llvm-project/llvm/test/CodeGen/MIR/X86/undefined-stack-object.mir

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# RUN: not llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o /dev/null %s 2>&1 | FileCheck %s
--- |
define i32 @test(i32 %a) {
entry:
%b = alloca i32
store i32 %a, i32* %b
%c = load i32, i32* %b
ret i32 %c
}
...
---
name: test
isSSA: true
tracksRegLiveness: true
registers:
- { id: 0, class: gr32 }
frameInfo:
maxAlignment: 4
stack:
- { id: 0, name: b, size: 4, alignment: 4 }
body:
- id: 0
name: entry
instructions:
- '%0 = COPY %edi'
# CHECK: [[@LINE+1]]:18: use of undefined stack object '%stack.2'
- 'MOV32mr %stack.2, 1, _, 0, _, %0'
- '%eax = COPY %0'
- 'RETQ %eax'
...