llvm/test/CodeGen/AMDGPU/llvm.amdgcn.global.prefetch.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc -global-isel=0 -mtriple=amdgcn -mcpu=gfx1250 < %s | FileCheck --check-prefix=GCN %s
; RUN: llc -global-isel=1 -new-reg-bank-select -mtriple=amdgcn -mcpu=gfx1250 < %s | FileCheck --check-prefix=GCN %s

declare void @llvm.amdgcn.global.prefetch(ptr addrspace(1) %ptr, i32 %col)

define amdgpu_ps void @global_prefetch(ptr addrspace(1) %ptr) {
; GCN-LABEL: global_prefetch:
; GCN:       ; %bb.0: ; %entry
; GCN-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_WAVE_MODE, 25, 1), 1 ; msbs: dst=0 src0=0 src1=0 src2=0
; GCN-NEXT:    global_prefetch_b8 v[0:1], off
; GCN-NEXT:    s_endpgm
entry:
  tail call void @llvm.amdgcn.global.prefetch(ptr addrspace(1) %ptr, i32 0)
  ret void
}

define amdgpu_ps void @global_prefetch_sgpr(ptr addrspace(1) inreg %ptr) {
; GCN-LABEL: global_prefetch_sgpr:
; GCN:       ; %bb.0: ; %entry
; GCN-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_WAVE_MODE, 25, 1), 1 ; msbs: dst=0 src0=0 src1=0 src2=0
; GCN-NEXT:    v_mov_b32_e32 v0, 0
; GCN-NEXT:    global_prefetch_b8 v0, s[0:1]
; GCN-NEXT:    s_endpgm
entry:
  tail call void @llvm.amdgcn.global.prefetch(ptr addrspace(1) %ptr, i32 0)
  ret void
}

define amdgpu_ps void @global_prefetch_offset(ptr addrspace(1) %ptr) {
; GCN-LABEL: global_prefetch_offset:
; GCN:       ; %bb.0: ; %entry
; GCN-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_WAVE_MODE, 25, 1), 1 ; msbs: dst=0 src0=0 src1=0 src2=0
; GCN-NEXT:    global_prefetch_b8 v[0:1], off offset:512
; GCN-NEXT:    s_endpgm
entry:
  %gep = getelementptr inbounds i32, ptr addrspace(1) %ptr, i32 128
  tail call void @llvm.amdgcn.global.prefetch(ptr addrspace(1) %gep, i32 0)
  ret void
}

define amdgpu_ps void @global_prefetch_sgpr_voffset(ptr addrspace(1) inreg %ptr, i32 %offset) {
; GCN-LABEL: global_prefetch_sgpr_voffset:
; GCN:       ; %bb.0: ; %entry
; GCN-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_WAVE_MODE, 25, 1), 1 ; msbs: dst=0 src0=0 src1=0 src2=0
; GCN-NEXT:    global_prefetch_b8 v0, s[0:1]
; GCN-NEXT:    s_endpgm
entry:
  %gep = getelementptr i8, ptr addrspace(1) %ptr, i32 %offset
  tail call void @llvm.amdgcn.global.prefetch(ptr addrspace(1) %gep, i32 0)
  ret void
}

define amdgpu_ps void @global_prefetch_sgpr_voffset_offset(ptr addrspace(1) inreg %ptr, i32 %offset) {
; GCN-LABEL: global_prefetch_sgpr_voffset_offset:
; GCN:       ; %bb.0: ; %entry
; GCN-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_WAVE_MODE, 25, 1), 1 ; msbs: dst=0 src0=0 src1=0 src2=0
; GCN-NEXT:    global_prefetch_b8 v0, s[0:1] offset:128
; GCN-NEXT:    s_endpgm
entry:
  %gep1 = getelementptr i8, ptr addrspace(1) %ptr, i32 %offset
  %gep2 = getelementptr i8, ptr addrspace(1) %gep1, i32 128
  tail call void @llvm.amdgcn.global.prefetch(ptr addrspace(1) %gep2, i32 0)
  ret void
}

