1 ; RUN: llc < %s -debug-only=isel -o /dev/null 2>&1 | FileCheck %s
4 @a = global [1024 x i32] zeroinitializer, align 16
6 define i32 @reduce_add() {
7 ; CHECK-LABEL: reduce_add
8 ; CHECK: Detected a reduction operation: {{.*}} add
9 ; CHECK: Detected a reduction operation: {{.*}} add
10 ; CHECK: Detected a reduction operation: {{.*}} add
11 ; CHECK: Detected a reduction operation: {{.*}} add
12 ; CHECK: Detected a reduction operation: {{.*}} add
13 ; CHECK: Detected a reduction operation: {{.*}} add
14 ; CHECK: Detected a reduction operation: {{.*}} add
15 ; CHECK: Detected a reduction operation: {{.*}} add
16 ; CHECK: Detected a reduction operation: {{.*}} add
17 ; CHECK: Detected a reduction operation: {{.*}} add
18 ; CHECK: Detected a reduction operation: {{.*}} add
24 %index = phi i64 [ 0, %min.iters.checked ], [ %index.next.4, %vector.body ]
25 %vec.phi = phi <4 x i32> [ zeroinitializer, %min.iters.checked ], [ %28, %vector.body ]
26 %vec.phi4 = phi <4 x i32> [ zeroinitializer, %min.iters.checked ], [ %29, %vector.body ]
27 %0 = getelementptr inbounds [1024 x i32], [1024 x i32]* @a, i64 0, i64 %index
28 %1 = bitcast i32* %0 to <4 x i32>*
29 %wide.load = load <4 x i32>, <4 x i32>* %1, align 16
30 %2 = getelementptr i32, i32* %0, i64 4
31 %3 = bitcast i32* %2 to <4 x i32>*
32 %wide.load5 = load <4 x i32>, <4 x i32>* %3, align 16
33 %4 = add nsw <4 x i32> %wide.load, %vec.phi
34 %5 = add nsw <4 x i32> %wide.load5, %vec.phi4
35 %index.next = add nuw nsw i64 %index, 8
36 %6 = getelementptr inbounds [1024 x i32], [1024 x i32]* @a, i64 0, i64 %index.next
37 %7 = bitcast i32* %6 to <4 x i32>*
38 %wide.load.1 = load <4 x i32>, <4 x i32>* %7, align 16
39 %8 = getelementptr i32, i32* %6, i64 4
40 %9 = bitcast i32* %8 to <4 x i32>*
41 %wide.load5.1 = load <4 x i32>, <4 x i32>* %9, align 16
42 %10 = add nsw <4 x i32> %wide.load.1, %4
43 %11 = add nsw <4 x i32> %wide.load5.1, %5
44 %index.next.1 = add nsw i64 %index, 16
45 %12 = getelementptr inbounds [1024 x i32], [1024 x i32]* @a, i64 0, i64 %index.next.1
46 %13 = bitcast i32* %12 to <4 x i32>*
47 %wide.load.2 = load <4 x i32>, <4 x i32>* %13, align 16
48 %14 = getelementptr i32, i32* %12, i64 4
49 %15 = bitcast i32* %14 to <4 x i32>*
50 %wide.load5.2 = load <4 x i32>, <4 x i32>* %15, align 16
51 %16 = add nsw <4 x i32> %wide.load.2, %10
52 %17 = add nsw <4 x i32> %wide.load5.2, %11
53 %index.next.2 = add nsw i64 %index, 24
54 %18 = getelementptr inbounds [1024 x i32], [1024 x i32]* @a, i64 0, i64 %index.next.2
55 %19 = bitcast i32* %18 to <4 x i32>*
56 %wide.load.3 = load <4 x i32>, <4 x i32>* %19, align 16
57 %20 = getelementptr i32, i32* %18, i64 4
58 %21 = bitcast i32* %20 to <4 x i32>*
59 %wide.load5.3 = load <4 x i32>, <4 x i32>* %21, align 16
60 %22 = add nsw <4 x i32> %wide.load.3, %16
61 %23 = add nsw <4 x i32> %wide.load5.3, %17
62 %index.next.3 = add nsw i64 %index, 32
63 %24 = getelementptr inbounds [1024 x i32], [1024 x i32]* @a, i64 0, i64 %index.next.3
64 %25 = bitcast i32* %24 to <4 x i32>*
