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
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
|
; RUN: llc < %s -mtriple=armv7-apple-darwin -mcpu=cortex-a8 | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-ARM
; RUN: llc < %s -mtriple=armv7-apple-darwin -mcpu=cortex-a9 | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-ARM
; RUN: llc < %s -mtriple=thumbv7m-none-eabi | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-THUMB
; rdar://8576755
define i32 @test1(i32 %X, i32 %Y, i8 %sh) {
; CHECK-LABEL: test1:
; CHECK-ARM: add r0, r0, r1, lsl r2
; CHECK-THUMB: lsls r1, r2
; CHECK-THUMB: add r0, r1
%shift.upgrd.1 = zext i8 %sh to i32
%A = shl i32 %Y, %shift.upgrd.1
%B = add i32 %X, %A
ret i32 %B
}
define i32 @test2(i32 %X, i32 %Y, i8 %sh) {
; CHECK-LABEL: test2:
; CHECK-ARM: bic r0, r0, r1, asr r2
; CHECK-THUMB: asrs r1, r2
; CHECK-THUMB: bics r0, r1
%shift.upgrd.2 = zext i8 %sh to i32
%A = ashr i32 %Y, %shift.upgrd.2
%B = xor i32 %A, -1
%C = and i32 %X, %B
ret i32 %C
}
define i32 @test3(i32 %base, i32 %base2, i32 %offset) {
entry:
; CHECK-LABEL: test3:
; CHECK: ldr{{(.w)?}} r0, [r0, r2, lsl #2]
; CHECK: ldr{{(.w)?}} r1, [r1, r2, lsl #2]
%tmp1 = shl i32 %offset, 2
%tmp2 = add i32 %base, %tmp1
%tmp3 = inttoptr i32 %tmp2 to i32*
%tmp4 = add i32 %base2, %tmp1
%tmp5 = inttoptr i32 %tmp4 to i32*
%tmp6 = load i32, i32* %tmp3
%tmp7 = load i32, i32* %tmp5
%tmp8 = add i32 %tmp7, %tmp6
ret i32 %tmp8
}
declare i8* @malloc(...)
define fastcc void @test4(i16 %addr) nounwind {
entry:
; CHECK-LABEL: test4:
; CHECK: ldr{{(.w)?}} [[REG:r[0-9]+]], [r0, r1, lsl #2]
; CHECK-NOT: ldr{{(.w)?}} [[REG:r[0-9]+]], [r0, r1, lsl #2]!
; CHECK: str{{(.w)?}} [[REG]], [r0, r1, lsl #2]
; CHECK-NOT: str{{(.w)?}} [[REG]], [r0]
%0 = tail call i8* (...) @malloc(i32 undef) nounwind
%1 = bitcast i8* %0 to i32*
%2 = sext i16 %addr to i32
%3 = getelementptr inbounds i32, i32* %1, i32 %2
%4 = load i32, i32* %3, align 4
%5 = add nsw i32 %4, 1
store i32 %5, i32* %3, align 4
ret void
}
define i32 @test_orr_extract_from_mul_1(i32 %x, i32 %y) {
entry:
; CHECK-LABEL: test_orr_extract_from_mul_1
; CHECK: movw r2, #63767
; CHECK-ARM: mul r1, r1, r2
; CHECK-ARM: orr r0, r1, r0
; CHECK-THUMB: muls r1, r2, r1
; CHECk-THUMB: orrs r0, r1
%mul = mul i32 %y, 63767
%or = or i32 %mul, %x
ret i32 %or
}
define i32 @test_orr_extract_from_mul_2(i32 %x, i32 %y) {
; CHECK-LABEL: test_orr_extract_from_mul_2
; CHECK: movw r2, #63767
; CHECK-ARM: mul r1, r1, r2
; CHECK-THUMB: muls r1, r2, r1
; CHECK: orr{{(.w)?}} r0, r0, r1, lsl #1
entry:
%mul1 = mul i32 %y, 127534
%or = or i32 %mul1, %x
ret i32 %or
}
define i32 @test_orr_extract_from_mul_3(i32 %x, i32 %y) {
; CHECK-LABEL: test_orr_extract_from_mul_3
; CHECK: movw r2, #63767
; CHECK-ARM: mul r1, r1, r2
; CHECK-THUMB: muls r1, r2, r1
; CHECK: orr{{(.w)?}} r0, r0, r1, lsl #2
entry:
%mul1 = mul i32 %y, 255068
%or = or i32 %mul1, %x
ret i32 %or
}
define i32 @test_orr_extract_from_mul_4(i32 %x, i32 %y) {
; CHECK-LABEL: test_orr_extract_from_mul_4
; CHECK: movw r2, #63767
; CHECK-ARM: mul r1, r1, r2
; CHECK-THUMB: muls r1, r2, r1
; CHECK: orr{{(.w)?}} r0, r0, r1, lsl #3
entry:
%mul1 = mul i32 %y, 510136
%or = or i32 %mul1, %x
ret i32 %or
}
define i32 @test_orr_extract_from_mul_5(i32 %x, i32 %y) {
; CHECK-LABEL: test_orr_extract_from_mul_5
; CHECK: movw r2, #63767
; CHECK-ARM: mul r1, r1, r2
; CHECK-THUMB: muls r1, r2, r1
; CHECK: orr{{(.w)?}} r0, r0, r1, lsl #4
entry:
%mul1 = mul i32 %y, 1020272
%or = or i32 %mul1, %x
ret i32 %or
}
define i32 @test_orr_extract_from_mul_6(i32 %x, i32 %y) {
; CHECK-LABEL: test_orr_extract_from_mul_6
; CHECK: movw r2, #63767
; CHECK-ARM: mul r1, r1, r2
