# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -run-pass arm-mve-vpt-opts %s -o - | FileCheck %s

--- |
  target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
  target triple = "thumbv8.1m.main-none-none-eabi"

  ; Functions are intentionally left blank - see the MIR sequences below.

  define arm_aapcs_vfpcc <4 x float> @vcmp_with_opposite_cond(<4 x float> %inactive1) #0 {
  entry:
    ret <4 x float> %inactive1
  }

  define arm_aapcs_vfpcc <4 x float> @vcmp_with_opposite_cond_and_swapped_operands(<4 x float> %inactive1) #0 {
  entry:
    ret <4 x float> %inactive1
  }

  define arm_aapcs_vfpcc <4 x float> @triple_vcmp(<4 x float> %inactive1) #0 {
  entry:
    ret <4 x float> %inactive1
  }

  define arm_aapcs_vfpcc <4 x float> @killed_vccr_values(<4 x float> %inactive1) #0 {
  entry:
    ret <4 x float> %inactive1
  }

  define arm_aapcs_vfpcc <4 x float> @predicated_vcmps(<4 x float> %inactive1) #0 {
  entry:
    ret <4 x float> %inactive1
  }

  define arm_aapcs_vfpcc <4 x float> @flt_with_swapped_operands(<4 x float> %inactive1) #0 {
  entry:
    ret <4 x float> %inactive1
  }

  define arm_aapcs_vfpcc <4 x float> @different_opcodes(<4 x float> %inactive1) #0 {
  entry:
    ret <4 x float> %inactive1
  }

  define arm_aapcs_vfpcc <4 x float> @incorrect_condcode(<4 x float> %inactive1) #0 {
  entry:
    ret <4 x float> %inactive1
  }

  define arm_aapcs_vfpcc <4 x float> @vpr_or_vccr_write_between_vcmps(<4 x float> %inactive1) #0 {
  entry:
    ret <4 x float> %inactive1
  }

  define arm_aapcs_vfpcc <4 x float> @spill_prevention(<4 x float> %inactive1) #0 {
  entry:
    ret <4 x float> %inactive1
  }

  define arm_aapcs_vfpcc <4 x float> @spill_prevention_multi(<4 x float> %inactive1) #0 {
  entry:
    ret <4 x float> %inactive1
  }

  define arm_aapcs_vfpcc <4 x float> @spill_prevention_predicated_vpnots(<4 x float> %inactive1) #0 {
  entry:
    ret <4 x float> %inactive1
  }

  define arm_aapcs_vfpcc <4 x float> @spill_prevention_copies(<4 x float> %inactive1) #0 {
  entry:
    ret <4 x float> %inactive1
  }

  define arm_aapcs_vfpcc <4 x float> @spill_prevention_vpnot_reordering(<4 x float> %inactive1) #0 {
  entry:
    ret <4 x float> %inactive1
  }

  define arm_aapcs_vfpcc <4 x float> @spill_prevention_stop_after_write(<4 x float> %inactive1) #0 {
  entry:
    ret <4 x float> %inactive1
  }

  attributes #0 = { "target-features"="+armv8.1-m.main,+hwdiv,+mve.fp,+ras,+thumb-mode" }
...
---
name:            vcmp_with_opposite_cond
alignment:       4
body:             |
  ; CHECK-LABEL: name: vcmp_with_opposite_cond
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   [[MVE_VCMPf16_:%[0-9]+]]:vccr = MVE_VCMPf16 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPf16_]], 0, $noreg
  ; CHECK: bb.1:
  ; CHECK:   successors: %bb.2(0x80000000)
  ; CHECK:   [[MVE_VCMPf32_:%[0-9]+]]:vccr = MVE_VCMPf32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT1:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPf32_]], 0, $noreg
  ; CHECK: bb.2:
  ; CHECK:   successors: %bb.3(0x80000000)
  ; CHECK:   [[MVE_VCMPi16_:%[0-9]+]]:vccr = MVE_VCMPi16 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT2:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPi16_]], 0, $noreg
  ; CHECK: bb.3:
  ; CHECK:   successors: %bb.4(0x80000000)
  ; CHECK:   [[MVE_VCMPi32_:%[0-9]+]]:vccr = MVE_VCMPi32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT3:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPi32_]], 0, $noreg
  ; CHECK: bb.4:
  ; CHECK:   successors: %bb.5(0x80000000)
  ; CHECK:   [[MVE_VCMPi8_:%[0-9]+]]:vccr = MVE_VCMPi8 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT4:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPi8_]], 0, $noreg
  ; CHECK: bb.5:
  ; CHECK:   successors: %bb.6(0x80000000)
  ; CHECK:   [[MVE_VCMPs16_:%[0-9]+]]:vccr = MVE_VCMPs16 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT5:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs16_]], 0, $noreg
  ; CHECK: bb.6:
  ; CHECK:   successors: %bb.7(0x80000000)
  ; CHECK:   [[MVE_VCMPs32_:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT6:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_]], 0, $noreg
  ; CHECK: bb.7:
  ; CHECK:   successors: %bb.8(0x80000000)
  ; CHECK:   [[MVE_VCMPs8_:%[0-9]+]]:vccr = MVE_VCMPs8 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT7:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs8_]], 0, $noreg
  ; CHECK: bb.8:
  ; CHECK:   successors: %bb.9(0x80000000)
  ; CHECK:   [[MVE_VCMPu16_:%[0-9]+]]:vccr = MVE_VCMPu16 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT8:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPu16_]], 0, $noreg
  ; CHECK: bb.9:
  ; CHECK:   successors: %bb.10(0x80000000)
  ; CHECK:   [[MVE_VCMPu32_:%[0-9]+]]:vccr = MVE_VCMPu32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT9:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPu32_]], 0, $noreg
  ; CHECK: bb.10:
  ; CHECK:   successors: %bb.11(0x80000000)
  ; CHECK:   [[MVE_VCMPu8_:%[0-9]+]]:vccr = MVE_VCMPu8 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT10:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPu8_]], 0, $noreg
  ; CHECK: bb.11:
  ; CHECK:   successors: %bb.12(0x80000000)
  ; CHECK:   [[MVE_VCMPf16r:%[0-9]+]]:vccr = MVE_VCMPf16r %1:mqpr, %25:gprwithzr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT11:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPf16r]], 0, $noreg
  ; CHECK: bb.12:
  ; CHECK:   successors: %bb.13(0x80000000)
  ; CHECK:   [[MVE_VCMPf32r:%[0-9]+]]:vccr = MVE_VCMPf32r %1:mqpr, %25:gprwithzr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT12:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPf32r]], 0, $noreg
  ; CHECK: bb.13:
  ; CHECK:   successors: %bb.14(0x80000000)
  ; CHECK:   [[MVE_VCMPi16r:%[0-9]+]]:vccr = MVE_VCMPi16r %1:mqpr, %25:gprwithzr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT13:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPi16r]], 0, $noreg
  ; CHECK: bb.14:
  ; CHECK:   successors: %bb.15(0x80000000)
  ; CHECK:   [[MVE_VCMPi32r:%[0-9]+]]:vccr = MVE_VCMPi32r %1:mqpr, %25:gprwithzr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT14:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPi32r]], 0, $noreg
  ; CHECK: bb.15:
  ; CHECK:   successors: %bb.16(0x80000000)
  ; CHECK:   [[MVE_VCMPi8r:%[0-9]+]]:vccr = MVE_VCMPi8r %1:mqpr, %25:gprwithzr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT15:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPi8r]], 0, $noreg
  ; CHECK: bb.16:
  ; CHECK:   successors: %bb.17(0x80000000)
  ; CHECK:   [[MVE_VCMPs16r:%[0-9]+]]:vccr = MVE_VCMPs16r %1:mqpr, %25:gprwithzr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT16:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs16r]], 0, $noreg
  ; CHECK: bb.17:
  ; CHECK:   successors: %bb.18(0x80000000)
  ; CHECK:   [[MVE_VCMPs32r:%[0-9]+]]:vccr = MVE_VCMPs32r %1:mqpr, %25:gprwithzr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT17:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32r]], 0, $noreg
  ; CHECK: bb.18:
  ; CHECK:   successors: %bb.19(0x80000000)
  ; CHECK:   [[MVE_VCMPs8r:%[0-9]+]]:vccr = MVE_VCMPs8r %1:mqpr, %25:gprwithzr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT18:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs8r]], 0, $noreg
  ; CHECK: bb.19:
  ; CHECK:   successors: %bb.20(0x80000000)
  ; CHECK:   [[MVE_VCMPu16r:%[0-9]+]]:vccr = MVE_VCMPu16r %1:mqpr, %25:gprwithzr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT19:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPu16r]], 0, $noreg
  ; CHECK: bb.20:
  ; CHECK:   successors: %bb.21(0x80000000)
  ; CHECK:   [[MVE_VCMPu32r:%[0-9]+]]:vccr = MVE_VCMPu32r %1:mqpr, %25:gprwithzr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT20:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPu32r]], 0, $noreg
  ; CHECK: bb.21:
  ; CHECK:   successors: %bb.22(0x80000000)
  ; CHECK:   [[MVE_VCMPu8r:%[0-9]+]]:vccr = MVE_VCMPu8r %1:mqpr, %25:gprwithzr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT21:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPu8r]], 0, $noreg
  ; CHECK: bb.22:
  ; CHECK:   [[MVE_VCMPu8r1:%[0-9]+]]:vccr = MVE_VCMPu8r %1:mqpr, $zr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT22:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPu8r1]], 0, $noreg
  ; CHECK:   tBX_RET 14 /* CC::al */, $noreg, implicit %1:mqpr
  ;
  ; Tests that VCMPs with an opposite condition are correctly converted into VPNOTs.
  ;
  bb.0:
    %3:vccr = MVE_VCMPf16 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %4:vccr = MVE_VCMPf16 %0:mqpr, %1:mqpr, 11, 0, $noreg