65 %wide.load.4 = load <4 x i32>, <4 x i32>* %25, align 16
66 %26 = getelementptr i32, i32* %24, i64 4
67 %27 = bitcast i32* %26 to <4 x i32>*
68 %wide.load5.4 = load <4 x i32>, <4 x i32>* %27, align 16
69 %28 = add nsw <4 x i32> %wide.load.4, %22
70 %29 = add nsw <4 x i32> %wide.load5.4, %23
71 %index.next.4 = add nsw i64 %index, 40
72 %30 = icmp eq i64 %index.next.4, 1000
73 br i1 %30, label %middle.block, label %vector.body
76 %.lcssa10 = phi <4 x i32> [ %29, %vector.body ]
77 %.lcssa = phi <4 x i32> [ %28, %vector.body ]
78 %bin.rdx = add <4 x i32> %.lcssa10, %.lcssa
79 %rdx.shuf = shufflevector <4 x i32> %bin.rdx, <4 x i32> undef, <4 x i32> <i32 2, i32 3, i32 undef, i32 undef>
80 %bin.rdx6 = add <4 x i32> %bin.rdx, %rdx.shuf
81 %rdx.shuf7 = shufflevector <4 x i32> %bin.rdx6, <4 x i32> undef, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
82 %bin.rdx8 = add <4 x i32> %bin.rdx6, %rdx.shuf7
83 %31 = extractelement <4 x i32> %bin.rdx8, i32 0
87 define i32 @reduce_and() {
88 ; CHECK-LABEL: reduce_and
89 ; CHECK: Detected a reduction operation: {{.*}} and
90 ; CHECK: Detected a reduction operation: {{.*}} and
91 ; CHECK: Detected a reduction operation: {{.*}} and
92 ; CHECK: Detected a reduction operation: {{.*}} and
93 ; CHECK: Detected a reduction operation: {{.*}} and
94 ; CHECK: Detected a reduction operation: {{.*}} and
95 ; CHECK: Detected a reduction operation: {{.*}} and
96 ; CHECK: Detected a reduction operation: {{.*}} and
97 ; CHECK: Detected a reduction operation: {{.*}} and
100 br label %vector.body
103 %lsr.iv = phi i64 [ %lsr.iv.next, %vector.body ], [ -4096, %entry ]
104 %vec.phi = phi <4 x i32> [ <i32 -1, i32 -1, i32 -1, i32 -1>, %entry ], [ %6, %vector.body ]
105 %vec.phi9 = phi <4 x i32> [ <i32 -1, i32 -1, i32 -1, i32 -1>, %entry ], [ %7, %vector.body ]
106 %uglygep33 = getelementptr i8, i8* bitcast ([1024 x i32]* @a to i8*), i64 %lsr.iv
107 %uglygep3334 = bitcast i8* %uglygep33 to <4 x i32>*
108 %scevgep35 = getelementptr <4 x i32>, <4 x i32>* %uglygep3334, i64 256
109 %wide.load = load <4 x i32>, <4 x i32>* %scevgep35, align 16
110 %scevgep36 = getelementptr <4 x i32>, <4 x i32>* %uglygep3334, i64 257
111 %wide.load10 = load <4 x i32>, <4 x i32>* %scevgep36, align 16
112 %0 = and <4 x i32> %wide.load, %vec.phi
113 %1 = and <4 x i32> %wide.load10, %vec.phi9
114 %uglygep30 = getelementptr i8, i8* bitcast ([1024 x i32]* @a to i8*), i64 %lsr.iv
115 %uglygep3031 = bitcast i8* %uglygep30 to <4 x i32>*
116 %scevgep32 = getelementptr <4 x i32>, <4 x i32>* %uglygep3031, i64 258
117 %wide.load.1 = load <4 x i32>, <4 x i32>* %scevgep32, align 16
118 %uglygep27 = getelementptr i8, i8* bitcast ([1024 x i32]* @a to i8*), i64 %lsr.iv
119 %uglygep2728 = bitcast i8* %uglygep27 to <4 x i32>*
120 %scevgep29 = getelementptr <4 x i32>, <4 x i32>* %uglygep2728, i64 259
121 %wide.load10.1 = load <4 x i32>, <4 x i32>* %scevgep29, align 16
122 %2 = and <4 x i32> %wide.load.1, %0
123 %3 = and <4 x i32> %wide.load10.1, %1
