1 ; RUN: llc -verify-machineinstrs %s -o - -mtriple=arm64-apple-ios7.0 | FileCheck %s
2 ; RUN: llc -verify-machineinstrs %s -o - -mtriple=arm64-apple-ios7.0 -global-isel -pass-remarks-missed=gisel* 2>&1 | FileCheck %s --check-prefixes=GISEL,FALLBACK
9 define void @test_lsl_arith(i32 %lhs32, i32 %rhs32, i64 %lhs64, i64 %rhs64) {
10 ; CHECK-LABEL: test_lsl_arith:
11 ; GISEL-LABEL: test_lsl_arith:
13 %rhs1 = load volatile i32, i32* @var32
14 %shift1 = shl i32 %rhs1, 18
15 %val1 = add i32 %lhs32, %shift1
16 store volatile i32 %val1, i32* @var32
17 ; CHECK: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #18
18 ; GISEL: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #18
20 %rhs2 = load volatile i32, i32* @var32
21 %shift2 = shl i32 %rhs2, 31
22 %val2 = add i32 %shift2, %lhs32
23 store volatile i32 %val2, i32* @var32
24 ; CHECK: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #31
25 ; GISEL: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #31
27 %rhs3 = load volatile i32, i32* @var32
28 %shift3 = shl i32 %rhs3, 5
29 %val3 = sub i32 %lhs32, %shift3
30 store volatile i32 %val3, i32* @var32
31 ; CHECK: sub {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #5
32 ; GISEL: subs {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #5
34 ; Subtraction is not commutative!
35 %rhs4 = load volatile i32, i32* @var32
36 %shift4 = shl i32 %rhs4, 19
37 %val4 = sub i32 %shift4, %lhs32
38 store volatile i32 %val4, i32* @var32
39 ; CHECK-NOT: sub {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #19
40 ; GISEL-NOT: sub{{[s]?}} {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsl #19
42 %lhs4a = load volatile i32, i32* @var32
43 %shift4a = shl i32 %lhs4a, 15
44 %val4a = sub i32 0, %shift4a
45 store volatile i32 %val4a, i32* @var32
46 ; CHECK: neg {{w[0-9]+}}, {{w[0-9]+}}, lsl #15
47 ; GISEL: negs {{w[0-9]+}}, {{w[0-9]+}}, lsl #15
49 %rhs5 = load volatile i64, i64* @var64
50 %shift5 = shl i64 %rhs5, 18
51 %val5 = add i64 %lhs64, %shift5
52 store volatile i64 %val5, i64* @var64
53 ; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #18
54 ; GISEL: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #18
56 %rhs6 = load volatile i64, i64* @var64
57 %shift6 = shl i64 %rhs6, 31
58 %val6 = add i64 %shift6, %lhs64
59 store volatile i64 %val6, i64* @var64
60 ; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #31
61 ; GISEL: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #31
63 %rhs7 = load volatile i64, i64* @var64
64 %shift7 = shl i64 %rhs7, 5
65 %val7 = sub i64 %lhs64, %shift7
66 store volatile i64 %val7, i64* @var64
67 ; CHECK: sub {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #5
68 ; GISEL: subs {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #5
70 ; Subtraction is not commutative!
71 %rhs8 = load volatile i64, i64* @var64
72 %shift8 = shl i64 %rhs8, 19
73 %val8 = sub i64 %shift8, %lhs64
74 store volatile i64 %val8, i64* @var64
75 ; CHECK-NOT: sub {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #19
76 ; GISEL-NOT: sub{{[s]?}} {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsl #19
78 %lhs8a = load volatile i64, i64* @var64
79 %shift8a = shl i64 %lhs8a, 60
80 %val8a = sub i64 0, %shift8a
81 store volatile i64 %val8a, i64* @var64
82 ; CHECK: neg {{x[0-9]+}}, {{x[0-9]+}}, lsl #60
83 ; GISEL: negs {{x[0-9]+}}, {{x[0-9]+}}, lsl #60
89 define void @test_lsr_arith(i32 %lhs32, i32 %rhs32, i64 %lhs64, i64 %rhs64) {
90 ; CHECK-LABEL: test_lsr_arith:
92 %shift1 = lshr i32 %rhs32, 18
93 %val1 = add i32 %lhs32, %shift1
94 store volatile i32 %val1, i32* @var32
95 ; CHECK: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsr #18
96 ; GISEL: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsr #18
98 %shift2 = lshr i32 %rhs32, 31
99 %val2 = add i32 %shift2, %lhs32
100 store volatile i32 %val2, i32* @var32
101 ; CHECK: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsr #31
102 ; GISEL: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsr #31
104 %shift3 = lshr i32 %rhs32, 5
105 %val3 = sub i32 %lhs32, %shift3
106 store volatile i32 %val3, i32* @var32
107 ; CHECK: sub {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsr #5
108 ; GISEL: subs {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsr #5
110 ; Subtraction is not commutative!
