The Nest
Explore
0
Compiler projects using llvm 
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=thumbv8.1m.main -mattr=+mve -run-pass=arm-low-overhead-loops %s -o - | FileCheck %s
--- |
  define hidden void @vector_spill_in_loop() {
  entry:
    ret void
  }

  define hidden void @vector_spill_load_outside() {
  entry:
    ret void
  }
...
---
name:            vector_spill_in_loop
tracksRegLiveness: true
stack:
  - { id: 0, name: '', type: spill-slot, offset: -120, size: 16, alignment: 8,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
body:             |
  ; CHECK-LABEL: name: vector_spill_in_loop
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   liveins: $q0, $r1, $r2, $r3, $r4, $r5, $r7, $r8, $r10, $r11, $r12
  ; CHECK:   $r6 = tMOVr $r2, 14 /* CC::al */, $noreg
  ; CHECK:   $r0 = tMOVr $r12, 14 /* CC::al */, $noreg
  ; CHECK:   $lr = MVE_DLSTP_16 renamable $r3
  ; CHECK: bb.1:
  ; CHECK:   successors: %bb.1(0x7c000000), %bb.2(0x04000000)
  ; CHECK:   liveins: $lr, $q0, $r0, $r1, $r2, $r3, $r4, $r5, $r6, $r7, $r8, $r10, $r11, $r12
  ; CHECK:   renamable $r0, renamable $q6 = MVE_VLDRHU16_post killed renamable $r0, 16, 0, $noreg, $noreg
  ; CHECK:   renamable $q3 = MVE_VLDRHU16 renamable $r6, 0, 0, $noreg, $noreg
  ; CHECK:   renamable $q5 = MVE_VSHR_immu16 killed renamable $q3, 11, 0, $noreg, $noreg, undef renamable $q5
  ; CHECK:   MVE_VSTRWU32 killed renamable $q5, $sp, 80, 0, $noreg, $noreg :: (store (s128) into %stack.0, align 8)
  ; CHECK:   dead renamable $q7 = MVE_VLDRWU32 $sp, 80, 0, $noreg, $noreg :: (load (s128) from %stack.0, align 8)
  ; CHECK:   dead renamable $vpr = MVE_VCMPi16r killed renamable $q6, renamable $r8, 1, 0, killed $noreg, $noreg
  ; CHECK:   $lr = MVE_LETP killed renamable $lr, %bb.1
  ; CHECK: bb.2:
  ; CHECK:   successors: %bb.3(0x04000000), %bb.0(0x7c000000)
  ; CHECK:   liveins: $q0, $r1, $r2, $r3, $r4, $r5, $r7, $r8, $r10, $r11, $r12
  ; CHECK:   renamable $r0 = tLDRspi $sp, 1, 14 /* CC::al */, $noreg
  ; CHECK:   renamable $r10 = nuw t2ADDri killed renamable $r10, 1, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $r12 = t2ADDrs killed renamable $r12, killed renamable $r0, 10, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $r0 = tLDRspi $sp, 3, 14 /* CC::al */, $noreg
  ; CHECK:   renamable $r2 = t2ADDrs killed renamable $r2, killed renamable $r0, 10, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $r0 = tLDRspi $sp, 2, 14 /* CC::al */, $noreg
  ; CHECK:   tCMPhir renamable $r10, killed renamable $r0, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK:   tBcc %bb.0, 1 /* CC::ne */, killed $cpsr
  ; CHECK: bb.3:
  ; CHECK:   $sp = frame-destroy tADDspi $sp, 24, 14 /* CC::al */, $noreg
  ; CHECK:   $sp = frame-destroy VLDMDIA_UPD $sp, 14 /* CC::al */, $noreg, def $d8, def $d9, def $d10, def $d11, def $d12, def $d13, def $d14, def $d15
  ; CHECK:   $sp = frame-destroy tADDspi $sp, 1, 14 /* CC::al */, $noreg
  ; CHECK:   $sp = frame-destroy t2LDMIA_RET $sp, 14 /* CC::al */, $noreg, def $r4, def $r5, def $r6, def $r7, def $r8, def $r9, def $r10, def $r11, def $pc
  bb.0:
    successors: %bb.1(0x80000000)
    liveins: $q0, $r1, $r2, $r3, $r4, $r5, $r7, $r8, $r10, $r11, $r12

