llvm-project/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.struct.buffer.load.ll

;RUN: llc < %s -march=amdgcn -mcpu=verde -verify-machineinstrs | FileCheck %s
;RUN: llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs | FileCheck %s --check-prefixes=CHECK,VI

;CHECK-LABEL: {{^}}buffer_load:
;CHECK: buffer_load_dwordx4 v[0:3], {{v[0-9]+}}, s[0:3], 0 idxen
;CHECK: buffer_load_dwordx4 v[4:7], {{v[0-9]+}}, s[0:3], 0 idxen glc
;CHECK: buffer_load_dwordx4 v[8:11], {{v[0-9]+}}, s[0:3], 0 idxen slc
;CHECK: s_waitcnt
define amdgpu_ps {<4 x float>, <4 x float>, <4 x float>} @buffer_load(<4 x i32> inreg) {
main_body:
  %data = call <4 x float> @llvm.amdgcn.struct.buffer.load.v4f32(<4 x i32> %0, i32 0, i32 0, i32 0, i32 0)
  %data_glc = call <4 x float> @llvm.amdgcn.struct.buffer.load.v4f32(<4 x i32> %0, i32 0, i32 0, i32 0, i32 1)
  %data_slc = call <4 x float> @llvm.amdgcn.struct.buffer.load.v4f32(<4 x i32> %0, i32 0, i32 0, i32 0, i32 2)
  %r0 = insertvalue {<4 x float>, <4 x float>, <4 x float>} undef, <4 x float> %data, 0
  %r1 = insertvalue {<4 x float>, <4 x float>, <4 x float>} %r0, <4 x float> %data_glc, 1
  %r2 = insertvalue {<4 x float>, <4 x float>, <4 x float>} %r1, <4 x float> %data_slc, 2
  ret {<4 x float>, <4 x float>, <4 x float>} %r2
}

;CHECK-LABEL: {{^}}buffer_load_immoffs:
;CHECK: buffer_load_dwordx4 v[0:3], {{v[0-9]+}}, s[0:3], 0 idxen offset:40
;CHECK: s_waitcnt
define amdgpu_ps <4 x float> @buffer_load_immoffs(<4 x i32> inreg) {
main_body:
  %data = call <4 x float> @llvm.amdgcn.struct.buffer.load.v4f32(<4 x i32> %0, i32 0, i32 40, i32 0, i32 0)
  ret <4 x float> %data
}

;CHECK-LABEL: {{^}}buffer_load_immoffs_large:
;CHECK: s_movk_i32 [[OFFSET:s[0-9]+]], 0x1ffc
;CHECK: buffer_load_dwordx4 v[0:3], {{v[0-9]+}}, s[0:3], [[OFFSET]] idxen offset:4
;CHECK: s_waitcnt
define amdgpu_ps <4 x float> @buffer_load_immoffs_large(<4 x i32> inreg) {
main_body:
  %data = call <4 x float> @llvm.amdgcn.struct.buffer.load.v4f32(<4 x i32> %0, i32 0, i32 4, i32 8188, i32 0)
  ret <4 x float> %data
}

;CHECK-LABEL: {{^}}buffer_load_idx:
;CHECK: buffer_load_dwordx4 v[0:3], v0, s[0:3], 0 idxen
;CHECK: s_waitcnt
define amdgpu_ps <4 x float> @buffer_load_idx(<4 x i32> inreg, i32) {
main_body:
  %data = call <4 x float> @llvm.amdgcn.struct.buffer.load.v4f32(<4 x i32> %0, i32 %1, i32 0, i32 0, i32 0)
  ret <4 x float> %data
}

;CHECK-LABEL: {{^}}buffer_load_ofs:
;CHECK: buffer_load_dwordx4 v[0:3], v[0:1], s[0:3], 0 idxen offen
;CHECK: s_waitcnt
define amdgpu_ps <4 x float> @buffer_load_ofs(<4 x i32> inreg, i32) {
main_body:
  %data = call <4 x float> @llvm.amdgcn.struct.buffer.load.v4f32(<4 x i32> %0, i32 0, i32 %1, i32 0, i32 0)
  ret <4 x float> %data
}

