[AArch64/GlobalISel] Unable to Translate ret with v1i8 / v1i16

[HazyFish]

Description

For AArch64, a return instruction of type <1 x i8> or <1 x i16> cannot be translated when using GlobalISel.
<1 x i1>, <1 x i32>, <1 x i64> do not have the problem.

Cause

The crash is caused here:

llvm-project/llvm/lib/Target/AArch64/GISel/AArch64CallLowering.cpp

Line 431 in 4aa87a1

LLVM_DEBUG(dbgs() << "Could not handle ret ty\n");

Minimal Reproduction

https://godbolt.org/z/6eGesshj5

Code

define <1 x i16> @f() {
BB:
  ret <1 x i16> <i16 0>
}

Stack Trace

LLVM ERROR: unable to translate instruction: ret (in function: f)
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.	Program arguments: ./llvm-project/build-debug/bin/llc ./crash-reports/gisel-aarch64/4.ll -mtriple=aarch64 -global-isel
1.	Running pass 'Function Pass Manager' on module './crash-reports/gisel-aarch64/4.ll'.
2.	Running pass 'IRTranslator' on function '@f'
 #0 0x0000000003adad2a llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/henry/aflplusplus-isel/llvm-project/llvm/lib/Support/Unix/Signals.inc:569:11
 #1 0x0000000003adaedb PrintStackTraceSignalHandler(void*) /home/henry/aflplusplus-isel/llvm-project/llvm/lib/Support/Unix/Signals.inc:636:1
 #2 0x0000000003ad9526 llvm::sys::RunSignalHandlers() /home/henry/aflplusplus-isel/llvm-project/llvm/lib/Support/Signals.cpp:103:5
 #3 0x0000000003adb605 SignalHandler(int) /home/henry/aflplusplus-isel/llvm-project/llvm/lib/Support/Unix/Signals.inc:407:1
 #4 0x00007fc761f8d980 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x12980)
 #5 0x00007fc760e7de87 raise /build/glibc-uZu3wS/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0
 #6 0x00007fc760e7f7f1 abort /build/glibc-uZu3wS/glibc-2.27/stdlib/abort.c:81:0
 #7 0x0000000003a014b4 llvm::report_fatal_error(llvm::Twine const&, bool) /home/henry/aflplusplus-isel/llvm-project/llvm/lib/Support/ErrorHandling.cpp:125:5
 #8 0x0000000003f7ca82 reportTranslationError(llvm::MachineFunction&, llvm::TargetPassConfig const&, llvm::OptimizationRemarkEmitter&, llvm::OptimizationRemarkMissed&) /home/henry/aflplusplus-isel/llvm-project/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp:125:5
 #9 0x0000000003f90bc8 llvm::IRTranslator::runOnMachineFunction(llvm::MachineFunction&) /home/henry/aflplusplus-isel/llvm-project/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp:3535:9
#10 0x0000000002894c85 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) /home/henry/aflplusplus-isel/llvm-project/llvm/lib/CodeGen/MachineFunctionPass.cpp:91:8
#11 0x0000000002f797d6 llvm::FPPassManager::runOnFunction(llvm::Function&) /home/henry/aflplusplus-isel/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1430:23
#12 0x0000000002f7e602 llvm::FPPassManager::runOnModule(llvm::Module&) /home/henry/aflplusplus-isel/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1476:16
#13 0x0000000002f7a0a9 (anonymous namespace)::MPPassManager::runOnModule(llvm::Module&) /home/henry/aflplusplus-isel/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1545:23
#14 0x0000000002f79c1d llvm::legacy::PassManagerImpl::run(llvm::Module&) /home/henry/aflplusplus-isel/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:535:16
#15 0x0000000002f7e8e1 llvm::legacy::PassManager::run(llvm::Module&) /home/henry/aflplusplus-isel/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1672:3
#16 0x0000000000d2cdbc compileModule(char**, llvm::LLVMContext&) /home/henry/aflplusplus-isel/llvm-project/llvm/tools/llc/llc.cpp:737:41
#17 0x0000000000d2b162 main /home/henry/aflplusplus-isel/llvm-project/llvm/tools/llc/llc.cpp:418:13
#18 0x00007fc760e60c87 __libc_start_main /build/glibc-uZu3wS/glibc-2.27/csu/../csu/libc-start.c:344:0
#19 0x0000000000d2a96a _start (./llvm-project/build-debug/bin/llc+0xd2a96a)

[llvmbot]

@llvm/issue-subscribers-backend-aarch64

[niwinanto]

Submitted the patch to fix this issue.
https://reviews.llvm.org/D153300