aboutsummaryrefslogtreecommitdiff
path: root/llvm/test/CodeGen/AMDGPU/bfe-combine.ll
blob: 0f20ed1320dad783c82f1dc42f7e681b05ac63ad (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
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=amdgcn -mcpu=fiji -amdgpu-sdwa-peephole=0 < %s | FileCheck %s --check-prefixes=VI
; RUN: llc -mtriple=amdgcn -mcpu=fiji < %s | FileCheck %s --check-prefixes=VI-SDWA
; RUN: llc -mtriple=amdgcn -mcpu=bonaire < %s | FileCheck %s --check-prefixes=CI

define amdgpu_kernel void @bfe_combine8(ptr addrspace(1) nocapture %arg, i32 %x) {
; VI-LABEL: bfe_combine8:
; VI:       ; %bb.0:
; VI-NEXT:    s_load_dword s2, s[0:1], 0x2c
; VI-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
; VI-NEXT:    s_waitcnt lgkmcnt(0)
; VI-NEXT:    v_add_u32_e32 v0, vcc, s2, v0
; VI-NEXT:    v_bfe_u32 v0, v0, 8, 8
; VI-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
; VI-NEXT:    v_mov_b32_e32 v1, s1
; VI-NEXT:    v_add_u32_e32 v0, vcc, s0, v0
; VI-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
; VI-NEXT:    flat_load_dword v2, v[0:1]
; VI-NEXT:    v_mov_b32_e32 v0, s0
; VI-NEXT:    v_mov_b32_e32 v1, s1
; VI-NEXT:    s_waitcnt vmcnt(0)
; VI-NEXT:    flat_store_dword v[0:1], v2
; VI-NEXT:    s_endpgm
;
; VI-SDWA-LABEL: bfe_combine8:
; VI-SDWA:       ; %bb.0:
; VI-SDWA-NEXT:    s_load_dword s2, s[0:1], 0x2c
; VI-SDWA-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
; VI-SDWA-NEXT:    v_mov_b32_e32 v1, 2
; VI-SDWA-NEXT:    s_waitcnt lgkmcnt(0)
; VI-SDWA-NEXT:    v_add_u32_e32 v0, vcc, s2, v0
; VI-SDWA-NEXT:    v_lshlrev_b32_sdwa v0, v1, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:BYTE_1
; VI-SDWA-NEXT:    v_mov_b32_e32 v1, s1
; VI-SDWA-NEXT:    v_add_u32_e32 v0, vcc, s0, v0
; VI-SDWA-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
; VI-SDWA-NEXT:    flat_load_dword v2, v[0:1]
; VI-SDWA-NEXT:    v_mov_b32_e32 v0, s0
; VI-SDWA-NEXT:    v_mov_b32_e32 v1, s1
; VI-SDWA-NEXT:    s_waitcnt vmcnt(0)
; VI-SDWA-NEXT:    flat_store_dword v[0:1], v2
; VI-SDWA-NEXT:    s_endpgm
;
; CI-LABEL: bfe_combine8:
; CI:       ; %bb.0:
; CI-NEXT:    s_load_dword s2, s[0:1], 0xb
; CI-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x9
; CI-NEXT:    s_mov_b32 s3, 0xf000
; CI-NEXT:    s_mov_b32 s6, 0
; CI-NEXT:    s_mov_b32 s7, s3
; CI-NEXT:    s_waitcnt lgkmcnt(0)
; CI-NEXT:    v_add_i32_e32 v0, vcc, s2, v0
; CI-NEXT:    v_lshrrev_b32_e32 v0, 6, v0
; CI-NEXT:    s_mov_b64 s[4:5], s[0:1]
; CI-NEXT:    v_and_b32_e32 v0, 0x3fc, v0
; CI-NEXT:    v_mov_b32_e32 v1, 0
; CI-NEXT:    buffer_load_dword v0, v[0:1], s[4:7], 0 addr64
; CI-NEXT:    s_mov_b32 s2, -1
; CI-NEXT:    s_waitcnt vmcnt(0)
; CI-NEXT:    buffer_store_dword v0, off, s[0:3], 0
; CI-NEXT:    s_endpgm
  %id = tail call i32 @llvm.amdgcn.workitem.id.x() #2
  %idx = add i32 %x, %id
  %srl = lshr i32 %idx, 8
  %and = and i32 %srl, 255
  %ptr = getelementptr inbounds i32, ptr addrspace(1) %arg, i32 %and
  %val = load i32, ptr addrspace(1) %ptr, align 4
  store i32 %val, ptr addrspace(1) %arg, align 4
  ret void
}

