# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1250 -run-pass=si-insert-waitcnts -o - %s | FileCheck %s

---
# Test 1: Simple case - DS loads only in preheader, no DS loads in loop.
# The optimization flushes DSCNT in the preheader so that
# subsequent loop iterations don't need to wait inside the loop.
name: ds_preheader_flush_simple
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  ; CHECK-LABEL: name: ds_preheader_flush_simple
  ; CHECK: bb.0:
  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
  ; CHECK-NEXT:   liveins: $sgpr0, $vgpr0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   $vgpr10_vgpr11_vgpr12_vgpr13 = DS_READ_B128 $vgpr0, 0, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr14_vgpr15_vgpr16_vgpr17 = DS_READ_B128 $vgpr0, 16, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr18_vgpr19_vgpr20_vgpr21 = DS_READ_B128 $vgpr0, 32, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr22_vgpr23_vgpr24_vgpr25 = DS_READ_B128 $vgpr0, 48, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   S_WAIT_DSCNT 0
  ; CHECK-NEXT:   S_BRANCH %bb.1
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1:
  ; CHECK-NEXT:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; CHECK-NEXT:   liveins: $sgpr0, $vgpr0, $vgpr10, $vgpr14, $vgpr18, $vgpr22
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   $vgpr30 = V_ADD_F32_e32 $vgpr10, $vgpr14, implicit $mode, implicit $exec
  ; CHECK-NEXT:   $vgpr31 = V_ADD_F32_e32 $vgpr18, $vgpr22, implicit $mode, implicit $exec
  ; CHECK-NEXT:   $sgpr0 = S_ADD_I32 $sgpr0, -1, implicit-def $scc
  ; CHECK-NEXT:   S_CBRANCH_SCC1 %bb.1, implicit $scc
  ; CHECK-NEXT:   S_BRANCH %bb.2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2:
  ; CHECK-NEXT:   S_ENDPGM 0
  bb.0:
    successors: %bb.1
    liveins: $sgpr0, $vgpr0

    ; Preheader: DS loads
    $vgpr10_vgpr11_vgpr12_vgpr13 = DS_READ_B128 $vgpr0, 0, 0, implicit $m0, implicit $exec
    $vgpr14_vgpr15_vgpr16_vgpr17 = DS_READ_B128 $vgpr0, 16, 0, implicit $m0, implicit $exec
    $vgpr18_vgpr19_vgpr20_vgpr21 = DS_READ_B128 $vgpr0, 32, 0, implicit $m0, implicit $exec
    $vgpr22_vgpr23_vgpr24_vgpr25 = DS_READ_B128 $vgpr0, 48, 0, implicit $m0, implicit $exec
    S_BRANCH %bb.1

  bb.1:
    successors: %bb.1, %bb.2
    liveins: $sgpr0, $vgpr0, $vgpr10, $vgpr14, $vgpr18, $vgpr22

    ; Use DS-loaded values (no DS loads inside the loop)
    $vgpr30 = V_ADD_F32_e32 $vgpr10, $vgpr14, implicit $mode, implicit $exec
    $vgpr31 = V_ADD_F32_e32 $vgpr18, $vgpr22, implicit $mode, implicit $exec

    ; Loop control
    $sgpr0 = S_ADD_I32 $sgpr0, -1, implicit-def $scc
    S_CBRANCH_SCC1 %bb.1, implicit $scc
    S_BRANCH %bb.2

  bb.2:
    S_ENDPGM 0
...