; CHECK-THUMB: muls r1, r2, r1
; CHECK: orr{{(.w)?}} r0, r0, r1, lsl #16
entry:
%mul = mul i32 %y, -115933184
%or = or i32 %mul, %x
ret i32 %or
}
define i32 @test_load_extract_from_mul_1(i8* %x, i32 %y) {
; CHECK-LABEL: test_load_extract_from_mul_1
; CHECK: movw r2, #63767
; CHECK-ARM: mul r1, r1, r2
; CHECK-THUMB: muls r1, r2, r1
; CHECK: ldrb r0, [r0, r1]
entry:
%mul = mul i32 %y, 63767
%arrayidx = getelementptr inbounds i8, i8* %x, i32 %mul
%0 = load i8, i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
ret i32 %conv
}
define i32 @test_load_extract_from_mul_2(i8* %x, i32 %y) {
; CHECK-LABEL: test_load_extract_from_mul_2
; CHECK: movw r2, #63767
; CHECK-ARM: mul r1, r1, r2
; CHECK-THUMB: muls r1, r2, r1
; CHECK: ldrb{{(.w)?}} r0, [r0, r1, lsl #1]
entry:
%mul1 = mul i32 %y, 127534
%arrayidx = getelementptr inbounds i8, i8* %x, i32 %mul1
%0 = load i8, i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
ret i32 %conv
}
define i32 @test_load_extract_from_mul_3(i8* %x, i32 %y) {
; CHECK-LABEL: test_load_extract_from_mul_3
; CHECK: movw r2, #63767
; CHECK-ARM: mul r1, r1, r2
; CHECK-THUMB: muls r1, r2, r1
; CHECK: ldrb{{(.w)?}} r0, [r0, r1, lsl #2]
entry:
%mul1 = mul i32 %y, 255068
%arrayidx = getelementptr inbounds i8, i8* %x, i32 %mul1
%0 = load i8, i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
ret i32 %conv
}
define i32 @test_load_extract_from_mul_4(i8* %x, i32 %y) {
; CHECK-LABEL: test_load_extract_from_mul_4
; CHECK: movw r2, #63767
; CHECK-ARM: mul r1, r1, r2
; CHECK-THUMB: muls r1, r2, r1
; CHECK: ldrb{{(.w)?}} r0, [r0, r1, lsl #3]
entry:
%mul1 = mul i32 %y, 510136
%arrayidx = getelementptr inbounds i8, i8* %x, i32 %mul1
%0 = load i8, i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
ret i32 %conv
}
define i32 @test_load_extract_from_mul_5(i8* %x, i32 %y) {
; CHECK-LABEL: test_load_extract_from_mul_5
; CHECK-ARM: movw r2, #63767
; CHECK-ARM: mul r1, r1, r2
; CHECK-ARM: ldrb r0, [r0, r1, lsl #4]
; CHECK-THUMB: movw r2, #37232
; CHECK-THUMB: movt r2, #15
; CHECK-THUMB: muls r1, r2, r1
; CHECK-THUMB: ldrb r0, [r0, r1]
entry:
%mul1 = mul i32 %y, 1020272
%arrayidx = getelementptr inbounds i8, i8* %x, i32 %mul1
%0 = load i8, i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
ret i32 %conv
}
define i32 @test_load_extract_from_mul_6(i8* %x, i32 %y) {
; CHECK-LABEL: test_load_extract_from_mul_6
; CHECK-ARM: movw r2, #63767
; CHECK-ARM: mul r1, r1, r2
; CHECK-ARM: ldrb r0, [r0, r1, lsl #16]
; CHECK-THUMB: movs r2, #0
; CHECK-THUMB: movt r2, #63767
; CHECK-THUMB: muls r1, r2, r1
; CHECK-THUMB: ldrb r0, [r0, r1]
entry:
%mul = mul i32 %y, -115933184
%arrayidx = getelementptr inbounds i8, i8* %x, i32 %mul
%0 = load i8, i8* %arrayidx, align 1
%conv = zext i8 %0 to i32
ret i32 %conv
}
define void @test_well_formed_dag(i32 %in1, i32 %in2, i32* %addr) {
; CHECK-LABEL: test_well_formed_dag:
; CHECK-ARM: movw [[SMALL_CONST:r[0-9]+]], #675
; CHECK-ARM: mul [[SMALL_PROD:r[0-9]+]], r0, [[SMALL_CONST]]
; CHECK-ARM: add {{r[0-9]+}}, r1, [[SMALL_PROD]], lsl #7
%mul.small = mul i32 %in1, 675
store i32 %mul.small, i32* %addr
%mul.big = mul i32 %in1, 86400
%add = add i32 %in2, %mul.big
store i32 %add, i32* %addr
ret void
}
define { i32, i32 } @test_multi_use_add(i32 %base, i32 %offset) {
; CHECK-LABEL: test_multi_use_add:
; CHECK-THUMB: movs [[CONST:r[0-9]+]], #28
; CHECK-THUMB: movt [[CONST]], #1
%prod = mul i32 %offset, 65564
%sum = add i32 %base, %prod
%ptr = inttoptr i32 %sum to i32*
%loaded = load i32, i32* %ptr
%ret.tmp = insertvalue { i32, i32 } undef, i32 %sum, 0
%ret = insertvalue { i32, i32 } %ret.tmp, i32 %loaded, 1
ret { i32, i32 } %ret
}
|
