llvm-project/llvm/test/CodeGen/MIR/X86/unknown-machine-basic-block...

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# RUN: not llc -march=x86-64 -run-pass none -o /dev/null %s 2>&1 | FileCheck %s
# This test ensures that an error is reported when an invalid machine basic
# block index is used.
--- |
define i32 @foo(i32* %p) {
entry:
%a = load i32, i32* %p
%b = icmp sle i32 %a, 10
br i1 %b, label %0, label %1
; <label>:0
ret i32 0
; <label>:1
ret i32 %a
}
...
---
name: foo
body: |
bb.0.entry:
$eax = MOV32rm $rdi, 1, _, 0, _
CMP32ri8 $eax, 10, implicit-def $eflags
; CHECK: [[@LINE+1]]:10: use of undefined machine basic block #4
JG_1 %bb.4, implicit $eflags
bb.1:
$eax = MOV32r0 implicit-def $eflags
bb.2:
RETQ $eax
...