  bb.1:
    %5:vccr = MVE_VCMPf32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %6:vccr = MVE_VCMPf32 %0:mqpr, %1:mqpr, 11, 0, $noreg

  bb.2:
    %7:vccr = MVE_VCMPi16 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %8:vccr = MVE_VCMPi16 %0:mqpr, %1:mqpr, 11, 0, $noreg

  bb.3:
    %9:vccr = MVE_VCMPi32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %10:vccr = MVE_VCMPi32 %0:mqpr, %1:mqpr, 11, 0, $noreg

  bb.4:
    %11:vccr = MVE_VCMPi8 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %12:vccr = MVE_VCMPi8 %0:mqpr, %1:mqpr, 11, 0, $noreg

  bb.5:
    %13:vccr = MVE_VCMPs16 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %14:vccr = MVE_VCMPs16 %0:mqpr, %1:mqpr, 11, 0, $noreg

  bb.6:
    %15:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %16:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 11, 0, $noreg

  bb.7:
    %17:vccr = MVE_VCMPs8 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %18:vccr = MVE_VCMPs8 %0:mqpr, %1:mqpr, 11, 0, $noreg

  bb.8:
    %19:vccr = MVE_VCMPu16 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %20:vccr = MVE_VCMPu16 %0:mqpr, %1:mqpr, 11, 0, $noreg

  bb.9:
    %21:vccr = MVE_VCMPu32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %22:vccr = MVE_VCMPu32 %0:mqpr, %1:mqpr, 11, 0, $noreg

  bb.10:
    %23:vccr = MVE_VCMPu8 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %24:vccr = MVE_VCMPu8 %0:mqpr, %1:mqpr, 11, 0, $noreg

  bb.11:
    %25:vccr = MVE_VCMPf16r %0:mqpr, %2:gprwithzr, 10, 0, $noreg
    %26:vccr = MVE_VCMPf16r %0:mqpr, %2:gprwithzr, 11, 0, $noreg

  bb.12:
    %27:vccr = MVE_VCMPf32r %0:mqpr, %2:gprwithzr, 10, 0, $noreg
    %28:vccr = MVE_VCMPf32r %0:mqpr, %2:gprwithzr, 11, 0, $noreg

  bb.13:
    %29:vccr = MVE_VCMPi16r %0:mqpr, %2:gprwithzr, 10, 0, $noreg
    %30:vccr = MVE_VCMPi16r %0:mqpr, %2:gprwithzr, 11, 0, $noreg

  bb.14:
    %31:vccr = MVE_VCMPi32r %0:mqpr, %2:gprwithzr, 10, 0, $noreg
    %32:vccr = MVE_VCMPi32r %0:mqpr, %2:gprwithzr, 11, 0, $noreg

  bb.15:
    %33:vccr = MVE_VCMPi8r %0:mqpr, %2:gprwithzr, 10, 0, $noreg
    %34:vccr = MVE_VCMPi8r %0:mqpr, %2:gprwithzr, 11, 0, $noreg

  bb.16:
    %35:vccr = MVE_VCMPs16r %0:mqpr, %2:gprwithzr, 10, 0, $noreg
    %36:vccr = MVE_VCMPs16r %0:mqpr, %2:gprwithzr, 11, 0, $noreg

  bb.17:
    %37:vccr = MVE_VCMPs32r %0:mqpr, %2:gprwithzr, 10, 0, $noreg
    %38:vccr = MVE_VCMPs32r %0:mqpr, %2:gprwithzr, 11, 0, $noreg

  bb.18:
    %39:vccr = MVE_VCMPs8r %0:mqpr, %2:gprwithzr, 10, 0, $noreg
    %40:vccr = MVE_VCMPs8r %0:mqpr, %2:gprwithzr, 11, 0, $noreg

  bb.19:
    %41:vccr = MVE_VCMPu16r %0:mqpr, %2:gprwithzr, 10, 0, $noreg
    %42:vccr = MVE_VCMPu16r %0:mqpr, %2:gprwithzr, 11, 0, $noreg

  bb.20:
    %43:vccr = MVE_VCMPu32r %0:mqpr, %2:gprwithzr, 10, 0, $noreg
    %44:vccr = MVE_VCMPu32r %0:mqpr, %2:gprwithzr, 11, 0, $noreg

  bb.21:
    %45:vccr = MVE_VCMPu8r %0:mqpr, %2:gprwithzr, 10, 0, $noreg
    %46:vccr = MVE_VCMPu8r %0:mqpr, %2:gprwithzr, 11, 0, $noreg

  bb.22:
    ; There shouldn't be any exception for $zr, so the second VCMP should
    ; be transformed into a VPNOT.
    %47:vccr = MVE_VCMPu8r %0:mqpr, $zr, 10, 0, $noreg
    %48:vccr = MVE_VCMPu8r %0:mqpr, $zr, 11, 0, $noreg

