[llvm-bugs] [Bug 50050] New: clang crashes under O2 ~ Os at llvm/lib/IR/Instructions.cpp:2113: bool isSingleSourceMaskImpl(llvm::ArrayRef<int>, int): Assertion `I >= 0 && I < (NumOpElts * 2) && "Out-of-bounds shuffle mask element"' failed
via llvm-bugs
llvm-bugs at lists.llvm.org
Tue Apr 20 19:16:21 PDT 2021
https://bugs.llvm.org/show_bug.cgi?id=50050
Bug ID: 50050
Summary: clang crashes under O2 ~ Os at
llvm/lib/IR/Instructions.cpp:2113: bool
isSingleSourceMaskImpl(llvm::ArrayRef<int>, int):
Assertion `I >= 0 && I < (NumOpElts * 2) &&
"Out-of-bounds shuffle mask element"' failed
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Scalar Optimizations
Assignee: unassignedbugs at nondot.org
Reporter: haoxintu at gmail.com
CC: llvm-bugs at lists.llvm.org
Hi all.
$cat small.c
#include <stdint.h>
int a, b, c;
void foo() {
int8_t *e = a;
int64_t f;
int64_t *g;
if (0) {
uint16_t i;
for (;; g++) {
int64_t *k = b;
uint32_t j;
f = c;
for (j = 3; j; j++) {
int64_t **m = &k;
uint16_t *l = &i;
for (*l = 7; l;) {
*l || (a *= *k);
g ?: (b = k);
n:
f || (m -= *e);
}
}
}
}
goto n;
}
$clang -w -O2 small.c (same with -O3 and -Os)
clang-13:
/home/haoxin/haoxin-data/dut-research/compilers/llvm-project/llvm/lib/IR/Instructions.cpp:2113:
bool isSingleSourceMaskImpl(llvm::ArrayRef<int>, int): Assertion `I >= 0 && I <
(NumOpElts * 2) && "Out-of-bounds shuffle mask element"' failed.
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash
backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments:
/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13
-cc1 -triple x86_64-unknown-linux-gnu -emit-obj --mrelax-relocations
-disable-free -main-file-name small.c -mrelocation-model static
-mframe-pointer=none -fmath-errno -fno-rounding-math -mconstructor-aliases
-munwind-tables -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb
-fcoverage-compilation-dir=/home/haoxin/haoxin-data/dut-research/random-compiler-testing/random-test/ccg-20210420/10
-resource-dir
/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/lib/clang/13.0.0
-c-isystem /usr/local/include/csmith-2.3.0 -cxx-isystem
/usr/local/include/csmith-2.3.0 -internal-isystem
/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/lib/clang/13.0.0/include
-internal-isystem /usr/local/include -internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/8/../../../../x86_64-linux-gnu/include
-internal-externc-isystem /usr/include/x86_64-linux-gnu
-internal-externc-isystem /include -internal-externc-isystem /usr/include -O2
-w
-fdebug-compilation-dir=/home/haoxin/haoxin-data/dut-research/random-compiler-testing/random-test/ccg-20210420/10
-ferror-limit 19 -fgnuc-version=4.2.1 -fcolor-diagnostics -vectorize-loops
-vectorize-slp -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /tmp/small-0b2408.o
-x c small.c
1. <eof> parser at end of file
2. Optimizer
#0 0x000055c34ed5529c llvm::sys::PrintStackTrace(llvm::raw_ostream&, int)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x35ac29c)
#1 0x000055c34ed530a4 llvm::sys::RunSignalHandlers()
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x35aa0a4)
#2 0x000055c34ed53213 SignalHandler(int) Signals.cpp:0:0
#3 0x00007faf59d2a980 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x12980)
#4 0x00007faf58952fb7 raise
/build/glibc-S9d2JN/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0
#5 0x00007faf58954921 abort /build/glibc-S9d2JN/glibc-2.27/stdlib/abort.c:81:0
#6 0x00007faf5894448a __assert_fail_base
/build/glibc-S9d2JN/glibc-2.27/assert/assert.c:89:0
#7 0x00007faf58944502 (/lib/x86_64-linux-gnu/libc.so.6+0x30502)
#8 0x000055c34e4e3e6f
llvm::ShuffleVectorInst::isSingleSourceMask(llvm::ArrayRef<int>)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x2d3ae6f)
#9 0x000055c34e4e40a1
llvm::ShuffleVectorInst::isSelectMask(llvm::ArrayRef<int>)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x2d3b0a1)
#10 0x000055c34ef6f250
llvm::slpvectorizer::BoUpSLP::isGatherShuffledEntry(llvm::slpvectorizer::BoUpSLP::TreeEntry
const*, llvm::SmallVectorImpl<int>&,
llvm::SmallVectorImpl<llvm::slpvectorizer::BoUpSLP::TreeEntry const*>&)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x37c6250)
#11 0x000055c34ef77ad1
llvm::slpvectorizer::BoUpSLP::getEntryCost(llvm::slpvectorizer::BoUpSLP::TreeEntry*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x37cead1)
#12 0x000055c34ef8d1eb llvm::slpvectorizer::BoUpSLP::getTreeCost()
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x37e41eb)
#13 0x000055c34ef90325
llvm::SLPVectorizerPass::tryToVectorizeList(llvm::ArrayRef<llvm::Value*>,
llvm::slpvectorizer::BoUpSLP&, bool, llvm::ArrayRef<llvm::Value*>)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x37e7325)
#14 0x000055c34ef95fda
llvm::SLPVectorizerPass::vectorizeChainsInBlock(llvm::BasicBlock*,
