aboutsummaryrefslogtreecommitdiff
path: root/llvm/test/CodeGen/AMDGPU/load-constant-f64.ll
blob: 001d7487b51b461e9ab816d4a38ed5f86a4d6e9e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
; RUN: llc -mtriple=amdgcn < %s | FileCheck -check-prefix=GFX6-NOHSA %s
; RUN: llc -mtriple=amdgcn-amdhsa -mcpu=kaveri < %s | FileCheck -check-prefix=GFX7-HSA %s
; RUN: llc -mtriple=amdgcn -mcpu=tonga < %s | FileCheck -check-prefix=GFX8-NOHSA %s
; RUN: llc -mtriple=amdgcn -mcpu=gfx1200 < %s | FileCheck -check-prefix=GFX12 %s

; FUNC-LABEL: {{^}}constant_load_f64:
define amdgpu_kernel void @constant_load_f64(ptr addrspace(1) %out, ptr addrspace(4) %in) #0 {
; GFX6-NOHSA-LABEL: constant_load_f64:
; GFX6-NOHSA:       ; %bb.0:
; GFX6-NOHSA-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x9
; GFX6-NOHSA-NEXT:    s_waitcnt lgkmcnt(0)
; GFX6-NOHSA-NEXT:    s_load_dwordx2 s[4:5], s[2:3], 0x0
; GFX6-NOHSA-NEXT:    s_mov_b32 s3, 0xf000
; GFX6-NOHSA-NEXT:    s_mov_b32 s2, -1
; GFX6-NOHSA-NEXT:    s_waitcnt lgkmcnt(0)
; GFX6-NOHSA-NEXT:    v_mov_b32_e32 v0, s4
; GFX6-NOHSA-NEXT:    v_mov_b32_e32 v1, s5
; GFX6-NOHSA-NEXT:    buffer_store_dwordx2 v[0:1], off, s[0:3], 0
; GFX6-NOHSA-NEXT:    s_endpgm
;
; GFX7-HSA-LABEL: constant_load_f64:
; GFX7-HSA:       ; %bb.0:
; GFX7-HSA-NEXT:    s_load_dwordx4 s[0:3], s[8:9], 0x0
; GFX7-HSA-NEXT:    s_add_i32 s12, s12, s17
; GFX7-HSA-NEXT:    s_mov_b32 flat_scratch_lo, s13
; GFX7-HSA-NEXT:    s_lshr_b32 flat_scratch_hi, s12, 8
; GFX7-HSA-NEXT:    s_waitcnt lgkmcnt(0)
; GFX7-HSA-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
; GFX7-HSA-NEXT:    v_mov_b32_e32 v0, s0
; GFX7-HSA-NEXT:    v_mov_b32_e32 v1, s1
; GFX7-HSA-NEXT:    s_waitcnt lgkmcnt(0)
; GFX7-HSA-NEXT:    v_mov_b32_e32 v2, s2
; GFX7-HSA-NEXT:    v_mov_b32_e32 v3, s3
; GFX7-HSA-NEXT:    flat_store_dwordx2 v[0:1], v[2:3]
; GFX7-HSA-NEXT:    s_endpgm
;
; GFX8-NOHSA-LABEL: constant_load_f64:
; GFX8-NOHSA:       ; %bb.0:
; GFX8-NOHSA-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x24
; GFX8-NOHSA-NEXT:    s_waitcnt lgkmcnt(0)
; GFX8-NOHSA-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
; GFX8-NOHSA-NEXT:    v_mov_b32_e32 v0, s0
; GFX8-NOHSA-NEXT:    v_mov_b32_e32 v1, s1
; GFX8-NOHSA-NEXT:    s_waitcnt lgkmcnt(0)
; GFX8-NOHSA-NEXT:    v_mov_b32_e32 v2, s2
