aboutsummaryrefslogtreecommitdiffstats
path: root/test/CodeGen/AArch64/logical_shifted_reg.ll
blob: b249d72e0f90e22becef5cd4063448c38eefd835 (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
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu | FileCheck %s

@var1_32 = global i32 0
@var2_32 = global i32 0

@var1_64 = global i64 0
@var2_64 = global i64 0

define void @logical_32bit() minsize {
; CHECK-LABEL: logical_32bit:
  %val1 = load i32* @var1_32
  %val2 = load i32* @var2_32

  ; First check basic and/bic/or/orn/eor/eon patterns with no shift
  %neg_val2 = xor i32 -1, %val2

  %and_noshift = and i32 %val1, %val2
; CHECK: and {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}
  store volatile i32 %and_noshift, i32* @var1_32
  %bic_noshift = and i32 %neg_val2, %val1
; CHECK: bic {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}
  store volatile i32 %bic_noshift, i32* @var1_32

  %or_noshift = or i32 %val1, %val2
; CHECK: orr {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}
  store volatile i32 %or_noshift, i32* @var1_32
  %orn_noshift = or i32 %neg_val2, %val1
; CHECK: orn {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}
  store volatile i32 %orn_noshift, i32* @var1_32

  %xor_noshift = xor i32 %val1, %val2
; CHECK: eor {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}
  store volatile i32 %xor_noshift, i32* @var1_32
  %xorn_noshift = xor i32 %neg_val2, %val1
; CHECK: eon {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}
  store volatile i32 %xorn_noshift, i32* @var1_32

  ; Check the maximum shift on each
  %operand_lsl31 = shl i32 %val2, 31
  %neg_operand_lsl31 = xor i32 -1, %operand_lsl31

  %and_lsl31 = and i32 %val1, %operand_lsl31
; CHECK: and {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #31
  store volatile i32 %and_lsl31, i32* @var1_32
  %bic_lsl31 = and i32 %val1, %neg_operand_lsl31
; CHECK: bic {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #31
  store volatile i32 %bic_lsl31, i32* @var1_32

  %or_lsl31 = or i32 %val1, %operand_lsl31
; CHECK: orr {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #31
  store volatile i32 %or_lsl31, i32* @var1_32
  %orn_lsl31 = or i32 %val1, %neg_operand_lsl31
; CHECK: orn {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #31
  store volatile i32 %orn_lsl31, i32* @var1_32

  %xor_lsl31 = xor i32 %val1, %operand_lsl31
; CHECK: eor {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #31
  store volatile i32 %xor_lsl31, i32* @var1_32
  %xorn_lsl31 = xor i32 %val1, %neg_operand_lsl31
; CHECK: eon {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #31
  store volatile i32 %xorn_lsl31, i32* @var1_32

  ; Check other shifts on a subset
  %operand_asr10 = ashr i32 %val2, 10
  %neg_operand_asr10 = xor i32 -1, %operand_asr10

  %bic_asr10 = and i32 %val1, %neg_operand_asr10
; CHECK: bic {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, asr #10
  store volatile i32 %bic_asr10, i32* @var1_32
  %xor_asr10 = xor i32 %val1, %operand_asr10
; CHECK: eor {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, asr #10
  store volatile i32 %xor_asr10, i32* @var1_32

  %operand_lsr1 = lshr i32 %val2, 1
  %neg_operand_lsr1 = xor i32 -1, %operand_lsr1

  %orn_lsr1 = or i32 %val1, %neg_operand_lsr1
; CHECK: orn {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsr #1
  store volatile i32 %orn_lsr1, i32* @var1_32
  %xor_lsr1 = xor i32 %val1, %operand_lsr1
; CHECK: eor {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsr #1
  store volatile i32 %xor_lsr1, i32* @var1_32

  %operand_ror20_big = shl i32 %val2, 12
  %operand_ror20_small = lshr i32 %val2, 20
  %operand_ror20 = or i32 %operand_ror20_big, %operand_ror20_small
  %neg_operand_ror20 = xor i32 -1, %operand_ror20

  %xorn_ror20 = xor i32 %val1, %neg_operand_ror20
; CHECK: eon {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, ror #20
  store volatile i32 %xorn_ror20, i32* @var1_32
  %and_ror20 = and i32 %val1, %operand_ror20
; CHECK: and {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, ror #20
  store volatile i32 %and_ror20, i32* @var1_32

  ret void
}

define void @logical_64bit() minsize {
; CHECK-LABEL: logical_64bit:
  %val1 = load i64* @var1_64
  %val2 = load i64* @var2_64

  ; First check basic and/bic/or/orn/eor/eon patterns with no shift
  %neg_val2 = xor i64 -1, %val2

  %and_noshift = and i64 %val1, %val2
; CHECK: and {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}
  store volatile i64 %and_noshift, i64* @var1_64
  %bic_noshift = and i64 %neg_val2, %val1
; CHECK: bic {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}
  store volatile i64 %bic_noshift, i64* @var1_64

