llvm/test/CodeGen/AMDGPU/sgpr-spill-no-vgprs.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -O0 -mtriple=amdgcn-amd-amdhsa -mcpu=hawaii -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s

; The first 64 SGPR spills can go to a VGPR, but there isn't a second
; so some spills must be to memory. The last 16 element spill runs out of lanes at the 15th element.

define amdgpu_kernel void @partial_no_vgprs_last_sgpr_spill(ptr addrspace(1) %out, i32 %in) #1 {
; GCN-LABEL: partial_no_vgprs_last_sgpr_spill:
; GCN:       ; %bb.0:
; GCN-NEXT:    s_add_u32 s0, s0, s13
; GCN-NEXT:    s_addc_u32 s1, s1, 0
; GCN-NEXT:    ; implicit-def: $vgpr0 : SGPR spill to VGPR lane
; GCN-NEXT:    ; implicit-def: $vgpr0 : SGPR spill to VGPR lane
; GCN-NEXT:    s_load_dword s4, s[6:7], 0x2
; GCN-NEXT:    ;;#ASMSTART
; GCN-NEXT:    ;;#ASMEND
; GCN-NEXT:    s_or_saveexec_b64 s[24:25], -1
; GCN-NEXT:    buffer_load_dword v1, off, s[0:3], 0 offset:8 ; 4-byte Folded Reload
; GCN-NEXT:    s_mov_b64 exec, s[24:25]
; GCN-NEXT:    s_or_saveexec_b64 s[24:25], -1
; GCN-NEXT:    buffer_load_dword v0, off, s[0:3], 0 offset:4 ; 4-byte Folded Reload
; GCN-NEXT:    s_mov_b64 exec, s[24:25]
; GCN-NEXT:    ;;#ASMSTART
; GCN-NEXT:    ;;#ASMEND
; GCN-NEXT:    ;;#ASMSTART
; GCN-NEXT:    ;;#ASMEND
; GCN-NEXT:    ;;#ASMSTART
; GCN-NEXT:    ;;#ASMEND
; GCN-NEXT:    ;;#ASMSTART
; GCN-NEXT:    ;;#ASMEND
; GCN-NEXT:    ;;#ASMSTART
; GCN-NEXT:    ; def s[8:23]
; GCN-NEXT:    ;;#ASMEND
; GCN-NEXT:    s_waitcnt vmcnt(1)
; GCN-NEXT:    v_writelane_b32 v1, s8, 0
; GCN-NEXT:    v_writelane_b32 v1, s9, 1
; GCN-NEXT:    v_writelane_b32 v1, s10, 2
; GCN-NEXT:    v_writelane_b32 v1, s11, 3
; GCN-NEXT:    v_writelane_b32 v1, s12, 4
; GCN-NEXT:    v_writelane_b32 v1, s13, 5
; GCN-NEXT:    v_writelane_b32 v1, s14, 6
; GCN-NEXT:    v_writelane_b32 v1, s15, 7
; GCN-NEXT:    v_writelane_b32 v1, s16, 8
; GCN-NEXT:    v_writelane_b32 v1, s17, 9
; GCN-NEXT:    v_writelane_b32 v1, s18, 10
; GCN-NEXT:    v_writelane_b32 v1, s19, 11
; GCN-NEXT:    v_writelane_b32 v1, s20, 12
; GCN-NEXT:    v_writelane_b32 v1, s21, 13
; GCN-NEXT:    v_writelane_b32 v1, s22, 14
; GCN-NEXT:    v_writelane_b32 v1, s23, 15
; GCN-NEXT:    ;;#ASMSTART
; GCN-NEXT:    ; def s[8:23]
; GCN-NEXT:    ;;#ASMEND
; GCN-NEXT:    v_writelane_b32 v1, s8, 16
; GCN-NEXT:    v_writelane_b32 v1, s9, 17
; GCN-NEXT:    v_writelane_b32 v1, s10, 18
; GCN-NEXT:    v_writelane_b32 v1, s11, 19
; GCN-NEXT:    v_writelane_b32 v1, s12, 20
; GCN-NEXT:    v_writelane_b32 v1, s13, 21
; GCN-NEXT:    v_writelane_b32 v1, s14, 22
; GCN-NEXT:    v_writelane_b32 v1, s15, 23
; GCN-NEXT:    v_writelane_b32 v1, s16, 24
; GCN-NEXT:    v_writelane_b32 v1, s17, 25
; GCN-NEXT:    v_writelane_b32 v1, s18, 26
; GCN-NEXT:    v_writelane_b32 v1, s19, 27
; GCN-NEXT:    v_writelane_b32 v1, s20, 28
; GCN-NEXT:    v_writelane_b32 v1, s21, 29
; GCN-NEXT:    v_writelane_b32 v1, s22, 30
; GCN-NEXT:    v_writelane_b32 v1, s23, 31
; GCN-NEXT:    ;;#ASMSTART
; GCN-NEXT:    ; def s[8:23]
; GCN-NEXT:    ;;#ASMEND
; GCN-NEXT:    v_writelane_b32 v1, s8, 32
; GCN-NEXT:    v_writelane_b32 v1, s9, 33
; GCN-NEXT:    v_writelane_b32 v1, s10, 34
