llvm/test/CodeGen/AMDGPU/load-global-invariant.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s | FileCheck %s

; Check that invariant global loads are treated like constant
; loads. The optnone disables the annotation of of amdgpu.noclobber.

define amdgpu_kernel void @load_constant_v3i64(ptr addrspace(1) %dst, ptr addrspace(4) %src) #0 {
; CHECK-LABEL: load_constant_v3i64:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    v_mov_b32_e32 v4, 0
; CHECK-NEXT:    s_load_dwordx2 s[4:5], s[8:9], 0x0
; CHECK-NEXT:    s_load_dwordx2 s[6:7], s[8:9], 0x8
; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
; CHECK-NEXT:    s_load_dwordx4 s[0:3], s[6:7], 0x0
; CHECK-NEXT:    s_nop 0
; CHECK-NEXT:    s_load_dwordx2 s[6:7], s[6:7], 0x10
; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
; CHECK-NEXT:    v_mov_b32_e32 v0, s6
; CHECK-NEXT:    v_mov_b32_e32 v1, s7
; CHECK-NEXT:    global_store_dwordx2 v4, v[0:1], s[4:5] offset:16
; CHECK-NEXT:    v_mov_b32_e32 v0, s0
; CHECK-NEXT:    v_mov_b32_e32 v1, s1
; CHECK-NEXT:    v_mov_b32_e32 v2, s2
; CHECK-NEXT:    v_mov_b32_e32 v3, s3
; CHECK-NEXT:    global_store_dwordx4 v4, v[0:3], s[4:5]
; CHECK-NEXT:    s_endpgm
  %ld = load <3 x i64>, ptr addrspace(4) %src, align 32
  store <3 x i64> %ld, ptr addrspace(1) %dst, align 32
  ret void
}

define amdgpu_kernel void @load_global_v3i64(ptr addrspace(1) %dst, ptr addrspace(1) %src) #0 {
; CHECK-LABEL: load_global_v3i64:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    v_mov_b32_e32 v6, 0
; CHECK-NEXT:    s_load_dwordx2 s[0:1], s[8:9], 0x0
; CHECK-NEXT:    s_load_dwordx2 s[2:3], s[8:9], 0x8
; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
; CHECK-NEXT:    global_load_dwordx4 v[0:3], v6, s[2:3]
; CHECK-NEXT:    global_load_dwordx2 v[4:5], v6, s[2:3] offset:16
; CHECK-NEXT:    s_waitcnt vmcnt(0)
; CHECK-NEXT:    global_store_dwordx2 v6, v[4:5], s[0:1] offset:16
; CHECK-NEXT:    global_store_dwordx4 v6, v[0:3], s[0:1]
; CHECK-NEXT:    s_endpgm
  %ld = load <3 x i64>, ptr addrspace(1) %src, align 32
  store <3 x i64> %ld, ptr addrspace(1) %dst, align 32
  ret void
}

define amdgpu_kernel void @load_global_v3i64_invariant(ptr addrspace(1) %dst, ptr addrspace(1) %src) #0 {
; CHECK-LABEL: load_global_v3i64_invariant:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    v_mov_b32_e32 v4, 0
; CHECK-NEXT:    s_load_dwordx2 s[4:5], s[8:9], 0x0
; CHECK-NEXT:    s_load_dwordx2 s[6:7], s[8:9], 0x8
; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
; CHECK-NEXT:    s_load_dwordx4 s[0:3], s[6:7], 0x0
; CHECK-NEXT:    s_nop 0
; CHECK-NEXT:    s_load_dwordx2 s[6:7], s[6:7], 0x10
; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
; CHECK-NEXT:    v_mov_b32_e32 v0, s6
; CHECK-NEXT:    v_mov_b32_e32 v1, s7
; CHECK-NEXT:    global_store_dwordx2 v4, v[0:1], s[4:5] offset:16
; CHECK-NEXT:    v_mov_b32_e32 v0, s0
; CHECK-NEXT:    v_mov_b32_e32 v1, s1
; CHECK-NEXT:    v_mov_b32_e32 v2, s2
; CHECK-NEXT:    v_mov_b32_e32 v3, s3
; CHECK-NEXT:    global_store_dwordx4 v4, v[0:3], s[4:5]
; CHECK-NEXT:    s_endpgm
  %ld = load <3 x i64>, ptr addrspace(1) %src, align 32, !invariant.load !0
  store <3 x i64> %ld, ptr addrspace(1) %dst, align 32
  ret void
}

attributes #0 = { noinline nounwind optnone }

!0 = !{}