llvm-project/llvm/test/CodeGen/MIR/X86/undefined-global-value.mir

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# RUN: not llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s 2>&1 | FileCheck %s
# This test ensures that an error is reported when an invalid global value index
# is used.
--- |
@0 = external global i32
define i32 @inc() {
entry:
%a = load i32, i32* @0
%b = add i32 %a, 1
ret i32 %b
}
...
---
name: inc
body: |
bb.0.entry:
; CHECK: [[@LINE+1]]:32: use of undefined global value '@2'
%rax = MOV64rm %rip, 1, _, @2, _
%eax = MOV32rm %rax, 1, _, 0, _
%eax = INC32r %eax
RETQ %eax
...