    $r6 = tMOVr $r2, 14 /* CC::al */, $noreg
    $r0 = tMOVr $r12, 14 /* CC::al */, $noreg
    $r9 = tMOVr $r3, 14 /* CC::al */, $noreg
    renamable $lr = t2DoLoopStartTP renamable $r1, renamable $r3

  bb.1:
    successors: %bb.1(0x7c000000), %bb.2(0x04000000)
    liveins: $lr, $q0, $r0, $r1, $r2, $r3, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11, $r12

    renamable $vpr = MVE_VCTP16 renamable $r9, 0, $noreg, $noreg
    MVE_VPST 8, implicit $vpr
    renamable $r0, renamable $q6 = MVE_VLDRHU16_post killed renamable $r0, 16, 1, renamable $vpr, $noreg
    renamable $q3 = MVE_VLDRHU16 renamable $r6, 0, 1, renamable $vpr, $noreg
    MVE_VPST 2, implicit $vpr
    renamable $q5 = MVE_VSHR_immu16 renamable $q3, 11, 1, renamable $vpr, $noreg, undef renamable $q5
    renamable $r9 = nsw t2SUBri killed renamable $r9, 8, 14 /* CC::al */, $noreg, $noreg
    MVE_VSTRWU32 killed renamable $q5, $sp, 80, 0, $noreg, $noreg :: (store (s128) into %stack.0, align 8)
    MVE_VPST 8, implicit $vpr
    renamable $q7 = MVE_VLDRWU32 $sp, 80, 0, $noreg, $noreg :: (load (s128) from %stack.0, align 8)
    MVE_VPST 1, implicit $vpr
    renamable $vpr = MVE_VCMPi16r killed renamable $q6, renamable $r8, 1, 1, killed renamable $vpr, $noreg
    renamable $lr = t2LoopEndDec killed renamable $lr, %bb.1, implicit-def dead $cpsr
    tB %bb.2, 14 /* CC::al */, $noreg

  bb.2:
    successors: %bb.3(0x04000000), %bb.0(0x7c000000)
    liveins: $q0, $r1, $r2, $r3, $r4, $r5, $r7, $r8, $r10, $r11, $r12

    renamable $r0 = tLDRspi $sp, 1, 14 /* CC::al */, $noreg
    renamable $r10 = nuw t2ADDri killed renamable $r10, 1, 14 /* CC::al */, $noreg, $noreg
    renamable $r12 = t2ADDrs killed renamable $r12, killed renamable $r0, 10, 14 /* CC::al */, $noreg, $noreg
    renamable $r0 = tLDRspi $sp, 3, 14 /* CC::al */, $noreg
    renamable $r2 = t2ADDrs killed renamable $r2, killed renamable $r0, 10, 14 /* CC::al */, $noreg, $noreg
    renamable $r0 = tLDRspi $sp, 2, 14 /* CC::al */, $noreg
    tCMPhir renamable $r10, killed renamable $r0, 14 /* CC::al */, $noreg, implicit-def $cpsr
    tBcc %bb.0, 1 /* CC::ne */, killed $cpsr