; GFX8-NOHSA-NEXT:    v_mov_b32_e32 v3, s3
; GFX8-NOHSA-NEXT:    flat_store_dwordx2 v[0:1], v[2:3]
; GFX8-NOHSA-NEXT:    s_endpgm
;
; GFX12-LABEL: constant_load_f64:
; GFX12:       ; %bb.0:
; GFX12-NEXT:    s_load_b128 s[0:3], s[4:5], 0x24
; GFX12-NEXT:    s_wait_kmcnt 0x0
; GFX12-NEXT:    s_load_b64 s[2:3], s[2:3], 0x0
; GFX12-NEXT:    v_mov_b32_e32 v2, 0
; GFX12-NEXT:    s_wait_kmcnt 0x0
; GFX12-NEXT:    v_dual_mov_b32 v0, s2 :: v_dual_mov_b32 v1, s3
; GFX12-NEXT:    global_store_b64 v2, v[0:1], s[0:1]
; GFX12-NEXT:    s_endpgm
  %ld = load double, ptr addrspace(4) %in
  store double %ld, ptr addrspace(1) %out
  ret void
}

attributes #0 = { nounwind }

; Tests whether a load-chain of 8 constants of 64bit each gets vectorized into a wider load.
define amdgpu_kernel void @constant_load_2v4f64(ptr addrspace(4) noalias nocapture readonly %weights, ptr addrspace(1) noalias nocapture %out_ptr) {
; GFX6-NOHSA-LABEL: constant_load_2v4f64:
; GFX6-NOHSA:       ; %bb.0: ; %entry
; GFX6-NOHSA-NEXT:    s_load_dwordx4 s[16:19], s[4:5], 0x9
; GFX6-NOHSA-NEXT:    s_waitcnt lgkmcnt(0)
; GFX6-NOHSA-NEXT:    s_load_dwordx2 s[24:25], s[18:19], 0x0
; GFX6-NOHSA-NEXT:    s_load_dwordx16 s[0:15], s[16:17], 0x0
; GFX6-NOHSA-NEXT:    s_mov_b32 s23, 0xf000
; GFX6-NOHSA-NEXT:    s_mov_b32 s22, -1
; GFX6-NOHSA-NEXT:    s_mov_b32 s20, s18
; GFX6-NOHSA-NEXT:    s_mov_b32 s21, s19
; GFX6-NOHSA-NEXT:    s_waitcnt lgkmcnt(0)
; GFX6-NOHSA-NEXT:    v_mov_b32_e32 v0, s24
; GFX6-NOHSA-NEXT:    v_mov_b32_e32 v1, s25
; GFX6-NOHSA-NEXT:    v_add_f64 v[0:1], s[0:1], v[0:1]
; GFX6-NOHSA-NEXT:    v_add_f64 v[0:1], s[2:3], v[0:1]
; GFX6-NOHSA-NEXT:    v_add_f64 v[0:1], s[4:5], v[0:1]
; GFX6-NOHSA-NEXT:    v_add_f64 v[0:1], s[6:7], v[0:1]
; GFX6-NOHSA-NEXT:    v_add_f64 v[0:1], s[8:9], v[0:1]
; GFX6-NOHSA-NEXT:    v_add_f64 v[0:1], s[10:11], v[0:1]
; GFX6-NOHSA-NEXT:    v_add_f64 v[0:1], s[12:13], v[0:1]
; GFX6-NOHSA-NEXT:    v_add_f64 v[0:1], s[14:15], v[0:1]
; GFX6-NOHSA-NEXT:    buffer_store_dwordx2 v[0:1], off, s[20:23], 0
; GFX6-NOHSA-NEXT:    s_endpgm
;
; GFX7-HSA-LABEL: constant_load_2v4f64:
; GFX7-HSA:       ; %bb.0: ; %entry
; GFX7-HSA-NEXT:    s_add_i32 s12, s12, s17
; GFX7-HSA-NEXT:    s_load_dwordx4 s[16:19], s[8:9], 0x0
; GFX7-HSA-NEXT:    s_mov_b32 flat_scratch_lo, s13