    tBX_RET 14, $noreg, implicit %0:mqpr
...
---
name:            vcmp_with_opposite_cond_and_swapped_operands
alignment:       4
body:             |
  ; CHECK-LABEL: name: vcmp_with_opposite_cond_and_swapped_operands
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   [[MVE_VCMPi16_:%[0-9]+]]:vccr = MVE_VCMPi16 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPi16_]], 0, $noreg
  ; CHECK: bb.1:
  ; CHECK:   successors: %bb.2(0x80000000)
  ; CHECK:   [[MVE_VCMPi32_:%[0-9]+]]:vccr = MVE_VCMPi32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT1:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPi32_]], 0, $noreg
  ; CHECK: bb.2:
  ; CHECK:   successors: %bb.3(0x80000000)
  ; CHECK:   [[MVE_VCMPi8_:%[0-9]+]]:vccr = MVE_VCMPi8 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT2:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPi8_]], 0, $noreg
  ; CHECK: bb.3:
  ; CHECK:   successors: %bb.4(0x80000000)
  ; CHECK:   [[MVE_VCMPs16_:%[0-9]+]]:vccr = MVE_VCMPs16 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT3:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs16_]], 0, $noreg
  ; CHECK: bb.4:
  ; CHECK:   successors: %bb.5(0x80000000)
  ; CHECK:   [[MVE_VCMPs32_:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT4:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_]], 0, $noreg
  ; CHECK: bb.5:
  ; CHECK:   successors: %bb.6(0x80000000)
  ; CHECK:   [[MVE_VCMPs8_:%[0-9]+]]:vccr = MVE_VCMPs8 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT5:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs8_]], 0, $noreg
  ; CHECK: bb.6:
  ; CHECK:   successors: %bb.7(0x80000000)
  ; CHECK:   [[MVE_VCMPu16_:%[0-9]+]]:vccr = MVE_VCMPu16 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT6:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPu16_]], 0, $noreg
  ; CHECK: bb.7:
  ; CHECK:   successors: %bb.8(0x80000000)
  ; CHECK:   [[MVE_VCMPu32_:%[0-9]+]]:vccr = MVE_VCMPu32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT7:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPu32_]], 0, $noreg
  ; CHECK: bb.8:
  ; CHECK:   [[MVE_VCMPu8_:%[0-9]+]]:vccr = MVE_VCMPu8 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT8:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPu8_]], 0, $noreg
  ; CHECK:   tBX_RET 14 /* CC::al */, $noreg, implicit %1:mqpr
  ;
  ; Tests that VCMPs with an opposite condition and swapped operands are
  ; correctly converted into VPNOTs.
  ;
  bb.0:
    %2:vccr = MVE_VCMPi16 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %3:vccr = MVE_VCMPi16 %1:mqpr, %0:mqpr, 12, 0, $noreg

  bb.1:
    %4:vccr = MVE_VCMPi32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %5:vccr = MVE_VCMPi32 %1:mqpr, %0:mqpr, 12, 0, $noreg

  bb.2:
    %6:vccr = MVE_VCMPi8 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %7:vccr = MVE_VCMPi8 %1:mqpr, %0:mqpr, 12, 0, $noreg

  bb.3:
    %8:vccr = MVE_VCMPs16 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %9:vccr = MVE_VCMPs16 %1:mqpr, %0:mqpr, 12, 0, $noreg

  bb.4:
    %10:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %11:vccr = MVE_VCMPs32 %1:mqpr, %0:mqpr, 12, 0, $noreg

  bb.5:
    %12:vccr = MVE_VCMPs8 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %13:vccr = MVE_VCMPs8 %1:mqpr, %0:mqpr, 12, 0, $noreg

  bb.6:
    %14:vccr = MVE_VCMPu16 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %15:vccr = MVE_VCMPu16 %1:mqpr, %0:mqpr, 12, 0, $noreg

  bb.7:
    %16:vccr = MVE_VCMPu32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %17:vccr = MVE_VCMPu32 %1:mqpr, %0:mqpr, 12, 0, $noreg

  bb.8:
    %18:vccr = MVE_VCMPu8 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %19:vccr = MVE_VCMPu8 %1:mqpr, %0:mqpr, 12, 0, $noreg

