1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc < %s -march=amdgcn -mcpu=gfx1010 | FileCheck %s --check-prefix=GCN
3
4define void @vgpr_descriptor_waterfall_loop_idom_update(<4 x i32>* %arg) #0 {
5; GCN-LABEL: vgpr_descriptor_waterfall_loop_idom_update:
6; GCN:       ; %bb.0: ; %entry
7; GCN-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
8; GCN-NEXT:    s_waitcnt_vscnt null, 0x0
9; GCN-NEXT:  BB0_1: ; %bb0
10; GCN-NEXT:    ; =>This Loop Header: Depth=1
11; GCN-NEXT:    ; Child Loop BB0_2 Depth 2
12; GCN-NEXT:    v_add_co_u32_e64 v2, vcc_lo, v0, 8
13; GCN-NEXT:    s_mov_b32 s5, exec_lo
14; GCN-NEXT:    v_add_co_ci_u32_e32 v3, vcc_lo, 0, v1, vcc_lo
15; GCN-NEXT:    s_clause 0x1
16; GCN-NEXT:    flat_load_dwordx2 v[2:3], v[2:3]
17; GCN-NEXT:    flat_load_dwordx2 v[4:5], v[0:1]
18; GCN-NEXT:  BB0_2: ; Parent Loop BB0_1 Depth=1
19; GCN-NEXT:    ; => This Inner Loop Header: Depth=2
20; GCN-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
21; GCN-NEXT:    v_readfirstlane_b32 s8, v4
22; GCN-NEXT:    v_readfirstlane_b32 s9, v5
23; GCN-NEXT:    v_readfirstlane_b32 s10, v2
24; GCN-NEXT:    v_readfirstlane_b32 s11, v3
25; GCN-NEXT:    v_cmp_eq_u64_e32 vcc_lo, s[8:9], v[4:5]
26; GCN-NEXT:    v_cmp_eq_u64_e64 s4, s[10:11], v[2:3]
27; GCN-NEXT:    s_and_b32 s4, vcc_lo, s4
28; GCN-NEXT:    s_and_saveexec_b32 s4, s4
29; GCN-NEXT:    s_nop 0
30; GCN-NEXT:    buffer_store_dword v0, v0, s[8:11], 0 offen
31; GCN-NEXT:    s_waitcnt_depctr 0xffe3
32; GCN-NEXT:    s_xor_b32 exec_lo, exec_lo, s4
33; GCN-NEXT:    s_cbranch_execnz BB0_2
34; GCN-NEXT:  ; %bb.3: ; in Loop: Header=BB0_1 Depth=1
35; GCN-NEXT:    s_mov_b32 exec_lo, s5
36; GCN-NEXT:    s_branch BB0_1
37entry:
38  br label %bb0
39
40bb0:
41  %desc = load <4 x i32>, <4 x i32>* %arg, align 8
42  tail call void @llvm.amdgcn.raw.buffer.store.f32(float undef, <4 x i32> %desc, i32 undef, i32 0, i32 0)
43  br label %bb0
44}
45
46declare void @llvm.amdgcn.raw.buffer.store.f32(float, <4 x i32>, i32, i32, i32 immarg) #0
47
48attributes #0 = { nounwind writeonly }
49