test/CodeGen/MIR/X86/cfi-def-cfa-register.mir

# RUN: llc -march=x86-64 -start-after branch-folder -stop-after branch-folder -o /dev/null %s | FileCheck %s
# This test ensures that the MIR parser parses the .cfi_def_cfa_register
# operands correctly.

--- |

  define void @func() #0 {
  entry:
    unreachable
  }

  attributes #0 = { "no-frame-pointer-elim"="true" }

...
---
name:            func
tracksRegLiveness: true
frameInfo:
  stackSize:     8
fixedStack:
  - { id: 0, type: spill-slot, offset: -16, size: 8, alignment: 16 }
body: |
  bb.0.entry:
    liveins: %rbp

    PUSH64r killed %rbp, implicit-def %rsp, implicit %rsp
    CFI_INSTRUCTION .cfi_def_cfa_offset 16
    CFI_INSTRUCTION .cfi_offset %rbp, -16
    %rbp = MOV64rr %rsp
    ; CHECK: CFI_INSTRUCTION .cfi_def_cfa_register %rbp
    CFI_INSTRUCTION .cfi_def_cfa_register %rbp
...