[NVPTX] SelectionDAG Cannot select dynamic_stackalloc

[DataCorrupted]

NVPTX will crash on Cannot select a dynamic_stackalloc given the following LLVM IR.
The bug can be reproduced on the latest commit e723c69b9 and LLVM14.

You can find it here: https://llvm.godbolt.org/z/ea3TbvTqE

; ModuleID = 'PoC'
source_filename = "M"

define void @f() {
BB:
  %B = lshr i32 65536, -2147483648
  %A = alloca i8*, i32 %B, align 4
  %G = getelementptr i8*, i8** %A, i1 true
  store i8** %G, i8*** undef, align 4
  ret void
}

The stack trace is following:

LLVM ERROR: Cannot select: t6: i32,ch = dynamic_stackalloc t0, Constant:i32<0>, Constant:i32<0>
  t3: i32 = Constant<0>
  t3: i32 = Constant<0>
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: /home/peter/aflplusplus-isel/llvm-project/build-debug/bin/llc -mtriple=nvptx PoC.ll
1.      Running pass 'Function Pass Manager' on module 'PoC.ll'.
2.      Running pass 'NVPTX DAG->DAG Pattern Instruction Selection' on function '@f'
 #0 0x0000000003a45a1a llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/peter/aflplusplus-isel/llvm-project/llvm/lib/Support/Unix/Signals.inc:569:11
 #1 0x0000000003a45bcb PrintStackTraceSignalHandler(void*) /home/peter/aflplusplus-isel/llvm-project/llvm/lib/Support/Unix/Signals.inc:636:1
 #2 0x0000000003a44216 llvm::sys::RunSignalHandlers() /home/peter/aflplusplus-isel/llvm-project/llvm/lib/Support/Signals.cpp:103:5
 #3 0x0000000003a462f5 SignalHandler(int) /home/peter/aflplusplus-isel/llvm-project/llvm/lib/Support/Unix/Signals.inc:407:1
 #4 0x00007f44398a2980 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x12980)
 #5 0x00007f4438792e87 raise /build/glibc-uZu3wS/glibc-2.27/signal/../sysdeps/unix/sysv/linux/raise.c:51:0
 #6 0x00007f44387947f1 abort /build/glibc-uZu3wS/glibc-2.27/stdlib/abort.c:81:0
 #7 0x000000000396ca74 llvm::report_fatal_error(llvm::Twine const&, bool) /home/peter/aflplusplus-isel/llvm-project/llvm/lib/Support/ErrorHandling.cpp:125:5
 #8 0x00000000037bec8b /home/peter/aflplusplus-isel/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:3765:3
 #9 0x00000000037bc222 llvm::SelectionDAGISel::SelectCodeCommon(llvm::SDNode*, unsigned char const*, unsigned int) /home/peter/aflplusplus-isel/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:3667:9
#10 0x0000000001e0e299 llvm::NVPTXDAGToDAGISel::SelectCode(llvm::SDNode*) /home/peter/aflplusplus-isel/llvm-project/build-debug/lib/Target/NVPTX/NVPTXGenDAGISel.inc:86754:1
#11 0x0000000001e00944 llvm::NVPTXDAGToDAGISel::Select(llvm::SDNode*) /home/peter/aflplusplus-isel/llvm-project/llvm/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp:505:1
#12 0x00000000037afdb9 llvm::SelectionDAGISel::DoInstructionSelection() /home/peter/aflplusplus-isel/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1153:5
#13 0x00000000037aee0a llvm::SelectionDAGISel::CodeGenAndEmitDAG() /home/peter/aflplusplus-isel/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:933:3
#14 0x00000000037ad7dd llvm::SelectionDAGISel::SelectBasicBlock(llvm::ilist_iterator<llvm::ilist_detail::node_options<llvm::Instruction, true, false, void>, false, true>, llvm::ilist_iterator<llvm::ilist_detail::node_options<llvm::Instruction, true, false, void>, false, true>, bool&) /home/peter/aflplusplus-isel/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:685:1
#15 0x00000000037ad27b llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) /home/peter/aflplusplus-isel/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1591:11
#16 0x00000000037aa81d llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) /home/peter/aflplusplus-isel/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:464:3
#17 0x0000000001e004e5 llvm::NVPTXDAGToDAGISel::runOnMachineFunction(llvm::MachineFunction&) /home/peter/aflplusplus-isel/llvm-project/llvm/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp:46:3
#18 0x000000000281fadd llvm::MachineFunctionPass::runOnFunction(llvm::Function&) /home/peter/aflplusplus-isel/llvm-project/llvm/lib/CodeGen/MachineFunctionPass.cpp:85:8
#19 0x0000000002ef9146 llvm::FPPassManager::runOnFunction(llvm::Function&) /home/peter/aflplusplus-isel/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1430:23
#20 0x0000000002efdf72 llvm::FPPassManager::runOnModule(llvm::Module&) /home/peter/aflplusplus-isel/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1476:16
#21 0x0000000002ef9a19 (anonymous namespace)::MPPassManager::runOnModule(llvm::Module&) /home/peter/aflplusplus-isel/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1545:23
#22 0x0000000002ef958d llvm::legacy::PassManagerImpl::run(llvm::Module&) /home/peter/aflplusplus-isel/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:535:16
#23 0x0000000002efe251 llvm::legacy::PassManager::run(llvm::Module&) /home/peter/aflplusplus-isel/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1672:3
#24 0x0000000000d1ad70 compileModule(char**, llvm::LLVMContext&) /home/peter/aflplusplus-isel/llvm-project/llvm/tools/llc/llc.cpp:737:41
#25 0x0000000000d190f2 main /home/peter/aflplusplus-isel/llvm-project/llvm/tools/llc/llc.cpp:418:13
#26 0x00007f4438775c87 __libc_start_main /build/glibc-uZu3wS/glibc-2.27/csu/../csu/libc-start.c:344:0
#27 0x0000000000d188fa _start (/home/peter/aflplusplus-isel/llvm-project/build-debug/bin/llc+0xd188fa)
Aborted

[AlexMaclean]

This should now be fixed. The linked example now shows an error message about insufficient sm and ptx version. Once these are added the program compiles without issue: https://llvm.godbolt.org/z/3Taj6bx17