[llvm] [SandboxIR] Boilerplate code (PR #95814)

[Mikael Holmén via llvm-commits]

mikaelholmen wrote:

Hi,
I've no idea what to be expected but I noticed that
```
opt -passes=sandbox-vectorizer bbi-98907.ll -o /dev/null
```
crashes with
```
opt: ../lib/SandboxIR/SandboxIR.cpp:2542: llvm::sandboxir::Value *llvm::sandboxir::Context::registerValue(std::unique_ptr<Value> &&): Assertion `Pair.second && "Already exists!"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.	Program arguments: build-all/bin/opt -passes=sandbox-vectorizer bbi-98907.ll -o /dev/null
1.	Running pass "function(sandbox-vectorizer)" on module "bbi-98907.ll"
2.	Running pass "sandbox-vectorizer" on function "get"
 #0 0x000055ee9d6fb447 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (build-all/bin/opt+0x419b447)
 #1 0x000055ee9d6f8f2e llvm::sys::RunSignalHandlers() (build-all/bin/opt+0x4198f2e)
 #2 0x000055ee9d6fbc6f SignalHandler(int) Signals.cpp:0:0
 #3 0x00007f128e35fcf0 __restore_rt (/lib64/libpthread.so.0+0x12cf0)
 #4 0x00007f128bf18acf raise (/lib64/libc.so.6+0x4eacf)
 #5 0x00007f128beebea5 abort (/lib64/libc.so.6+0x21ea5)
 #6 0x00007f128beebd79 _nl_load_domain.cold.0 (/lib64/libc.so.6+0x21d79)
 #7 0x00007f128bf11426 (/lib64/libc.so.6+0x47426)
 #8 0x000055eea0de61e7 llvm::sandboxir::Context::registerValue(std::unique_ptr<llvm::sandboxir::Value, std::default_delete<llvm::sandboxir::Value>>&&) (build-all/bin/opt+0x78861e7)
 #9 0x000055eea0de7971 llvm::sandboxir::Context::createBasicBlock(llvm::BasicBlock*) (build-all/bin/opt+0x7887971)
#10 0x000055eea0de8861 llvm::sandboxir::Context::createFunction(llvm::Function*) (build-all/bin/opt+0x7888861)
#11 0x000055ee9f394dab llvm::SandboxVectorizerPass::runImpl(llvm::Function&) (build-all/bin/opt+0x5e34dab)
#12 0x000055ee9f3949fc llvm::SandboxVectorizerPass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (build-all/bin/opt+0x5e349fc)
#13 0x000055ee9f249f4d llvm::detail::PassModel<llvm::Function, llvm::SandboxVectorizerPass, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) PassBuilder.cpp:0:0
#14 0x000055ee9d904d6a llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (build-all/bin/opt+0x43a4d6a)
#15 0x000055ee9ea8a2dd llvm::detail::PassModel<llvm::Function, llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function>>, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) PassBuilderPipelines.cpp:0:0
#16 0x000055ee9d909901 llvm::ModuleToFunctionPassAdaptor::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (build-all/bin/opt+0x43a9901)
#17 0x000055ee9ea837fd llvm::detail::PassModel<llvm::Module, llvm::ModuleToFunctionPassAdaptor, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) PassBuilderPipelines.cpp:0:0
#18 0x000055ee9d9039fa llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (build-all/bin/opt+0x43a39fa)
#19 0x000055ee9ea2d1fb 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) (build-all/bin/opt+0x54cd1fb)
#20 0x000055ee9d6c2bbd optMain (build-all/bin/opt+0x4162bbd)
#21 0x00007f128bf04d85 __libc_start_main (/lib64/libc.so.6+0x3ad85)
#22 0x000055ee9d6bc72e _start (build-all/bin/opt+0x415c72e)
Abort (core dumped)
```
[bbi-98907.ll.gz](https://github.com/user-attachments/files/16927359/bbi-98907.ll.gz)


https://github.com/llvm/llvm-project/pull/95814