1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc < %s -march=amdgcn -mcpu=verde -verify-machineinstrs | FileCheck --check-prefix=SI %s
3 ; RUN: llc < %s -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs | FileCheck --check-prefix=FLAT %s
5 define amdgpu_ps float @uniform_kill(float %a, i32 %b, float %c) {
6 ; SI-LABEL: uniform_kill:
7 ; SI: ; %bb.0: ; %entry
8 ; SI-NEXT: v_cvt_i32_f32_e32 v0, v0
9 ; SI-NEXT: s_mov_b64 s[0:1], exec
10 ; SI-NEXT: s_mov_b64 s[2:3], -1
11 ; SI-NEXT: v_or_b32_e32 v0, v1, v0
12 ; SI-NEXT: v_and_b32_e32 v0, 1, v0
13 ; SI-NEXT: v_cmp_eq_u32_e32 vcc, 1, v0
14 ; SI-NEXT: s_and_saveexec_b64 s[4:5], vcc
15 ; SI-NEXT: ; %bb.1: ; %if1
16 ; SI-NEXT: s_xor_b64 s[2:3], exec, -1
17 ; SI-NEXT: ; %bb.2: ; %endif1
18 ; SI-NEXT: s_or_b64 exec, exec, s[4:5]
19 ; SI-NEXT: s_wqm_b64 s[4:5], s[2:3]
20 ; SI-NEXT: s_xor_b64 s[4:5], s[4:5], exec
21 ; SI-NEXT: s_andn2_b64 s[0:1], s[0:1], s[4:5]
22 ; SI-NEXT: s_cbranch_scc0 BB0_6
23 ; SI-NEXT: ; %bb.3: ; %endif1
24 ; SI-NEXT: s_and_b64 exec, exec, s[0:1]
25 ; SI-NEXT: v_mov_b32_e32 v0, 0
26 ; SI-NEXT: s_and_saveexec_b64 s[0:1], s[2:3]
27 ; SI-NEXT: s_cbranch_execz BB0_5
28 ; SI-NEXT: ; %bb.4: ; %if2
29 ; SI-NEXT: s_mov_b32 s3, 0
30 ; SI-NEXT: v_add_f32_e32 v0, 1.0, v2
31 ; SI-NEXT: s_load_dwordx4 s[4:7], s[2:3], 0x0
32 ; SI-NEXT: v_cvt_i32_f32_e32 v0, v0
33 ; SI-NEXT: s_waitcnt lgkmcnt(0)
34 ; SI-NEXT: buffer_atomic_swap v0, off, s[4:7], 0 offset:4 glc
35 ; SI-NEXT: s_waitcnt vmcnt(0) expcnt(0)
36 ; SI-NEXT: v_cvt_f32_i32_e32 v0, v0
37 ; SI-NEXT: BB0_5: ; %endif2
38 ; SI-NEXT: s_or_b64 exec, exec, s[0:1]
39 ; SI-NEXT: s_branch BB0_7
41 ; SI-NEXT: s_mov_b64 exec, 0
42 ; SI-NEXT: exp null off, off, off, off done vm
46 ; FLAT-LABEL: uniform_kill:
47 ; FLAT: ; %bb.0: ; %entry
48 ; FLAT-NEXT: v_cvt_i32_f32_e32 v0, v0
49 ; FLAT-NEXT: s_mov_b64 s[0:1], exec
50 ; FLAT-NEXT: s_mov_b64 s[2:3], -1
51 ; FLAT-NEXT: v_or_b32_e32 v0, v1, v0
52 ; FLAT-NEXT: v_and_b32_e32 v0, 1, v0
53 ; FLAT-NEXT: v_cmp_eq_u32_e32 vcc, 1, v0
54 ; FLAT-NEXT: s_and_saveexec_b64 s[4:5], vcc
55 ; FLAT-NEXT: ; %bb.1: ; %if1
56 ; FLAT-NEXT: s_xor_b64 s[2:3], exec, -1
57 ; FLAT-NEXT: ; %bb.2: ; %endif1
58 ; FLAT-NEXT: s_or_b64 exec, exec, s[4:5]