    tBX_RET 14, $noreg, implicit %0:mqpr
...
---
name:            triple_vcmp
alignment:       4
body:             |
  ;
  ; Tests that, when there are 2 "VPNOT-like VCMPs" in a row, only the first
  ; becomes a VPNOT.
  ;
  bb.0:
    ; CHECK-LABEL: name: triple_vcmp
    ; CHECK: [[MVE_VCMPs32_:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
    ; CHECK: [[MVE_VPNOT:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_]], 0, $noreg
    ; CHECK: [[MVE_VCMPs32_1:%[0-9]+]]:vccr = MVE_VCMPs32 %2:mqpr, %1:mqpr, 12, 0, $noreg
    ; CHECK: tBX_RET 14 /* CC::al */, $noreg, implicit %1:mqpr
    %2:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %3:vccr = MVE_VCMPs32 %1:mqpr, %0:mqpr, 12, 0, $noreg
    %4:vccr = MVE_VCMPs32 %1:mqpr, %0:mqpr, 12, 0, $noreg
    tBX_RET 14, $noreg, implicit %0:mqpr
...
---
name:            killed_vccr_values
alignment:       4
body:             |
  ; CHECK-LABEL: name: killed_vccr_values
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   [[MVE_VCMPf16_:%[0-9]+]]:vccr = MVE_VCMPf16 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VORR:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %2:mqpr, 1, [[MVE_VCMPf16_]], undef [[MVE_VORR]]
  ; CHECK:   [[MVE_VPNOT:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPf16_]], 0, $noreg
  ; CHECK: bb.1:
  ; CHECK:   successors: %bb.2(0x80000000)
  ; CHECK:   [[MVE_VCMPs32_:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT1:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_]], 0, $noreg
  ; CHECK:   [[MVE_VORR1:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VPNOT1]], undef [[MVE_VORR1]]
  ; CHECK:   [[MVE_VPNOT2:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT1]], 0, $noreg
  ; CHECK:   [[MVE_VORR2:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR1]], [[MVE_VORR1]], 1, [[MVE_VPNOT2]], undef [[MVE_VORR2]]
  ; CHECK: bb.2:
  ; CHECK:   successors: %bb.3(0x80000000)
  ; CHECK:   [[MVE_VCMPs32_1:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT3:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_1]], 0, $noreg
  ; CHECK:   [[MVE_VORR3:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VPNOT3]], undef [[MVE_VORR3]]
  ; CHECK:   [[MVE_VPNOT4:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT3]], 0, $noreg
  ; CHECK:   [[MVE_VORR4:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR3]], [[MVE_VORR3]], 1, [[MVE_VPNOT4]], undef [[MVE_VORR4]]
  ; CHECK: bb.3:
  ; CHECK:   [[MVE_VCMPs32_2:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT5:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_2]], 0, $noreg
  ; CHECK:   [[MVE_VORR5:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VPNOT5]], undef [[MVE_VORR5]]
  ; CHECK:   [[MVE_VPNOT6:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT5]], 0, $noreg
  ; CHECK:   [[MVE_VORR6:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR5]], [[MVE_VORR5]], 1, [[MVE_VPNOT6]], undef [[MVE_VORR6]]
  ; CHECK:   [[MVE_VORR7:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR6]], [[MVE_VORR6]], 1, [[MVE_VPNOT6]], undef [[MVE_VORR7]]
  ; CHECK:   tBX_RET 14 /* CC::al */, $noreg, implicit %1:mqpr
  bb.0:
    ;
    ; Tests that, if the result of the VCMP is killed before the
    ; second VCMP (that will be converted into a VPNOT) is found,
    ; the kill flag is removed.
    ;
    %2:vccr = MVE_VCMPf16 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %3:mqpr = MVE_VORR %0:mqpr, %1:mqpr, 1,  killed %2:vccr, undef %3:mqpr
    %4:vccr = MVE_VCMPf16 %0:mqpr, %1:mqpr, 11, 0, $noreg
  bb.1:
    ;
    ; Tests that, if the result of the VCMP that has been replaced with a
    ; VPNOT is killed (before the insertion of the second VPNOT),
    ; the kill flag is removed.
    ;
    %5:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %6:vccr = MVE_VCMPs32 %1:mqpr, %0:mqpr, 12, 0, $noreg
    %7:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, killed %6:vccr, undef %7:mqpr
    %8:mqpr = MVE_VORR %7:mqpr, %7:mqpr, 1, %5:vccr, undef %8:mqpr
  bb.2:
    ;
    ; Tests that the kill flag is removed when inserting a VPNOT for
    ; an instruction.
    ;
    %9:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %10:vccr = MVE_VCMPs32 %1:mqpr, %0:mqpr, 12, 0, $noreg
    %11:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, %10:vccr, undef %11:mqpr
    %12:mqpr = MVE_VORR %11:mqpr, %11:mqpr, 1, killed %9:vccr, undef %12:mqpr
  bb.3:
    ;
    ; Tests that the kill flag is correctly removed when replacing a use
    ; of the opposite VCCR value with the last VPNOT's result
    ;
    %13:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %14:vccr = MVE_VCMPs32 %1:mqpr, %0:mqpr, 12, 0, $noreg
    %15:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1,  %14:vccr, undef %15:mqpr
    %16:mqpr = MVE_VORR %15:mqpr, %15:mqpr, 1, %13:vccr, undef %16:mqpr
    %17:mqpr = MVE_VORR %16:mqpr, %16:mqpr, 1, killed %13:vccr, undef %17:mqpr
    tBX_RET 14, $noreg, implicit %0:mqpr
...
---
name:            predicated_vcmps
alignment:       4
body:             |
  ; CHECK-LABEL: name: predicated_vcmps
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   [[MVE_VCMPi16_:%[0-9]+]]:vccr = MVE_VCMPi16 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VCMPi16_1:%[0-9]+]]:vccr = MVE_VCMPi16 %2:mqpr, %1:mqpr, 12, 1, [[MVE_VCMPi16_]]
  ; CHECK:   [[MVE_VCMPi16_2:%[0-9]+]]:vccr = MVE_VCMPi16 %1:mqpr, %2:mqpr, 10, 1, [[MVE_VCMPi16_]]
  ; CHECK: bb.1:
  ; CHECK:   successors: %bb.2(0x80000000)
  ; CHECK:   [[MVE_VCMPi32_:%[0-9]+]]:vccr = MVE_VCMPi32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VCMPi32_1:%[0-9]+]]:vccr = MVE_VCMPi32 %2:mqpr, %1:mqpr, 12, 1, [[MVE_VCMPi32_]]
  ; CHECK:   [[MVE_VCMPi32_2:%[0-9]+]]:vccr = MVE_VCMPi32 %1:mqpr, %2:mqpr, 10, 1, [[MVE_VCMPi32_]]
  ; CHECK: bb.2:
  ; CHECK:   successors: %bb.3(0x80000000)
  ; CHECK:   [[MVE_VCMPf16_:%[0-9]+]]:vccr = MVE_VCMPf16 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VCMPf16_1:%[0-9]+]]:vccr = MVE_VCMPf16 %1:mqpr, %2:mqpr, 11, 1, [[MVE_VCMPf16_]]
  ; CHECK:   [[MVE_VCMPf16_2:%[0-9]+]]:vccr = MVE_VCMPf16 %1:mqpr, %2:mqpr, 10, 1, [[MVE_VCMPf16_]]
  ; CHECK: bb.3:
  ; CHECK:   successors: %bb.4(0x80000000)
  ; CHECK:   [[MVE_VCMPf32_:%[0-9]+]]:vccr = MVE_VCMPf32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VCMPf32_1:%[0-9]+]]:vccr = MVE_VCMPf32 %1:mqpr, %2:mqpr, 11, 1, [[MVE_VCMPf32_]]
  ; CHECK:   [[MVE_VCMPf32_2:%[0-9]+]]:vccr = MVE_VCMPf32 %1:mqpr, %2:mqpr, 10, 1, [[MVE_VCMPf32_]]
  ; CHECK: bb.4:
  ; CHECK:   successors: %bb.5(0x80000000)
  ; CHECK:   [[MVE_VCMPi16_3:%[0-9]+]]:vccr = MVE_VCMPi16 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VCMPi16_4:%[0-9]+]]:vccr = MVE_VCMPi16 %1:mqpr, %2:mqpr, 11, 1, [[MVE_VCMPi16_3]]
  ; CHECK:   [[MVE_VCMPi16_5:%[0-9]+]]:vccr = MVE_VCMPi16 %1:mqpr, %2:mqpr, 10, 1, [[MVE_VCMPi16_3]]
  ; CHECK: bb.5:
  ; CHECK:   [[MVE_VCMPi32_3:%[0-9]+]]:vccr = MVE_VCMPi32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VCMPi32_4:%[0-9]+]]:vccr = MVE_VCMPi32 %1:mqpr, %2:mqpr, 11, 1, [[MVE_VCMPi32_3]]
  ; CHECK:   [[MVE_VCMPi32_5:%[0-9]+]]:vccr = MVE_VCMPi32 %1:mqpr, %2:mqpr, 10, 1, [[MVE_VCMPi32_3]]
  ; CHECK:   tBX_RET 14 /* CC::al */, $noreg, implicit %1:mqpr
  ;
  ; Tests that predicated VCMPs are not replaced.
  ;
  bb.0:
    %2:vccr = MVE_VCMPi16 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %3:vccr = MVE_VCMPi16 %1:mqpr, %0:mqpr, 12, 1, %2:vccr
    %4:vccr = MVE_VCMPi16 %0:mqpr, %1:mqpr, 10, 1, %2:vccr

  bb.1:
    %5:vccr = MVE_VCMPi32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %6:vccr = MVE_VCMPi32 %1:mqpr, %0:mqpr, 12, 1, %5:vccr
    %7:vccr = MVE_VCMPi32 %0:mqpr, %1:mqpr, 10, 1, %5:vccr

  bb.2:
    %8:vccr = MVE_VCMPf16 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %9:vccr = MVE_VCMPf16 %0:mqpr, %1:mqpr, 11, 1, %8:vccr
    %10:vccr = MVE_VCMPf16 %0:mqpr, %1:mqpr, 10, 1, %8:vccr

  bb.3:
    %11:vccr = MVE_VCMPf32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %12:vccr = MVE_VCMPf32 %0:mqpr, %1:mqpr, 11, 1, %11:vccr
    %13:vccr = MVE_VCMPf32 %0:mqpr, %1:mqpr, 10, 1, %11:vccr

  bb.4:
    %14:vccr = MVE_VCMPi16 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %15:vccr = MVE_VCMPi16 %0:mqpr, %1:mqpr, 11, 1, %14:vccr
    %16:vccr = MVE_VCMPi16 %0:mqpr, %1:mqpr, 10, 1, %14:vccr

  bb.5:
    %17:vccr = MVE_VCMPi32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %18:vccr = MVE_VCMPi32 %0:mqpr, %1:mqpr, 11, 1, %17:vccr
    %19:vccr = MVE_VCMPi32 %0:mqpr, %1:mqpr, 10, 1, %17:vccr