; GCN-NEXT:    v_writelane_b32 v1, s11, 35
; GCN-NEXT:    v_writelane_b32 v1, s12, 36
; GCN-NEXT:    v_writelane_b32 v1, s13, 37
; GCN-NEXT:    v_writelane_b32 v1, s14, 38
; GCN-NEXT:    v_writelane_b32 v1, s15, 39
; GCN-NEXT:    v_writelane_b32 v1, s16, 40
; GCN-NEXT:    v_writelane_b32 v1, s17, 41
; GCN-NEXT:    v_writelane_b32 v1, s18, 42
; GCN-NEXT:    v_writelane_b32 v1, s19, 43
; GCN-NEXT:    v_writelane_b32 v1, s20, 44
; GCN-NEXT:    v_writelane_b32 v1, s21, 45
; GCN-NEXT:    v_writelane_b32 v1, s22, 46
; GCN-NEXT:    v_writelane_b32 v1, s23, 47
; GCN-NEXT:    ;;#ASMSTART
; GCN-NEXT:    ; def s[8:23]
; GCN-NEXT:    ;;#ASMEND
; GCN-NEXT:    v_writelane_b32 v1, s8, 48
; GCN-NEXT:    v_writelane_b32 v1, s9, 49
; GCN-NEXT:    v_writelane_b32 v1, s10, 50
; GCN-NEXT:    v_writelane_b32 v1, s11, 51
; GCN-NEXT:    v_writelane_b32 v1, s12, 52
; GCN-NEXT:    v_writelane_b32 v1, s13, 53
; GCN-NEXT:    v_writelane_b32 v1, s14, 54
; GCN-NEXT:    v_writelane_b32 v1, s15, 55
; GCN-NEXT:    v_writelane_b32 v1, s16, 56
; GCN-NEXT:    v_writelane_b32 v1, s17, 57
; GCN-NEXT:    v_writelane_b32 v1, s18, 58
; GCN-NEXT:    v_writelane_b32 v1, s19, 59
; GCN-NEXT:    v_writelane_b32 v1, s20, 60
; GCN-NEXT:    v_writelane_b32 v1, s21, 61
; GCN-NEXT:    v_writelane_b32 v1, s22, 62
; GCN-NEXT:    v_writelane_b32 v1, s23, 63
; GCN-NEXT:    s_or_saveexec_b64 s[24:25], -1
; GCN-NEXT:    buffer_store_dword v1, off, s[0:3], 0 offset:8 ; 4-byte Folded Spill
; GCN-NEXT:    s_mov_b64 exec, s[24:25]
; GCN-NEXT:    ;;#ASMSTART
; GCN-NEXT:    ; def s[6:7]
; GCN-NEXT:    ;;#ASMEND
; GCN-NEXT:    s_waitcnt vmcnt(1)
; GCN-NEXT:    v_writelane_b32 v0, s6, 0
; GCN-NEXT:    v_writelane_b32 v0, s7, 1
; GCN-NEXT:    s_or_saveexec_b64 s[24:25], -1
; GCN-NEXT:    buffer_store_dword v0, off, s[0:3], 0 offset:4 ; 4-byte Folded Spill
; GCN-NEXT:    s_mov_b64 exec, s[24:25]
; GCN-NEXT:    s_mov_b32 s5, 0
; GCN-NEXT:    s_waitcnt lgkmcnt(0)
; GCN-NEXT:    s_cmp_lg_u32 s4, s5
; GCN-NEXT:    s_cbranch_scc1 .LBB0_2
; GCN-NEXT:  ; %bb.1: ; %bb0
; GCN-NEXT:    s_or_saveexec_b64 s[24:25], -1
; GCN-NEXT:    buffer_load_dword v1, off, s[0:3], 0 offset:8 ; 4-byte Folded Reload
; GCN-NEXT:    s_mov_b64 exec, s[24:25]
; GCN-NEXT:    s_waitcnt vmcnt(0)
; GCN-NEXT:    v_readlane_b32 s4, v1, 0
; GCN-NEXT:    v_readlane_b32 s5, v1, 1
; GCN-NEXT:    v_readlane_b32 s6, v1, 2
; GCN-NEXT:    v_readlane_b32 s7, v1, 3
; GCN-NEXT:    v_readlane_b32 s8, v1, 4
; GCN-NEXT:    v_readlane_b32 s9, v1, 5
; GCN-NEXT:    v_readlane_b32 s10, v1, 6
; GCN-NEXT:    v_readlane_b32 s11, v1, 7
; GCN-NEXT:    v_readlane_b32 s12, v1, 8
; GCN-NEXT:    v_readlane_b32 s13, v1, 9
; GCN-NEXT:    v_readlane_b32 s14, v1, 10
; GCN-NEXT:    v_readlane_b32 s15, v1, 11
; GCN-NEXT:    v_readlane_b32 s16, v1, 12
; GCN-NEXT:    v_readlane_b32 s17, v1, 13
; GCN-NEXT:    v_readlane_b32 s18, v1, 14
; GCN-NEXT:    v_readlane_b32 s19, v1, 15
; GCN-NEXT:    s_or_saveexec_b64 s[24:25], -1
; GCN-NEXT:    buffer_load_dword v0, off, s[0:3], 0 offset:4 ; 4-byte Folded Reload
; GCN-NEXT:    s_mov_b64 exec, s[24:25]
; GCN-NEXT:    ;;#ASMSTART
; GCN-NEXT:    ; use s[4:19]
; GCN-NEXT:    ;;#ASMEND