define amdgpu_ps void @global_prefetch_se(ptr addrspace(1) %ptr) {
; GCN-LABEL: global_prefetch_se:
; GCN:       ; %bb.0: ; %entry
; GCN-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_WAVE_MODE, 25, 1), 1 ; msbs: dst=0 src0=0 src1=0 src2=0
; GCN-NEXT:    global_prefetch_b8 v[0:1], off scope:SCOPE_SE
; GCN-NEXT:    s_endpgm
entry:
  tail call void @llvm.amdgcn.global.prefetch(ptr addrspace(1) %ptr, i32 8)
  ret void
}

define amdgpu_ps void @global_prefetch_se_nt(ptr addrspace(1) %ptr) {
; GCN-LABEL: global_prefetch_se_nt:
; GCN:       ; %bb.0: ; %entry
; GCN-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_WAVE_MODE, 25, 1), 1 ; msbs: dst=0 src0=0 src1=0 src2=0
; GCN-NEXT:    global_prefetch_b8 v[0:1], off th:TH_LOAD_NT scope:SCOPE_SE
; GCN-NEXT:    s_endpgm
entry:
  tail call void @llvm.amdgcn.global.prefetch(ptr addrspace(1) %ptr, i32 9)
  ret void
}

define amdgpu_ps void @global_prefetch_dev_ht(ptr addrspace(1) %ptr) {
; GCN-LABEL: global_prefetch_dev_ht:
; GCN:       ; %bb.0: ; %entry
; GCN-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_WAVE_MODE, 25, 1), 1 ; msbs: dst=0 src0=0 src1=0 src2=0
; GCN-NEXT:    global_prefetch_b8 v[0:1], off th:TH_LOAD_HT scope:SCOPE_DEV
; GCN-NEXT:    s_endpgm
entry:
  tail call void @llvm.amdgcn.global.prefetch(ptr addrspace(1) %ptr, i32 18)
  ret void
}

define amdgpu_ps void @global_prefetch_sys_lu(ptr addrspace(1) %ptr) {
; GCN-LABEL: global_prefetch_sys_lu:
; GCN:       ; %bb.0: ; %entry
; GCN-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_WAVE_MODE, 25, 1), 1 ; msbs: dst=0 src0=0 src1=0 src2=0
; GCN-NEXT:    global_prefetch_b8 v[0:1], off th:TH_LOAD_BYPASS scope:SCOPE_SYS
; GCN-NEXT:    s_endpgm
entry:
  tail call void @llvm.amdgcn.global.prefetch(ptr addrspace(1) %ptr, i32 27)
  ret void
}

define amdgpu_ps float @global_prefetch_and_load_b32_idxprom(ptr addrspace(1) align 4 inreg %p, i32 %idx) {
; GCN-LABEL: global_prefetch_and_load_b32_idxprom:
; GCN:       ; %bb.0: ; %entry
; GCN-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_WAVE_MODE, 25, 1), 1 ; msbs: dst=0 src0=0 src1=0 src2=0
; GCN-NEXT:    v_ashrrev_i32_e32 v1, 31, v0
; GCN-NEXT:    s_delay_alu instid0(VALU_DEP_1)
; GCN-NEXT:    v_lshl_add_u64 v[2:3], v[0:1], 2, s[0:1]
; GCN-NEXT:    global_prefetch_b8 v[2:3], off
; GCN-NEXT:    global_load_b32 v0, v0, s[0:1] scale_offset
; GCN-NEXT:    s_wait_loadcnt 0x0
; GCN-NEXT:    ; return to shader part epilog
entry:
  %idxprom = sext i32 %idx to i64
  %ptr = getelementptr inbounds float, ptr addrspace(1) %p, i64 %idxprom
  tail call void @llvm.amdgcn.global.prefetch(ptr addrspace(1) %ptr, i32 0)
  %ret = load float, ptr addrspace(1) %ptr, align 4
  ret float %ret
}