1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
2 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1030 -global-isel -verify-machineinstrs < %s | FileCheck %s
4 ; early-tailduplication deletes cycle exit block created by structurize-cfg
5 ; that had exactly one predecessor. Now, new cycle exit block has two
6 ; predecessors, we need to find predecessor that belongs to the cycle.
8 define amdgpu_ps void @_amdgpu_ps_main(i1 %arg) {
9 ; CHECK-LABEL: _amdgpu_ps_main:
10 ; CHECK: ; %bb.0: ; %bb
11 ; CHECK-NEXT: s_mov_b32 s4, 0
12 ; CHECK-NEXT: v_and_b32_e32 v0, 1, v0
13 ; CHECK-NEXT: s_mov_b32 s5, s4
14 ; CHECK-NEXT: s_mov_b32 s6, s4
15 ; CHECK-NEXT: s_mov_b32 s7, s4
16 ; CHECK-NEXT: s_mov_b32 s8, SCRATCH_RSRC_DWORD0
17 ; CHECK-NEXT: s_buffer_load_dword s1, s[4:7], 0x0
18 ; CHECK-NEXT: s_mov_b32 s9, SCRATCH_RSRC_DWORD1
19 ; CHECK-NEXT: s_mov_b32 s10, -1
20 ; CHECK-NEXT: s_mov_b32 s11, 0x31c16000
21 ; CHECK-NEXT: s_add_u32 s8, s8, s0
22 ; CHECK-NEXT: v_cmp_ne_u32_e64 s0, 0, v0
23 ; CHECK-NEXT: s_addc_u32 s9, s9, 0
24 ; CHECK-NEXT: s_mov_b32 s32, 0
25 ; CHECK-NEXT: s_waitcnt lgkmcnt(0)
26 ; CHECK-NEXT: s_cmp_ge_i32 s1, 0
27 ; CHECK-NEXT: s_cbranch_scc0 .LBB0_2
28 ; CHECK-NEXT: .LBB0_1: ; %bb12
29 ; CHECK-NEXT: v_cndmask_b32_e64 v0, 1.0, 0, s4
30 ; CHECK-NEXT: v_mov_b32_e32 v1, 0
31 ; CHECK-NEXT: v_mov_b32_e32 v2, 0
32 ; CHECK-NEXT: v_mov_b32_e32 v3, 0
33 ; CHECK-NEXT: v_mov_b32_e32 v4, 0
34 ; CHECK-NEXT: s_mov_b64 s[0:1], s[8:9]
35 ; CHECK-NEXT: s_mov_b64 s[2:3], s[10:11]
36 ; CHECK-NEXT: s_swappc_b64 s[30:31], 0
37 ; CHECK-NEXT: .LBB0_2: ; %bb2.preheader
38 ; CHECK-NEXT: s_mov_b32 s1, 0
39 ; CHECK-NEXT: v_mov_b32_e32 v0, s1
40 ; CHECK-NEXT: s_branch .LBB0_4
41 ; CHECK-NEXT: .p2align 6
42 ; CHECK-NEXT: .LBB0_3: ; %bb6
43 ; CHECK-NEXT: ; in Loop: Header=BB0_4 Depth=1
44 ; CHECK-NEXT: s_or_b32 exec_lo, exec_lo, s3
45 ; CHECK-NEXT: s_and_b32 s2, 1, s2
46 ; CHECK-NEXT: v_or_b32_e32 v1, 1, v0
47 ; CHECK-NEXT: v_cmp_ne_u32_e64 s2, 0, s2
48 ; CHECK-NEXT: v_cmp_gt_i32_e32 vcc_lo, 0, v0
49 ; CHECK-NEXT: v_mov_b32_e32 v0, v1
50 ; CHECK-NEXT: s_and_b32 s4, s2, s1
51 ; CHECK-NEXT: s_andn2_b32 s1, s1, exec_lo
52 ; CHECK-NEXT: s_and_b32 s2, exec_lo, s4
53 ; CHECK-NEXT: s_or_b32 s1, s1, s2
54 ; CHECK-NEXT: s_cbranch_vccz .LBB0_1
55 ; CHECK-NEXT: .LBB0_4: ; %bb2
56 ; CHECK-NEXT: ; =>This Inner Loop Header: Depth=1
57 ; CHECK-NEXT: s_mov_b32 s2, 0
58 ; CHECK-NEXT: s_and_saveexec_b32 s3, s0
59 ; CHECK-NEXT: s_cbranch_execz .LBB0_3
60 ; CHECK-NEXT: ; %bb.5: ; %bb5
61 ; CHECK-NEXT: ; in Loop: Header=BB0_4 Depth=1
62 ; CHECK-NEXT: s_mov_b32 s2, 1
63 ; CHECK-NEXT: s_branch .LBB0_3
65 %i = call i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32> zeroinitializer, i32 0, i32 0)
66 %i1 = icmp slt i32 %i, 0
67 br i1 %i1, label %bb2, label %bb12
70 %i3 = phi i1 [ %i9, %bb6 ], [ false, %bb ]
71 %i4 = phi i32 [ %i10, %bb6 ], [ 0, %bb ]
72 br i1 %arg, label %bb5, label %bb6
78 %i7 = phi i32 [ 0, %bb2 ], [ 1, %bb5 ]
79 %i8 = icmp ne i32 %i7, 0
80 %i9 = select i1 %i8, i1 %i3, i1 false
82 %i11 = icmp slt i32 %i4, 0
83 br i1 %i11, label %bb2, label %bb12
86 %i13 = phi i1 [ false, %bb ], [ %i9, %bb6 ]
87 %i14 = select i1 %i13, float 0.000000e+00, float 1.000000e+00
88 %i15 = insertelement <4 x float> zeroinitializer, float %i14, i64 0
89 call amdgpu_gfx addrspace(4) void null(<4 x float> %i15, i32 0)
93 declare i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32>, i32, i32 immarg)