;CHECK-LABEL: {{^}}buffer_load_ofs_imm:
;CHECK: buffer_load_dwordx4 v[0:3], v[0:1], s[0:3], 0 idxen offen offset:60
;CHECK: s_waitcnt
define amdgpu_ps <4 x float> @buffer_load_ofs_imm(<4 x i32> inreg, i32) {
main_body:
  %ofs = add i32 %1, 60
  %data = call <4 x float> @llvm.amdgcn.struct.buffer.load.v4f32(<4 x i32> %0, i32 0, i32 %ofs, i32 0, i32 0)
  ret <4 x float> %data
}

;CHECK-LABEL: {{^}}buffer_load_both:
;CHECK: buffer_load_dwordx4 v[0:3], v[0:1], s[0:3], 0 idxen offen
;CHECK: s_waitcnt
define amdgpu_ps <4 x float> @buffer_load_both(<4 x i32> inreg, i32, i32) {
main_body:
  %data = call <4 x float> @llvm.amdgcn.struct.buffer.load.v4f32(<4 x i32> %0, i32 %1, i32 %2, i32 0, i32 0)
  ret <4 x float> %data
}

;CHECK-LABEL: {{^}}buffer_load_both_reversed:
;CHECK: v_mov_b32_e32 v2, v0
;CHECK: buffer_load_dwordx4 v[0:3], v[1:2], s[0:3], 0 idxen offen
;CHECK: s_waitcnt
define amdgpu_ps <4 x float> @buffer_load_both_reversed(<4 x i32> inreg, i32, i32) {
main_body:
  %data = call <4 x float> @llvm.amdgcn.struct.buffer.load.v4f32(<4 x i32> %0, i32 %2, i32 %1, i32 0, i32 0)
  ret <4 x float> %data
}

;CHECK-LABEL: {{^}}buffer_load_x1:
;CHECK: buffer_load_dword v0, v[0:1], s[0:3], 0 idxen offen
;CHECK: s_waitcnt
define amdgpu_ps float @buffer_load_x1(<4 x i32> inreg %rsrc, i32 %idx, i32 %ofs) {
main_body:
  %data = call float @llvm.amdgcn.struct.buffer.load.f32(<4 x i32> %rsrc, i32 %idx, i32 %ofs, i32 0, i32 0)
  ret float %data
}

;CHECK-LABEL: {{^}}buffer_load_x2:
;CHECK: buffer_load_dwordx2 v[0:1], v[0:1], s[0:3], 0 idxen offen
;CHECK: s_waitcnt
define amdgpu_ps <2 x float> @buffer_load_x2(<4 x i32> inreg %rsrc, i32 %idx, i32 %ofs) {
main_body:
  %data = call <2 x float> @llvm.amdgcn.struct.buffer.load.v2f32(<4 x i32> %rsrc, i32 %idx, i32 %ofs, i32 0, i32 0)
  ret <2 x float> %data
}

;CHECK-LABEL: {{^}}buffer_load_negative_offset:
;CHECK: v_add_{{[iu]}}32_e32 {{v[0-9]+}}, vcc, -16, v0
;CHECK: buffer_load_dwordx4 v[0:3], {{v\[[0-9]+:[0-9]+\]}}, s[0:3], 0 idxen offen
define amdgpu_ps <4 x float> @buffer_load_negative_offset(<4 x i32> inreg, i32 %ofs) {
main_body:
  %ofs.1 = add i32 %ofs, -16
  %data = call <4 x float> @llvm.amdgcn.struct.buffer.load.v4f32(<4 x i32> %0, i32 0, i32 %ofs.1, i32 0, i32 0)
  ret <4 x float> %data
}

; SI won't merge ds memory operations, because of the signed offset bug, so
; we only have check lines for VI.
; CHECK-LABEL: buffer_load_mmo:
; VI: v_mov_b32_e32 [[ZERO:v[0-9]+]], 0
; VI: ds_write2_b32 v{{[0-9]+}}, [[ZERO]], [[ZERO]] offset1:4
define amdgpu_ps float @buffer_load_mmo(<4 x i32> inreg %rsrc, float addrspace(3)* %lds) {
entry:
  store float 0.0, float addrspace(3)* %lds
  %val = call float @llvm.amdgcn.struct.buffer.load.f32(<4 x i32> %rsrc, i32 0, i32 0, i32 0, i32 0)
  %tmp2 = getelementptr float, float addrspace(3)* %lds, i32 4
  store float 0.0, float addrspace(3)* %tmp2
  ret float %val
}

