clang-3.9+0x21b099a)
#15 0x00000000021b8cf6
llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&)
(/usr/local/clang-trunk/bin/clang-3.9+0x21b8cf6)
#16 0x00000000021bae27
llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&)
(/usr/local/clang-trunk/bin/clang-3.9+0x21bae27)
#17 0x0000000001218ea4 (anonymous
namespace)::X86DAGToDAGISel::runOnMachineFunction(llvm::MachineFunction&)
(/usr/local/clang-trunk/bin/clang-3.9+0x1218ea4)
#18 0x00000000015886a4
llvm::MachineFunctionPass::runOnFunction(llvm::Function&)
(/usr/local/clang-trunk/bin/clang-3.9+0x15886a4)
#19 0x00000000017ee733 llvm::FPPassManager::runOnFunction(llvm::Function&)
(/usr/local/clang-trunk/bin/clang-3.9+0x17ee733)
#20 0x00000000017eeaeb llvm::FPPassManager::runOnModule(llvm::Module&)
(/usr/local/clang-trunk/bin/clang-3.9+0x17eeaeb)
#21 0x00000000017eedff llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/usr/local/clang-trunk/bin/clang-3.9+0x17eedff)
#22 0x0000000001c959da clang::EmitBackendOutput(clang::DiagnosticsEngine&,
clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions
const&, llvm::DataLayout const&, llvm::Module*, clang::BackendAction,
llvm::raw_pwrite_stream*) (/usr/local/clang-trunk/bin/clang-3.9+0x1c959da)
#23 0x000000000226a956
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
(/usr/local/clang-trunk/bin/clang-3.9+0x226a956)
#24 0x00000000025a29cb clang::ParseAST(clang::Sema&, bool, bool)
(/usr/local/clang-trunk/bin/clang-3.9+0x25a29cb)
#25 0x000000000226ad1e clang::CodeGenAction::ExecuteAction()
(/usr/local/clang-trunk/bin/clang-3.9+0x226ad1e)
#26 0x0000000001f98da6 clang::FrontendAction::Execute()
(/usr/local/clang-trunk/bin/clang-3.9+0x1f98da6)
#27 0x0000000001f7440e
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/usr/local/clang-trunk/bin/clang-3.9+0x1f7440e)
#28 0x000000000201dc9c
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/usr/local/clang-trunk/bin/clang-3.9+0x201dc9c)
#29 0x0000000000a174f8 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/usr/local/clang-trunk/bin/clang-3.9+0xa174f8)
#30 0x00000000009ca627 main (/usr/local/clang-trunk/bin/clang-3.9+0x9ca627)
#31 0x00007ffbc1a85f45 __libc_start_main
/build/eglibc-oGUzwX/eglibc-2.19/csu/libc-start.c:321:0
#32 0x0000000000a134c4 _start (/usr/local/clang-trunk/bin/clang-3.9+0xa134c4)
Stack dump:
0. Program arguments: /usr/local/clang-trunk/bin/clang-3.9 -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
-momit-leaf-frame-pointer -dwarf-column-info -debug-info-kind=limited
-dwarf-version=4 -debugger-tuning=gdb -resource-dir
/usr/local/clang-trunk/bin/../lib/clang/3.9.0 -c-isystem . -c-isystem
/usr/local/include/csmith-2.2.0/ -internal-isystem /usr/local/include
-internal-isystem /usr/local/clang-trunk/bin/../lib/clang/3.9.0/include
-internal-externc-isystem /usr/include/x86_64-linux-gnu
-internal-externc-isystem /include -internal-externc-isystem /usr/include -O3
-w -fdebug-compilation-dir
/home/cnsun/ramdisk/reduction/20160615-clang-trunk-m32-g-O3-build-131611/delta
-ferror-limit 19 -fmessage-length 118 -fobjc-runtime=gcc
-fdiagnostics-show-option -fcolor-diagnostics -vectorize-loops -vectorize-slp
-o /tmp/small-6bd7c0.o -x c small.c
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module 'small.c'.
4. Running pass 'X86 DAG->DAG Instruction Selection' on function '@main'
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 272796)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/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/small-f378da.c
clang-3.9: note: diagnostic msg: /tmp/small-f378da.sh
clang-3.9: note: diagnostic msg:
********************
$:
$: cat small.c
char a;
int volatile e;
short c, i;
short *d;
char fn1(int e) { return -a; }
short fn2(short p1, short p2) { return p1 * p2; }
int main () {
short g;
i = fn2(a, e);
*d = i;
g = fn2(c, 0 >= fn1(e));
if (g)
e;
return 0;
}
$:
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