llvm::slpvectorizer::BoUpSLP&)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x37ecfda)
#15 0x000055c34ef972ce llvm::SLPVectorizerPass::runImpl(llvm::Function&,
llvm::ScalarEvolution*, llvm::TargetTransformInfo*, llvm::TargetLibraryInfo*,
llvm::AAResults*, llvm::LoopInfo*, llvm::DominatorTree*,
llvm::AssumptionCache*, llvm::DemandedBits*, llvm::OptimizationRemarkEmitter*)
(.part.1865) SLPVectorizer.cpp:0:0
#16 0x000055c34ef97aed llvm::SLPVectorizerPass::run(llvm::Function&,
llvm::AnalysisManager<llvm::Function>&)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x37eeaed)
#17 0x000055c34fd21ae1 llvm::detail::PassModel<llvm::Function,
llvm::SLPVectorizerPass, llvm::PreservedAnalyses,
llvm::AnalysisManager<llvm::Function> >::run(llvm::Function&,
llvm::AnalysisManager<llvm::Function>&)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x4578ae1)
#18 0x000055c34e55ec75 llvm::PassManager<llvm::Function,
llvm::AnalysisManager<llvm::Function> >::run(llvm::Function&,
llvm::AnalysisManager<llvm::Function>&)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x2db5c75)
#19 0x000055c34cbbeb91 llvm::detail::PassModel<llvm::Function,
llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function> >,
llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Function>
>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x1415b91)
#20 0x000055c34e55e710 llvm::ModuleToFunctionPassAdaptor::run(llvm::Module&,
llvm::AnalysisManager<llvm::Module>&)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x2db5710)
#21 0x000055c34cbbf1e1 llvm::detail::PassModel<llvm::Module,
llvm::ModuleToFunctionPassAdaptor, llvm::PreservedAnalyses,
llvm::AnalysisManager<llvm::Module> >::run(llvm::Module&,
llvm::AnalysisManager<llvm::Module>&)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x14161e1)
#22 0x000055c34e55db35 llvm::PassManager<llvm::Module,
llvm::AnalysisManager<llvm::Module> >::run(llvm::Module&,
llvm::AnalysisManager<llvm::Module>&)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x2db4b35)
#23 0x000055c34f02afe1 (anonymous
namespace)::EmitAssemblyHelper::EmitAssemblyWithNewPassManager(clang::BackendAction,
std::unique_ptr<llvm::raw_pwrite_stream,
std::default_delete<llvm::raw_pwrite_stream> >) BackendUtil.cpp:0:0
#24 0x000055c34f02f79d 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> >)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x388679d)
#25 0x000055c34fcc2256
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x4519256)
#26 0x000055c350833619 clang::ParseAST(clang::Sema&, bool, bool)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x508a619)
#27 0x000055c34fcc1048 clang::CodeGenAction::ExecuteAction()
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x4518048)
#28 0x000055c34f64ae49 clang::FrontendAction::Execute()
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x3ea1e49)
#29 0x000055c34f5e93f1
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x3e403f1)
#30 0x000055c34f712ac0
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x3f69ac0)
#31 0x000055c34c927d7d cc1_main(llvm::ArrayRef<char const*>, char const*,
void*)
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x117ed7d)
#32 0x000055c34c9241f7 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
driver.cpp:0:0
#33 0x000055c34c851114 main
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x10a8114)
#34 0x00007faf58935bf7 __libc_start_main
/build/glibc-S9d2JN/glibc-2.27/csu/../csu/libc-start.c:344:0
#35 0x000055c34c923c5a _start
(/media/haoxin/SeagateData/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin/clang-13+0x117ac5a)
clang-13: error: unable to execute command: Aborted (core dumped)
clang-13: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 13.0.0 (https://github.com/llvm/llvm-project
1cb8a9d595713fc1de1195349f200f2717d35667)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir:
/home/haoxin/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin
clang-13: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-13: note: diagnostic msg: /tmp/small-71df4b.c
clang-13: note: diagnostic msg: /tmp/small-71df4b.sh
clang-13: note: diagnostic msg:
********************
$clang -v
clang version 13.0.0 (https://github.com/llvm/llvm-project
1cb8a9d595713fc1de1195349f200f2717d35667)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir:
/home/haoxin/haoxin-data/dut-research/compilers/llvm-project/build-20210420/bin
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/6.5.0
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/7
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/7.5.0
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.5.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Candidate multilib: .;@m64
Selected multilib: .;@m64
Thanks,
Haoxin
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