    tBX_RET 14, $noreg, implicit %0:mqpr
...
---
name:            flt_with_swapped_operands
alignment:       4
body:             |
  ; CHECK-LABEL: name: flt_with_swapped_operands
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   [[MVE_VCMPf16_:%[0-9]+]]:vccr = MVE_VCMPf16 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VCMPf16_1:%[0-9]+]]:vccr = MVE_VCMPf16 %2:mqpr, %1:mqpr, 12, 0, $noreg
  ; CHECK: bb.1:
  ; CHECK:   successors: %bb.2(0x80000000)
  ; CHECK:   [[MVE_VCMPf32_:%[0-9]+]]:vccr = MVE_VCMPf32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VCMPf32_1:%[0-9]+]]:vccr = MVE_VCMPf32 %2:mqpr, %1:mqpr, 12, 0, $noreg
  ; CHECK: bb.2:
  ; CHECK:   successors: %bb.3(0x80000000)
  ; CHECK:   [[MVE_VCMPf16_2:%[0-9]+]]:vccr = MVE_VCMPf16 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VCMPf16_3:%[0-9]+]]:vccr = MVE_VCMPf16 %2:mqpr, %1:mqpr, 11, 0, $noreg
  ; CHECK: bb.3:
  ; CHECK:   [[MVE_VCMPf32_2:%[0-9]+]]:vccr = MVE_VCMPf32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VCMPf32_3:%[0-9]+]]:vccr = MVE_VCMPf32 %2:mqpr, %1:mqpr, 11, 0, $noreg
  ; CHECK:   tBX_RET 14 /* CC::al */, $noreg, implicit %1:mqpr
  ;
  ; Tests that float VCMPs with an opposite condition and swapped operands
  ; are not transformed into VPNOTs.
  ;
  bb.0:
    %2:vccr = MVE_VCMPf16 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %3:vccr = MVE_VCMPf16 %1:mqpr, %0:mqpr, 12, 0, $noreg

  bb.1:
    %4:vccr = MVE_VCMPf32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %5:vccr = MVE_VCMPf32 %1:mqpr, %0:mqpr, 12, 0, $noreg

  bb.2:
    %6:vccr = MVE_VCMPf16 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %7:vccr = MVE_VCMPf16 %1:mqpr, %0:mqpr, 11, 0, $noreg

