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 ; Insert in an order different from the vector indices to make sure it
40 define <4 x float> @simple_select_insert_out_of_order(<4 x float> %a, <4 x float> %b, <4 x i32> %c) #0 {
41 ; CHECK-LABEL: @simple_select_insert_out_of_order(
42 ; CHECK-NEXT: %1 = icmp ne <4 x i32> %c, zeroinitializer
43 ; CHECK-NEXT: select <4 x i1> %1, <4 x float> %a, <4 x float> %b
44 %c0 = extractelement <4 x i32> %c, i32 0
45 %c1 = extractelement <4 x i32> %c, i32 1
46 %c2 = extractelement <4 x i32> %c, i32 2
47 %c3 = extractelement <4 x i32> %c, i32 3
48 %a0 = extractelement <4 x float> %a, i32 0
49 %a1 = extractelement <4 x float> %a, i32 1
50 %a2 = extractelement <4 x float> %a, i32 2
51 %a3 = extractelement <4 x float> %a, i32 3
52 %b0 = extractelement <4 x float> %b, i32 0
53 %b1 = extractelement <4 x float> %b, i32 1
54 %b2 = extractelement <4 x float> %b, i32 2
55 %b3 = extractelement <4 x float> %b, i32 3
56 %cmp0 = icmp ne i32 %c0, 0
57 %cmp1 = icmp ne i32 %c1, 0
58 %cmp2 = icmp ne i32 %c2, 0
59 %cmp3 = icmp ne i32 %c3, 0
60 %s0 = select i1 %cmp0, float %a0, float %b0
61 %s1 = select i1 %cmp1, float %a1, float %b1
62 %s2 = select i1 %cmp2, float %a2, float %b2
63 %s3 = select i1 %cmp3, float %a3, float %b3
64 %ra = insertelement <4 x float> undef, float %s0, i32 2
65 %rb = insertelement <4 x float> %ra, float %s1, i32 1
66 %rc = insertelement <4 x float> %rb, float %s2, i32 0
67 %rd = insertelement <4 x float> %rc, float %s3, i32 3
71 declare void @v4f32_user(<4 x float>) #0
72 declare void @f32_user(float) #0
74 ; Multiple users of the final constructed vector
75 define <4 x float> @simple_select_users(<4 x float> %a, <4 x float> %b, <4 x i32> %c) #0 {
76 ; CHECK-LABEL: @simple_select_users(
77 ; CHECK-NEXT: %1 = icmp ne <4 x i32> %c, zeroinitializer
78 ; CHECK-NEXT: select <4 x i1> %1, <4 x float> %a, <4 x float> %b
79 %c0 = extractelement <4 x i32> %c, i32 0
80 %c1 = extractelement <4 x i32> %c, i32 1
81 %c2 = extractelement <4 x i32> %c, i32 2
82 %c3 = extractelement <4 x i32> %c, i32 3
83 %a0 = extractelement <4 x float> %a, i32 0
84 %a1 = extractelement <4 x float> %a, i32 1
85 %a2 = extractelement <4 x float> %a, i32 2
86 %a3 = extractelement <4 x float> %a, i32 3
87 %b0 = extractelement <4 x float> %b, i32 0
88 %b1 = extractelement <4 x float> %b, i32 1
89 %b2 = extractelement <4 x float> %b, i32 2
90 %b3 = extractelement <4 x float> %b, i32 3
91 %cmp0 = icmp ne i32 %c0, 0
92 %cmp1 = icmp ne i32 %c1, 0
93 %cmp2 = icmp ne i32 %c2, 0
94 %cmp3 = icmp ne i32 %c3, 0
95 %s0 = select i1 %cmp0, float %a0, float %b0
96 %s1 = select i1 %cmp1, float %a1, float %b1
97 %s2 = select i1 %cmp2, float %a2, float %b2
98 %s3 = select i1 %cmp3, float %a3, float %b3
99 %ra = insertelement <4 x float> undef, float %s0, i32 0
100 %rb = insertelement <4 x float> %ra, float %s1, i32 1
101 %rc = insertelement <4 x float> %rb, float %s2, i32 2
102 %rd = insertelement <4 x float> %rc, float %s3, i32 3
103 call void @v4f32_user(<4 x float> %rd) #0
