1
; RUN: opt -S -slp-vectorizer -slp-threshold=-10000 < %s | FileCheck %s
2
; RUN: opt -S -slp-vectorizer -slp-threshold=0 < %s | FileCheck %s -check-prefix=ZEROTHRESH
3
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-n8:16:32:64-S128"
5
target triple = "x86_64-apple-macosx10.8.0"
7
define <4 x float> @simple_select(<4 x float> %a, <4 x float> %b, <4 x i32> %c) #0 {
8
; CHECK-LABEL: @simple_select(
9
; CHECK-NEXT: %1 = icmp ne <4 x i32> %c, zeroinitializer
10
; CHECK-NEXT: select <4 x i1> %1, <4 x float> %a, <4 x float> %b
11
%c0 = extractelement <4 x i32> %c, i32 0
12
%c1 = extractelement <4 x i32> %c, i32 1
13
%c2 = extractelement <4 x i32> %c, i32 2
14
%c3 = extractelement <4 x i32> %c, i32 3
15
%a0 = extractelement <4 x float> %a, i32 0
16
%a1 = extractelement <4 x float> %a, i32 1
17
%a2 = extractelement <4 x float> %a, i32 2
18
%a3 = extractelement <4 x float> %a, i32 3
19
%b0 = extractelement <4 x float> %b, i32 0
20
%b1 = extractelement <4 x float> %b, i32 1
21
%b2 = extractelement <4 x float> %b, i32 2
22
%b3 = extractelement <4 x float> %b, i32 3
23
%cmp0 = icmp ne i32 %c0, 0
24
%cmp1 = icmp ne i32 %c1, 0
25
%cmp2 = icmp ne i32 %c2, 0
26
%cmp3 = icmp ne i32 %c3, 0
27
%s0 = select i1 %cmp0, float %a0, float %b0
28
%s1 = select i1 %cmp1, float %a1, float %b1
29
%s2 = select i1 %cmp2, float %a2, float %b2
30
%s3 = select i1 %cmp3, float %a3, float %b3
31
%ra = insertelement <4 x float> undef, float %s0, i32 0
32
%rb = insertelement <4 x float> %ra, float %s1, i32 1
33
%rc = insertelement <4 x float> %rb, float %s2, i32 2
34
%rd = insertelement <4 x float> %rc, float %s3, i32 3
38
declare void @llvm.assume(i1) nounwind
40
; This entire tree is ephemeral, don't vectorize any of it.
41
define <4 x float> @simple_select_eph(<4 x float> %a, <4 x float> %b, <4 x i32> %c) #0 {
42
; CHECK-LABEL: @simple_select_eph(
43
; CHECK-NOT: icmp ne <4 x i32>
44
; CHECK-NOT: select <4 x i1>
45
%c0 = extractelement <4 x i32> %c, i32 0
46
%c1 = extractelement <4 x i32> %c, i32 1
47
%c2 = extractelement <4 x i32> %c, i32 2
48
%c3 = extractelement <4 x i32> %c, i32 3
49
%a0 = extractelement <4 x float> %a, i32 0
50
%a1 = extractelement <4 x float> %a, i32 1
51
%a2 = extractelement <4 x float> %a, i32 2
52
%a3 = extractelement <4 x float> %a, i32 3
53
%b0 = extractelement <4 x float> %b, i32 0
54
%b1 = extractelement <4 x float> %b, i32 1
55
%b2 = extractelement <4 x float> %b, i32 2
56
%b3 = extractelement <4 x float> %b, i32 3
57
%cmp0 = icmp ne i32 %c0, 0
58
%cmp1 = icmp ne i32 %c1, 0
59
%cmp2 = icmp ne i32 %c2, 0
60
%cmp3 = icmp ne i32 %c3, 0
61
%s0 = select i1 %cmp0, float %a0, float %b0
62
%s1 = select i1 %cmp1, float %a1, float %b1
63
%s2 = select i1 %cmp2, float %a2, float %b2
64
%s3 = select i1 %cmp3, float %a3, float %b3
65
%ra = insertelement <4 x float> undef, float %s0, i32 0
66
%rb = insertelement <4 x float> %ra, float %s1, i32 1
67
%rc = insertelement <4 x float> %rb, float %s2, i32 2
68