---
# Test 2: Prefetch pattern - DS loads both in preheader AND at end of loop.
# USE comes before DEF (prefetch pattern): values are used first, then
# new values are loaded for the next iteration. Since the DEF happens
# AFTER the USE in program order, we can still flush in preheader.
# This helps iteration 1 avoid waiting inside the loop.
#
# The cascading wait pattern shows decreasing dscnt values (12, 8, 4, 0)
# as each group of registers becomes ready.
name: ds_loop_prefetch_pattern
tracksRegLiveness: true
machineFunctionInfo:
  isEntryFunction: true
body: |
  ; CHECK-LABEL: name: ds_loop_prefetch_pattern
  ; CHECK: bb.0:
  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
  ; CHECK-NEXT:   liveins: $sgpr0, $vgpr0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   $vgpr70_vgpr71_vgpr72_vgpr73 = DS_READ_B128 $vgpr0, 240, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr66_vgpr67_vgpr68_vgpr69 = DS_READ_B128 $vgpr0, 224, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr62_vgpr63_vgpr64_vgpr65 = DS_READ_B128 $vgpr0, 208, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr58_vgpr59_vgpr60_vgpr61 = DS_READ_B128 $vgpr0, 192, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr54_vgpr55_vgpr56_vgpr57 = DS_READ_B128 $vgpr0, 176, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr50_vgpr51_vgpr52_vgpr53 = DS_READ_B128 $vgpr0, 160, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr46_vgpr47_vgpr48_vgpr49 = DS_READ_B128 $vgpr0, 144, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr42_vgpr43_vgpr44_vgpr45 = DS_READ_B128 $vgpr0, 128, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr38_vgpr39_vgpr40_vgpr41 = DS_READ_B128 $vgpr0, 112, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr34_vgpr35_vgpr36_vgpr37 = DS_READ_B128 $vgpr0, 96, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr30_vgpr31_vgpr32_vgpr33 = DS_READ_B128 $vgpr0, 80, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr26_vgpr27_vgpr28_vgpr29 = DS_READ_B128 $vgpr0, 64, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr22_vgpr23_vgpr24_vgpr25 = DS_READ_B128 $vgpr0, 48, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr18_vgpr19_vgpr20_vgpr21 = DS_READ_B128 $vgpr0, 32, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr14_vgpr15_vgpr16_vgpr17 = DS_READ_B128 $vgpr0, 16, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr10_vgpr11_vgpr12_vgpr13 = DS_READ_B128 $vgpr0, 0, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   S_WAIT_DSCNT 0
  ; CHECK-NEXT:   S_BRANCH %bb.1
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1:
  ; CHECK-NEXT:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; CHECK-NEXT:   liveins: $sgpr0, $vgpr0, $vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15_vgpr16_vgpr17, $vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23_vgpr24_vgpr25, $vgpr26_vgpr27_vgpr28_vgpr29_vgpr30_vgpr31_vgpr32_vgpr33, $vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39_vgpr40_vgpr41, $vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49, $vgpr50_vgpr51_vgpr52_vgpr53_vgpr54_vgpr55_vgpr56_vgpr57, $vgpr58_vgpr59_vgpr60_vgpr61_vgpr62_vgpr63_vgpr64_vgpr65, $vgpr66_vgpr67_vgpr68_vgpr69_vgpr70_vgpr71_vgpr72_vgpr73, $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87, $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   S_WAIT_DSCNT 12
  ; CHECK-NEXT:   early-clobber $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87 = V_WMMA_F32_16X16X32_F16_w32_twoaddr 8, $vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15_vgpr16_vgpr17, 8, $vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23_vgpr24_vgpr25, 8, killed $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87, 0, 0, 0, 0, implicit $exec
  ; CHECK-NEXT:   S_WAIT_DSCNT 8
  ; CHECK-NEXT:   early-clobber $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95 = V_WMMA_F32_16X16X32_F16_w32_twoaddr 8, $vgpr26_vgpr27_vgpr28_vgpr29_vgpr30_vgpr31_vgpr32_vgpr33, 8, $vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39_vgpr40_vgpr41, 8, killed $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95, 0, 0, 0, 0, implicit $exec
  ; CHECK-NEXT:   S_WAIT_DSCNT 4
  ; CHECK-NEXT:   early-clobber $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87 = V_WMMA_F32_16X16X32_F16_w32_twoaddr 8, $vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49, 8, $vgpr50_vgpr51_vgpr52_vgpr53_vgpr54_vgpr55_vgpr56_vgpr57, 8, killed $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87, 0, 0, 0, 0, implicit $exec
  ; CHECK-NEXT:   S_WAIT_DSCNT 0
  ; CHECK-NEXT:   early-clobber $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95 = V_WMMA_F32_16X16X32_F16_w32_twoaddr 8, $vgpr58_vgpr59_vgpr60_vgpr61_vgpr62_vgpr63_vgpr64_vgpr65, 8, $vgpr66_vgpr67_vgpr68_vgpr69_vgpr70_vgpr71_vgpr72_vgpr73, 8, killed $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95, 0, 0, 0, 0, implicit $exec
  ; CHECK-NEXT:   early-clobber $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87 = V_WMMA_F32_16X16X32_F16_w32_twoaddr 8, $vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15_vgpr16_vgpr17, 8, $vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23_vgpr24_vgpr25, 8, killed $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87, 0, 0, 0, 0, implicit $exec
  ; CHECK-NEXT:   early-clobber $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95 = V_WMMA_F32_16X16X32_F16_w32_twoaddr 8, $vgpr26_vgpr27_vgpr28_vgpr29_vgpr30_vgpr31_vgpr32_vgpr33, 8, $vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39_vgpr40_vgpr41, 8, killed $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95, 0, 0, 0, 0, implicit $exec
  ; CHECK-NEXT:   early-clobber $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87 = V_WMMA_F32_16X16X32_F16_w32_twoaddr 8, $vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49, 8, $vgpr50_vgpr51_vgpr52_vgpr53_vgpr54_vgpr55_vgpr56_vgpr57, 8, killed $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87, 0, 0, 0, 0, implicit $exec
  ; CHECK-NEXT:   early-clobber $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95 = V_WMMA_F32_16X16X32_F16_w32_twoaddr 8, $vgpr58_vgpr59_vgpr60_vgpr61_vgpr62_vgpr63_vgpr64_vgpr65, 8, $vgpr66_vgpr67_vgpr68_vgpr69_vgpr70_vgpr71_vgpr72_vgpr73, 8, killed $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95, 0, 0, 0, 0, implicit $exec
  ; CHECK-NEXT:   S_BARRIER
  ; CHECK-NEXT:   $vgpr10_vgpr11_vgpr12_vgpr13 = DS_READ_B128 $vgpr0, 0, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr14_vgpr15_vgpr16_vgpr17 = DS_READ_B128 $vgpr0, 16, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr18_vgpr19_vgpr20_vgpr21 = DS_READ_B128 $vgpr0, 32, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr22_vgpr23_vgpr24_vgpr25 = DS_READ_B128 $vgpr0, 48, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr26_vgpr27_vgpr28_vgpr29 = DS_READ_B128 $vgpr0, 64, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr30_vgpr31_vgpr32_vgpr33 = DS_READ_B128 $vgpr0, 80, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr34_vgpr35_vgpr36_vgpr37 = DS_READ_B128 $vgpr0, 96, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr38_vgpr39_vgpr40_vgpr41 = DS_READ_B128 $vgpr0, 112, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr42_vgpr43_vgpr44_vgpr45 = DS_READ_B128 $vgpr0, 128, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr46_vgpr47_vgpr48_vgpr49 = DS_READ_B128 $vgpr0, 144, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr50_vgpr51_vgpr52_vgpr53 = DS_READ_B128 $vgpr0, 160, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr54_vgpr55_vgpr56_vgpr57 = DS_READ_B128 $vgpr0, 176, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr58_vgpr59_vgpr60_vgpr61 = DS_READ_B128 $vgpr0, 192, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr62_vgpr63_vgpr64_vgpr65 = DS_READ_B128 $vgpr0, 208, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr66_vgpr67_vgpr68_vgpr69 = DS_READ_B128 $vgpr0, 224, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $vgpr70_vgpr71_vgpr72_vgpr73 = DS_READ_B128 $vgpr0, 240, 0, implicit $m0, implicit $exec
  ; CHECK-NEXT:   $sgpr0 = S_ADD_I32 $sgpr0, -1, implicit-def $scc
  ; CHECK-NEXT:   S_CBRANCH_SCC1 %bb.1, implicit $scc
  ; CHECK-NEXT:   S_BRANCH %bb.2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2:
  ; CHECK-NEXT:   S_ENDPGM 0
  bb.0:
    successors: %bb.1
    liveins: $sgpr0, $vgpr0

