llvm/llvm/test/CodeGen/MIR/X86/undefined-ir-block-slot-in-blockaddress.mir

# RUN: not llc -march=x86-64 -run-pass none -o /dev/null %s 2>&1 | FileCheck %s

--- |

  @addr = global ptr null

  define void @test() {
  entry:
    store volatile ptr blockaddress(@test, %0), ptr @addr
    %val = load volatile ptr, ptr @addr
    indirectbr ptr %val, [label %0]

    ret void
  }

...
---
name:            test
body: |
  bb.0.entry:
    successors: %bb.1
    ; CHECK: [[@LINE+1]]:51: use of undefined IR block '%ir-block.1'
    $rax = LEA64r $rip, 1, _, blockaddress(@test, %ir-block.1), _
    MOV64mr $rip, 1, _, @addr, _, killed $rax
    JMP64m $rip, 1, _, @addr, _

  bb.1:
    RET64
...