llvm/test/CodeGen/MIR/X86/load-with-max-alignment.mir

# RUN: llc -march=x86-64 -run-pass=none -o - %s | FileCheck %s

# CHECK: name:            truly_aligned_load
# CHECK: MOV32rm {{.*}} :: (load (s32), align 4294967296)

# CHECK: name:            basealigned_load
# CHECK: MOV32rm {{.*}} :: (load (s32) from unknown-address + 4, basealign 4294967296)

---
name:            truly_aligned_load
alignment:       16
tracksRegLiveness: true
liveins:
  - { reg: '$rdi' }
frameInfo:
  maxAlignment:    1
  maxCallFrameSize: 0
machineFunctionInfo: {}
body:             |
  bb.0:
    liveins: $rdi

    renamable $eax = MOV32rm killed renamable $rdi, 1, $noreg, 0, $noreg :: (load (s32) from unknown-address, align 4294967296)
    RET64 $eax

...
---
name:            basealigned_load
alignment:       16
tracksRegLiveness: true
liveins:
  - { reg: '$rdi' }
frameInfo:
  maxAlignment:    1
  maxCallFrameSize: 0
machineFunctionInfo: {}
body:             |
  bb.0:
    liveins: $rdi

    renamable $eax = MOV32rm killed renamable $rdi, 1, $noreg, 0, $noreg :: (load (s32) from unknown-address + 4, basealign 4294967296)
    RET64 $eax

...