third_party/llvm-7.0/llvm/test/CodeGen/AMDGPU/spill-wide-sgpr.ll

; RUN: llc -O0 -march=amdgcn -mcpu=fiji -amdgpu-spill-sgpr-to-smem=0 -verify-machineinstrs < %s | FileCheck -check-prefix=ALL -check-prefix=VGPR %s
; RUN: llc -O0 -march=amdgcn -mcpu=fiji -amdgpu-spill-sgpr-to-smem=1 -verify-machineinstrs < %s | FileCheck -check-prefix=ALL -check-prefix=SMEM %s
; RUN: llc -O0 -march=amdgcn -mcpu=fiji -amdgpu-spill-sgpr-to-smem=0 -amdgpu-spill-sgpr-to-vgpr=0 -verify-machineinstrs < %s | FileCheck -check-prefix=ALL -check-prefix=VMEM %s

; ALL-LABEL: {{^}}spill_sgpr_x2:
; SMEM: s_add_u32 m0, s3, 0x100{{$}}
; SMEM: s_buffer_store_dwordx2 s{{\[[0-9]+:[0-9]+\]}}, s[8:11], m0 ; 8-byte Folded Spill
; SMEM: s_cbranch_scc1

; SMEM: s_add_u32 m0, s3, 0x100{{$}}
; SMEM: s_buffer_load_dwordx2 s{{\[[0-9]+:[0-9]+\]}}, s[8:11], m0 ; 8-byte Folded Reload

; SMEM: s_dcache_wb
; SMEM: s_endpgm

; FIXME: Should only need 4 bytes
; SMEM: ScratchSize: 12


; VGPR: v_writelane_b32 v{{[0-9]+}}, s{{[0-9]+}}, 0
; VGPR: v_writelane_b32 v{{[0-9]+}}, s{{[0-9]+}}, 1
; VGPR: s_cbranch_scc1

; VGPR: v_readlane_b32 s{{[0-9]+}}, v{{[0-9]+}}, 0
; VGPR: v_readlane_b32 s{{[0-9]+}}, v{{[0-9]+}}, 1

; VMEM: buffer_store_dword
; VMEM: buffer_store_dword
; VMEM: s_cbranch_scc1

; VMEM: buffer_load_dword
; VMEM: buffer_load_dword
define amdgpu_kernel void @spill_sgpr_x2(i32 addrspace(1)* %out, i32 %in) #0 {
  %wide.sgpr = 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"(<2 x i32> %wide.sgpr) #0
  br label %ret

ret:
  ret void
}

; ALL-LABEL: {{^}}spill_sgpr_x4:
; SMEM: s_add_u32 m0, s3, 0x100{{$}}
; SMEM: s_buffer_store_dwordx4 s{{\[[0-9]+:[0-9]+\]}}, s[12:15], m0 ; 16-byte Folded Spill
; SMEM: s_cbranch_scc1

; SMEM: s_add_u32 m0, s3, 0x100{{$}}
; SMEM: s_buffer_load_dwordx4 s{{\[[0-9]+:[0-9]+\]}}, s[12:15], m0 ; 16-byte Folded Reload
; SMEM: s_dcache_wb
; SMEM: s_endpgm

; FIXME: Should only need 4 bytes
; SMEM: ScratchSize: 20

; VGPR: v_writelane_b32 v{{[0-9]+}}, s{{[0-9]+}}, 0
; VGPR: v_writelane_b32 v{{[0-9]+}}, s{{[0-9]+}}, 1
; VGPR: v_writelane_b32 v{{[0-9]+}}, s{{[0-9]+}}, 2
; VGPR: v_writelane_b32 v{{[0-9]+}}, s{{[0-9]+}}, 3
; VGPR: s_cbranch_scc1

; VGPR: v_readlane_b32 s{{[0-9]+}}, v{{[0-9]+}}, 0
; VGPR: v_readlane_b32 s{{[0-9]+}}, v{{[0-9]+}}, 1
; VGPR: v_readlane_b32 s{{[0-9]+}}, v{{[0-9]+}}, 2
; VGPR: v_readlane_b32 s{{[0-9]+}}, v{{[0-9]+}}, 3


; VMEM: buffer_store_dword
; VMEM: buffer_store_dword
; VMEM: buffer_store_dword
; VMEM: buffer_store_dword
; VMEM: s_cbranch_scc1

