| Issue |
76852
|
| Summary |
LLVM ERROR: Broken module found, compilation aborted!
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
TatyanaDoubts
|
The bug was found by FuzzGen IR test generator
Run opt with -passes=loop-deletion
https://godbolt.org/z/16zoTYEqx
Test.ll
```
; ModuleID = './reduced.ll'
source_filename = "./reduced.ll"
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-ni:1-p2:32:8:8:32-ni:2"
target triple = "x86_64-unknown-linux-gnu"
define void @wombat() gc "statepoint-example" personality ptr null {
bb:
br i1 false, label %bb1, label %bb4
bb1: ; preds = %bb
br label %bb2
bb2: ; preds = %bb1, %bb2
%invoke = invoke double null(i64 0)
to label %bb2 unwind label %bb3
bb3: ; preds = %bb2
%landingpad = landingpad { ptr, i32 }
cleanup
ret void
bb4: ; preds = %bb
ret void
}
```
Stack dump:
```
0. Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/opt -o /app/output.s -S -passes=loop-deletion <source>
#0 0x0000000003597b18 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x3597b18)
#1 0x000000000359526c SignalHandler(int) Signals.cpp:0:0
#2 0x00007fee38042520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#3 0x00007fee380969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#4 0x00007fee38042476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#5 0x00007fee380287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#6 0x00000000007905f3 llvm::json::operator==(llvm::json::Value const&, llvm::json::Value const&) (.cold) JSON.cpp:0:0
#7 0x00000000034dea68 (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x34dea68)
#8 0x0000000002f6f993 (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x2f6f993)
#9 0x000000000088bbae llvm::detail::PassModel<llvm::Module, llvm::VerifierPass, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x88bbae)
#10 0x0000000002f34d6c llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x2f34d6c)
#11 0x0000000000895cca llvm::runPassPipeline(llvm::StringRef, llvm::Module&, llvm::TargetMachine*, llvm::TargetLibraryInfoImpl*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::StringRef, llvm::ArrayRef<llvm::PassPlugin>, llvm::opt_tool::OutputKind, llvm::opt_tool::VerifierKind, bool, bool, bool, bool, bool, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x895cca)
#12 0x000000000079c483 main (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x79c483)
#13 0x00007fee38029d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#14 0x00007fee38029e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#15 0x000000000088af1e _start (/opt/compiler-explorer/clang-assertions-trunk/bin/opt+0x88af1e)
Program terminated with signal: SIGSEGV
Compiler returned: 139
```
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