    ; Preheader: DS loads for first iteration
    $vgpr70_vgpr71_vgpr72_vgpr73 = DS_READ_B128 $vgpr0, 240, 0, implicit $m0, implicit $exec
    $vgpr66_vgpr67_vgpr68_vgpr69 = DS_READ_B128 $vgpr0, 224, 0, implicit $m0, implicit $exec
    $vgpr62_vgpr63_vgpr64_vgpr65 = DS_READ_B128 $vgpr0, 208, 0, implicit $m0, implicit $exec
    $vgpr58_vgpr59_vgpr60_vgpr61 = DS_READ_B128 $vgpr0, 192, 0, implicit $m0, implicit $exec
    $vgpr54_vgpr55_vgpr56_vgpr57 = DS_READ_B128 $vgpr0, 176, 0, implicit $m0, implicit $exec
    $vgpr50_vgpr51_vgpr52_vgpr53 = DS_READ_B128 $vgpr0, 160, 0, implicit $m0, implicit $exec
    $vgpr46_vgpr47_vgpr48_vgpr49 = DS_READ_B128 $vgpr0, 144, 0, implicit $m0, implicit $exec
    $vgpr42_vgpr43_vgpr44_vgpr45 = DS_READ_B128 $vgpr0, 128, 0, implicit $m0, implicit $exec
    $vgpr38_vgpr39_vgpr40_vgpr41 = DS_READ_B128 $vgpr0, 112, 0, implicit $m0, implicit $exec
    $vgpr34_vgpr35_vgpr36_vgpr37 = DS_READ_B128 $vgpr0, 96, 0, implicit $m0, implicit $exec
    $vgpr30_vgpr31_vgpr32_vgpr33 = DS_READ_B128 $vgpr0, 80, 0, implicit $m0, implicit $exec
    $vgpr26_vgpr27_vgpr28_vgpr29 = DS_READ_B128 $vgpr0, 64, 0, implicit $m0, implicit $exec
    $vgpr22_vgpr23_vgpr24_vgpr25 = DS_READ_B128 $vgpr0, 48, 0, implicit $m0, implicit $exec
    $vgpr18_vgpr19_vgpr20_vgpr21 = DS_READ_B128 $vgpr0, 32, 0, implicit $m0, implicit $exec
    $vgpr14_vgpr15_vgpr16_vgpr17 = DS_READ_B128 $vgpr0, 16, 0, implicit $m0, implicit $exec
    $vgpr10_vgpr11_vgpr12_vgpr13 = DS_READ_B128 $vgpr0, 0, 0, implicit $m0, implicit $exec
    S_BRANCH %bb.1