59 ; FLAT-NEXT: s_wqm_b64 s[4:5], s[2:3]
60 ; FLAT-NEXT: s_xor_b64 s[4:5], s[4:5], exec
61 ; FLAT-NEXT: s_andn2_b64 s[0:1], s[0:1], s[4:5]
62 ; FLAT-NEXT: s_cbranch_scc0 BB0_6
63 ; FLAT-NEXT: ; %bb.3: ; %endif1
64 ; FLAT-NEXT: s_and_b64 exec, exec, s[0:1]
65 ; FLAT-NEXT: v_mov_b32_e32 v0, 0
66 ; FLAT-NEXT: s_and_saveexec_b64 s[0:1], s[2:3]
67 ; FLAT-NEXT: s_cbranch_execz BB0_5
68 ; FLAT-NEXT: ; %bb.4: ; %if2
69 ; FLAT-NEXT: s_mov_b32 s3, 0
70 ; FLAT-NEXT: v_add_f32_e32 v0, 1.0, v2
71 ; FLAT-NEXT: s_load_dwordx4 s[4:7], s[2:3], 0x0
72 ; FLAT-NEXT: v_cvt_i32_f32_e32 v0, v0
73 ; FLAT-NEXT: s_waitcnt lgkmcnt(0)
74 ; FLAT-NEXT: buffer_atomic_swap v0, off, s[4:7], 0 offset:4 glc
75 ; FLAT-NEXT: s_waitcnt vmcnt(0)
76 ; FLAT-NEXT: v_cvt_f32_i32_e32 v0, v0
77 ; FLAT-NEXT: BB0_5: ; %endif2
78 ; FLAT-NEXT: s_or_b64 exec, exec, s[0:1]
79 ; FLAT-NEXT: s_branch BB0_7
81 ; FLAT-NEXT: s_mov_b64 exec, 0
82 ; FLAT-NEXT: exp null off, off, off, off done vm
86 %.1 = fptosi float %a to i32
89 %.not = icmp eq i32 %.3, 0
90 br i1 %.not, label %endif1, label %if1
93 br i1 false, label %if3, label %endif1
99 %.0 = phi i1 [ false, %if3 ], [ false, %if1 ], [ true, %entry ]
100 %.4 = call i1 @llvm.amdgcn.wqm.vote(i1 %.0)
101 ; This kill must be uniformly executed
102 call void @llvm.amdgcn.kill(i1 %.4)
103 %.test0 = fadd nsz arcp float %c, 1.0
104 %.test1 = fptosi float %.test0 to i32
105 br i1 %.0, label %if2, label %endif2
108 %.5 = getelementptr inbounds <4 x i32>, <4 x i32> addrspace(6)* undef, i32 31, !amdgpu.uniform !0
109 %.6 = load <4 x i32>, <4 x i32> addrspace(6)* %.5, align 16, !invariant.load !0
110 %.7 = call i32 @llvm.amdgcn.raw.buffer.atomic.swap.i32(i32 %.test1, <4 x i32> %.6, i32 4, i32 0, i32 0)
111 %.8 = sitofp i32 %.7 to float
115 %.9 = phi float [ %.8, %if2 ], [ 0.0, %endif1 ]
120 declare i32 @llvm.amdgcn.raw.buffer.atomic.swap.i32(i32, <4 x i32>, i32, i32, i32 immarg) #2
121 declare i1 @llvm.amdgcn.wqm.vote(i1) #3
122 declare void @llvm.amdgcn.kill(i1) #4
123 declare float @llvm.amdgcn.wqm.f32(float) #1
125 attributes #1 = { nounwind readnone speculatable willreturn }
126 attributes #2 = { nounwind willreturn }
127 attributes #3 = { convergent nounwind readnone willreturn }
128 attributes #4 = { nounwind }