  bb.3:
    %8:vccr = MVE_VCMPf32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %9:vccr = MVE_VCMPf32 %1:mqpr, %0:mqpr, 11, 0, $noreg
    tBX_RET 14, $noreg, implicit %0:mqpr
...
---
name:            different_opcodes
alignment:       4
body:             |
  ;
  ; Tests that a "VPNOT-like VCMP" with an opcode different from the previous VCMP
  ; is not transformed into a VPNOT.
  ;
  bb.0:
    ; CHECK-LABEL: name: different_opcodes
    ; CHECK: [[MVE_VCMPf16_:%[0-9]+]]:vccr = MVE_VCMPf16 %1:mqpr, %2:mqpr, 0, 0, $noreg
    ; CHECK: [[MVE_VCMPs32_:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 1, 1, $noreg
    ; CHECK: tBX_RET 14 /* CC::al */, $noreg, implicit %1:mqpr
    %2:vccr = MVE_VCMPf16 %0:mqpr, %1:mqpr, 0, 0, $noreg
    %3:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 1, 1, $noreg
    tBX_RET 14, $noreg, implicit %0:mqpr
...
---
name:            incorrect_condcode
alignment:       4
body:             |
  ; CHECK-LABEL: name: incorrect_condcode
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   [[MVE_VCMPs32_:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VCMPs32_1:%[0-9]+]]:vccr = MVE_VCMPs32 %2:mqpr, %1:mqpr, 11, 0, $noreg
  ; CHECK: bb.1:
  ; CHECK:   [[MVE_VCMPs32_2:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VCMPs32_3:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 12, 0, $noreg
  ; CHECK:   tBX_RET 14 /* CC::al */, $noreg, implicit %1:mqpr
  ;
  ; Tests that a VCMP is not transformed into a VPNOT if its CondCode is not
  ; the opposite CondCode.
  ;
  bb.0:
    %2:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %3:vccr = MVE_VCMPs32 %1:mqpr, %0:mqpr, 11, 0, $noreg
  bb.1:
    %4:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %5:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 12, 0, $noreg
    tBX_RET 14, $noreg, implicit %0:mqpr
...
---
name:            vpr_or_vccr_write_between_vcmps
alignment:       4
body:             |
  ;
  ; Tests that a "VPNOT-like VCMP" will not be transformed into a VPNOT if
  ; VCCR/VPR is written to in-between.
  ;
  bb.0:
    ; CHECK-LABEL: name: vpr_or_vccr_write_between_vcmps
    ; CHECK: [[MVE_VCMPs32_:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 12, 0, $noreg
    ; CHECK: [[MVE_VPNOT:%[0-9]+]]:vccr = MVE_VPNOT killed [[MVE_VCMPs32_]], 0, $noreg
    ; CHECK: [[MVE_VCMPs32_1:%[0-9]+]]:vccr = MVE_VCMPs32 %2:mqpr, %1:mqpr, 10, 0, $noreg
    ; CHECK: tBX_RET 14 /* CC::al */, $noreg, implicit %1:mqpr
    %2:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 12, 0, $noreg
    %3:vccr = MVE_VPNOT killed %2:vccr, 0, $noreg
    %4:vccr = MVE_VCMPs32 %1:mqpr, %0:mqpr, 10, 0, $noreg
    tBX_RET 14, $noreg, implicit %0:mqpr
...
---
name:            spill_prevention
alignment:       4
body:             |
  ; CHECK-LABEL: name: spill_prevention
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   [[MVE_VCMPs32_:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_]], 0, $noreg
  ; CHECK:   [[MVE_VORR:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VPNOT]], undef [[MVE_VORR]]
  ; CHECK:   [[MVE_VPNOT1:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT]], 0, $noreg
  ; CHECK:   [[MVE_VORR1:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR]], [[MVE_VORR]], 1, [[MVE_VPNOT1]], undef [[MVE_VORR1]]
  ; CHECK:   [[MVE_VPNOT2:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT1]], 0, $noreg
  ; CHECK:   [[MVE_VORR2:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR1]], [[MVE_VORR1]], 1, [[MVE_VPNOT2]], undef [[MVE_VORR2]]
  ; CHECK:   [[MVE_VPNOT3:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT2]], 0, $noreg
  ; CHECK:   [[MVE_VORR3:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR2]], [[MVE_VORR2]], 1, [[MVE_VPNOT3]], undef [[MVE_VORR3]]
  ; CHECK:   [[MVE_VPNOT4:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT3]], 0, $noreg
  ; CHECK:   [[MVE_VORR4:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR3]], [[MVE_VORR3]], 1, [[MVE_VPNOT4]], undef [[MVE_VORR4]]
  ; CHECK: bb.1:
  ; CHECK:   successors: %bb.2(0x80000000)
  ; CHECK:   [[MVE_VCMPs32_1:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT5:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_1]], 0, $noreg
  ; CHECK:   [[MVE_VORR5:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VPNOT5]], undef [[MVE_VORR5]]
  ; CHECK:   [[MVE_VORR6:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR5]], [[MVE_VORR5]], 0, $noreg, undef [[MVE_VORR6]]
  ; CHECK:   [[MVE_VPNOT6:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT5]], 0, $noreg
  ; CHECK:   [[MVE_VORR7:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR6]], [[MVE_VORR6]], 1, [[MVE_VPNOT6]], undef [[MVE_VORR7]]
  ; CHECK:   [[MVE_VORR8:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR7]], [[MVE_VORR7]], 0, $noreg, undef [[MVE_VORR8]]
  ; CHECK:   [[MVE_VPNOT7:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT6]], 0, $noreg
  ; CHECK:   [[MVE_VORR9:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR8]], [[MVE_VORR8]], 1, [[MVE_VPNOT7]], undef [[MVE_VORR9]]
  ; CHECK: bb.2:
  ; CHECK:   successors: %bb.3(0x80000000)
  ; CHECK:   [[MVE_VCMPs32_2:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT8:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_2]], 0, $noreg
  ; CHECK:   [[MVE_VORR10:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VPNOT8]], undef [[MVE_VORR10]]
  ; CHECK:   [[MVE_VORR11:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR10]], [[MVE_VORR10]], 1, [[MVE_VPNOT8]], undef [[MVE_VORR11]]
  ; CHECK:   [[MVE_VPNOT9:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT8]], 0, $noreg
  ; CHECK:   [[MVE_VORR12:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR11]], [[MVE_VORR11]], 1, [[MVE_VPNOT9]], undef [[MVE_VORR12]]
  ; CHECK:   [[MVE_VORR13:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR12]], [[MVE_VORR12]], 1, [[MVE_VPNOT9]], undef [[MVE_VORR13]]
  ; CHECK:   [[MVE_VPNOT10:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT9]], 0, $noreg
  ; CHECK:   [[MVE_VORR14:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR13]], [[MVE_VORR13]], 1, [[MVE_VPNOT10]], undef [[MVE_VORR14]]
  ; CHECK:   [[MVE_VORR15:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR14]], [[MVE_VORR14]], 1, [[MVE_VPNOT10]], undef [[MVE_VORR15]]
  ; CHECK:   [[MVE_VPNOT11:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT10]], 0, $noreg
  ; CHECK:   [[MVE_VORR16:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR15]], [[MVE_VORR15]], 1, [[MVE_VPNOT11]], undef [[MVE_VORR16]]
  ; CHECK:   [[MVE_VORR17:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR16]], [[MVE_VORR16]], 1, [[MVE_VPNOT11]], undef [[MVE_VORR17]]
  ; CHECK: bb.3:
  ; CHECK:   successors: %bb.4(0x80000000)
  ; CHECK:   [[MVE_VCMPs32_3:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT12:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_3]], 0, $noreg
  ; CHECK:   [[MVE_VORR18:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VPNOT12]], undef [[MVE_VORR11]]
  ; CHECK:   [[MVE_VPNOT13:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT12]], 0, $noreg
  ; CHECK:   [[MVE_VORR19:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VPNOT13]], undef [[MVE_VORR19]]
  ; CHECK: bb.4:
  ; CHECK:   [[VMSR_P0_:%[0-9]+]]:vccr = VMSR_P0 killed %32:gpr, 14 /* CC::al */, $noreg
  ; CHECK:   [[MVE_VPNOT14:%[0-9]+]]:vccr = MVE_VPNOT [[VMSR_P0_]], 0, $noreg
  ; CHECK:   [[MVE_VORR20:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR19]], [[MVE_VORR19]], 1, [[MVE_VPNOT14]], undef [[MVE_VORR20]]
  ; CHECK:   [[MVE_VPNOT15:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT14]], 0, $noreg
  ; CHECK:   [[MVE_VORR21:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR20]], [[MVE_VORR20]], 1, [[MVE_VPNOT15]], undef [[MVE_VORR21]]
  ; CHECK:   [[MVE_VPNOT16:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT15]], 0, $noreg
  ; CHECK:   [[MVE_VORR22:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR21]], [[MVE_VORR21]], 1, [[MVE_VPNOT16]], undef [[MVE_VORR22]]
  ; CHECK:   [[MVE_VPNOT17:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT16]], 0, $noreg
  ; CHECK:   [[MVE_VORR23:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR22]], [[MVE_VORR22]], 1, [[MVE_VPNOT17]], undef [[MVE_VORR23]]
