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Description
LLVM ERROR: Cannot select: 0x125818c70: ch = catchret 0x126605238, BasicBlock:ch<if.end.split 0x12681a700>, BasicBlock:ch<_llgo_0 0x1268133e0>
Both on macOS and Ubuntu 24.04, LLVM 20.1.2
Full stack trace:
/opt/homebrew/Cellar/llvm/20.1.2/bin/llc -filetype=obj -o /Users/lijie/Library/Caches/go-build/22/22f0a0faa15fa263adf87306cf3ca84e5080038c54c2937e1cc0a0a5b1f607dc-d.ll.o -mtriple=wasm32-unknown-wasip1 -relocation-model=pic -O2 -exception-model=wasm -wasm-enable-sjlj /Users/lijie/Library/Caches/go-build/22/22f0a0faa15fa263adf87306cf3ca84e5080038c54c2937e1cc0a0a5b1f607dc-d.ll
LLVM ERROR: Cannot select: 0x125818c70: ch = catchret 0x126605238, BasicBlock:ch<if.end.split 0x12681a700>, BasicBlock:ch<_llgo_0 0x1268133e0>
In function: github.com/goplus/llgo/_demo/defer.main
PLEASE submit a bug report to https://github.com/Homebrew/homebrew-core/issues and include the crash backtrace.
Stack dump:
0. Program arguments: /opt/homebrew/Cellar/llvm/20.1.2/bin/llc -filetype=obj -o /Users/lijie/Library/Caches/go-build/3b/3bf96b08f75901240780bf41867077a136f15e8fb74b52ecaf364c6ed9b9398b-d.ll.o -mtriple=wasm32-unknown-wasip1 -relocation-model=pic -O2 -exception-model=wasm -wasm-enable-sjlj /Users/lijie/Library/Caches/go-build/3b/3bf96b08f75901240780bf41867077a136f15e8fb74b52ecaf364c6ed9b9398b-d.ll
1. Running pass 'Function Pass Manager' on module '/Users/lijie/Library/Caches/go-build/3b/3bf96b08f75901240780bf41867077a136f15e8fb74b52ecaf364c6ed9b9398b-d.ll'.
2. Running pass 'WebAssembly Instruction Selection' on function '@"github.com/goplus/llgo/_demo/defer.main"'
#0 0x000000011139b954 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/homebrew/Cellar/llvm/20.1.2/lib/libLLVM.dylib+0x3d83954)
#1 0x000000011139bd40 SignalHandler(int) (/opt/homebrew/Cellar/llvm/20.1.2/lib/libLLVM.dylib+0x3d83d40)
#2 0x000000018e6dede4 (/usr/lib/system/libsystem_platform.dylib+0x180482de4)
#3 0x000000018e6a7f70 (/usr/lib/system/libsystem_pthread.dylib+0x18044bf70)
#4 0x000000018e5b4908 (/usr/lib/system/libsystem_c.dylib+0x180358908)
#5 0x0000000111379838 llvm::report_fatal_error(llvm::StringRef, bool) (/opt/homebrew/Cellar/llvm/20.1.2/lib/libLLVM.dylib+0x3d61838)
#6 0x000000011151438c llvm::SelectionDAGISel::CannotYetSelect(llvm::SDNode*) (/opt/homebrew/Cellar/llvm/20.1.2/lib/libLLVM.dylib+0x3efc38c)
#7 0x000000010e0220ac llvm::SelectionDAGISel::SelectCodeCommon(llvm::SDNode*, unsigned char const*, unsigned int) (/opt/homebrew/Cellar/llvm/20.1.2/lib/libLLVM.dylib+0xa0a0ac)
#8 0x0000000110a9bc78 (anonymous namespace)::WebAssemblyDAGToDAGISel::Select(llvm::SDNode*) (/opt/homebrew/Cellar/llvm/20.1.2/lib/libLLVM.dylib+0x3483c78)
#9 0x000000010e016e88 llvm::SelectionDAGISel::CodeGenAndEmitDAG() (/opt/homebrew/Cellar/llvm/20.1.2/lib/libLLVM.dylib+0x9fee88)
#10 0x000000010e014300 llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) (/opt/homebrew/Cellar/llvm/20.1.2/lib/libLLVM.dylib+0x9fc300)
#11 0x000000010e01255c llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) (/opt/homebrew/Cellar/llvm/20.1.2/lib/libLLVM.dylib+0x9fa55c)
#12 0x000000010e010e10 llvm::SelectionDAGISelLegacy::runOnMachineFunction(llvm::MachineFunction&) (/opt/homebrew/Cellar/llvm/20.1.2/lib/libLLVM.dylib+0x9f8e10)
#13 0x000000010db7de88 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) (/opt/homebrew/Cellar/llvm/20.1.2/lib/libLLVM.dylib+0x565e88)
#14 0x000000010d8dfa24 llvm::FPPassManager::runOnFunction(llvm::Function&) (/opt/homebrew/Cellar/llvm/20.1.2/lib/libLLVM.dylib+0x2c7a24)
#15 0x000000010d8eb6c0 llvm::FPPassManager::runOnModule(llvm::Module&) (/opt/homebrew/Cellar/llvm/20.1.2/lib/libLLVM.dylib+0x2d36c0)
#16 0x000000010d8e1ce4 llvm::legacy::PassManagerImpl::run(llvm::Module&) (/opt/homebrew/Cellar/llvm/20.1.2/lib/libLLVM.dylib+0x2c9ce4)
#17 0x000000010413eca8 main (/opt/homebrew/Cellar/llvm/20.1.2/bin/llc+0x100002ca8)
#18 0x000000018e328274
My input .ll file doesn't contains catchret instruction. When add -debug-pass=Structure -print-after-all, print a very long code that contains catchret instruction.