;CHECK-LABEL: {{^}}buffer_load_int:
;CHECK: buffer_load_dwordx4 v[0:3], {{v[0-9]+}}, s[0:3], 0 idxen
;CHECK: buffer_load_dwordx2 v[4:5], {{v[0-9]+}}, s[0:3], 0 idxen glc
;CHECK: buffer_load_dword v6, {{v[0-9]+}}, s[0:3], 0 idxen slc
;CHECK: s_waitcnt
define amdgpu_ps {<4 x float>, <2 x float>, float} @buffer_load_int(<4 x i32> inreg) {
main_body:
  %data = call <4 x i32> @llvm.amdgcn.struct.buffer.load.v4i32(<4 x i32> %0, i32 0, i32 0, i32 0, i32 0)
  %data_glc = call <2 x i32> @llvm.amdgcn.struct.buffer.load.v2i32(<4 x i32> %0, i32 0, i32 0, i32 0, i32 1)
  %data_slc = call i32 @llvm.amdgcn.struct.buffer.load.i32(<4 x i32> %0, i32 0, i32 0, i32 0, i32 2)
  %fdata = bitcast <4 x i32> %data to <4 x float>
  %fdata_glc = bitcast <2 x i32> %data_glc to <2 x float>
  %fdata_slc = bitcast i32 %data_slc to float
  %r0 = insertvalue {<4 x float>, <2 x float>, float} undef, <4 x float> %fdata, 0
  %r1 = insertvalue {<4 x float>, <2 x float>, float} %r0, <2 x float> %fdata_glc, 1
  %r2 = insertvalue {<4 x float>, <2 x float>, float} %r1, float %fdata_slc, 2
  ret {<4 x float>, <2 x float>, float} %r2
}

;CHECK-LABEL: {{^}}struct_buffer_load_ubyte:
;CHECK-NEXT: %bb.
;CHECK-NEXT: buffer_load_ubyte v{{[0-9]}}, v[0:1], s[0:3], 0 idxen offen
;CHECK: s_waitcnt vmcnt(0)
;CHECK-NEXT: v_cvt_f32_ubyte0_e32 v0, v0
;CHECK-NEXT: ; return to shader part epilog
define amdgpu_ps float @struct_buffer_load_ubyte(<4 x i32> inreg %rsrc, i32 %idx, i32 %ofs) {
main_body:
  %tmp = call i8 @llvm.amdgcn.struct.buffer.load.i8(<4 x i32> %rsrc, i32 %idx, i32 %ofs, i32 0, i32 0)
  %tmp2 = zext i8 %tmp to i32
  %val = uitofp i32 %tmp2 to float
  ret float %val
}

;CHECK-LABEL: {{^}}struct_buffer_load_ushort:
;CHECK-NEXT: %bb.
;CHECK-NEXT: buffer_load_ushort v{{[0-9]}}, v[0:1], s[0:3], 0 idxen offen
;CHECK-NEXT: s_waitcnt vmcnt(0)
;CHECK-NEXT: v_cvt_f32_u32_e32 v0, v0
;CHECK-NEXT: ; return to shader part epilog
define amdgpu_ps float @struct_buffer_load_ushort(<4 x i32> inreg %rsrc, i32 %idx, i32 %ofs) {
main_body:
  %tmp = call i16 @llvm.amdgcn.struct.buffer.load.i16(<4 x i32> %rsrc, i32 %idx, i32 %ofs, i32 0, i32 0)
  %tmp2 = zext i16 %tmp to i32
  %val = uitofp i32 %tmp2 to float
  ret float %val
}

