| Issue |
172420
|
| Summary |
[AArch64][SVE] Assertion `(VA.getValVT().isScalableVector() || Subtarget->isWindowsArm64EC()) && "Indirect arguments should be scalable on most subtargets"' failed.
|
| Labels |
backend:AArch64,
SVE,
crash
|
| Assignees |
|
| Reporter |
k-arrows
|
Reproducer:
https://godbolt.org/z/r9f949PE6
Backtrace:
```console
llc: /root/llvm-project/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp:8746: virtual llvm::SDValue llvm::AArch64TargetLowering::LowerFormalArguments(llvm::SDValue, llvm::CallingConv::ID, bool, const llvm::SmallVectorImpl<llvm::ISD::InputArg>&, const llvm::SDLoc&, llvm::SelectionDAG&, llvm::SmallVectorImpl<llvm::SDValue>&) const: Assertion `(VA.getValVT().isScalableVector() || Subtarget->isWindowsArm64EC()) && "Indirect arguments should be scalable on most subtargets"' failed.
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/llc -o /app/output.s -x86-asm-syntax=intel <source>
1. Running pass 'Function Pass Manager' on module '<source>'.
2. Running pass 'AArch64 Instruction Selection' on function '@foo'
#0 0x000000000421fb68 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x421fb68)
#1 0x000000000421ca14 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
#2 0x00007684f8e42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#3 0x00007684f8e969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#4 0x00007684f8e42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#5 0x00007684f8e287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#6 0x00007684f8e2871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#7 0x00007684f8e39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#8 0x0000000000d77e03 llvm::AArch64TargetLowering::LowerFormalArguments(llvm::SDValue, unsigned int, bool, llvm::SmallVectorImpl<llvm::ISD::InputArg> const&, llvm::SDLoc const&, llvm::SelectionDAG&, llvm::SmallVectorImpl<llvm::SDValue>&) const (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0xd77e03)
#9 0x0000000003eea794 llvm::SelectionDAGISel::LowerArguments(llvm::Function const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x3eea794)
#10 0x0000000003fb8ef5 llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x3fb8ef5)
#11 0x0000000003fbb03c llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x3fbb03c)
#12 0x0000000003fa683f llvm::SelectionDAGISelLegacy::runOnMachineFunction(llvm::MachineFunction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x3fa683f)
#13 0x00000000030f5fd9 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) (.part.0) MachineFunctionPass.cpp:0:0
#14 0x0000000003750ab6 llvm::FPPassManager::runOnFunction(llvm::Function&) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x3750ab6)
#15 0x0000000003750e61 llvm::FPPassManager::runOnModule(llvm::Module&) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x3750e61)
#16 0x00000000037516cf llvm::legacy::PassManagerImpl::run(llvm::Module&) (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x37516cf)
#17 0x00000000008fe384 compileModule(char**, llvm::LLVMContext&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>&) llc.cpp:0:0
#18 0x00000000007c88f9 main (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x7c88f9)
#19 0x00007684f8e29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#20 0x00007684f8e29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#21 0x00000000008f3585 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/llc+0x8f3585)
Program terminated with signal: SIGSEGV
Compiler returned: 139
```
This comes from the following C reproducer:
```c
#include <arm_sve.h>
svcount_t foo(svcount_t p0, svcount_t p1, svcount_t p2, svcount_t p3, int x0,
int x1, int x2, int x3, int x4, int x5, int x6, int x7,
svcount_t p4) {
return p0;
}
```
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