%rd = insertelement <4 x float> %rc, float %s3, i32 3
69
%q0 = extractelement <4 x float> %rd, i32 0
70
%q1 = extractelement <4 x float> %rd, i32 1
71
%q2 = extractelement <4 x float> %rd, i32 2
72
%q3 = extractelement <4 x float> %rd, i32 3
73
%q4 = fadd float %q0, %q1
74
%q5 = fadd float %q2, %q3
75
%q6 = fadd float %q4, %q5
76
%qi = fcmp olt float %q6, %q5
77
call void @llvm.assume(i1 %qi)
81
; Insert in an order different from the vector indices to make sure it
83
define <4 x float> @simple_select_insert_out_of_order(<4 x float> %a, <4 x float> %b, <4 x i32> %c) #0 {
84
; CHECK-LABEL: @simple_select_insert_out_of_order(
85
; CHECK-NEXT: %1 = icmp ne <4 x i32> %c, zeroinitializer
86
; CHECK-NEXT: select <4 x i1> %1, <4 x float> %a, <4 x float> %b
87
%c0 = extractelement <4 x i32> %c, i32 0
88
%c1 = extractelement <4 x i32> %c, i32 1
89
%c2 = extractelement <4 x i32> %c, i32 2
90
%c3 = extractelement <4 x i32> %c, i32 3
91
%a0 = extractelement <4 x float> %a, i32 0
92
%a1 = extractelement <4 x float> %a, i32 1
93
%a2 = extractelement <4 x float> %a, i32 2
94
%a3 = extractelement <4 x float> %a, i32 3
95
%b0 = extractelement <4 x float> %b, i32 0
96
%b1 = extractelement <4 x float> %b, i32 1
97
%b2 = extractelement <4 x float> %b, i32 2
98
%b3 = extractelement <4 x float> %b, i32 3
99
%cmp0 = icmp ne i32 %c0, 0
100
%cmp1 = icmp ne i32 %c1, 0
101
%cmp2 = icmp ne i32 %c2, 0
102
%cmp3 = icmp ne i32 %c3, 0
103
%s0 = select i1 %cmp0, float %a0, float %b0
104
%s1 = select i1 %cmp1, float %a1, float %b1
105
%s2 = select i1 %cmp2, float %a2, float %b2
106
%s3 = select i1 %cmp3, float %a3, float %b3
107
%ra = insertelement <4 x float> undef, float %s0, i32 2
108
%rb = insertelement <4 x float> %ra, float %s1, i32 1
109
%rc = insertelement <4 x float> %rb, float %s2, i32 0
110
%rd = insertelement <4 x float> %rc, float %s3, i32 3
114
declare void @v4f32_user(<4 x float>) #0
115
declare void @f32_user(float) #0
117
; Multiple users of the final constructed vector
118
define <4 x float> @simple_select_users(<4 x float> %a, <4 x float> %b, <4 x i32> %c) #0 {
119
; CHECK-LABEL: @simple_select_users(
120
; CHECK-NEXT: %1 = icmp ne <4 x i32> %c, zeroinitializer
121
; CHECK-NEXT: select <4 x i1> %1, <4 x float> %a, <4 x float> %b
122
%c0 = extractelement <4 x i32> %c, i32 0
123
%c1 = extractelement <4 x i32> %c, i32 1
124
%c2 = extractelement <4 x i32> %c, i32 2
125
%c3 = extractelement <4 x i32> %c, i32 3
126
%a0 = extractelement <4 x float> %a, i32 0
127
%a1 = extractelement <4 x float> %a, i32 1
128
%a2 = extractelement <4 x float> %a, i32 2
129
%a3 = extractelement <4 x float> %a, i32 3
130
%b0 = extractelement <4 x float> %b, i32 0
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%b1 = extractelement <4 x float> %b, i32 1
132
%b2 = extractelement <4 x float> %b, i32 2
133
%b3 = extractelement <4 x float> %b, i32 3
134
%cmp0 = icmp ne i32 %c0, 0
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%cmp1 = icmp ne i32 %c1, 0
136
%cmp2 = icmp ne i32 %c2, 0
