# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=thumbv8.1m.main-none-eabi -mattr=+mve -simplify-mir -run-pass=finalize-isel %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 = "arm-arm-none-eabi"

  ; Function Attrs: argmemonly nofree nosync nounwind willreturn
  declare void @llvm.memcpy.p0i8.p0i8.i32(i8* noalias nocapture writeonly, i8* noalias nocapture readonly, i32, i1 immarg)

  define void @test1(i32* noalias %X, i32* noalias readonly %Y, i32 %n) {
  entry:
    %0 = bitcast i32* %X to i8*
    %1 = bitcast i32* %Y to i8*
    call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %0, i8* align 4 %1, i32 %n, i1 false)
    ret void
  }

  define void @test2(i32* noalias %X, i32* noalias readonly %Y, i32 %n) {
  entry:
    %cmp6 = icmp sgt i32 %n, 0
    br i1 %cmp6, label %for.body.preheader, label %for.cond.cleanup

  for.body.preheader:                               ; preds = %entry
    %X.bits = bitcast i32* %X to i8*
    %Y.bits = bitcast i32* %Y to i8*
    call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %X.bits, i8* align 4 %Y.bits, i32 %n, i1 false)
    br label %for.cond.cleanup

  for.cond.cleanup:                                 ; preds = %for.body.preheader, %entry
    ret void
  }

...
---
name:            test1
tracksRegLiveness: true
body:             |
  bb.0.entry:
    liveins: $r0, $r1, $r2

    ; CHECK-LABEL: name: test1
    ; CHECK: liveins: $r0, $r1, $r2
    ; CHECK: [[COPY:%[0-9]+]]:rgpr = COPY $r2
    ; CHECK: [[COPY1:%[0-9]+]]:rgpr = COPY $r1
    ; CHECK: [[COPY2:%[0-9]+]]:rgpr = COPY $r0
    ; CHECK: [[t2ADDri:%[0-9]+]]:rgpr = t2ADDri [[COPY]], 15, 14 /* CC::al */, $noreg, $noreg
    ; CHECK: [[t2BICri:%[0-9]+]]:rgpr = t2BICri killed [[t2ADDri]], 16, 14 /* CC::al */, $noreg, $noreg
    ; CHECK: [[t2LSRri:%[0-9]+]]:gprlr = t2LSRri killed [[t2BICri]], 4, 14 /* CC::al */, $noreg, $noreg
    ; CHECK: [[t2WhileLoopSetup:%[0-9]+]]:gprlr = t2WhileLoopSetup killed [[t2LSRri]]
    ; CHECK: t2WhileLoopStart [[t2WhileLoopSetup]], %bb.2, implicit-def $cpsr
    ; CHECK: .1:
    ; CHECK: [[PHI:%[0-9]+]]:rgpr = PHI [[COPY1]], %bb.0, %8, %bb.1
    ; CHECK: [[PHI1:%[0-9]+]]:rgpr = PHI [[COPY2]], %bb.0, %10, %bb.1
    ; CHECK: [[PHI2:%[0-9]+]]:gprlr = PHI [[t2WhileLoopSetup]], %bb.0, %12, %bb.1
    ; CHECK: [[PHI3:%[0-9]+]]:rgpr = PHI [[COPY]], %bb.0, %14, %bb.1
    ; CHECK: [[MVE_VCTP8_:%[0-9]+]]:vccr = MVE_VCTP8 [[PHI3]], 0, $noreg
    ; CHECK: [[t2SUBri:%[0-9]+]]:rgpr = t2SUBri [[PHI3]], 16, 14 /* CC::al */, $noreg, $noreg
    ; CHECK: [[MVE_VLDRBU8_post:%[0-9]+]]:rgpr, [[MVE_VLDRBU8_post1:%[0-9]+]]:mqpr = MVE_VLDRBU8_post [[PHI]], 16, 1, [[MVE_VCTP8_]]
    ; CHECK: [[MVE_VSTRBU8_post:%[0-9]+]]:rgpr = MVE_VSTRBU8_post killed [[MVE_VLDRBU8_post1]], [[PHI1]], 16, 1, [[MVE_VCTP8_]]
    ; CHECK: [[t2LoopDec:%[0-9]+]]:gprlr = t2LoopDec [[PHI2]], 1
    ; CHECK: t2LoopEnd [[t2LoopDec]], %bb.1, implicit-def $cpsr
    ; CHECK: t2B %bb.2, 14 /* CC::al */, $noreg
    ; CHECK: .2.entry:
    ; CHECK: tBX_RET 14 /* CC::al */, $noreg
    %2:rgpr = COPY $r2
    %1:rgpr = COPY $r1
    %0:rgpr = COPY $r0
    MVE_MEMCPYLOOPINST %0, %1, %2
    tBX_RET 14 /* CC::al */, $noreg