  ; CHECK:   [[MVE_VPNOT18:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT17]], 0, $noreg
  ; CHECK:   [[MVE_VORR24:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR23]], [[MVE_VORR23]], 1, [[MVE_VPNOT18]], undef [[MVE_VORR24]]
  ; CHECK:   tBX_RET 14 /* CC::al */, $noreg, implicit %1:mqpr
  bb.0:
    ;
    ; Basic test case
    ;
    %2:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %3:vccr = MVE_VPNOT %2:vccr, 0, $noreg
    %4:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, %3:vccr, undef %4:mqpr
    %5:mqpr = MVE_VORR %4:mqpr, %4:mqpr, 1, %2:vccr, undef %5:mqpr
    %6:mqpr = MVE_VORR %5:mqpr, %5:mqpr, 1, %3:vccr, undef %6:mqpr
    %7:mqpr = MVE_VORR %6:mqpr, %6:mqpr, 1, %2:vccr, undef %7:mqpr
    %8:mqpr = MVE_VORR %7:mqpr, %7:mqpr, 1, %3:vccr, undef %8:mqpr
  bb.1:
    ;
    ; Tests that unpredicated instructions in the middle of the block
    ; don't interfere with the replacement.
    ;
    %9:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %10:vccr = MVE_VPNOT %9:vccr, 0, $noreg
    %11:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, %10:vccr, undef %11:mqpr
    %12:mqpr = MVE_VORR %11:mqpr, %11:mqpr, 0, $noreg, undef %12:mqpr
    %13:mqpr = MVE_VORR %12:mqpr, %12:mqpr, 1, %9:vccr, undef %13:mqpr
    %14:mqpr = MVE_VORR %13:mqpr, %13:mqpr, 0, $noreg, undef %14:mqpr
    %15:mqpr = MVE_VORR %14:mqpr, %14:mqpr, 1, %10:vccr, undef %15:mqpr
  bb.2:
    ;
    ; Tests that all uses of the register are replaced, even when it's used
    ; multiple times in a row.
    ;
    %16:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %17:vccr = MVE_VPNOT %16:vccr, 0, $noreg
    %18:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, %17:vccr, undef %18:mqpr
    %19:mqpr = MVE_VORR %18:mqpr, %18:mqpr, 1, %17:vccr, undef %19:mqpr
    %20:mqpr = MVE_VORR %19:mqpr, %19:mqpr, 1, %16:vccr, undef %20:mqpr
    %21:mqpr = MVE_VORR %20:mqpr, %20:mqpr, 1, %16:vccr, undef %21:mqpr
    %22:mqpr = MVE_VORR %21:mqpr, %21:mqpr, 1, %17:vccr, undef %22:mqpr
    %23:mqpr = MVE_VORR %22:mqpr, %22:mqpr, 1, %17:vccr, undef %23:mqpr
    %24:mqpr = MVE_VORR %23:mqpr, %23:mqpr, 1, %16:vccr, undef %24:mqpr
    %25:mqpr = MVE_VORR %24:mqpr, %24:mqpr, 1, %16:vccr, undef %25:mqpr
  bb.3:
    ;
    ; Tests that already present VPNOTs are "registered" by the pass so
    ; it does not insert a useless VPNOT.
    ;
    %26:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %27:vccr = MVE_VPNOT %26:vccr, 0, $noreg
    %28:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, %27:vccr, undef %19:mqpr
    %29:vccr = MVE_VPNOT %27:vccr, 0, $noreg
    %30:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, %26:vccr, undef %30:mqpr
  bb.4:
    ;
    ; Tests that the pass works with instructions other than vcmp.
    ;
    %32:vccr = VMSR_P0 killed %31:gpr, 14, $noreg
    %33:vccr = MVE_VPNOT %32:vccr, 0, $noreg
    %34:mqpr = MVE_VORR %30:mqpr, %30:mqpr, 1, %33:vccr, undef %34:mqpr
    %35:mqpr = MVE_VORR %34:mqpr, %34:mqpr, 1, %32:vccr, undef %35:mqpr
    %36:mqpr = MVE_VORR %35:mqpr, %35:mqpr, 1, %33:vccr, undef %36:mqpr
    %37:mqpr = MVE_VORR %36:mqpr, %36:mqpr, 1, %32:vccr, undef %37:mqpr
    %38:mqpr = MVE_VORR %37:mqpr, %37:mqpr, 1, %33:vccr, undef %38:mqpr
    tBX_RET 14, $noreg, implicit %0:mqpr
...
---
name:            spill_prevention_multi
alignment:       4
body:             |
  bb.0:
    ;
    ; Tests that multiple groups of predicated instructions in the same basic block are optimized.
    ;
    ; CHECK-LABEL: name: spill_prevention_multi
    ; CHECK: [[MVE_VCMPs32_:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
    ; CHECK: [[MVE_VPNOT:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_]], 0, $noreg
    ; CHECK: [[MVE_VORR:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VPNOT]], undef [[MVE_VORR]]
    ; CHECK: [[MVE_VPNOT1:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT]], 0, $noreg
    ; CHECK: [[MVE_VORR1:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR]], [[MVE_VORR]], 1, [[MVE_VPNOT1]], undef [[MVE_VORR1]]
    ; CHECK: [[MVE_VPNOT2:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT1]], 0, $noreg
    ; CHECK: [[MVE_VORR2:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR1]], [[MVE_VORR1]], 1, [[MVE_VPNOT2]], undef [[MVE_VORR2]]
    ; CHECK: [[MVE_VPNOT3:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT2]], 0, $noreg
    ; CHECK: [[MVE_VORR3:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR2]], [[MVE_VORR2]], 1, [[MVE_VPNOT3]], undef [[MVE_VORR3]]
    ; CHECK: [[MVE_VCMPs32_1:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
    ; CHECK: [[MVE_VORR4:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VCMPs32_1]], undef [[MVE_VORR4]]
    ; CHECK: [[MVE_VPNOT4:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_1]], 0, $noreg
    ; CHECK: [[MVE_VORR5:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR4]], [[MVE_VORR4]], 1, [[MVE_VPNOT4]], undef [[MVE_VORR5]]
    ; CHECK: [[MVE_VPNOT5:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT4]], 0, $noreg
    ; CHECK: [[MVE_VORR6:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR5]], [[MVE_VORR5]], 1, [[MVE_VPNOT5]], undef [[MVE_VORR6]]
    ; CHECK: [[MVE_VPNOT6:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT5]], 0, $noreg
    ; CHECK: [[MVE_VORR7:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR6]], [[MVE_VORR6]], 1, [[MVE_VPNOT6]], undef [[MVE_VORR7]]
    ; CHECK: [[MVE_VCMPs32_2:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
    ; CHECK: [[MVE_VPNOT7:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_2]], 0, $noreg
    ; CHECK: [[MVE_VORR8:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VPNOT7]], undef [[MVE_VORR8]]
    ; CHECK: [[MVE_VPNOT8:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT7]], 0, $noreg
    ; CHECK: [[MVE_VORR9:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR8]], [[MVE_VORR8]], 1, [[MVE_VPNOT8]], undef [[MVE_VORR9]]
    ; CHECK: [[MVE_VPNOT9:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT8]], 0, $noreg
    ; CHECK: [[MVE_VORR10:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR9]], [[MVE_VORR9]], 1, [[MVE_VPNOT9]], undef [[MVE_VORR10]]
    ; CHECK: [[MVE_VPNOT10:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT9]], 0, $noreg
    ; CHECK: [[MVE_VORR11:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR10]], [[MVE_VORR10]], 1, [[MVE_VPNOT10]], undef [[MVE_VORR11]]
    ; CHECK: tBX_RET 14 /* CC::al */, $noreg, implicit %1:mqpr
    %2:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %3:vccr = MVE_VPNOT %2:vccr, 0, $noreg
    %4:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, %3:vccr, undef %4:mqpr
    %5:mqpr = MVE_VORR %4:mqpr, %4:mqpr, 1, %2:vccr, undef %5:mqpr
    %6:mqpr = MVE_VORR %5:mqpr, %5:mqpr, 1, %3:vccr, undef %6:mqpr
    %7:mqpr = MVE_VORR %6:mqpr, %6:mqpr, 1, %2:vccr, undef %7:mqpr
    %8:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %9:vccr = MVE_VPNOT %8:vccr, 0, $noreg
    %10:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, %8:vccr, undef %10:mqpr
    %11:mqpr = MVE_VORR %10:mqpr, %10:mqpr, 1, %9:vccr, undef %11:mqpr
    %12:mqpr = MVE_VORR %11:mqpr, %11:mqpr, 1, %8:vccr, undef %12:mqpr
    %13:mqpr = MVE_VORR %12:mqpr, %12:mqpr, 1, %9:vccr, undef %13:mqpr
    %14:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %15:vccr = MVE_VPNOT %14:vccr, 0, $noreg
    %16:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, %15:vccr, undef %16:mqpr
    %17:mqpr = MVE_VORR %16:mqpr, %16:mqpr, 1, %14:vccr, undef %17:mqpr
    %18:mqpr = MVE_VORR %17:mqpr, %17:mqpr, 1, %15:vccr, undef %18:mqpr
    %19:mqpr = MVE_VORR %18:mqpr, %18:mqpr, 1, %14:vccr, undef %19:mqpr
    tBX_RET 14, $noreg, implicit %0:mqpr
...
---
name:            spill_prevention_predicated_vpnots
alignment:       4
body:             |
  ; CHECK-LABEL: name: spill_prevention_predicated_vpnots
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   [[MVE_VCMPs32_:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_]], 1, [[MVE_VCMPs32_]]
  ; CHECK:   [[MVE_VORR:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VCMPs32_]], undef [[MVE_VORR]]
