llvm/llvm/test/CodeGen/AArch64/misched-move-imm.mir

# RUN: llc -run-pass=machine-scheduler -mtriple=aarch64-linux-gnu -mcpu=neoverse-v2 %s -o /dev/null 2>&1
# Just ensure this doesn't crash. Ensures in the neoverse-v2
# scheduling model we don't attempt to treat the first input
# operand of MOVZXi as an immediate operand.

--- |
  target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32"
  
  declare void @foo2(<2 x float>) #0
  
  define void @foo1() #0 {
    call void @foo2(<2 x float> <float 2.500000e-01, float 7.500000e-01>)
    ret void
  }
  
  attributes #0 = { "target-cpu"="neoverse-v2" }

...
---
name:            foo1
alignment:       16
tracksRegLiveness: true
registers:
  - { id: 0, class: gpr64 }
  - { id: 1, class: gpr64 }
  - { id: 2, class: gpr64common }
  - { id: 3, class: gpr64common }
  - { id: 4, class: fpr64 }
frameInfo:
  maxAlignment:    1
  adjustsStack:    true
  hasCalls:        true
  maxCallFrameSize: 0
constants:
  - id:              0
    value:           '<2 x i32> <i32 1048576000, i32 1061158912>'
    alignment:       8
machineFunctionInfo: {}
body:             |
  bb.0 (%ir-block.0):
    ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
    %2:gpr64common = MOVZXi target-flags(aarch64-g0, aarch64-nc) %const.0, 0
    %2:gpr64common = MOVKXi %2, target-flags(aarch64-g1, aarch64-nc) %const.0, 16
    %2:gpr64common = MOVKXi %2, target-flags(aarch64-g2, aarch64-nc) %const.0, 32
    %2:gpr64common = MOVKXi %2, target-flags(aarch64-g3) %const.0, 48
    %4:fpr64 = LDRDui %2, 0 :: (load (s64) from constant-pool)
    $d0 = COPY %4
    BL @foo2, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $d0, implicit-def $sp
    ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp
    RET_ReallyLR

...