  %or_noshift = or i64 %val1, %val2
; CHECK: orr {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}
  store volatile i64 %or_noshift, i64* @var1_64
  %orn_noshift = or i64 %neg_val2, %val1
; CHECK: orn {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}
  store volatile i64 %orn_noshift, i64* @var1_64

  %xor_noshift = xor i64 %val1, %val2
; CHECK: eor {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}
  store volatile i64 %xor_noshift, i64* @var1_64
  %xorn_noshift = xor i64 %neg_val2, %val1
; CHECK: eon {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}
  store volatile i64 %xorn_noshift, i64* @var1_64

  ; Check the maximum shift on each
  %operand_lsl63 = shl i64 %val2, 63
  %neg_operand_lsl63 = xor i64 -1, %operand_lsl63

  %and_lsl63 = and i64 %val1, %operand_lsl63
; CHECK: and {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #63
  store volatile i64 %and_lsl63, i64* @var1_64
  %bic_lsl63 = and i64 %val1, %neg_operand_lsl63
; CHECK: bic {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #63
  store volatile i64 %bic_lsl63, i64* @var1_64

  %or_lsl63 = or i64 %val1, %operand_lsl63
; CHECK: orr {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #63
  store volatile i64 %or_lsl63, i64* @var1_64
  %orn_lsl63 = or i64 %val1, %neg_operand_lsl63
; CHECK: orn {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #63
  store volatile i64 %orn_lsl63, i64* @var1_64

  %xor_lsl63 = xor i64 %val1, %operand_lsl63
; CHECK: eor {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #63
  store volatile i64 %xor_lsl63, i64* @var1_64
  %xorn_lsl63 = xor i64 %val1, %neg_operand_lsl63
; CHECK: eon {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #63
  store volatile i64 %xorn_lsl63, i64* @var1_64

  ; Check other shifts on a subset
  %operand_asr10 = ashr i64 %val2, 10
  %neg_operand_asr10 = xor i64 -1, %operand_asr10

  %bic_asr10 = and i64 %val1, %neg_operand_asr10
; CHECK: bic {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, asr #10
  store volatile i64 %bic_asr10, i64* @var1_64
  %xor_asr10 = xor i64 %val1, %operand_asr10
; CHECK: eor {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, asr #10
  store volatile i64 %xor_asr10, i64* @var1_64

  %operand_lsr1 = lshr i64 %val2, 1
  %neg_operand_lsr1 = xor i64 -1, %operand_lsr1

  %orn_lsr1 = or i64 %val1, %neg_operand_lsr1
; CHECK: orn {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsr #1
  store volatile i64 %orn_lsr1, i64* @var1_64
  %xor_lsr1 = xor i64 %val1, %operand_lsr1
; CHECK: eor {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsr #1
  store volatile i64 %xor_lsr1, i64* @var1_64

  ; Construct a rotate-right from a bunch of other logical
  ; operations. DAGCombiner should ensure we the ROTR during
  ; selection
  %operand_ror20_big = shl i64 %val2, 44
  %operand_ror20_small = lshr i64 %val2, 20
  %operand_ror20 = or i64 %operand_ror20_big, %operand_ror20_small
  %neg_operand_ror20 = xor i64 -1, %operand_ror20

  %xorn_ror20 = xor i64 %val1, %neg_operand_ror20
; CHECK: eon {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, ror #20
  store volatile i64 %xorn_ror20, i64* @var1_64
  %and_ror20 = and i64 %val1, %operand_ror20
; CHECK: and {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, ror #20
  store volatile i64 %and_ror20, i64* @var1_64

  ret void
}

define void @flag_setting() {
; CHECK-LABEL: flag_setting:
  %val1 = load i64* @var1_64
  %val2 = load i64* @var2_64

; CHECK: tst {{x[0-9]+}}, {{x[0-9]+}}
; CHECK: b.gt .L
  %simple_and = and i64 %val1, %val2
  %tst1 = icmp sgt i64 %simple_and, 0
  br i1 %tst1, label %ret, label %test2

test2:
; CHECK: tst {{x[0-9]+}}, {{x[0-9]+}}, lsl #63
; CHECK: b.lt .L
  %shifted_op = shl i64 %val2, 63
  %shifted_and = and i64 %val1, %shifted_op
  %tst2 = icmp slt i64 %shifted_and, 0
  br i1 %tst2, label %ret, label %test3

test3:
; CHECK: tst {{x[0-9]+}}, {{x[0-9]+}}, asr #12
; CHECK: b.gt .L
  %asr_op = ashr i64 %val2, 12
  %asr_and = and i64 %asr_op, %val1
  %tst3 = icmp sgt i64 %asr_and, 0
  br i1 %tst3, label %ret, label %other_exit

other_exit:
  store volatile i64 %val1, i64* @var1_64
  ret void
ret:
  ret void
}