  bb.3:
    $sp = frame-destroy tADDspi $sp, 24, 14 /* CC::al */, $noreg
    $sp = frame-destroy VLDMDIA_UPD $sp, 14 /* CC::al */, $noreg, def $d8, def $d9, def $d10, def $d11, def $d12, def $d13, def $d14, def $d15
    $sp = frame-destroy tADDspi $sp, 1, 14 /* CC::al */, $noreg
    $sp = frame-destroy t2LDMIA_RET $sp, 14 /* CC::al */, $noreg, def $r4, def $r5, def $r6, def $r7, def $r8, def $r9, def $r10, def $r11, def $pc
...
---
name:            vector_spill_load_outside
stack:
  - { id: 0, name: '', type: spill-slot, offset: -120, size: 16, alignment: 8,
      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
tracksRegLiveness: true
body:             |
  ; CHECK-LABEL: name: vector_spill_load_outside
  ; CHECK: bb.0:
  ; CHECK:   successors: %bb.1(0x80000000)
  ; CHECK:   liveins: $q0, $r1, $r2, $r3, $r4, $r5, $r7, $r8, $r10, $r11, $r12
  ; CHECK:   $r6 = tMOVr $r2, 14 /* CC::al */, $noreg
  ; CHECK:   $r0 = tMOVr $r12, 14 /* CC::al */, $noreg
  ; CHECK:   $r9 = tMOVr $r3, 14 /* CC::al */, $noreg
  ; CHECK:   $lr = t2DLS renamable $r1
  ; CHECK: bb.1:
  ; CHECK:   successors: %bb.1(0x7c000000), %bb.2(0x04000000)
  ; CHECK:   liveins: $lr, $q0, $r0, $r1, $r2, $r3, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11, $r12
  ; CHECK:   renamable $vpr = MVE_VCTP16 renamable $r9, 0, $noreg, $noreg
  ; CHECK:   MVE_VPST 8, implicit $vpr
  ; CHECK:   renamable $r0, renamable $q6 = MVE_VLDRHU16_post killed renamable $r0, 16, 1, renamable $vpr, $noreg
  ; CHECK:   renamable $q3 = MVE_VLDRHU16 renamable $r6, 0, 1, renamable $vpr, $noreg
  ; CHECK:   MVE_VPST 2, implicit $vpr
  ; CHECK:   renamable $q5 = MVE_VSHR_immu16 killed renamable $q3, 11, 1, renamable $vpr, $noreg, undef renamable $q5
  ; CHECK:   renamable $r9 = nsw t2SUBri killed renamable $r9, 8, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   MVE_VSTRWU32 killed renamable $q5, $sp, 80, 0, $noreg, $noreg :: (store (s128) into %stack.0, align 8)
  ; CHECK:   MVE_VPST 8, implicit $vpr
  ; CHECK:   dead renamable $q7 = MVE_VLDRWU32 $sp, 80, 0, $noreg, $noreg :: (load (s128) from %stack.0, align 8)
  ; CHECK:   MVE_VPST 1, implicit $vpr
  ; CHECK:   dead renamable $vpr = MVE_VCMPi16r killed renamable $q6, renamable $r8, 1, 1, killed renamable $vpr, $noreg
  ; CHECK:   $lr = t2LEUpdate killed renamable $lr, %bb.1
  ; CHECK: bb.2:
  ; CHECK:   successors: %bb.3(0x04000000), %bb.0(0x7c000000)
  ; CHECK:   liveins: $q0, $r1, $r2, $r3, $r4, $r5, $r7, $r8, $r10, $r11, $r12
  ; CHECK:   dead renamable $q7 = MVE_VLDRWU32 $sp, 80, 0, $noreg, $noreg :: (load (s128) from %stack.0, align 8)
  ; CHECK:   renamable $r0 = tLDRspi $sp, 1, 14 /* CC::al */, $noreg
  ; CHECK:   renamable $r10 = nuw t2ADDri killed renamable $r10, 1, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $r12 = t2ADDrs killed renamable $r12, killed renamable $r0, 10, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $r0 = tLDRspi $sp, 3, 14 /* CC::al */, $noreg
  ; CHECK:   renamable $r2 = t2ADDrs killed renamable $r2, killed renamable $r0, 10, 14 /* CC::al */, $noreg, $noreg
  ; CHECK:   renamable $r0 = tLDRspi $sp, 2, 14 /* CC::al */, $noreg
  ; CHECK:   tCMPhir renamable $r10, killed renamable $r0, 14 /* CC::al */, $noreg, implicit-def $cpsr
  ; CHECK:   tBcc %bb.0, 1 /* CC::ne */, killed $cpsr
  ; CHECK: bb.3:
  ; CHECK:   $sp = frame-destroy tADDspi $sp, 24, 14 /* CC::al */, $noreg
  ; CHECK:   $sp = frame-destroy VLDMDIA_UPD $sp, 14 /* CC::al */, $noreg, def $d8, def $d9, def $d10, def $d11, def $d12, def $d13, def $d14, def $d15
  ; CHECK:   $sp = frame-destroy tADDspi $sp, 1, 14 /* CC::al */, $noreg
  ; CHECK:   $sp = frame-destroy t2LDMIA_RET $sp, 14 /* CC::al */, $noreg, def $r4, def $r5, def $r6, def $r7, def $r8, def $r9, def $r10, def $r11, def $pc
  bb.0:
    successors: %bb.1(0x80000000)
    liveins: $q0, $r1, $r2, $r3, $r4, $r5, $r7, $r8, $r10, $r11, $r12