...
---
name:            test2
tracksRegLiveness: true
body:             |
  ; CHECK-LABEL: name: test2
  ; CHECK: bb.0.entry:
  ; CHECK:   successors: %bb.1(0x50000000), %bb.2(0x30000000)
  ; CHECK:   liveins: $r0, $r1, $r2
  ; CHECK:   [[COPY:%[0-9]+]]:rgpr = COPY $r2
  ; CHECK:   [[COPY1:%[0-9]+]]:rgpr = COPY $r1
  ; CHECK:   [[COPY2:%[0-9]+]]:rgpr = COPY $r0
  ; CHECK:   t2CMPri [[COPY]], 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK:   t2Bcc %bb.2, 11 /* CC::lt */, $cpsr
  ; CHECK:   t2B %bb.1, 14 /* CC::al */, $noreg
  ; CHECK: bb.1.for.body.preheader:
  ; CHECK:   [[t2ADDri:%[0-9]+]]:rgpr = t2ADDri [[COPY]], 15, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   [[t2BICri:%[0-9]+]]:rgpr = t2BICri killed [[t2ADDri]], 16, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   [[t2LSRri:%[0-9]+]]:gprlr = t2LSRri killed [[t2BICri]], 4, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   [[t2WhileLoopSetup:%[0-9]+]]:gprlr = t2WhileLoopSetup killed [[t2LSRri]]
  ; CHECK:   t2WhileLoopStart [[t2WhileLoopSetup]], %bb.4, implicit-def $cpsr
  ; CHECK: bb.3:
  ; CHECK:   [[PHI:%[0-9]+]]:rgpr = PHI [[COPY1]], %bb.1, %8, %bb.3
  ; CHECK:   [[PHI1:%[0-9]+]]:rgpr = PHI [[COPY2]], %bb.1, %10, %bb.3
  ; CHECK:   [[PHI2:%[0-9]+]]:gprlr = PHI [[t2WhileLoopSetup]], %bb.1, %12, %bb.3
  ; CHECK:   [[PHI3:%[0-9]+]]:rgpr = PHI [[COPY]], %bb.1, %14, %bb.3
  ; CHECK:   [[MVE_VCTP8_:%[0-9]+]]:vccr = MVE_VCTP8 [[PHI3]], 0, $noreg
  ; CHECK:   [[t2SUBri:%[0-9]+]]:rgpr = t2SUBri [[PHI3]], 16, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   [[MVE_VLDRBU8_post:%[0-9]+]]:rgpr, [[MVE_VLDRBU8_post1:%[0-9]+]]:mqpr = MVE_VLDRBU8_post [[PHI]], 16, 1, [[MVE_VCTP8_]]
  ; CHECK:   [[MVE_VSTRBU8_post:%[0-9]+]]:rgpr = MVE_VSTRBU8_post killed [[MVE_VLDRBU8_post1]], [[PHI1]], 16, 1, [[MVE_VCTP8_]]
  ; CHECK:   [[t2LoopDec:%[0-9]+]]:gprlr = t2LoopDec [[PHI2]], 1
  ; CHECK:   t2LoopEnd [[t2LoopDec]], %bb.3, implicit-def $cpsr
  ; CHECK:   t2B %bb.4, 14 /* CC::al */, $noreg
  ; CHECK: bb.4.for.body.preheader:
  ; CHECK:   t2B %bb.2, 14 /* CC::al */, $noreg
  ; CHECK: bb.2.for.cond.cleanup:
  ; CHECK:   tBX_RET 14 /* CC::al */, $noreg
  bb.0.entry:
    successors: %bb.1(0x50000000), %bb.2(0x30000000)
    liveins: $r0, $r1, $r2

    %2:rgpr = COPY $r2
    %1:rgpr = COPY $r1
    %0:rgpr = COPY $r0
    t2CMPri %2, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
    t2Bcc %bb.2, 11 /* CC::lt */, $cpsr
    t2B %bb.1, 14 /* CC::al */, $noreg

  bb.1.for.body.preheader:
    successors: %bb.2(0x80000000)

    MVE_MEMCPYLOOPINST %0, %1, %2

  bb.2.for.cond.cleanup:
    tBX_RET 14 /* CC::al */, $noreg

...