111 %shift4 = lshr i32 %rhs32, 19
112 %val4 = sub i32 %shift4, %lhs32
113 store volatile i32 %val4, i32* @var32
114 ; CHECK-NOT: sub {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsr #19
115 ; GISEL-NOT: sub{{[s]?}} {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, lsr #19
117 %shift4a = lshr i32 %lhs32, 15
118 %val4a = sub i32 0, %shift4a
119 store volatile i32 %val4a, i32* @var32
120 ; CHECK: neg {{w[0-9]+}}, {{w[0-9]+}}, lsr #15
121 ; GISEL: negs {{w[0-9]+}}, {{w[0-9]+}}, lsr #15
123 %shift5 = lshr i64 %rhs64, 18
124 %val5 = add i64 %lhs64, %shift5
125 store volatile i64 %val5, i64* @var64
126 ; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsr #18
127 ; GISEL: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsr #18
129 %shift6 = lshr i64 %rhs64, 31
130 %val6 = add i64 %shift6, %lhs64
131 store volatile i64 %val6, i64* @var64
132 ; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsr #31
133 ; GISEL: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsr #31
135 %shift7 = lshr i64 %rhs64, 5
136 %val7 = sub i64 %lhs64, %shift7
137 store volatile i64 %val7, i64* @var64
138 ; CHECK: sub {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsr #5
139 ; GISEL: subs {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsr #5
141 ; Subtraction is not commutative!
142 %shift8 = lshr i64 %rhs64, 19
143 %val8 = sub i64 %shift8, %lhs64
144 store volatile i64 %val8, i64* @var64
145 ; CHECK-NOT: sub {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsr #19
146 ; GISEL-NOT: sub{{[s]?}} {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, lsr #19
148 %shift8a = lshr i64 %lhs64, 45
149 %val8a = sub i64 0, %shift8a
150 store volatile i64 %val8a, i64* @var64
151 ; CHECK: neg {{x[0-9]+}}, {{x[0-9]+}}, lsr #45
152 ; GISEL: negs {{x[0-9]+}}, {{x[0-9]+}}, lsr #45
159 define void @test_asr_arith(i32 %lhs32, i32 %rhs32, i64 %lhs64, i64 %rhs64) {
160 ; CHECK-LABEL: test_asr_arith:
162 %shift1 = ashr i32 %rhs32, 18
163 %val1 = add i32 %lhs32, %shift1
164 store volatile i32 %val1, i32* @var32
165 ; CHECK: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, asr #18
166 ; GISEL: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, asr #18
168 %shift2 = ashr i32 %rhs32, 31
169 %val2 = add i32 %shift2, %lhs32
170 store volatile i32 %val2, i32* @var32
171 ; CHECK: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, asr #31
172 ; GISEL: add {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, asr #31
174 %shift3 = ashr i32 %rhs32, 5
175 %val3 = sub i32 %lhs32, %shift3
176 store volatile i32 %val3, i32* @var32
177 ; CHECK: sub {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, asr #5
178 ; GISEL: subs {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, asr #5
180 ; Subtraction is not commutative!
181 %shift4 = ashr i32 %rhs32, 19
182 %val4 = sub i32 %shift4, %lhs32
183 store volatile i32 %val4, i32* @var32
184 ; CHECK-NOT: sub {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, asr #19
185 ; GISEL-NOT: sub{{[s]?}} {{w[0-9]+}}, {{w[0-9]+}}, {{w[0-9]+}}, asr #19
187 %shift4a = ashr i32 %lhs32, 15
188 %val4a = sub i32 0, %shift4a
189 store volatile i32 %val4a, i32* @var32
190 ; CHECK: neg {{w[0-9]+}}, {{w[0-9]+}}, asr #15
191 ; GISEL: negs {{w[0-9]+}}, {{w[0-9]+}}, asr #15
193 %shift5 = ashr i64 %rhs64, 18
194 %val5 = add i64 %lhs64, %shift5
195 store volatile i64 %val5, i64* @var64
196 ; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, asr #18
197 ; GISEL: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, asr #18
199 %shift6 = ashr i64 %rhs64, 31
200 %val6 = add i64 %shift6, %lhs64
201 store volatile i64 %val6, i64* @var64
202 ; CHECK: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, asr #31
203 ; GISEL: add {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, asr #31
205 %shift7 = ashr i64 %rhs64, 5
206 %val7 = sub i64 %lhs64, %shift7
207 store volatile i64 %val7, i64* @var64
208 ; CHECK: sub {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, asr #5
209 ; GISEL: subs {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, asr #5
211 ; Subtraction is not commutative!
