| Issue |
181837
|
| Summary |
[simplifycfg] number of prof branch_weights metadata operands does not correspond to number of succesors
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
TatyanaDoubts
|
To reproduce run opt with the test below, -passes=simplifycfg
[reduced-stripped.ll.zip](https://github.com/user-attachments/files/25368313/reduced-stripped.ll.zip)
Reproducer: https://godbolt.org/z/TfbKohbnP
Stack dump:
```
0. Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/opt -o /app/output.s -S -passes=simplifycfg <source>
1. Running pass "function(simplifycfg<bonus-inst-threshold=1;no-forward-switch-cond;no-switch-range-to-icmp;no-switch-to-arithmetic;no-switch-to-lookup;keep-loops;no-hoist-common-insts;no-hoist-loads-stores-with-cond-faulting;no-sink-common-insts;speculate-blocks;simplify-cond-branch;no-speculate-unpredictables>)" on module "<source>"
2. Running pass "simplifycfg<bonus-inst-threshold=1;no-forward-switch-cond;no-switch-range-to-icmp;no-switch-to-arithmetic;no-switch-to-lookup;keep-loops;no-hoist-common-insts;no-hoist-loads-stores-with-cond-faulting;no-sink-common-insts;speculate-blocks;simplify-cond-branch;no-speculate-unpredictables>" on function "quux"
#0 0x0000000005b8a888 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x5b8a888)
#1 0x0000000005b87764 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#2 0x00007b6109242520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#3 0x00007b61092969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#4 0x00007b6109242476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#5 0x00007b61092287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#6 0x0000000005aba3da (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x5aba3da)
#7 0x0000000005869c8b (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x5869c8b)
#8 0x0000000004e0da68 simplifySwitchWhenUMin(llvm::SwitchInst*, llvm::DomTreeUpdater*) SimplifyCFG.cpp:0:0
#9 0x0000000004e338ef (anonymous namespace)::SimplifyCFGOpt::simplifySwitch(llvm::SwitchInst*, llvm::IRBuilder<llvm::ConstantFolder, llvm::IRBuilderDefaultInserter>&) SimplifyCFG.cpp:0:0
#10 0x0000000004e39b35 llvm::simplifyCFG(llvm::BasicBlock*, llvm::TargetTransformInfo const&, llvm::DomTreeUpdater*, llvm::SimplifyCFGOptions const&, llvm::ArrayRef<llvm::WeakVH>) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4e39b35)
#11 0x0000000004a18ab4 iterativelySimplifyCFG(llvm::Function&, llvm::TargetTransformInfo const&, llvm::DomTreeUpdater*, llvm::SimplifyCFGOptions const&) SimplifyCFGPass.cpp:0:0
#12 0x0000000004a19a14 simplifyFunctionCFGImpl(llvm::Function&, llvm::TargetTransformInfo const&, llvm::DominatorTree*, llvm::SimplifyCFGOptions const&) SimplifyCFGPass.cpp:0:0
#13 0x0000000004a1abe5 simplifyFunctionCFG(llvm::Function&, llvm::TargetTransformInfo const&, llvm::DominatorTree*, llvm::SimplifyCFGOptions const&) SimplifyCFGPass.cpp:0:0
#14 0x0000000004a1ad2a llvm::SimplifyCFGPass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x4a1ad2a)
#15 0x000000000174221e llvm::detail::PassModel<llvm::Function, llvm::SimplifyCFGPass, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x174221e)
#16 0x00000000058f5961 llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x58f5961)
#17 0x0000000000f1420e 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+0xf1420e)
#18 0x00000000058f3f1a llvm::ModuleToFunctionPassAdaptor::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x58f3f1a)
#19 0x000000000096bdfe 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+0x96bdfe)
#20 0x00000000058f38d1 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x58f38d1)
#21 0x0000000000975fba 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, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x975fba)
#22 0x000000000096a068 optMain (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x96a068)
#23 0x00007b6109229d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#24 0x00007b6109229e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#25 0x0000000000960ce5 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x960ce5)
Program terminated with signal: SIGSEGV
Compiler returned: 139
```
[reduced-stripped.ll.zip](https://github.com/user-attachments/files/25368310/reduced-stripped.ll.zip)
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