# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn-amd-amdhsa -verify-machineinstrs -run-pass=prologepilog %s -o - | FileCheck %s
# The wrong form of scavengeRegister was used, so it wasn't accounting
# for the iterator passed to eliminateFrameIndex. It was instead using
# the current iterator in the scavenger, which was not yet set if the
# spill was the first instruction in the block.
---
name: scavenge_register_position
tracksRegLiveness: true
# Force a frame larger than the immediate field with a large alignment.
stack:
- { id: 0, type: default, offset: 4096, size: 4, alignment: 8192 }
machineFunctionInfo:
isEntryFunction: true
scratchRSrcReg: $sgpr0_sgpr1_sgpr2_sgpr3
stackPtrOffsetReg: $sgpr32
argumentInfo:
privateSegmentWaveByteOffset: { reg: '$sgpr4' }
body: |
; CHECK-LABEL: name: scavenge_register_position
; CHECK: bb.0:
; CHECK-NEXT: successors: %bb.1(0x80000000)
; CHECK-NEXT: liveins: $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: $sgpr0 = S_ADD_U32 $sgpr0, $sgpr4, implicit-def $scc, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3
; CHECK-NEXT: $sgpr1 = S_ADDC_U32 $sgpr1, 0, implicit-def dead $scc, implicit $scc, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3
; CHECK-NEXT: $sgpr4 = S_MOV_B32 524288
; CHECK-NEXT: $vgpr0 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, killed $sgpr4, 0, 0, 0, implicit $exec :: (load (s32) from %stack.0, align 8192, addrspace 5)
; CHECK-NEXT: S_BRANCH %bb.1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.1:
; CHECK-NEXT: liveins: $sgpr0_sgpr1_sgpr2_sgpr3
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: $sgpr4 = S_MOV_B32 524288
; CHECK-NEXT: $vgpr0 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, killed $sgpr4, 0, 0, 0, implicit $exec :: (load (s32) from %stack.0, align 8192, addrspace 5)
; CHECK-NEXT: S_ENDPGM 0, implicit $vgpr0
bb.0:
$vgpr0 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, addrspace 5)
S_BRANCH %bb.1
bb.1:
$vgpr0 = SI_SPILL_V32_RESTORE %stack.0, $sgpr32, 0, implicit $exec :: (load (s32) from %stack.0, addrspace 5)
S_ENDPGM 0, implicit $vgpr0
...
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