; GCN-NEXT:    v_readlane_b32 s4, v1, 16
; GCN-NEXT:    v_readlane_b32 s5, v1, 17
; GCN-NEXT:    v_readlane_b32 s6, v1, 18
; GCN-NEXT:    v_readlane_b32 s7, v1, 19
; GCN-NEXT:    v_readlane_b32 s8, v1, 20
; GCN-NEXT:    v_readlane_b32 s9, v1, 21
; GCN-NEXT:    v_readlane_b32 s10, v1, 22
; GCN-NEXT:    v_readlane_b32 s11, v1, 23
; GCN-NEXT:    v_readlane_b32 s12, v1, 24
; GCN-NEXT:    v_readlane_b32 s13, v1, 25
; GCN-NEXT:    v_readlane_b32 s14, v1, 26
; GCN-NEXT:    v_readlane_b32 s15, v1, 27
; GCN-NEXT:    v_readlane_b32 s16, v1, 28
; GCN-NEXT:    v_readlane_b32 s17, v1, 29
; GCN-NEXT:    v_readlane_b32 s18, v1, 30
; GCN-NEXT:    v_readlane_b32 s19, v1, 31
; GCN-NEXT:    ;;#ASMSTART
; GCN-NEXT:    ; use s[4:19]
; GCN-NEXT:    ;;#ASMEND
; GCN-NEXT:    v_readlane_b32 s4, v1, 32
; GCN-NEXT:    v_readlane_b32 s5, v1, 33
; GCN-NEXT:    v_readlane_b32 s6, v1, 34
; GCN-NEXT:    v_readlane_b32 s7, v1, 35
; GCN-NEXT:    v_readlane_b32 s8, v1, 36
; GCN-NEXT:    v_readlane_b32 s9, v1, 37
; GCN-NEXT:    v_readlane_b32 s10, v1, 38
; GCN-NEXT:    v_readlane_b32 s11, v1, 39
; GCN-NEXT:    v_readlane_b32 s12, v1, 40
; GCN-NEXT:    v_readlane_b32 s13, v1, 41
; GCN-NEXT:    v_readlane_b32 s14, v1, 42
; GCN-NEXT:    v_readlane_b32 s15, v1, 43
; GCN-NEXT:    v_readlane_b32 s16, v1, 44
; GCN-NEXT:    v_readlane_b32 s17, v1, 45
; GCN-NEXT:    v_readlane_b32 s18, v1, 46
; GCN-NEXT:    v_readlane_b32 s19, v1, 47
; GCN-NEXT:    ;;#ASMSTART
; GCN-NEXT:    ; use s[4:19]
; GCN-NEXT:    ;;#ASMEND
; GCN-NEXT:    v_readlane_b32 s8, v1, 48
; GCN-NEXT:    v_readlane_b32 s9, v1, 49
; GCN-NEXT:    v_readlane_b32 s10, v1, 50
; GCN-NEXT:    v_readlane_b32 s11, v1, 51
; GCN-NEXT:    v_readlane_b32 s12, v1, 52
; GCN-NEXT:    v_readlane_b32 s13, v1, 53
; GCN-NEXT:    v_readlane_b32 s14, v1, 54
; GCN-NEXT:    v_readlane_b32 s15, v1, 55
; GCN-NEXT:    v_readlane_b32 s16, v1, 56
; GCN-NEXT:    v_readlane_b32 s17, v1, 57
; GCN-NEXT:    v_readlane_b32 s18, v1, 58
; GCN-NEXT:    v_readlane_b32 s19, v1, 59
; GCN-NEXT:    v_readlane_b32 s20, v1, 60
; GCN-NEXT:    v_readlane_b32 s21, v1, 61
; GCN-NEXT:    v_readlane_b32 s22, v1, 62
; GCN-NEXT:    v_readlane_b32 s23, v1, 63
; GCN-NEXT:    s_waitcnt vmcnt(0)
; GCN-NEXT:    v_readlane_b32 s4, v0, 0
; GCN-NEXT:    v_readlane_b32 s5, v0, 1
; GCN-NEXT:    ;;#ASMSTART
; GCN-NEXT:    ; use s[8:23]
; GCN-NEXT:    ;;#ASMEND
; GCN-NEXT:    ;;#ASMSTART
; GCN-NEXT:    ; use s[4:5]
; GCN-NEXT:    ;;#ASMEND
; GCN-NEXT:  .LBB0_2: ; %ret
; GCN-NEXT:    s_or_saveexec_b64 s[24:25], -1
; GCN-NEXT:    buffer_load_dword v0, off, s[0:3], 0 offset:4 ; 4-byte Folded Reload
; GCN-NEXT:    s_mov_b64 exec, s[24:25]
; GCN-NEXT:    s_or_saveexec_b64 s[24:25], -1
; GCN-NEXT:    buffer_load_dword v1, off, s[0:3], 0 offset:8 ; 4-byte Folded Reload
; GCN-NEXT:    s_mov_b64 exec, s[24:25]
; GCN-NEXT:    ; kill: killed $vgpr1
; GCN-NEXT:    ; kill: killed $vgpr0
; GCN-NEXT:    s_endpgm
  call void asm sideeffect "", "~{v[0:7]}" () #0
  call void asm sideeffect "", "~{v[8:15]}" () #0
  call void asm sideeffect "", "~{v[16:19]}"() #0
  call void asm sideeffect "", "~{v[20:21]}"() #0
  call void asm sideeffect "", "~{v22}"() #0