    $r6 = tMOVr $r2, 14 /* CC::al */, $noreg
    $r0 = tMOVr $r12, 14 /* CC::al */, $noreg
    $r9 = tMOVr $r3, 14 /* CC::al */, $noreg
    renamable $lr = t2DoLoopStartTP renamable $r1, renamable $r3

  bb.1:
    successors: %bb.1(0x7c000000), %bb.2(0x04000000)
    liveins: $lr, $q0, $r0, $r1, $r2, $r3, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11, $r12

    renamable $vpr = MVE_VCTP16 renamable $r9, 0, $noreg, $noreg
    MVE_VPST 8, implicit $vpr
    renamable $r0, renamable $q6 = MVE_VLDRHU16_post killed renamable $r0, 16, 1, renamable $vpr, $noreg
    renamable $q3 = MVE_VLDRHU16 renamable $r6, 0, 1, renamable $vpr, $noreg
    MVE_VPST 2, implicit $vpr
    renamable $q5 = MVE_VSHR_immu16 renamable $q3, 11, 1, renamable $vpr, $noreg, undef renamable $q5
    renamable $r9 = nsw t2SUBri killed renamable $r9, 8, 14 /* CC::al */, $noreg, $noreg
    MVE_VSTRWU32 killed renamable $q5, $sp, 80, 0, $noreg, $noreg :: (store (s128) into %stack.0, align 8)
    MVE_VPST 8, implicit $vpr
    renamable $q7 = MVE_VLDRWU32 $sp, 80, 0, $noreg, $noreg :: (load (s128) from %stack.0, align 8)
    MVE_VPST 1, implicit $vpr
    renamable $vpr = MVE_VCMPi16r killed renamable $q6, renamable $r8, 1, 1, killed renamable $vpr, $noreg
    renamable $lr = t2LoopEndDec killed renamable $lr, %bb.1, implicit-def dead $cpsr
    tB %bb.2, 14 /* CC::al */, $noreg

  bb.2:
    successors: %bb.3(0x04000000), %bb.0(0x7c000000)
    liveins: $q0, $r1, $r2, $r3, $r4, $r5, $r7, $r8, $r10, $r11, $r12

    renamable $q7 = MVE_VLDRWU32 $sp, 80, 0, $noreg, $noreg :: (load (s128) from %stack.0, align 8)
    renamable $r0 = tLDRspi $sp, 1, 14 /* CC::al */, $noreg
    renamable $r10 = nuw t2ADDri killed renamable $r10, 1, 14 /* CC::al */, $noreg, $noreg
    renamable $r12 = t2ADDrs killed renamable $r12, killed renamable $r0, 10, 14 /* CC::al */, $noreg, $noreg
    renamable $r0 = tLDRspi $sp, 3, 14 /* CC::al */, $noreg
    renamable $r2 = t2ADDrs killed renamable $r2, killed renamable $r0, 10, 14 /* CC::al */, $noreg, $noreg
    renamable $r0 = tLDRspi $sp, 2, 14 /* CC::al */, $noreg
    tCMPhir renamable $r10, killed renamable $r0, 14 /* CC::al */, $noreg, implicit-def $cpsr
    tBcc %bb.0, 1 /* CC::ne */, killed $cpsr

  bb.3:
    $sp = frame-destroy tADDspi $sp, 24, 14 /* CC::al */, $noreg
    $sp = frame-destroy VLDMDIA_UPD $sp, 14 /* CC::al */, $noreg, def $d8, def $d9, def $d10, def $d11, def $d12, def $d13, def $d14, def $d15
    $sp = frame-destroy tADDspi $sp, 1, 14 /* CC::al */, $noreg
    $sp = frame-destroy t2LDMIA_RET $sp, 14 /* CC::al */, $noreg, def $r4, def $r5, def $r6, def $r7, def $r8, def $r9, def $r10, def $r11, def $pc

...