; GFX7-HSA-NEXT:    s_lshr_b32 flat_scratch_hi, s12, 8
; GFX7-HSA-NEXT:    s_waitcnt lgkmcnt(0)
; GFX7-HSA-NEXT:    s_load_dwordx2 s[20:21], s[18:19], 0x0
; GFX7-HSA-NEXT:    s_load_dwordx16 s[0:15], s[16:17], 0x0
; GFX7-HSA-NEXT:    v_mov_b32_e32 v2, s18
; GFX7-HSA-NEXT:    v_mov_b32_e32 v3, s19
; GFX7-HSA-NEXT:    s_waitcnt lgkmcnt(0)
; GFX7-HSA-NEXT:    v_mov_b32_e32 v0, s20
; GFX7-HSA-NEXT:    v_mov_b32_e32 v1, s21
; GFX7-HSA-NEXT:    v_add_f64 v[0:1], s[0:1], v[0:1]
; GFX7-HSA-NEXT:    v_add_f64 v[0:1], s[2:3], v[0:1]
; GFX7-HSA-NEXT:    v_add_f64 v[0:1], s[4:5], v[0:1]
; GFX7-HSA-NEXT:    v_add_f64 v[0:1], s[6:7], v[0:1]
; GFX7-HSA-NEXT:    v_add_f64 v[0:1], s[8:9], v[0:1]
; GFX7-HSA-NEXT:    v_add_f64 v[0:1], s[10:11], v[0:1]
; GFX7-HSA-NEXT:    v_add_f64 v[0:1], s[12:13], v[0:1]
; GFX7-HSA-NEXT:    v_add_f64 v[0:1], s[14:15], v[0:1]
; GFX7-HSA-NEXT:    flat_store_dwordx2 v[2:3], v[0:1]
; GFX7-HSA-NEXT:    s_endpgm
;
; GFX8-NOHSA-LABEL: constant_load_2v4f64:
; GFX8-NOHSA:       ; %bb.0: ; %entry
; GFX8-NOHSA-NEXT:    s_load_dwordx4 s[16:19], s[4:5], 0x24
; GFX8-NOHSA-NEXT:    s_waitcnt lgkmcnt(0)
; GFX8-NOHSA-NEXT:    s_load_dwordx2 s[20:21], s[18:19], 0x0
; GFX8-NOHSA-NEXT:    s_load_dwordx16 s[0:15], s[16:17], 0x0
; GFX8-NOHSA-NEXT:    v_mov_b32_e32 v2, s18
; GFX8-NOHSA-NEXT:    v_mov_b32_e32 v3, s19
; GFX8-NOHSA-NEXT:    s_waitcnt lgkmcnt(0)
; GFX8-NOHSA-NEXT:    v_mov_b32_e32 v0, s20
; GFX8-NOHSA-NEXT:    v_mov_b32_e32 v1, s21
; GFX8-NOHSA-NEXT:    v_add_f64 v[0:1], s[0:1], v[0:1]
; GFX8-NOHSA-NEXT:    v_add_f64 v[0:1], s[2:3], v[0:1]
; GFX8-NOHSA-NEXT:    v_add_f64 v[0:1], s[4:5], v[0:1]
; GFX8-NOHSA-NEXT:    v_add_f64 v[0:1], s[6:7], v[0:1]
; GFX8-NOHSA-NEXT:    v_add_f64 v[0:1], s[8:9], v[0:1]
; GFX8-NOHSA-NEXT:    v_add_f64 v[0:1], s[10:11], v[0:1]
; GFX8-NOHSA-NEXT:    v_add_f64 v[0:1], s[12:13], v[0:1]
; GFX8-NOHSA-NEXT:    v_add_f64 v[0:1], s[14:15], v[0:1]
; GFX8-NOHSA-NEXT:    flat_store_dwordx2 v[2:3], v[0:1]
; GFX8-NOHSA-NEXT:    s_endpgm
;
; GFX12-LABEL: constant_load_2v4f64:
; GFX12:       ; %bb.0: ; %entry
; GFX12-NEXT:    s_load_b128 s[16:19], s[4:5], 0x24
; GFX12-NEXT:    v_mov_b32_e32 v2, 0
; GFX12-NEXT:    s_wait_kmcnt 0x0
; GFX12-NEXT:    s_load_b64 s[20:21], s[18:19], 0x0
; GFX12-NEXT:    s_load_b512 s[0:15], s[16:17], 0x0