; VMEM: buffer_load_dword
; VMEM: buffer_load_dword
; VMEM: buffer_load_dword
; VMEM: buffer_load_dword
define amdgpu_kernel void @spill_sgpr_x4(i32 addrspace(1)* %out, i32 %in) #0 {
  %wide.sgpr = call <4 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"(<4 x i32> %wide.sgpr) #0
  br label %ret

ret:
  ret void
}

; ALL-LABEL: {{^}}spill_sgpr_x8:

; SMEM: s_add_u32 m0, s3, 0x100{{$}}
; SMEM: s_buffer_store_dwordx4 s{{\[[0-9]+:[0-9]+\]}}, s[16:19], m0 ; 16-byte Folded Spill
; SMEM: s_add_u32 m0, s3, 0x110{{$}}
; SMEM: s_buffer_store_dwordx4 s{{\[[0-9]+:[0-9]+\]}}, s[16:19], m0 ; 16-byte Folded Spill
; SMEM: s_cbranch_scc1

; SMEM: s_add_u32 m0, s3, 0x100{{$}}
; SMEM: s_buffer_load_dwordx4 s{{\[[0-9]+:[0-9]+\]}}, s[16:19], m0 ; 16-byte Folded Reload
; SMEM: s_add_u32 m0, s3, 0x110{{$}}
; SMEM: s_buffer_load_dwordx4 s{{\[[0-9]+:[0-9]+\]}}, s[16:19], m0 ; 16-byte Folded Reload

; SMEM: s_dcache_wb
; SMEM: s_endpgm

; SMEM: ScratchSize: 36

; VGPR: v_writelane_b32 v{{[0-9]+}}, s{{[0-9]+}}, 0
; VGPR: v_writelane_b32 v{{[0-9]+}}, s{{[0-9]+}}, 1
; VGPR: v_writelane_b32 v{{[0-9]+}}, s{{[0-9]+}}, 2
; VGPR: v_writelane_b32 v{{[0-9]+}}, s{{[0-9]+}}, 3
; VGPR: v_writelane_b32 v{{[0-9]+}}, s{{[0-9]+}}, 4
; VGPR: v_writelane_b32 v{{[0-9]+}}, s{{[0-9]+}}, 5
; VGPR: v_writelane_b32 v{{[0-9]+}}, s{{[0-9]+}}, 6
; VGPR: v_writelane_b32 v{{[0-9]+}}, s{{[0-9]+}}, 7
; VGPR: s_cbranch_scc1

; VGPR: v_readlane_b32 s{{[0-9]+}}, v{{[0-9]+}}, 0
; VGPR: v_readlane_b32 s{{[0-9]+}}, v{{[0-9]+}}, 1
; VGPR: v_readlane_b32 s{{[0-9]+}}, v{{[0-9]+}}, 2
; VGPR: v_readlane_b32 s{{[0-9]+}}, v{{[0-9]+}}, 3
; VGPR: v_readlane_b32 s{{[0-9]+}}, v{{[0-9]+}}, 4
; VGPR: v_readlane_b32 s{{[0-9]+}}, v{{[0-9]+}}, 5
; VGPR: v_readlane_b32 s{{[0-9]+}}, v{{[0-9]+}}, 6
; VGPR: v_readlane_b32 s{{[0-9]+}}, v{{[0-9]+}}, 7

; VMEM: buffer_store_dword
; VMEM: buffer_store_dword
; VMEM: buffer_store_dword
; VMEM: buffer_store_dword
; VMEM: buffer_store_dword
; VMEM: buffer_store_dword
; VMEM: buffer_store_dword
; VMEM: buffer_store_dword
; VMEM: s_cbranch_scc1

; VMEM: buffer_load_dword
; VMEM: buffer_load_dword
; VMEM: buffer_load_dword
; VMEM: buffer_load_dword
; VMEM: buffer_load_dword
; VMEM: buffer_load_dword
; VMEM: buffer_load_dword
; VMEM: buffer_load_dword
define amdgpu_kernel void @spill_sgpr_x8(i32 addrspace(1)* %out, i32 %in) #0 {
  %wide.sgpr = call <8 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"(<8 x i32> %wide.sgpr) #0
  br label %ret

ret:
  ret void
}

; FIXME: x16 inlineasm seems broken
; define amdgpu_kernel void @spill_sgpr_x16(i32 addrspace(1)* %out, i32 %in) #0 {
;   %wide.sgpr = call <16 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.sgpr) #0
;   br label %ret

; ret:
;   ret void
; }

attributes #0 = { nounwind }