107 ; Unused insertelement
108 define <4 x float> @simple_select_no_users(<4 x float> %a, <4 x float> %b, <4 x i32> %c) #0 {
109 ; CHECK-LABEL: @simple_select_no_users(
110 ; CHECK-NOT: icmp ne <4 x i32>
111 ; CHECK-NOT: select <4 x i1>
112 %c0 = extractelement <4 x i32> %c, i32 0
113 %c1 = extractelement <4 x i32> %c, i32 1
114 %c2 = extractelement <4 x i32> %c, i32 2
115 %c3 = extractelement <4 x i32> %c, i32 3
116 %a0 = extractelement <4 x float> %a, i32 0
117 %a1 = extractelement <4 x float> %a, i32 1
118 %a2 = extractelement <4 x float> %a, i32 2
119 %a3 = extractelement <4 x float> %a, i32 3
120 %b0 = extractelement <4 x float> %b, i32 0
121 %b1 = extractelement <4 x float> %b, i32 1
122 %b2 = extractelement <4 x float> %b, i32 2
123 %b3 = extractelement <4 x float> %b, i32 3
124 %cmp0 = icmp ne i32 %c0, 0
125 %cmp1 = icmp ne i32 %c1, 0
126 %cmp2 = icmp ne i32 %c2, 0
127 %cmp3 = icmp ne i32 %c3, 0
128 %s0 = select i1 %cmp0, float %a0, float %b0
129 %s1 = select i1 %cmp1, float %a1, float %b1
130 %s2 = select i1 %cmp2, float %a2, float %b2
131 %s3 = select i1 %cmp3, float %a3, float %b3
132 %ra = insertelement <4 x float> undef, float %s0, i32 0
133 %rb = insertelement <4 x float> %ra, float %s1, i32 1
134 %rc = insertelement <4 x float> undef, float %s2, i32 2
135 %rd = insertelement <4 x float> %rc, float %s3, i32 3
139 ; Make sure infinite loop doesn't happen which I ran into when trying
140 ; to do this backwards this backwards
141 define <4 x i32> @reconstruct(<4 x i32> %c) #0 {
142 ; CHECK-LABEL: @reconstruct(
143 %c0 = extractelement <4 x i32> %c, i32 0
144 %c1 = extractelement <4 x i32> %c, i32 1
145 %c2 = extractelement <4 x i32> %c, i32 2
146 %c3 = extractelement <4 x i32> %c, i32 3
147 %ra = insertelement <4 x i32> undef, i32 %c0, i32 0
148 %rb = insertelement <4 x i32> %ra, i32 %c1, i32 1
149 %rc = insertelement <4 x i32> %rb, i32 %c2, i32 2
150 %rd = insertelement <4 x i32> %rc, i32 %c3, i32 3
154 define <2 x float> @simple_select_v2(<2 x float> %a, <2 x float> %b, <2 x i32> %c) #0 {
155 ; CHECK-LABEL: @simple_select_v2(
156 ; CHECK: icmp ne <2 x i32>
157 ; CHECK: select <2 x i1>
158 %c0 = extractelement <2 x i32> %c, i32 0
159 %c1 = extractelement <2 x i32> %c, i32 1
160 %a0 = extractelement <2 x float> %a, i32 0
161 %a1 = extractelement <2 x float> %a, i32 1
162 %b0 = extractelement <2 x float> %b, i32 0
163 %b1 = extractelement <2 x float> %b, i32 1
164 %cmp0 = icmp ne i32 %c0, 0
165 %cmp1 = icmp ne i32 %c1, 0
166 %s0 = select i1 %cmp0, float %a0, float %b0
167 %s1 = select i1 %cmp1, float %a1, float %b1
168 %ra = insertelement <2 x float> undef, float %s0, i32 0
169 %rb = insertelement <2 x float> %ra, float %s1, i32 1
173 ; Make sure when we construct partial vectors, we don't keep
174 ; re-visiting the insertelement chains starting with undef
175 ; (low cost threshold needed to force this to happen)
176 define <4 x float> @simple_select_partial_vector(<4 x float> %a, <4 x float> %b, <4 x i32> %c) #0 {