124 %uglygep24 = getelementptr i8, i8* bitcast ([1024 x i32]* @a to i8*), i64 %lsr.iv
125 %uglygep2425 = bitcast i8* %uglygep24 to <4 x i32>*
126 %scevgep26 = getelementptr <4 x i32>, <4 x i32>* %uglygep2425, i64 260
127 %wide.load.2 = load <4 x i32>, <4 x i32>* %scevgep26, align 16
128 %uglygep21 = getelementptr i8, i8* bitcast ([1024 x i32]* @a to i8*), i64 %lsr.iv
129 %uglygep2122 = bitcast i8* %uglygep21 to <4 x i32>*
130 %scevgep23 = getelementptr <4 x i32>, <4 x i32>* %uglygep2122, i64 261
131 %wide.load10.2 = load <4 x i32>, <4 x i32>* %scevgep23, align 16
132 %4 = and <4 x i32> %wide.load.2, %2
133 %5 = and <4 x i32> %wide.load10.2, %3
134 %uglygep18 = getelementptr i8, i8* bitcast ([1024 x i32]* @a to i8*), i64 %lsr.iv
135 %uglygep1819 = bitcast i8* %uglygep18 to <4 x i32>*
136 %scevgep20 = getelementptr <4 x i32>, <4 x i32>* %uglygep1819, i64 262
137 %wide.load.3 = load <4 x i32>, <4 x i32>* %scevgep20, align 16
138 %uglygep = getelementptr i8, i8* bitcast ([1024 x i32]* @a to i8*), i64 %lsr.iv
139 %uglygep17 = bitcast i8* %uglygep to <4 x i32>*
140 %scevgep = getelementptr <4 x i32>, <4 x i32>* %uglygep17, i64 263
141 %wide.load10.3 = load <4 x i32>, <4 x i32>* %scevgep, align 16
142 %6 = and <4 x i32> %wide.load.3, %4
143 %7 = and <4 x i32> %wide.load10.3, %5
144 %lsr.iv.next = add nsw i64 %lsr.iv, 128
145 %8 = icmp eq i64 %lsr.iv.next, 0
146 br i1 %8, label %middle.block, label %vector.body
149 %bin.rdx = and <4 x i32> %7, %6
150 %rdx.shuf = shufflevector <4 x i32> %bin.rdx, <4 x i32> undef, <4 x i32> <i32 2, i32 3, i32 undef, i32 undef>
151 %bin.rdx11 = and <4 x i32> %bin.rdx, %rdx.shuf
152 %rdx.shuf12 = shufflevector <4 x i32> %bin.rdx11, <4 x i32> undef, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
153 %bin.rdx13 = and <4 x i32> %bin.rdx11, %rdx.shuf12
154 %9 = extractelement <4 x i32> %bin.rdx13, i32 0
158 define float @reduce_add_float(float* nocapture readonly %a) {
159 ; CHECK-LABEL: reduce_add_float
160 ; CHECK: Detected a reduction operation: {{.*}} fadd fast
161 ; CHECK: Detected a reduction operation: {{.*}} fadd fast
162 ; CHECK: Detected a reduction operation: {{.*}} fadd fast
163 ; CHECK: Detected a reduction operation: {{.*}} fadd fast
164 ; CHECK: Detected a reduction operation: {{.*}} fadd fast
165 ; CHECK: Detected a reduction operation: {{.*}} fadd fast
166 ; CHECK: Detected a reduction operation: {{.*}} fadd fast
167 ; CHECK: Detected a reduction operation: {{.*}} fadd fast
168 ; CHECK: Detected a reduction operation: {{.*}} fadd fast
169 ; CHECK: Detected a reduction operation: {{.*}} fadd fast
170 ; CHECK: Detected a reduction operation: {{.*}} fadd fast
173 br label %vector.body
176 %index = phi i64 [ 0, %entry ], [ %index.next.4, %vector.body ]
177 %vec.phi = phi <4 x float> [ zeroinitializer, %entry ], [ %28, %vector.body ]
178 %vec.phi9 = phi <4 x float> [ zeroinitializer, %entry ], [ %29, %vector.body ]
179 %0 = getelementptr inbounds float, float* %a, i64 %index