  bb.1:
    successors: %bb.1, %bb.2
    liveins: $sgpr0, $vgpr0, $vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15_vgpr16_vgpr17, $vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23_vgpr24_vgpr25, $vgpr26_vgpr27_vgpr28_vgpr29_vgpr30_vgpr31_vgpr32_vgpr33, $vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39_vgpr40_vgpr41, $vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49, $vgpr50_vgpr51_vgpr52_vgpr53_vgpr54_vgpr55_vgpr56_vgpr57, $vgpr58_vgpr59_vgpr60_vgpr61_vgpr62_vgpr63_vgpr64_vgpr65, $vgpr66_vgpr67_vgpr68_vgpr69_vgpr70_vgpr71_vgpr72_vgpr73, $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87, $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95

    ; WMMA using vgpr10-25 (loaded in preheader or previous iteration's prefetch)
    early-clobber $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87 = V_WMMA_F32_16X16X32_F16_w32_twoaddr 8, $vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15_vgpr16_vgpr17, 8, $vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23_vgpr24_vgpr25, 8, killed $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87, 0, 0, 0, 0, implicit $exec

    ; More WMMAs using other registers
    early-clobber $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95 = V_WMMA_F32_16X16X32_F16_w32_twoaddr 8, $vgpr26_vgpr27_vgpr28_vgpr29_vgpr30_vgpr31_vgpr32_vgpr33, 8, $vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39_vgpr40_vgpr41, 8, killed $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95, 0, 0, 0, 0, implicit $exec
    early-clobber $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87 = V_WMMA_F32_16X16X32_F16_w32_twoaddr 8, $vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49, 8, $vgpr50_vgpr51_vgpr52_vgpr53_vgpr54_vgpr55_vgpr56_vgpr57, 8, killed $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87, 0, 0, 0, 0, implicit $exec
    early-clobber $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95 = V_WMMA_F32_16X16X32_F16_w32_twoaddr 8, $vgpr58_vgpr59_vgpr60_vgpr61_vgpr62_vgpr63_vgpr64_vgpr65, 8, $vgpr66_vgpr67_vgpr68_vgpr69_vgpr70_vgpr71_vgpr72_vgpr73, 8, killed $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95, 0, 0, 0, 0, implicit $exec