212 %shift8 = ashr i64 %rhs64, 19
213 %val8 = sub i64 %shift8, %lhs64
214 store volatile i64 %val8, i64* @var64
215 ; CHECK-NOT: sub {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, asr #19
216 ; GISEL-NOT: sub{{[s]?}} {{x[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, asr #19
218 %shift8a = ashr i64 %lhs64, 45
219 %val8a = sub i64 0, %shift8a
220 store volatile i64 %val8a, i64* @var64
221 ; CHECK: neg {{x[0-9]+}}, {{x[0-9]+}}, asr #45
222 ; GISEL: negs {{x[0-9]+}}, {{x[0-9]+}}, asr #45
228 define void @test_cmp(i32 %lhs32, i32 %rhs32, i64 %lhs64, i64 %rhs64, i32 %v) {
229 ; CHECK-LABEL: test_cmp:
231 %shift1 = shl i32 %rhs32, 13
232 %tst1 = icmp uge i32 %lhs32, %shift1
233 br i1 %tst1, label %t2, label %end
234 ; CHECK: cmp {{w[0-9]+}}, {{w[0-9]+}}, lsl #13
237 store volatile i32 %v, i32* @var32
238 %shift2 = lshr i32 %rhs32, 20
239 %tst2 = icmp ne i32 %lhs32, %shift2
240 br i1 %tst2, label %t3, label %end
241 ; CHECK: cmp {{w[0-9]+}}, {{w[0-9]+}}, lsr #20
244 store volatile i32 %v, i32* @var32
245 %shift3 = ashr i32 %rhs32, 9
246 %tst3 = icmp ne i32 %lhs32, %shift3
247 br i1 %tst3, label %t4, label %end
248 ; CHECK: cmp {{w[0-9]+}}, {{w[0-9]+}}, asr #9
251 store volatile i32 %v, i32* @var32
252 %shift4 = shl i64 %rhs64, 43
253 %tst4 = icmp uge i64 %lhs64, %shift4
254 br i1 %tst4, label %t5, label %end
255 ; CHECK: cmp {{x[0-9]+}}, {{x[0-9]+}}, lsl #43
258 store volatile i32 %v, i32* @var32
259 %shift5 = lshr i64 %rhs64, 20
260 %tst5 = icmp ne i64 %lhs64, %shift5
261 br i1 %tst5, label %t6, label %end
262 ; CHECK: cmp {{x[0-9]+}}, {{x[0-9]+}}, lsr #20
265 store volatile i32 %v, i32* @var32
266 %shift6 = ashr i64 %rhs64, 59
267 %tst6 = icmp ne i64 %lhs64, %shift6
268 br i1 %tst6, label %t7, label %end
269 ; CHECK: cmp {{x[0-9]+}}, {{x[0-9]+}}, asr #59
272 store volatile i32 %v, i32* @var32
280 define i32 @test_cmn(i32 %lhs32, i32 %rhs32, i64 %lhs64, i64 %rhs64) {
281 ; CHECK-LABEL: test_cmn:
283 %shift1 = shl i32 %rhs32, 13
284 %val1 = sub i32 0, %shift1
285 %tst1 = icmp uge i32 %lhs32, %val1
286 br i1 %tst1, label %t2, label %end
287 ; Important that this isn't lowered to a cmn instruction because if %rhs32 ==
288 ; 0 then the results will differ.
289 ; CHECK: neg [[RHS:w[0-9]+]], {{w[0-9]+}}, lsl #13
290 ; CHECK: cmp {{w[0-9]+}}, [[RHS]]
291 ; GISEL: negs [[RHS:w[0-9]+]], {{w[0-9]+}}, lsl #13
292 ; GISEL: cmp {{w[0-9]+}}, [[RHS]]
295 %shift2 = lshr i32 %rhs32, 20
296 %val2 = sub i32 0, %shift2
297 %tst2 = icmp ne i32 %lhs32, %val2
298 br i1 %tst2, label %t3, label %end
299 ; CHECK: cmn {{w[0-9]+}}, {{w[0-9]+}}, lsr #20
302 %shift3 = ashr i32 %rhs32, 9
303 %val3 = sub i32 0, %shift3
304 %tst3 = icmp eq i32 %lhs32, %val3
305 br i1 %tst3, label %t4, label %end
306 ; CHECK: cmn {{w[0-9]+}}, {{w[0-9]+}}, asr #9
309 %shift4 = shl i64 %rhs64, 43
310 %val4 = sub i64 0, %shift4
311 %tst4 = icmp slt i64 %lhs64, %val4
312 br i1 %tst4, label %t5, label %end
313 ; Again, it's important that cmn isn't used here in case %rhs64 == 0.
314 ; CHECK: neg [[RHS:x[0-9]+]], {{x[0-9]+}}, lsl #43
315 ; CHECK: cmp {{x[0-9]+}}, [[RHS]]
316 ; GISEL: negs [[RHS:x[0-9]+]], {{x[0-9]+}}, lsl #43
317 ; GISEL: cmp {{x[0-9]+}}, [[RHS]]
320 %shift5 = lshr i64 %rhs64, 20
321 %val5 = sub i64 0, %shift5
322 %tst5 = icmp ne i64 %lhs64, %val5
323 br i1 %tst5, label %t6, label %end
324 ; CHECK: cmn {{x[0-9]+}}, {{x[0-9]+}}, lsr #20
327 %shift6 = ashr i64 %rhs64, 59
328 %val6 = sub i64 0, %shift6
329 %tst6 = icmp ne i64 %lhs64, %val6
330 br i1 %tst6, label %t7, label %end
331 ; CHECK: cmn {{x[0-9]+}}, {{x[0-9]+}}, asr #59