180 %1 = bitcast float* %0 to <4 x float>*
181 %wide.load = load <4 x float>, <4 x float>* %1, align 4
182 %2 = getelementptr float, float* %0, i64 4
183 %3 = bitcast float* %2 to <4 x float>*
184 %wide.load10 = load <4 x float>, <4 x float>* %3, align 4
185 %4 = fadd fast <4 x float> %wide.load, %vec.phi
186 %5 = fadd fast <4 x float> %wide.load10, %vec.phi9
187 %index.next = add nuw nsw i64 %index, 8
188 %6 = getelementptr inbounds float, float* %a, i64 %index.next
189 %7 = bitcast float* %6 to <4 x float>*
190 %wide.load.1 = load <4 x float>, <4 x float>* %7, align 4
191 %8 = getelementptr float, float* %6, i64 4
192 %9 = bitcast float* %8 to <4 x float>*
193 %wide.load10.1 = load <4 x float>, <4 x float>* %9, align 4
194 %10 = fadd fast <4 x float> %wide.load.1, %4
195 %11 = fadd fast <4 x float> %wide.load10.1, %5
196 %index.next.1 = add nsw i64 %index, 16
197 %12 = getelementptr inbounds float, float* %a, i64 %index.next.1
198 %13 = bitcast float* %12 to <4 x float>*
199 %wide.load.2 = load <4 x float>, <4 x float>* %13, align 4
200 %14 = getelementptr float, float* %12, i64 4
201 %15 = bitcast float* %14 to <4 x float>*
202 %wide.load10.2 = load <4 x float>, <4 x float>* %15, align 4
203 %16 = fadd fast <4 x float> %wide.load.2, %10
204 %17 = fadd fast <4 x float> %wide.load10.2, %11
205 %index.next.2 = add nsw i64 %index, 24
206 %18 = getelementptr inbounds float, float* %a, i64 %index.next.2
207 %19 = bitcast float* %18 to <4 x float>*
208 %wide.load.3 = load <4 x float>, <4 x float>* %19, align 4
209 %20 = getelementptr float, float* %18, i64 4
210 %21 = bitcast float* %20 to <4 x float>*
211 %wide.load10.3 = load <4 x float>, <4 x float>* %21, align 4
212 %22 = fadd fast <4 x float> %wide.load.3, %16
213 %23 = fadd fast <4 x float> %wide.load10.3, %17
214 %index.next.3 = add nsw i64 %index, 32
215 %24 = getelementptr inbounds float, float* %a, i64 %index.next.3
216 %25 = bitcast float* %24 to <4 x float>*
217 %wide.load.4 = load <4 x float>, <4 x float>* %25, align 4
218 %26 = getelementptr float, float* %24, i64 4
219 %27 = bitcast float* %26 to <4 x float>*
220 %wide.load10.4 = load <4 x float>, <4 x float>* %27, align 4
221 %28 = fadd fast <4 x float> %wide.load.4, %22
222 %29 = fadd fast <4 x float> %wide.load10.4, %23
223 %index.next.4 = add nsw i64 %index, 40
224 %30 = icmp eq i64 %index.next.4, 1000
225 br i1 %30, label %middle.block, label %vector.body
228 %.lcssa15 = phi <4 x float> [ %29, %vector.body ]
229 %.lcssa = phi <4 x float> [ %28, %vector.body ]
230 %bin.rdx = fadd fast <4 x float> %.lcssa15, %.lcssa
231 %rdx.shuf = shufflevector <4 x float> %bin.rdx, <4 x float> undef, <4 x i32> <i32 2, i32 3, i32 undef, i32 undef>
232 %bin.rdx11 = fadd fast <4 x float> %bin.rdx, %rdx.shuf
233 %rdx.shuf12 = shufflevector <4 x float> %bin.rdx11, <4 x float> undef, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
234 %bin.rdx13 = fadd fast <4 x float> %bin.rdx11, %rdx.shuf12
235 %31 = extractelement <4 x float> %bin.rdx13, i32 0