    ; Repeat with same registers
    early-clobber $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87 = V_WMMA_F32_16X16X32_F16_w32_twoaddr 8, $vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15_vgpr16_vgpr17, 8, $vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23_vgpr24_vgpr25, 8, killed $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87, 0, 0, 0, 0, implicit $exec
    early-clobber $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95 = V_WMMA_F32_16X16X32_F16_w32_twoaddr 8, $vgpr26_vgpr27_vgpr28_vgpr29_vgpr30_vgpr31_vgpr32_vgpr33, 8, $vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39_vgpr40_vgpr41, 8, killed $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95, 0, 0, 0, 0, implicit $exec
    early-clobber $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87 = V_WMMA_F32_16X16X32_F16_w32_twoaddr 8, $vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49, 8, $vgpr50_vgpr51_vgpr52_vgpr53_vgpr54_vgpr55_vgpr56_vgpr57, 8, killed $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87, 0, 0, 0, 0, implicit $exec
    early-clobber $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95 = V_WMMA_F32_16X16X32_F16_w32_twoaddr 8, $vgpr58_vgpr59_vgpr60_vgpr61_vgpr62_vgpr63_vgpr64_vgpr65, 8, $vgpr66_vgpr67_vgpr68_vgpr69_vgpr70_vgpr71_vgpr72_vgpr73, 8, killed $vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95, 0, 0, 0, 0, implicit $exec

    ; Barrier
    S_BARRIER

    ; Prefetch DS loads for next iteration (this prevents simple optimization)
    $vgpr10_vgpr11_vgpr12_vgpr13 = DS_READ_B128 $vgpr0, 0, 0, implicit $m0, implicit $exec
    $vgpr14_vgpr15_vgpr16_vgpr17 = DS_READ_B128 $vgpr0, 16, 0, implicit $m0, implicit $exec
    $vgpr18_vgpr19_vgpr20_vgpr21 = DS_READ_B128 $vgpr0, 32, 0, implicit $m0, implicit $exec
    $vgpr22_vgpr23_vgpr24_vgpr25 = DS_READ_B128 $vgpr0, 48, 0, implicit $m0, implicit $exec
    $vgpr26_vgpr27_vgpr28_vgpr29 = DS_READ_B128 $vgpr0, 64, 0, implicit $m0, implicit $exec
    $vgpr30_vgpr31_vgpr32_vgpr33 = DS_READ_B128 $vgpr0, 80, 0, implicit $m0, implicit $exec
    $vgpr34_vgpr35_vgpr36_vgpr37 = DS_READ_B128 $vgpr0, 96, 0, implicit $m0, implicit $exec
    $vgpr38_vgpr39_vgpr40_vgpr41 = DS_READ_B128 $vgpr0, 112, 0, implicit $m0, implicit $exec
    $vgpr42_vgpr43_vgpr44_vgpr45 = DS_READ_B128 $vgpr0, 128, 0, implicit $m0, implicit $exec
    $vgpr46_vgpr47_vgpr48_vgpr49 = DS_READ_B128 $vgpr0, 144, 0, implicit $m0, implicit $exec
    $vgpr50_vgpr51_vgpr52_vgpr53 = DS_READ_B128 $vgpr0, 160, 0, implicit $m0, implicit $exec
    $vgpr54_vgpr55_vgpr56_vgpr57 = DS_READ_B128 $vgpr0, 176, 0, implicit $m0, implicit $exec
    $vgpr58_vgpr59_vgpr60_vgpr61 = DS_READ_B128 $vgpr0, 192, 0, implicit $m0, implicit $exec
    $vgpr62_vgpr63_vgpr64_vgpr65 = DS_READ_B128 $vgpr0, 208, 0, implicit $m0, implicit $exec
    $vgpr66_vgpr67_vgpr68_vgpr69 = DS_READ_B128 $vgpr0, 224, 0, implicit $m0, implicit $exec
    $vgpr70_vgpr71_vgpr72_vgpr73 = DS_READ_B128 $vgpr0, 240, 0, implicit $m0, implicit $exec

    ; Loop control
    $sgpr0 = S_ADD_I32 $sgpr0, -1, implicit-def $scc
    S_CBRANCH_SCC1 %bb.1, implicit $scc
    S_BRANCH %bb.2

  bb.2:
    S_ENDPGM 0
...