| Issue |
173355
|
| Summary |
opt crashes
|
| Labels |
crash,
llvm
|
| Assignees |
|
| Reporter |
Emilyaxe
|
When running opt on the following IR, opt crashes.
I am not sure whether this is a valid case. If using opt in this way is not appropriate, I am open to closing this issue.
godbolt: https://godbolt.org/z/873edWGzK
llvm version 50ae726bb3498
test.ll
```
define amdgpu_kernel void @hamming_search_inner_loop1() {
entry:
br label %end
end: ; preds = %entry
ret void
}
define amdgpu_kernel void @hamming_search_inner_loop2() {
entry:
br label %end
end: ; preds = %entry
ret void
}
```
commads
./bin/opt test.ll -passes=mergefunc -S
stacktrace
```
calling convention does not permit calls
tail call amdgpu_kernel void @hamming_search_inner_loop1()
LLVM ERROR: Broken module found, compilation aborted!
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and instructions to reproduce the bug.
Stack dump:
0. Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/opt -o /app/output.s -S -passes=mergefunc -S <source>
1. Running pass "verify" on module "<source>"
#0 0x0000000005a44d98 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x5a44d98)
#1 0x0000000005a41c44 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#2 0x00007bd9c3c42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#3 0x00007bd9c3c969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#4 0x00007bd9c3c42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#5 0x00007bd9c3c287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#6 0x00000000008339a1 llvm::json::operator==(llvm::json::Value const&, llvm::json::Value const&) (.cold) JSON.cpp:0:0
#7 0x0000000005979301 (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x5979301)
#8 0x0000000005862a88 (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x5862a88)
#9 0x000000000097d40e llvm::detail::PassModel<llvm::Module, llvm::VerifierPass, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x97d40e)
#10 0x000000000581f0b1 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x581f0b1)
#11 0x000000000098776a 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+0x98776a)
#12 0x000000000097b5e8 optMain (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x97b5e8)
#13 0x00007bd9c3c29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#14 0x00007bd9c3c29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#15 0x0000000000972085 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x972085)
Program terminated with signal: SIGSEGV
Compiler returned: 139
```
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