[llvm-bugs] [Bug 28330] New: crash at -O3 with -g on x86_64-linux-gnu in both 32-bit and 64-bit modes (Assertion `VectorizedValue && "Need to have a vectorized tree node"' failed.)
via llvm-bugs
llvm-bugs at lists.llvm.org
Mon Jun 27 07:38:14 PDT 2016
https://llvm.org/bugs/show_bug.cgi?id=28330
Bug ID: 28330
Summary: crash at -O3 with -g on x86_64-linux-gnu in both
32-bit and 64-bit modes (Assertion `VectorizedValue &&
"Need to have a vectorized tree node"' 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 273815)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/bin
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/4.8
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
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 -O3 small.c
$ clang-trunk -O3 -g small.c
clang-3.9:
/tmp/llvm-builder/llvm-source-trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp:4199:
llvm::Value* HorizontalReduction::emitReduction(llvm::Value*,
llvm::IRBuilder<>&): Assertion `VectorizedValue && "Need to have a vectorized
tree node"' failed.
#0 0x0000000001b6f935 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
(/usr/local/clang-trunk/bin/clang-3.9+0x1b6f935)
#1 0x0000000001b6d596 llvm::sys::RunSignalHandlers()
(/usr/local/clang-trunk/bin/clang-3.9+0x1b6d596)
#2 0x0000000001b6d7c1 SignalHandler(int)
(/usr/local/clang-trunk/bin/clang-3.9+0x1b6d7c1)
#3 0x00007fdfdda79330 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x10330)
#4 0x00007fdfdc86ac37 gsignal
/build/eglibc-oGUzwX/eglibc-2.19/signal/../nptl/sysdeps/unix/sysv/linux/raise.c:56:0
#5 0x00007fdfdc86e028 abort
/build/eglibc-oGUzwX/eglibc-2.19/stdlib/abort.c:91:0
#6 0x00007fdfdc863bf6 __assert_fail_base
/build/eglibc-oGUzwX/eglibc-2.19/assert/assert.c:92:0
#7 0x00007fdfdc863ca2 (/lib/x86_64-linux-gnu/libc.so.6+0x2fca2)
#8 0x0000000001c53501 HorizontalReduction::emitReduction(llvm::Value*,
llvm::IRBuilder<llvm::ConstantFolder, llvm::IRBuilderDefaultInserter>&)
(/usr/local/clang-trunk/bin/clang-3.9+0x1c53501)
#9 0x0000000001c634ac
HorizontalReduction::tryToReduce(llvm::slpvectorizer::BoUpSLP&,
llvm::TargetTransformInfo*) (/usr/local/clang-trunk/bin/clang-3.9+0x1c634ac)
#10 0x0000000001c63c3e canMatchHorizontalReduction(llvm::PHINode*,
llvm::BinaryOperator*, llvm::slpvectorizer::BoUpSLP&,
llvm::TargetTransformInfo*, unsigned int) [clone .part.1029]
(/usr/local/clang-trunk/bin/clang-3.9+0x1c63c3e)
#11 0x0000000001c645be
llvm::SLPVectorizerPass::vectorizeChainsInBlock(llvm::BasicBlock*,
llvm::slpvectorizer::BoUpSLP&) (/usr/local/clang-trunk/bin/clang-3.9+0x1c645be)
#12 0x0000000001c68775 llvm::SLPVectorizerPass::runImpl(llvm::Function&,
llvm::ScalarEvolution*, llvm::TargetTransformInfo*, llvm::TargetLibraryInfo*,
llvm::AAResults*, llvm::LoopInfo*, llvm::DominatorTree*,
llvm::AssumptionCache*, llvm::DemandedBits*) [clone .part.1038]
(/usr/local/clang-trunk/bin/clang-3.9+0x1c68775)
#13 0x0000000001c6946d SLPVectorizer::runOnFunction(llvm::Function&)
(/usr/local/clang-trunk/bin/clang-3.9+0x1c6946d)
#14 0x0000000001804e23 llvm::FPPassManager::runOnFunction(llvm::Function&)
(/usr/local/clang-trunk/bin/clang-3.9+0x1804e23)
#15 0x00000000018051db llvm::FPPassManager::runOnModule(llvm::Module&)
(/usr/local/clang-trunk/bin/clang-3.9+0x18051db)
#16 0x00000000018054ef llvm::legacy::PassManagerImpl::run(llvm::Module&)
(/usr/local/clang-trunk/bin/clang-3.9+0x18054ef)
#17 0x0000000001cac378 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+0x1cac378)
#18 0x00000000022873a6
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
(/usr/local/clang-trunk/bin/clang-3.9+0x22873a6)
#19 0x00000000025c4dfb clang::ParseAST(clang::Sema&, bool, bool)
(/usr/local/clang-trunk/bin/clang-3.9+0x25c4dfb)
#20 0x000000000228776e clang::CodeGenAction::ExecuteAction()
(/usr/local/clang-trunk/bin/clang-3.9+0x228776e)
#21 0x0000000001fb1126 clang::FrontendAction::Execute()
(/usr/local/clang-trunk/bin/clang-3.9+0x1fb1126)
#22 0x0000000001f8c4ce
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/usr/local/clang-trunk/bin/clang-3.9+0x1f8c4ce)
#23 0x00000000020360ec
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/usr/local/clang-trunk/bin/clang-3.9+0x20360ec)
#24 0x0000000000a1fd58 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/usr/local/clang-trunk/bin/clang-3.9+0xa1fd58)
#25 0x00000000009d2237 main (/usr/local/clang-trunk/bin/clang-3.9+0x9d2237)
#26 0x00007fdfdc855f45 __libc_start_main
/build/eglibc-oGUzwX/eglibc-2.19/csu/libc-start.c:321:0
#27 0x0000000000a1bd24 _start (/usr/local/clang-trunk/bin/clang-3.9+0xa1bd24)
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
-fdebug-compilation-dir
/home/cnsun/ramdisk/reduction/20160626-clang-trunk-m32-g-O3-build-133308/delta
-ferror-limit 19 -fmessage-length 238 -fobjc-runtime=gcc
-fdiagnostics-show-option -fcolor-diagnostics -vectorize-loops -vectorize-slp
-o /tmp/small-d22613.o -x c small.c
1. <eof> parser at end of file
2. Per-module optimization passes
3. Running pass 'Function Pass Manager' on module 'small.c'.
4. Running pass 'SLP Vectorizer' 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 273815)
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-555624.c
clang-3.9: note: diagnostic msg: /tmp/small-555624.sh
clang-3.9: note: diagnostic msg:
********************
$
$ cat small.c
char a, c;
char b[80];
int e, g, i;
short f, h, k;
void fn2() {
for (; e; e++) {
for (a = 0; a <= 7; a++)
if (b[a])
for (;;)
;
}
}
void fn3() {
int l, j;
for (; i; i++) {
for (h = 1; h <= 9; h++) {
for (a = 2; a <= 9; a++) {
for (k = 1; k <= 9; k++) {
for (l = 0; l <= 9; l++) {
int m = 1;
int n[10] = {3, 0, 2, 2, 0, 3, 0, 2, 2};
j = 1;
if (f)
continue;
if (c)
break;
--g;
}
if (b[h])
break;
}
}
}
}
}
static int fn1() {
fn3();
fn2();
return 0;
}
static short fn4() { return fn1(); }
int main() {
return fn4();
}
$
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