  %wide.sgpr0 = call <16 x i32> asm sideeffect "; def $0", "=s" () #0
  %wide.sgpr1 = call <16 x i32> asm sideeffect "; def $0", "=s" () #0
  %wide.sgpr2 = call <16 x i32> asm sideeffect "; def $0", "=s" () #0
  %wide.sgpr3 = call <16 x i32> asm sideeffect "; def $0", "=s" () #0
  %wide.sgpr4 = call <2 x i32> asm sideeffect "; def $0", "=s" () #0
  %cmp = icmp eq i32 %in, 0
  br i1 %cmp, label %bb0, label %ret

bb0:
  call void asm sideeffect "; use $0", "s"(<16 x i32> %wide.sgpr0) #0
  call void asm sideeffect "; use $0", "s"(<16 x i32> %wide.sgpr1) #0
  call void asm sideeffect "; use $0", "s"(<16 x i32> %wide.sgpr2) #0
  call void asm sideeffect "; use $0", "s"(<16 x i32> %wide.sgpr3) #0
  call void asm sideeffect "; use $0", "s"(<2 x i32> %wide.sgpr4) #0
  br label %ret

ret:
  ret void
}

attributes #0 = { nounwind }
attributes #1 = { nounwind "amdgpu-waves-per-eu"="10,10" }

!llvm.module.flags = !{!0}
!0 = !{i32 1, !"amdgpu_code_object_version", i32 500}