177 %c0 = extractelement <4 x i32> %c, i32 0
178 %c1 = extractelement <4 x i32> %c, i32 1
179 %a0 = extractelement <4 x float> %a, i32 0
180 %a1 = extractelement <4 x float> %a, i32 1
181 %b0 = extractelement <4 x float> %b, i32 0
182 %b1 = extractelement <4 x float> %b, i32 1
183 %1 = insertelement <2 x i32> undef, i32 %c0, i32 0
184 %2 = insertelement <2 x i32> %1, i32 %c1, i32 1
185 %3 = icmp ne <2 x i32> %2, zeroinitializer
186 %4 = insertelement <2 x float> undef, float %a0, i32 0
187 %5 = insertelement <2 x float> %4, float %a1, i32 1
188 %6 = insertelement <2 x float> undef, float %b0, i32 0
189 %7 = insertelement <2 x float> %6, float %b1, i32 1
190 %8 = select <2 x i1> %3, <2 x float> %5, <2 x float> %7
191 %9 = extractelement <2 x float> %8, i32 0
192 %ra = insertelement <4 x float> undef, float %9, i32 0
193 %10 = extractelement <2 x float> %8, i32 1
194 %rb = insertelement <4 x float> %ra, float %10, i32 1
198 ; Make sure that vectorization happens even if insertelements operations
199 ; must be rescheduled. The case here is from compiling Julia.
200 define <4 x float> @reschedule_extract(<4 x float> %a, <4 x float> %b) {
201 ; CHECK-LABEL: @reschedule_extract(
202 ; CHECK: %1 = fadd <4 x float> %a, %b
203 %a0 = extractelement <4 x float> %a, i32 0
204 %b0 = extractelement <4 x float> %b, i32 0
205 %c0 = fadd float %a0, %b0
206 %v0 = insertelement <4 x float> undef, float %c0, i32 0
207 %a1 = extractelement <4 x float> %a, i32 1
208 %b1 = extractelement <4 x float> %b, i32 1
209 %c1 = fadd float %a1, %b1
210 %v1 = insertelement <4 x float> %v0, float %c1, i32 1
211 %a2 = extractelement <4 x float> %a, i32 2
212 %b2 = extractelement <4 x float> %b, i32 2
213 %c2 = fadd float %a2, %b2
214 %v2 = insertelement <4 x float> %v1, float %c2, i32 2
215 %a3 = extractelement <4 x float> %a, i32 3
216 %b3 = extractelement <4 x float> %b, i32 3
217 %c3 = fadd float %a3, %b3
218 %v3 = insertelement <4 x float> %v2, float %c3, i32 3
222 ; Check that cost model for vectorization takes credit for
223 ; instructions that are erased.
224 define <4 x float> @take_credit(<4 x float> %a, <4 x float> %b) {
225 ; ZEROTHRESH-LABEL: @take_credit(
226 ; ZEROTHRESH-CHECK: %1 = fadd <4 x float> %a, %b
227 %a0 = extractelement <4 x float> %a, i32 0
228 %b0 = extractelement <4 x float> %b, i32 0
229 %c0 = fadd float %a0, %b0
230 %a1 = extractelement <4 x float> %a, i32 1
231 %b1 = extractelement <4 x float> %b, i32 1
232 %c1 = fadd float %a1, %b1
233 %a2 = extractelement <4 x float> %a, i32 2
234 %b2 = extractelement <4 x float> %b, i32 2
235 %c2 = fadd float %a2, %b2
236 %a3 = extractelement <4 x float> %a, i32 3
237 %b3 = extractelement <4 x float> %b, i32 3
238 %c3 = fadd float %a3, %b3
239 %v0 = insertelement <4 x float> undef, float %c0, i32 0
240 %v1 = insertelement <4 x float> %v0, float %c1, i32 1
241 %v2 = insertelement <4 x float> %v1, float %c2, i32 2
242 %v3 = insertelement <4 x float> %v2, float %c3, i32 3
246 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" }