| Issue |
132844
|
| Summary |
llc: Assertion `(TLI.getTypeAction(*DAG.getContext(), Op.getValueType()) == TargetLowering::TypeLegal || Op.getOpcode() == ISD::TargetConstant || Op.getOpcode() == ISD::Register) && "Unexpected illegal type!"' failed.
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
Zentrik
|
Following IR triggers on assertion on HEAD when compiling with `llc`. This is a recent regression.
```llvm
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"
target triple = "x86_64-unknown-linux-gnu"
define swiftcc { ptr, i8 } @julia_try_compute_fieldidx_stmt_92847.3(<4 x ptr> %0, <4 x ptr> %1) #0 {
%3 = alloca [35 x ptr], i32 0, align 16
%4 = load <4 x ptr>, ptr null, align 8
%5 = getelementptr i8, ptr %3, i64 216
%6 = extractelement <4 x ptr> %4, i64 3
store ptr %6, ptr %5, align 8
%7 = getelementptr i8, ptr %3, i64 208
%8 = extractelement <4 x ptr> %0, i64 0
store ptr %8, ptr %7, align 8
%9 = getelementptr i8, ptr %3, i64 200
%10 = extractelement <4 x ptr> %0, i64 3
store ptr %10, ptr %9, align 8
%11 = getelementptr i8, ptr %3, i64 192
%12 = extractelement <4 x ptr> %1, i64 0
store ptr %12, ptr %11, align 8
ret { ptr, i8 } zeroinitializer
}
attributes #0 = { "target-cpu"="x86-64-v4" }
```
```
llc: /root/llvm-project/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp:969: void {anonymous}::SelectionDAGLegalize::LegalizeOp(llvm::SDNode*): Assertion `(TLI.getTypeAction(*DAG.getContext(), Op.getValueType()) == TargetLowering::TypeLegal || Op.getOpcode() == ISD::TargetConstant || Op.getOpcode() == ISD::Register) && "Unexpected illegal type!"' failed.
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0. Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/llc -o /app/output.s -x86-asm-syntax=intel <source>
1. Running pass 'Function Pass Manager' on module '<source>'.
2. Running pass 'X86 DAG->DAG Instruction Selection' on function '@julia_try_compute_fieldidx_stmt_92847.3'
#0 0x0000000003e05be8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x3e05be8)
#1 0x0000000003e03574 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#2 0x00007963a4042520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#3 0x00007963a40969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#4 0x00007963a4042476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#5 0x00007963a40287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#6 0x00007963a402871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#7 0x00007963a4039e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#8 0x0000000003a9178c (anonymous namespace)::SelectionDAGLegalize::LegalizeOp(llvm::SDNode*) (.part.0) LegalizeDAG.cpp:0:0
#9 0x0000000003a93d86 llvm::SelectionDAG::LegalizeOp(llvm::SDNode*, llvm::SmallSetVector<llvm::SDNode*, 16u>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x3a93d86)
#10 0x0000000003a4829b (anonymous namespace)::DAGCombiner::Run(llvm::CombineLevel) DAGCombiner.cpp:0:0
#11 0x0000000003a4a53b llvm::SelectionDAG::Combine(llvm::CombineLevel, llvm::BatchAAResults*, llvm::CodeGenOptLevel) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x3a4a53b)
#12 0x0000000003bac255 llvm::SelectionDAGISel::CodeGenAndEmitDAG() (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x3bac255)
#13 0x0000000003baf3f5 llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x3baf3f5)
#14 0x0000000003bb06b5 llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x3bb06b5)
#15 0x0000000003ba104f llvm::SelectionDAGISelLegacy::runOnMachineFunction(llvm::MachineFunction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x3ba104f)
#16 0x0000000002d797fa llvm::MachineFunctionPass::runOnFunction(llvm::Function&) (.part.0) MachineFunctionPass.cpp:0:0
#17 0x000000000339720f llvm::FPPassManager::runOnFunction(llvm::Function&) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x339720f)
#18 0x00000000033975c1 llvm::FPPassManager::runOnModule(llvm::Module&) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x33975c1)
#19 0x0000000003397e61 llvm::legacy::PassManagerImpl::run(llvm::Module&) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x3397e61)
#20 0x00000000008a00e6 compileModule(char**, llvm::LLVMContext&) llc.cpp:0:0
#21 0x000000000078487e main (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x78487e)
#22 0x00007963a4029d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#23 0x00007963a4029e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#24 0x0000000000896d15 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x896d15)
Program terminated with signal: SIGSEGV
Compiler returned: 139
```
Godbolt: https://godbolt.org/z/GfEjPq5hK
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