137
%cmp3 = icmp ne i32 %c3, 0
138
%s0 = select i1 %cmp0, float %a0, float %b0
139
%s1 = select i1 %cmp1, float %a1, float %b1
140
%s2 = select i1 %cmp2, float %a2, float %b2
141
%s3 = select i1 %cmp3, float %a3, float %b3
142
%ra = insertelement <4 x float> undef, float %s0, i32 0
143
%rb = insertelement <4 x float> %ra, float %s1, i32 1
144
%rc = insertelement <4 x float> %rb, float %s2, i32 2
145
%rd = insertelement <4 x float> %rc, float %s3, i32 3
146
call void @v4f32_user(<4 x float> %rd) #0
150
; Unused insertelement
151
define <4 x float> @simple_select_no_users(<4 x float> %a, <4 x float> %b, <4 x i32> %c) #0 {
152
; CHECK-LABEL: @simple_select_no_users(
153
; CHECK-NOT: icmp ne <4 x i32>
154
; CHECK-NOT: select <4 x i1>
155
%c0 = extractelement <4 x i32> %c, i32 0
156
%c1 = extractelement <4 x i32> %c, i32 1
157
%c2 = extractelement <4 x i32> %c, i32 2
158
%c3 = extractelement <4 x i32> %c, i32 3
159
%a0 = extractelement <4 x float> %a, i32 0
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%a1 = extractelement <4 x float> %a, i32 1
161
%a2 = extractelement <4 x float> %a, i32 2
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%a3 = extractelement <4 x float> %a, i32 3
163
%b0 = extractelement <4 x float> %b, i32 0
164
%b1 = extractelement <4 x float> %b, i32 1
165
%b2 = extractelement <4 x float> %b, i32 2
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%b3 = extractelement <4 x float> %b, i32 3
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%cmp0 = icmp ne i32 %c0, 0
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%cmp1 = icmp ne i32 %c1, 0
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%cmp2 = icmp ne i32 %c2, 0
170
%cmp3 = icmp ne i32 %c3, 0
171
%s0 = select i1 %cmp0, float %a0, float %b0
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%s1 = select i1 %cmp1, float %a1, float %b1
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%s2 = select i1 %cmp2, float %a2, float %b2
174
%s3 = select i1 %cmp3, float %a3, float %b3
175
%ra = insertelement <4 x float> undef, float %s0, i32 0
176
%rb = insertelement <4 x float> %ra, float %s1, i32 1
177
%rc = insertelement <4 x float> undef, float %s2, i32 2
178
%rd = insertelement <4 x float> %rc, float %s3, i32 3
182
; Make sure infinite loop doesn't happen which I ran into when trying
183
; to do this backwards this backwards
184
define <4 x i32> @reconstruct(<4 x i32> %c) #0 {
185
; CHECK-LABEL: @reconstruct(
186
%c0 = extractelement <4 x i32> %c, i32 0
187
%c1 = extractelement <4 x i32> %c, i32 1
188
%c2 = extractelement <4 x i32> %c, i32 2
189
%c3 = extractelement <4 x i32> %c, i32 3
190
%ra = insertelement <4 x i32> undef, i32 %c0, i32 0
191
%rb = insertelement <4 x i32> %ra, i32 %c1, i32 1
192
%rc = insertelement <4 x i32> %rb, i32 %c2, i32 2
193
%rd = insertelement <4 x i32> %rc, i32 %c3, i32 3
197
define <2 x float> @simple_select_v2(<2 x float> %a, <2 x float> %b, <2 x i32> %c) #0 {
198
; CHECK-LABEL: @simple_select_v2(
