| Issue |
125400
|
| Summary |
[SLPVectorizer] Assertion `I->get()->isSame(VL) && "Expected same list of scalars."' failed.
|
| Labels |
llvm:SLPVectorizer,
crash-on-valid
|
| Assignees |
|
| Reporter |
dtcxzyw
|
Reproducer: https://godbolt.org/z/x1je6Wfvc
```
; bin/opt -passes=slp-vectorizer reduced.ll -S
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
define i32 @main() {
entry:
%0 = mul i32 0, 0
%1 = add i32 0, 0
%tobool486.not.i.i = icmp ne i32 %1, 0
%inc487.i.i = zext i1 %tobool486.not.i.i to i64
%tobool486.not.1.i.i = icmp ne i32 %1, 0
%inc487.1.i.i = zext i1 %tobool486.not.1.i.i to i64
%2 = add i32 %0, 0
%tobool486.not.i.2.i = icmp ne i32 %0, 0
%inc487.i.2.i = zext i1 %tobool486.not.i.2.i to i64
%tobool486.not.1.i.2.i = icmp ne i32 %2, 0
%inc487.1.i.2.i = zext i1 %tobool486.not.1.i.2.i to i64
%tobool486.not.2.i.11142.i = icmp ne i32 %0, 0
%inc487.2.i.11143.i = zext i1 %tobool486.not.2.i.11142.i to i64
%3 = add i32 0, 0
%tobool486.not.i.1.1.i = icmp ne i32 %3, 0
%inc487.i.1.1.i = zext i1 %tobool486.not.i.1.1.i to i64
%tobool486.not.1.i.1.1.i = icmp ne i32 %3, 0
%inc487.1.i.1.1.i = zext i1 %tobool486.not.1.i.1.1.i to i64
%tobool486.not.2.i.1.1.i = icmp ne i32 %0, 0
%inc487.2.i.1.1.i = zext i1 %tobool486.not.2.i.1.1.i to i64
%tobool486.not.2.i.2.1.i = icmp ne i32 %0, 0
%inc487.2.i.2.1.i = zext i1 %tobool486.not.2.i.2.1.i to i64
%4 = add i32 0, 0
%tobool486.not.i.21149.i = icmp ne i32 %4, 0
%inc487.i.21150.i = zext i1 %tobool486.not.i.21149.i to i64
%tobool486.not.1.i.21152.i = icmp ne i32 %4, 0
%inc487.1.i.21153.i = zext i1 %tobool486.not.1.i.21152.i to i64
%tobool486.not.2.i.21157.i = icmp ne i32 %0, 0
%inc487.2.i.21158.i = zext i1 %tobool486.not.2.i.21157.i to i64
%inc48746.1.i.1.i = add i64 %inc487.2.i.11143.i, %inc487.2.i.1.1.i
%spec.select.1.i = add i64 %inc48746.1.i.1.i, %inc487.2.i.2.1.i
%inc48746.i.2.i = add i64 %spec.select.1.i, %inc487.2.i.21158.i
%spec.select.2.i = add i64 %inc48746.i.2.i, %inc487.i.i
%inc48746.i.11136.i = add i64 %spec.select.2.i, %inc487.1.i.i
%inc48746.i.1.1.i = add i64 %inc48746.i.11136.i, %inc487.i.2.i
%inc48746.1.i.1.1.i = add i64 %inc48746.i.1.1.i, %inc487.1.i.2.i
%inc48746.1.i.2.1.i = add i64 %inc48746.1.i.1.1.i, %inc487.i.1.1.i
%spec.select.2.1.i = add i64 %inc48746.1.i.2.1.i, %inc487.1.i.1.1.i
%spec.select.21159.i = add i64 %spec.select.2.1.i, %inc487.i.21150.i
%inc48746.i.1.2.i = add i64 %spec.select.21159.i, %inc487.1.i.21153.i
store i64 %inc48746.i.1.2.i, ptr null, align 8
ret i32 0
}
```
```
opt: /root/llvm-project/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp:15169: llvm::Value* llvm::slpvectorizer::BoUpSLP::vectorizeOperand(llvm::slpvectorizer::BoUpSLP::TreeEntry*, unsigned int, bool): Assertion `I->get()->isSame(VL) && "Expected same list of scalars."' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0. Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/opt -o /app/output.s -S -passes=slp-vectorizer <source>
1. Running pass "function(slp-vectorizer)" on module "<source>"
2. Running pass "slp-vectorizer" on function "main"
#0 0x000000000542d548 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x542d548)
#1 0x000000000542af04 SignalHandler(int) Signals.cpp:0:0
#2 0x000072ac2fa42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#3 0x000072ac2fa969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#4 0x000072ac2fa42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#5 0x000072ac2fa287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#6 0x000072ac2fa2871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#7 0x000072ac2fa39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#8 0x0000000004478a89 llvm::slpvectorizer::BoUpSLP::vectorizeOperand(llvm::slpvectorizer::BoUpSLP::TreeEntry*, unsigned int, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4478a89)
