# RUN: not llc -mtriple=x86_64 -run-pass none -o /dev/null %s 2>&1 | FileCheck %s
# This test ensures that an error is reported when an unknown named machine
# basic block is encountered.

--- |

  define i32 @foo(ptr %p) {
  entry:
    %a = load i32, ptr %p
    %0 = icmp sle i32 %a, 10
    br i1 %0, label %less, label %exit

  less:
    ret i32 0

  exit:
    ret i32 %a
  }

...
---
name:            foo
body: |
  bb.0.entry:
    $eax = MOV32rm $rdi, 1, _, 0, _
    CMP32ri8 $eax, 10, implicit-def $eflags
    ; CHECK: [[@LINE+1]]:11: the name of machine basic block #2 isn't 'hit'
    JCC_1 %bb.2.hit, 15, implicit $eflags

  bb.1.less:
    $eax = MOV32r0 implicit-def $eflags

  bb.2.exit:
    RET64 $eax
...