199
; CHECK: icmp ne <2 x i32>
200
; CHECK: select <2 x i1>
201
%c0 = extractelement <2 x i32> %c, i32 0
202
%c1 = extractelement <2 x i32> %c, i32 1
203
%a0 = extractelement <2 x float> %a, i32 0
204
%a1 = extractelement <2 x float> %a, i32 1
205
%b0 = extractelement <2 x float> %b, i32 0
206
%b1 = extractelement <2 x float> %b, i32 1
207
%cmp0 = icmp ne i32 %c0, 0
208
%cmp1 = icmp ne i32 %c1, 0
209
%s0 = select i1 %cmp0, float %a0, float %b0
210
%s1 = select i1 %cmp1, float %a1, float %b1
211
%ra = insertelement <2 x float> undef, float %s0, i32 0
212
%rb = insertelement <2 x float> %ra, float %s1, i32 1
216
; Make sure when we construct partial vectors, we don't keep
217
; re-visiting the insertelement chains starting with undef
218
; (low cost threshold needed to force this to happen)
219
define <4 x float> @simple_select_partial_vector(<4 x float> %a, <4 x float> %b, <4 x i32> %c) #0 {
220
%c0 = extractelement <4 x i32> %c, i32 0
221
%c1 = extractelement <4 x i32> %c, i32 1
222
%a0 = extractelement <4 x float> %a, i32 0
223
%a1 = extractelement <4 x float> %a, i32 1
224
%b0 = extractelement <4 x float> %b, i32 0
225
%b1 = extractelement <4 x float> %b, i32 1
226
%1 = insertelement <2 x i32> undef, i32 %c0, i32 0
227
%2 = insertelement <2 x i32> %1, i32 %c1, i32 1
228
%3 = icmp ne <2 x i32> %2, zeroinitializer
229
%4 = insertelement <2 x float> undef, float %a0, i32 0
230
%5 = insertelement <2 x float> %4, float %a1, i32 1
231
%6 = insertelement <2 x float> undef, float %b0, i32 0
232
%7 = insertelement <2 x float> %6, float %b1, i32 1
233
%8 = select <2 x i1> %3, <2 x float> %5, <2 x float> %7
234
%9 = extractelement <2 x float> %8, i32 0
235
%ra = insertelement <4 x float> undef, float %9, i32 0
236
%10 = extractelement <2 x float> %8, i32 1
237
%rb = insertelement <4 x float> %ra, float %10, i32 1
241
; Make sure that vectorization happens even if insertelements operations
242
; must be rescheduled. The case here is from compiling Julia.
243
define <4 x float> @reschedule_extract(<4 x float> %a, <4 x float> %b) {
244
; CHECK-LABEL: @reschedule_extract(
245
; CHECK: %1 = fadd <4 x float> %a, %b
246
%a0 = extractelement <4 x float> %a, i32 0
247
%b0 = extractelement <4 x float> %b, i32 0
248
%c0 = fadd float %a0, %b0
249
%v0 = insertelement <4 x float> undef, float %c0, i32 0
250
%a1 = extractelement <4 x float> %a, i32 1
251
%b1 = extractelement <4 x float> %b, i32 1
252
%c1 = fadd float %a1, %b1
253
%v1 = insertelement <4 x float> %v0, float %c1, i32 1
254
%a2 = extractelement <4 x float> %a, i32 2
255
%b2 = extractelement <4 x float> %b, i32 2
256
%c2 = fadd float %a2, %b2
257
%v2 = insertelement <4 x float> %v1, float %c2, i32 2
258
%a3 = extractelement <4 x float> %a, i32 3
259
%b3 = extractelement <4 x float> %b, i32 3
260
%c3 = fadd float %a3, %b3
261
%v3 = insertelement <4 x float> %v2, float %c3, i32 3
265
; Check that cost model for vectorization takes credit for
266
; instructions that are erased.