;CHECK-LABEL: {{^}}struct_buffer_load_sbyte:
;CHECK-NEXT: %bb.
;CHECK-NEXT: buffer_load_sbyte v{{[0-9]}}, v[0:1], s[0:3], 0 idxen offen
;CHECK-NEXT: s_waitcnt vmcnt(0)
;CHECK-NEXT: v_cvt_f32_i32_e32 v0, v0
;CHECK-NEXT: ; return to shader part epilog
define amdgpu_ps float @struct_buffer_load_sbyte(<4 x i32> inreg %rsrc, i32 %idx, i32 %ofs) {
main_body:
  %tmp = call i8 @llvm.amdgcn.struct.buffer.load.i8(<4 x i32> %rsrc, i32 %idx, i32 %ofs, i32 0, i32 0)
  %tmp2 = sext i8 %tmp to i32
  %val = sitofp i32 %tmp2 to float
  ret float %val
}

;CHECK-LABEL: {{^}}struct_buffer_load_sshort:
;CHECK-NEXT: %bb.
;CHECK-NEXT: buffer_load_sshort v{{[0-9]}}, v[0:1], s[0:3], 0 idxen offen
;CHECK-NEXT: s_waitcnt vmcnt(0)
;CHECK-NEXT: v_cvt_f32_i32_e32 v0, v0
;CHECK-NEXT: ; return to shader part epilog
define amdgpu_ps float @struct_buffer_load_sshort(<4 x i32> inreg %rsrc, i32 %idx, i32 %ofs) {
main_body:
  %tmp = call i16 @llvm.amdgcn.struct.buffer.load.i16(<4 x i32> %rsrc, i32 %idx, i32 %ofs, i32 0, i32 0)
  %tmp2 = sext i16 %tmp to i32
  %val = sitofp i32 %tmp2 to float
  ret float %val
}

;CHECK-LABEL: {{^}}struct_buffer_load_f16:
;CHECK-NEXT: %bb.
;CHECK-NEXT: buffer_load_ushort [[VAL:v[0-9]+]], v1, s[0:3], 0 idxen
;CHECK: s_waitcnt vmcnt(0)
;CHECK: ds_write_b16 v0, [[VAL]]
define amdgpu_ps void @struct_buffer_load_f16(<4 x i32> inreg %rsrc, half addrspace(3)* %ptr, i32 %idx) {
main_body:
  %val = call half @llvm.amdgcn.struct.buffer.load.f16(<4 x i32> %rsrc, i32 %idx, i32 0, i32 0, i32 0)
  store half %val, half addrspace(3)* %ptr
  ret void
}

;CHECK-LABEL: {{^}}struct_buffer_load_v2f16:
;CHECK-NEXT: %bb.
;CHECK-NEXT: buffer_load_dword [[VAL:v[0-9]+]], v1, s[0:3], 0 idxen
;CHECK: s_waitcnt vmcnt(0)
;CHECK: ds_write_b32 v0, [[VAL]]
define amdgpu_ps void @struct_buffer_load_v2f16(<4 x i32> inreg %rsrc, <2 x half> addrspace(3)* %ptr, i32 %idx) {
main_body:
  %val = call <2 x half> @llvm.amdgcn.struct.buffer.load.v2f16(<4 x i32> %rsrc, i32 %idx, i32 0, i32 0, i32 0)
  store <2 x half> %val, <2 x half> addrspace(3)* %ptr
  ret void
}

;CHECK-LABEL: {{^}}struct_buffer_load_v4f16:
;CHECK-NEXT: %bb.
;CHECK-NEXT: buffer_load_dwordx2 [[VAL:v\[[0-9]+:[0-9]+\]]], v1, s[0:3], 0 idxen
;CHECK: s_waitcnt vmcnt(0)
;CHECK: ds_write_b64 v0, [[VAL]]
define amdgpu_ps void @struct_buffer_load_v4f16(<4 x i32> inreg %rsrc, <4 x half> addrspace(3)* %ptr, i32 %idx) {
main_body:
  %val = call <4 x half> @llvm.amdgcn.struct.buffer.load.v4f16(<4 x i32> %rsrc, i32 %idx, i32 0, i32 0, i32 0)
  store <4 x half> %val, <4 x half> addrspace(3)* %ptr
  ret void
}

;CHECK-LABEL: {{^}}struct_buffer_load_i16:
;CHECK-NEXT: %bb.
;CHECK-NEXT: buffer_load_ushort [[VAL:v[0-9]+]], v1, s[0:3], 0 idxen
;CHECK: s_waitcnt vmcnt(0)
;CHECK: ds_write_b16 v0, [[VAL]]
define amdgpu_ps void @struct_buffer_load_i16(<4 x i32> inreg %rsrc, i16 addrspace(3)* %ptr, i32 %idx) {
main_body:
  %val = call i16 @llvm.amdgcn.struct.buffer.load.i16(<4 x i32> %rsrc, i32 %idx, i32 0, i32 0, i32 0)
  store i16 %val, i16 addrspace(3)* %ptr
  ret void
}

;CHECK-LABEL: {{^}}struct_buffer_load_v2i16:
;CHECK-NEXT: %bb.
;CHECK-NEXT: buffer_load_dword [[VAL:v[0-9]+]], v1, s[0:3], 0 idxen
;CHECK: s_waitcnt vmcnt(0)
;CHECK: ds_write_b32 v0, [[VAL]]
define amdgpu_ps void @struct_buffer_load_v2i16(<4 x i32> inreg %rsrc, <2 x i16> addrspace(3)* %ptr, i32 %idx) {
main_body:
  %val = call <2 x i16> @llvm.amdgcn.struct.buffer.load.v2i16(<4 x i32> %rsrc, i32 %idx, i32 0, i32 0, i32 0)
  store <2 x i16> %val, <2 x i16> addrspace(3)* %ptr
  ret void
}

;CHECK-LABEL: {{^}}struct_buffer_load_v4i16:
;CHECK-NEXT: %bb.
;CHECK-NEXT: buffer_load_dwordx2 [[VAL:v\[[0-9]+:[0-9]+\]]], v1, s[0:3], 0 idxen
;CHECK: s_waitcnt vmcnt(0)
;CHECK: ds_write_b64 v0, [[VAL]]
define amdgpu_ps void @struct_buffer_load_v4i16(<4 x i32> inreg %rsrc, <4 x i16> addrspace(3)* %ptr, i32 %idx) {
main_body:
  %val = call <4 x i16> @llvm.amdgcn.struct.buffer.load.v4i16(<4 x i32> %rsrc, i32 %idx, i32 0, i32 0, i32 0)
  store <4 x i16> %val, <4 x i16> addrspace(3)* %ptr
  ret void
}

declare float @llvm.amdgcn.struct.buffer.load.f32(<4 x i32>, i32, i32, i32, i32) #0
declare <2 x float> @llvm.amdgcn.struct.buffer.load.v2f32(<4 x i32>, i32, i32, i32, i32) #0
declare <4 x float> @llvm.amdgcn.struct.buffer.load.v4f32(<4 x i32>, i32, i32, i32, i32) #0
declare i32 @llvm.amdgcn.struct.buffer.load.i32(<4 x i32>, i32, i32, i32, i32) #0
declare <2 x i32> @llvm.amdgcn.struct.buffer.load.v2i32(<4 x i32>, i32, i32, i32, i32) #0
declare <4 x i32> @llvm.amdgcn.struct.buffer.load.v4i32(<4 x i32>, i32, i32, i32, i32) #0
declare void @llvm.amdgcn.exp.f32(i32, i32, float, float, float, float, i1, i1) #0
declare i8 @llvm.amdgcn.struct.buffer.load.i8(<4 x i32>, i32, i32, i32, i32) #0

declare half @llvm.amdgcn.struct.buffer.load.f16(<4 x i32>, i32, i32, i32, i32) #0
declare <2 x half> @llvm.amdgcn.struct.buffer.load.v2f16(<4 x i32>, i32, i32, i32, i32) #0
declare <4 x half> @llvm.amdgcn.struct.buffer.load.v4f16(<4 x i32>, i32, i32, i32, i32) #0

declare i16 @llvm.amdgcn.struct.buffer.load.i16(<4 x i32>, i32, i32, i32, i32) #0
declare <2 x i16> @llvm.amdgcn.struct.buffer.load.v2i16(<4 x i32>, i32, i32, i32, i32) #0
declare <4 x i16> @llvm.amdgcn.struct.buffer.load.v4i16(<4 x i32>, i32, i32, i32, i32) #0

attributes #0 = { nounwind readonly }