define amdgpu_kernel void @bfe_combine16(ptr addrspace(1) nocapture %arg, i32 %x) {
; VI-LABEL: bfe_combine16:
; VI:       ; %bb.0:
; VI-NEXT:    s_load_dword s2, s[0:1], 0x2c
; VI-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
; VI-NEXT:    v_mov_b32_e32 v1, 0
; VI-NEXT:    s_waitcnt lgkmcnt(0)
; VI-NEXT:    v_add_u32_e32 v0, vcc, s2, v0
; VI-NEXT:    v_bfe_u32 v0, v0, 16, 16
; VI-NEXT:    v_lshlrev_b32_e32 v0, 15, v0
; VI-NEXT:    v_lshlrev_b64 v[0:1], 2, v[0:1]
; VI-NEXT:    v_mov_b32_e32 v2, s1
; VI-NEXT:    v_add_u32_e32 v0, vcc, s0, v0
; VI-NEXT:    v_addc_u32_e32 v1, vcc, v2, v1, vcc
; VI-NEXT:    flat_load_dword v2, v[0:1]
; VI-NEXT:    v_mov_b32_e32 v0, s0
; VI-NEXT:    v_mov_b32_e32 v1, s1
; VI-NEXT:    s_waitcnt vmcnt(0)
; VI-NEXT:    flat_store_dword v[0:1], v2
; VI-NEXT:    s_endpgm
;
; VI-SDWA-LABEL: bfe_combine16:
; VI-SDWA:       ; %bb.0:
; VI-SDWA-NEXT:    s_load_dword s2, s[0:1], 0x2c
; VI-SDWA-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
; VI-SDWA-NEXT:    v_mov_b32_e32 v1, 15
; VI-SDWA-NEXT:    s_waitcnt lgkmcnt(0)
; VI-SDWA-NEXT:    v_add_u32_e32 v0, vcc, s2, v0
; VI-SDWA-NEXT:    v_lshlrev_b32_sdwa v0, v1, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:WORD_1
; VI-SDWA-NEXT:    v_mov_b32_e32 v1, 0
; VI-SDWA-NEXT:    v_lshlrev_b64 v[0:1], 2, v[0:1]
; VI-SDWA-NEXT:    v_mov_b32_e32 v2, s1
; VI-SDWA-NEXT:    v_add_u32_e32 v0, vcc, s0, v0
; VI-SDWA-NEXT:    v_addc_u32_e32 v1, vcc, v2, v1, vcc
; VI-SDWA-NEXT:    flat_load_dword v2, v[0:1]
; VI-SDWA-NEXT:    v_mov_b32_e32 v0, s0
; VI-SDWA-NEXT:    v_mov_b32_e32 v1, s1
; VI-SDWA-NEXT:    s_waitcnt vmcnt(0)
; VI-SDWA-NEXT:    flat_store_dword v[0:1], v2
; VI-SDWA-NEXT:    s_endpgm
;
; CI-LABEL: bfe_combine16:
; CI:       ; %bb.0:
; CI-NEXT:    s_load_dword s2, s[0:1], 0xb
; CI-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x9
; CI-NEXT:    v_mov_b32_e32 v1, 0
; CI-NEXT:    s_mov_b32 s3, 0xf000
; CI-NEXT:    s_mov_b32 s6, 0
; CI-NEXT:    s_waitcnt lgkmcnt(0)
; CI-NEXT:    v_add_i32_e32 v0, vcc, s2, v0
; CI-NEXT:    v_lshrrev_b32_e32 v0, 1, v0
; CI-NEXT:    v_and_b32_e32 v0, 0x7fff8000, v0
; CI-NEXT:    v_lshl_b64 v[0:1], v[0:1], 2
; CI-NEXT:    s_mov_b32 s7, s3
; CI-NEXT:    s_mov_b64 s[4:5], s[0:1]
; CI-NEXT:    buffer_load_dword v0, v[0:1], s[4:7], 0 addr64
; CI-NEXT:    s_mov_b32 s2, -1
; CI-NEXT:    s_waitcnt vmcnt(0)
; CI-NEXT:    buffer_store_dword v0, off, s[0:3], 0
; CI-NEXT:    s_endpgm
  %id = tail call i32 @llvm.amdgcn.workitem.id.x() #2
  %idx = add i32 %x, %id
  %srl = lshr i32 %idx, 1
  %and = and i32 %srl, 2147450880
  %ptr = getelementptr inbounds i32, ptr addrspace(1) %arg, i32 %and
  %val = load i32, ptr addrspace(1) %ptr, align 4
  store i32 %val, ptr addrspace(1) %arg, align 4
  ret void
}

declare i32 @llvm.amdgcn.workitem.id.x() #1