; GFX12-NEXT:    s_wait_kmcnt 0x0
; GFX12-NEXT:    v_add_f64_e64 v[0:1], s[0:1], s[20:21]
; GFX12-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
; GFX12-NEXT:    v_add_f64_e32 v[0:1], s[2:3], v[0:1]
; GFX12-NEXT:    v_add_f64_e32 v[0:1], s[4:5], v[0:1]
; GFX12-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
; GFX12-NEXT:    v_add_f64_e32 v[0:1], s[6:7], v[0:1]
; GFX12-NEXT:    v_add_f64_e32 v[0:1], s[8:9], v[0:1]
; GFX12-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
; GFX12-NEXT:    v_add_f64_e32 v[0:1], s[10:11], v[0:1]
; GFX12-NEXT:    v_add_f64_e32 v[0:1], s[12:13], v[0:1]
; GFX12-NEXT:    s_delay_alu instid0(VALU_DEP_1)
; GFX12-NEXT:    v_add_f64_e32 v[0:1], s[14:15], v[0:1]
; GFX12-NEXT:    global_store_b64 v2, v[0:1], s[18:19]
; GFX12-NEXT:    s_endpgm
entry:
  %out_ptr.promoted = load double, ptr addrspace(1) %out_ptr, align 4
  %tmp = load double, ptr addrspace(4) %weights, align 4
  %add = fadd double %tmp, %out_ptr.promoted
  %arrayidx.1 = getelementptr inbounds double, ptr addrspace(4) %weights, i64 1
  %tmp1 = load double, ptr addrspace(4) %arrayidx.1, align 4
  %add.1 = fadd double %tmp1, %add
  %arrayidx.2 = getelementptr inbounds double, ptr addrspace(4) %weights, i64 2
  %tmp2 = load double, ptr addrspace(4) %arrayidx.2, align 4
  %add.2 = fadd double %tmp2, %add.1
  %arrayidx.3 = getelementptr inbounds double, ptr addrspace(4) %weights, i64 3
  %tmp3 = load double, ptr addrspace(4) %arrayidx.3, align 4
  %add.3 = fadd double %tmp3, %add.2
  %arrayidx.4 = getelementptr inbounds double, ptr addrspace(4) %weights, i64 4
  %tmp4 = load double, ptr addrspace(4) %arrayidx.4, align 4
  %add.4 = fadd double %tmp4, %add.3
  %arrayidx.5 = getelementptr inbounds double, ptr addrspace(4) %weights, i64 5
  %tmp5 = load double, ptr addrspace(4) %arrayidx.5, align 4
  %add.5 = fadd double %tmp5, %add.4
  %arrayidx.6 = getelementptr inbounds double, ptr addrspace(4) %weights, i64 6
  %tmp6 = load double, ptr addrspace(4) %arrayidx.6, align 4
  %add.6 = fadd double %tmp6, %add.5
  %arrayidx.7 = getelementptr inbounds double, ptr addrspace(4) %weights, i64 7
  %tmp7 = load double, ptr addrspace(4) %arrayidx.7, align 4
  %add.7 = fadd double %tmp7, %add.6
  store double %add.7, ptr addrspace(1) %out_ptr, align 4
  ret void
}