267
define <4 x float> @take_credit(<4 x float> %a, <4 x float> %b) {
268
; ZEROTHRESH-LABEL: @take_credit(
269
; ZEROTHRESH: %1 = fadd <4 x float> %a, %b
270
%a0 = extractelement <4 x float> %a, i32 0
271
%b0 = extractelement <4 x float> %b, i32 0
272
%c0 = fadd float %a0, %b0
273
%a1 = extractelement <4 x float> %a, i32 1
274
%b1 = extractelement <4 x float> %b, i32 1
275
%c1 = fadd float %a1, %b1
276
%a2 = extractelement <4 x float> %a, i32 2
277
%b2 = extractelement <4 x float> %b, i32 2
278
%c2 = fadd float %a2, %b2
279
%a3 = extractelement <4 x float> %a, i32 3
280
%b3 = extractelement <4 x float> %b, i32 3
281
%c3 = fadd float %a3, %b3
282
%v0 = insertelement <4 x float> undef, float %c0, i32 0
283
%v1 = insertelement <4 x float> %v0, float %c1, i32 1
284
%v2 = insertelement <4 x float> %v1, float %c2, i32 2
285
%v3 = insertelement <4 x float> %v2, float %c3, i32 3
289
; Make sure we handle multiple trees that feed one build vector correctly.
290
define <4 x double> @multi_tree(double %w, double %x, double %y, double %z) {
292
%t0 = fadd double %w , 0.000000e+00
293
%t1 = fadd double %x , 1.000000e+00
294
%t2 = fadd double %y , 2.000000e+00
295
%t3 = fadd double %z , 3.000000e+00
296
%t4 = fmul double %t0, 1.000000e+00
297
%i1 = insertelement <4 x double> undef, double %t4, i32 3
298
%t5 = fmul double %t1, 1.000000e+00
299
%i2 = insertelement <4 x double> %i1, double %t5, i32 2
300
%t6 = fmul double %t2, 1.000000e+00
301
%i3 = insertelement <4 x double> %i2, double %t6, i32 1
302
%t7 = fmul double %t3, 1.000000e+00
303
%i4 = insertelement <4 x double> %i3, double %t7, i32 0
306
; CHECK-LABEL: @multi_tree
307
; CHECK-DAG: %[[V0:.+]] = insertelement <2 x double> undef, double %w, i32 0
308
; CHECK-DAG: %[[V1:.+]] = insertelement <2 x double> %[[V0]], double %x, i32 1
309
; CHECK-DAG: %[[V2:.+]] = fadd <2 x double> %[[V1]], <double 0.000000e+00, double 1.000000e+00>
310
; CHECK-DAG: %[[V3:.+]] = insertelement <2 x double> undef, double %y, i32 0
311
; CHECK-DAG: %[[V4:.+]] = insertelement <2 x double> %[[V3]], double %z, i32 1
312
; CHECK-DAG: %[[V5:.+]] = fadd <2 x double> %[[V4]], <double 2.000000e+00, double 3.000000e+00>
313
; CHECK-DAG: %[[V6:.+]] = fmul <2 x double> <double 1.000000e+00, double 1.000000e+00>, %[[V2]]
314
; CHECK-DAG: %[[V7:.+]] = extractelement <2 x double> %[[V6]], i32 0
315
; CHECK-DAG: %[[I1:.+]] = insertelement <4 x double> undef, double %[[V7]], i32 3
316
; CHECK-DAG: %[[V8:.+]] = extractelement <2 x double> %[[V6]], i32 1
317
; CHECK-DAG: %[[I2:.+]] = insertelement <4 x double> %[[I1]], double %[[V8]], i32 2
318
; CHECK-DAG: %[[V9:.+]] = fmul <2 x double> <double 1.000000e+00, double 1.000000e+00>, %[[V5]]
319
; CHECK-DAG: %[[V10:.+]] = extractelement <2 x double> %[[V9]], i32 0
320
; CHECK-DAG: %[[I3:.+]] = insertelement <4 x double> %i2, double %[[V10]], i32 1
321
; CHECK-DAG: %[[V11:.+]] = extractelement <2 x double> %[[V9]], i32 1
322
; CHECK-DAG: %[[I4:.+]] = insertelement <4 x double> %i3, double %[[V11]], i32 0
323
; CHECK: ret <4 x double> %[[I4]]
325
attributes #0 = { nounwind ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }