llvm-project/llvm/test/CodeGen/X86/GlobalISel/x86_64-select-frameIndex.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=x86_64-linux-gnu    -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefix=CHECK

--- |
  define i32* @allocai32() {
    %ptr1 = alloca i32
    ret i32* %ptr1
  }

...
---
name:            allocai32
legalized:       true
regBankSelected: true
selected:        false
registers:
  - { id: 0, class: gpr, preferred-register: '' }
fixedStack:
stack:
  - { id: 0, name: ptr1, type: default, offset: 0, size: 4, alignment: 4,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '',
      debug-info-location: '' }

body:             |
  bb.1 (%ir-block.0):
    ; CHECK-LABEL: name: allocai32
    ; CHECK: [[LEA64r:%[0-9]+]]:gr64 = LEA64r %stack.0.ptr1, 1, $noreg, 0, $noreg
    ; CHECK: $rax = COPY [[LEA64r]]
    ; CHECK: RET 0, implicit $rax
    %0:gpr(p0) = G_FRAME_INDEX %stack.0.ptr1
    $rax = COPY %0(p0)
    RET 0, implicit $rax

...