  ; CHECK:   [[MVE_VORR1:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR]], [[MVE_VORR]], 1, [[MVE_VPNOT]], undef [[MVE_VORR1]]
  ; CHECK: bb.1:
  ; CHECK:   [[MVE_VCMPs32_1:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT1:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_1]], 1, [[MVE_VCMPs32_1]]
  ; CHECK:   [[MVE_VORR2:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %2:mqpr, 1, [[MVE_VPNOT1]], undef [[MVE_VORR2]]
  ; CHECK:   [[MVE_VORR2:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VCMPs32_1]], undef [[MVE_VORR2]]
  ; CHECK:   [[MVE_VORR2:%[0-9]+]]:mqpr = MVE_VORR %2:mqpr, %1:mqpr, 1, [[MVE_VPNOT1]], undef [[MVE_VORR2]]
  ; CHECK:   tBX_RET 14 /* CC::al */, $noreg, implicit %1:mqpr
  ;
  ; Tests that predicated VPNOTs are not considered by this pass
  ; (This means that these examples should not be optimized.)
  ;
  bb.0:
    %2:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %3:vccr = MVE_VPNOT %2:vccr, 1, %2:vccr
    %4:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, %2:vccr, undef %4:mqpr
    %5:mqpr = MVE_VORR %4:mqpr, %4:mqpr, 1, %3:vccr, undef %5:mqpr
  bb.1:
    %12:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %13:vccr = MVE_VPNOT %12:vccr, 1, %12:vccr
    %14:mqpr = MVE_VORR %0:mqpr, %1:mqpr, 1, %13:vccr, undef %14:mqpr
    %15:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, %12:vccr, undef %15:mqpr
    %16:mqpr = MVE_VORR %1:mqpr, %0:mqpr, 1, %13:vccr, undef %16:mqpr
    tBX_RET 14, $noreg, implicit %0:mqpr
...
---
name:            spill_prevention_copies
alignment:       4
body:             |
  ;
  ; Tests that VPNOTs are replaced by a COPY instead of inserting a VPNOT
  ; (which would result in a double VPNOT).
  ;
  bb.0:
    ; CHECK-LABEL: name: spill_prevention_copies
    ; CHECK: [[MVE_VCMPs32_:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
    ; CHECK: [[MVE_VPNOT:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_]], 0, $noreg
    ; CHECK: [[MVE_VORR:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VPNOT]], undef [[MVE_VORR]]
    ; CHECK: [[MVE_VORR1:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VPNOT]], undef [[MVE_VORR1]]
    ; CHECK: [[MVE_VORR2:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VPNOT]], undef [[MVE_VORR2]]
    ; CHECK: tBX_RET 14 /* CC::al */, $noreg, implicit %1:mqpr
    %2:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %3:vccr = MVE_VPNOT %2:vccr, 0, $noreg
    %4:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, %3:vccr, undef %4:mqpr
    %5:vccr = MVE_VPNOT %2:vccr, 0, $noreg
    %6:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, %5:vccr, undef %6:mqpr
    %7:vccr = MVE_VPNOT %2:vccr, 0, $noreg
    %8:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, %7:vccr, undef %8:mqpr
    tBX_RET 14, $noreg, implicit %0:mqpr
...
---
name:            spill_prevention_vpnot_reordering
alignment:       4
body:             |
  ; CHECK-LABEL: name: spill_prevention_vpnot_reordering
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   [[MVE_VCMPs32_:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VORR:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %2:mqpr, 1, [[MVE_VCMPs32_]], undef [[MVE_VORR]]
  ; CHECK:   [[MVE_VORR1:%[0-9]+]]:mqpr = MVE_VORR %2:mqpr, %1:mqpr, 1, [[MVE_VCMPs32_]], undef [[MVE_VORR1]]
  ; CHECK:   [[MVE_VPNOT:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_]], 0, $noreg
  ; CHECK:   [[MVE_VORR2:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR]], [[MVE_VORR1]], 1, [[MVE_VPNOT]], undef [[MVE_VORR2]]
  ; CHECK: bb.1:
  ; CHECK:   [[MVE_VCMPs32_1:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VORR3:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %2:mqpr, 1, [[MVE_VCMPs32_1]], undef [[MVE_VORR3]]
  ; CHECK:   [[MVE_VORR4:%[0-9]+]]:mqpr = MVE_VORR %2:mqpr, %1:mqpr, 1, [[MVE_VCMPs32_1]], undef [[MVE_VORR4]]
  ; CHECK:   [[MVE_VPNOT1:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_1]], 0, $noreg
  ; CHECK:   [[MVE_VORR5:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR3]], [[MVE_VORR4]], 1, [[MVE_VPNOT1]], undef [[MVE_VORR5]]
  ; CHECK:   tBX_RET 14 /* CC::al */, $noreg, implicit %1:mqpr
  ;
  ; Tests that the first VPNOT is moved down when the result of the VCMP is used
  ; before the first usage of the VPNOT's result.
  ;
  bb.0:
    %2:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %3:vccr = MVE_VPNOT %2:vccr, 0, $noreg
    %4:mqpr = MVE_VORR %0:mqpr, %1:mqpr, 1, %2:vccr, undef %4:mqpr
    %5:mqpr = MVE_VORR %1:mqpr, %0:mqpr, 1, %2:vccr, undef %5:mqpr
    %6:mqpr = MVE_VORR %4:mqpr, %5:mqpr, 1, %3:vccr, undef %6:mqpr
  bb.1:
    ; Test again with a "killed" flag to check if it's properly removed.
    %7:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %8:vccr = MVE_VPNOT %7:vccr, 0, $noreg
    %9:mqpr = MVE_VORR %0:mqpr, %1:mqpr, 1, %7:vccr, undef %9:mqpr
    %10:mqpr = MVE_VORR %1:mqpr, %0:mqpr, 1, killed %7:vccr, undef %10:mqpr
    %11:mqpr = MVE_VORR %9:mqpr, %10:mqpr, 1, %8:vccr, undef %11:mqpr
    tBX_RET 14, $noreg, implicit %0:mqpr
...
---
name:            spill_prevention_stop_after_write
alignment:       4
body:             |
  ; CHECK-LABEL: name: spill_prevention_stop_after_write
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   [[MVE_VCMPs32_:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_]], 0, $noreg
  ; CHECK:   [[MVE_VORR:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VPNOT]], undef [[MVE_VORR]]
  ; CHECK:   [[MVE_VPNOT1:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT]], 0, $noreg
  ; CHECK:   [[MVE_VORR1:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR]], [[MVE_VORR]], 1, [[MVE_VPNOT1]], undef [[MVE_VORR1]]
  ; CHECK:   [[VMSR_P0_:%[0-9]+]]:vccr = VMSR_P0 killed %7:gpr, 14 /* CC::al */, $noreg
  ; CHECK:   [[MVE_VORR2:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR1]], [[MVE_VORR1]], 1, [[MVE_VCMPs32_]], undef [[MVE_VORR2]]
  ; CHECK:   [[MVE_VORR3:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR2]], [[MVE_VORR2]], 1, [[MVE_VPNOT]], undef [[MVE_VORR3]]
  ; CHECK: bb.1:
  ; CHECK:   [[MVE_VCMPs32_1:%[0-9]+]]:vccr = MVE_VCMPs32 %1:mqpr, %2:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VPNOT2:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VCMPs32_1]], 0, $noreg
  ; CHECK:   [[MVE_VORR4:%[0-9]+]]:mqpr = MVE_VORR %1:mqpr, %1:mqpr, 1, [[MVE_VPNOT2]], undef [[MVE_VORR]]
  ; CHECK:   [[MVE_VPNOT3:%[0-9]+]]:vccr = MVE_VPNOT [[MVE_VPNOT2]], 0, $noreg
  ; CHECK:   [[MVE_VORR5:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR4]], [[MVE_VORR4]], 1, [[MVE_VPNOT3]], undef [[MVE_VORR5]]
  ; CHECK:   [[MVE_VCMPs32_2:%[0-9]+]]:vccr = MVE_VCMPs32 %2:mqpr, %1:mqpr, 10, 0, $noreg
  ; CHECK:   [[MVE_VORR6:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR5]], [[MVE_VORR5]], 1, [[MVE_VPNOT2]], undef [[MVE_VORR6]]
  ; CHECK:   [[MVE_VORR7:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR6]], [[MVE_VORR6]], 1, [[MVE_VCMPs32_1]], undef [[MVE_VORR7]]
  ; CHECK:   [[MVE_VORR8:%[0-9]+]]:mqpr = MVE_VORR [[MVE_VORR7]], [[MVE_VORR7]], 1, [[MVE_VPNOT2]], undef [[MVE_VORR8]]
  ;
  ; Tests that the optimisation stops when it sees an instruction
  ; that writes to VPR, and that doesn't use any of the registers we care about.
  ;
  bb.0:
    %2:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %3:vccr = MVE_VPNOT %2:vccr, 0, $noreg
    %4:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, %3:vccr, undef %4:mqpr
    %5:mqpr = MVE_VORR %4:mqpr, %4:mqpr, 1, %2:vccr, undef %5:mqpr
    %6:vccr = VMSR_P0 killed %20:gpr, 14, $noreg
    %7:mqpr = MVE_VORR %5:mqpr, %5:mqpr, 1, %2:vccr, undef %7:mqpr
    %8:mqpr = MVE_VORR %7:mqpr, %7:mqpr, 1, %3:vccr, undef %8:mqpr
  bb.1:
    %9:vccr = MVE_VCMPs32 %0:mqpr, %1:mqpr, 10, 0, $noreg
    %10:vccr = MVE_VPNOT %9:vccr, 0, $noreg
    %11:mqpr = MVE_VORR %0:mqpr, %0:mqpr, 1, %10:vccr, undef %4:mqpr
    %12:mqpr = MVE_VORR %11:mqpr, %11:mqpr, 1, %9:vccr, undef %12:mqpr
    %13:vccr = MVE_VCMPs32 %1:mqpr, %0:mqpr, 10, 0, $noreg
    %14:mqpr = MVE_VORR %12:mqpr, %12:mqpr, 1, %10:vccr, undef %14:mqpr
    %15:mqpr = MVE_VORR %14:mqpr, %14:mqpr, 1, %9:vccr, undef %15:mqpr
    %16:mqpr = MVE_VORR %15:mqpr, %15:mqpr, 1, %10:vccr, undef %16:mqpr
...