llvm/test/CodeGen/MIR/X86/fixed-stack-objects.mir

# RUN: llc -march=x86 -run-pass none -o - %s | FileCheck %s
# This test ensures that the MIR parser parses fixed stack objects correctly.

--- |

  define i32 @test(i32 %a) #0 {
  entry:
    %b = alloca i32
    store i32 %a, i32* %b
    %c = load i32, i32* %b
    ret i32 %c
  }

  attributes #0 = { "frame-pointer"="none" }

...
---
name:            test
frameInfo:
  stackSize:       4
  maxAlignment:    4
# CHECK: fixedStack:
# CHECK-NEXT: - { id: 0, type: default, offset: 0, size: 4, alignment: 4, stack-id: default
# CHECK-NEXT: isImmutable: true,
fixedStack:
  - { id: 0, offset: 0, size: 4, alignment: 4, isImmutable: true, isAliased: false }
stack:
  - { id: 0, offset: -8, size: 4, alignment: 4 }
body: |
  bb.0.entry:
    $eax = MOV32rm $esp, 1, _, 8, _
    MOV32mr $esp, 1, _, 0, _, $eax
    RET32 $eax
...