#9 0x000000000447936a llvm::slpvectorizer::BoUpSLP::vectorizeTree(llvm::slpvectorizer::BoUpSLP::TreeEntry*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x447936a)
#10 0x0000000004478202 llvm::slpvectorizer::BoUpSLP::vectorizeOperand(llvm::slpvectorizer::BoUpSLP::TreeEntry*, unsigned int, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4478202)
#11 0x0000000004479249 llvm::slpvectorizer::BoUpSLP::vectorizeTree(llvm::slpvectorizer::BoUpSLP::TreeEntry*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4479249)
#12 0x000000000449b566 llvm::slpvectorizer::BoUpSLP::vectorizeTree(llvm::SmallDenseSet<llvm::Value*, 4u, llvm::DenseMapInfo<llvm::Value*, void>> const&, llvm::Instruction*) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x449b566)
#13 0x00000000044b26aa (anonymous namespace)::HorizontalReduction::tryToReduce(llvm::slpvectorizer::BoUpSLP&, llvm::DataLayout const&, llvm::TargetTransformInfo*, llvm::TargetLibraryInfo const&, llvm::AssumptionCache*) SLPVectorizer.cpp:0:0
#14 0x00000000044b3efd llvm::SLPVectorizerPass::vectorizeHorReduction(llvm::PHINode*, llvm::Instruction*, llvm::BasicBlock*, llvm::slpvectorizer::BoUpSLP&, llvm::SmallVectorImpl<llvm::WeakTrackingVH>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x44b3efd)
#15 0x00000000044b872b llvm::SLPVectorizerPass::vectorizeRootInstruction(llvm::PHINode*, llvm::Instruction*, llvm::BasicBlock*, llvm::slpvectorizer::BoUpSLP&) (.constprop.0) SLPVectorizer.cpp:0:0
#16 0x00000000044bd2a6 llvm::SLPVectorizerPass::vectorizeChainsInBlock(llvm::BasicBlock*, llvm::slpvectorizer::BoUpSLP&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x44bd2a6)
#17 0x00000000044c3936 llvm::SLPVectorizerPass::runImpl(llvm::Function&, llvm::ScalarEvolution*, llvm::TargetTransformInfo*, llvm::TargetLibraryInfo*, llvm::AAResults*, llvm::LoopInfo*, llvm::DominatorTree*, llvm::AssumptionCache*, llvm::DemandedBits*, llvm::OptimizationRemarkEmitter*) (.part.0) SLPVectorizer.cpp:0:0
#18 0x00000000044c448b llvm::SLPVectorizerPass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x44c448b)
#19 0x00000000031b1c3e llvm::detail::PassModel<llvm::Function, llvm::SLPVectorizerPass, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x31b1c3e)
#20 0x0000000005228e20 llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x5228e20)
#21 0x0000000000e85a1e llvm::detail::PassModel<llvm::Function, llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function>>, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0xe85a1e)
#22 0x000000000522773b llvm::ModuleToFunctionPassAdaptor::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x522773b)
#23 0x0000000000e84fee llvm::detail::PassModel<llvm::Module, llvm::ModuleToFunctionPassAdaptor, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0xe84fee)
#24 0x0000000005227140 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x5227140)
#25 0x0000000000952cea llvm::runPassPipeline(llvm::StringRef, llvm::Module&, llvm::TargetMachine*, llvm::TargetLibraryInfoImpl*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::StringRef, llvm::ArrayRef<llvm::PassPlugin>, llvm::ArrayRef<std::function<void (llvm::PassBuilder&)>>, llvm::opt_tool::OutputKind, llvm::opt_tool::VerifierKind, bool, bool, bool, bool, bool, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x952cea)
#26 0x000000000094520c optMain (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x94520c)
#27 0x000072ac2fa29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#28 0x000072ac2fa29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#29 0x000000000093cae5 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x93cae5)
Program terminated with signal: SIGSEGV
Compiler returned: 139
```
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