1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt -S -mtriple=aarch64--linux-gnu -passes=slp-vectorizer,dce,instcombine -slp-threshold=-7 -pass-remarks-output=%t < %s | FileCheck %s
3 ; RUN: cat %t | FileCheck -check-prefix=YAML %s
4 ; RUN: opt -S -mtriple=aarch64--linux-gnu -passes='slp-vectorizer,dce,instcombine' -slp-threshold=-7 -pass-remarks-output=%t < %s | FileCheck %s
5 ; RUN: cat %t | FileCheck -check-prefix=YAML %s
7 ; These tests check that we remove from consideration pairs of seed
8 ; getelementptrs when they are known to have a constant difference. Such pairs
9 ; are likely not good candidates for vectorization since one can be computed
10 ; from the other. We use an unprofitable threshold to force vectorization.
12 ; int getelementptr(int *g, int n, int w, int x, int y, int z) {
14 ; for (int i = 0; i < n ; ++i) {
15 ; sum += g[2*i + w]; sum += g[2*i + x];
16 ; sum += g[2*i + y]; sum += g[2*i + z];
22 ; YAML-LABEL: Function: getelementptr_4x32
24 ; YAML-NEXT: Pass: slp-vectorizer
25 ; YAML-NEXT: Name: VectorizedList
26 ; YAML-NEXT: Function: getelementptr_4x32
28 ; YAML-NEXT: - String: 'SLP vectorized with cost '
29 ; YAML-NEXT: - Cost: '4'
30 ; YAML-NEXT: - String: ' and with tree size '
31 ; YAML-NEXT: - TreeSize: '3'
34 ; YAML-NEXT: Pass: slp-vectorizer
35 ; YAML-NEXT: Name: VectorizedList
36 ; YAML-NEXT: Function: getelementptr_4x32
38 ; YAML-NEXT: - String: 'SLP vectorized with cost '
39 ; YAML-NEXT: - Cost: '6'
40 ; YAML-NEXT: - String: ' and with tree size '
41 ; YAML-NEXT: - TreeSize: '3'
43 define i32 @getelementptr_4x32(ptr nocapture readonly %g, i32 %n, i32 %x, i32 %y, i32 %z) {
44 ; CHECK-LABEL: @getelementptr_4x32(
46 ; CHECK-NEXT: [[CMP31:%.*]] = icmp sgt i32 [[N:%.*]], 0
47 ; CHECK-NEXT: br i1 [[CMP31]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_COND_CLEANUP:%.*]]
48 ; CHECK: for.body.preheader:
49 ; CHECK-NEXT: [[TMP0:%.*]] = insertelement <2 x i32> <i32 0, i32 poison>, i32 [[X:%.*]], i64 1
50 ; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x i32> poison, i32 [[Y:%.*]], i64 0
51 ; CHECK-NEXT: [[TMP2:%.*]] = insertelement <2 x i32> [[TMP1]], i32 [[Z:%.*]], i64 1
52 ; CHECK-NEXT: br label [[FOR_BODY:%.*]]
53 ; CHECK: for.cond.cleanup.loopexit:
54 ; CHECK-NEXT: br label [[FOR_COND_CLEANUP]]
55 ; CHECK: for.cond.cleanup:
56 ; CHECK-NEXT: [[SUM_0_LCSSA:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[ADD16:%.*]], [[FOR_COND_CLEANUP_LOOPEXIT:%.*]] ]
57 ; CHECK-NEXT: ret i32 [[SUM_0_LCSSA]]
59 ; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i32 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
60 ; CHECK-NEXT: [[SUM_032:%.*]] = phi i32 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[ADD16]], [[FOR_BODY]] ]
61 ; CHECK-NEXT: [[T4:%.*]] = shl nuw nsw i32 [[INDVARS_IV]], 1
62 ; CHECK-NEXT: [[TMP3:%.*]] = insertelement <2 x i32> poison, i32 [[T4]], i64 0
63 ; CHECK-NEXT: [[TMP4:%.*]] = shufflevector <2 x i32> [[TMP3]], <2 x i32> poison, <2 x i32> zeroinitializer
64 ; CHECK-NEXT: [[TMP5:%.*]] = add nsw <2 x i32> [[TMP4]], [[TMP0]]
65 ; CHECK-NEXT: [[TMP6:%.*]] = extractelement <2 x i32> [[TMP5]], i64 0
66 ; CHECK-NEXT: [[TMP7:%.*]] = zext nneg i32 [[TMP6]] to i64
67 ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i32, ptr [[G:%.*]], i64 [[TMP7]]
68 ; CHECK-NEXT: [[T6:%.*]] = load i32, ptr [[ARRAYIDX]], align 4
69 ; CHECK-NEXT: [[ADD1:%.*]] = add nsw i32 [[T6]], [[SUM_032]]
70 ; CHECK-NEXT: [[TMP8:%.*]] = extractelement <2 x i32> [[TMP5]], i64 1
71 ; CHECK-NEXT: [[TMP9:%.*]] = sext i32 [[TMP8]] to i64
72 ; CHECK-NEXT: [[ARRAYIDX5:%.*]] = getelementptr inbounds i32, ptr [[G]], i64 [[TMP9]]
73 ; CHECK-NEXT: [[T8:%.*]] = load i32, ptr [[ARRAYIDX5]], align 4
74 ; CHECK-NEXT: [[ADD6:%.*]] = add nsw i32 [[ADD1]], [[T8]]
75 ; CHECK-NEXT: [[TMP10:%.*]] = add nsw <2 x i32> [[TMP4]], [[TMP2]]
76 ; CHECK-NEXT: [[TMP11:%.*]] = extractelement <2 x i32> [[TMP10]], i64 0
77 ; CHECK-NEXT: [[TMP12:%.*]] = sext i32 [[TMP11]] to i64
78 ; CHECK-NEXT: [[ARRAYIDX10:%.*]] = getelementptr inbounds i32, ptr [[G]], i64 [[TMP12]]
79 ; CHECK-NEXT: [[T10:%.*]] = load i32, ptr [[ARRAYIDX10]], align 4
80 ; CHECK-NEXT: [[ADD11:%.*]] = add nsw i32 [[ADD6]], [[T10]]
81 ; CHECK-NEXT: [[TMP13:%.*]] = extractelement <2 x i32> [[TMP10]], i64 1
82 ; CHECK-NEXT: [[TMP14:%.*]] = sext i32 [[TMP13]] to i64
83 ; CHECK-NEXT: [[ARRAYIDX15:%.*]] = getelementptr inbounds i32, ptr [[G]], i64 [[TMP14]]
84 ; CHECK-NEXT: [[T12:%.*]] = load i32, ptr [[ARRAYIDX15]], align 4
85 ; CHECK-NEXT: [[ADD16]] = add nsw i32 [[ADD11]], [[T12]]
86 ; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i32 [[INDVARS_IV]], 1
87 ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i32 [[INDVARS_IV_NEXT]], [[N]]
88 ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_COND_CLEANUP_LOOPEXIT]], label [[FOR_BODY]]
91 %cmp31 = icmp sgt i32 %n, 0
92 br i1 %cmp31, label %for.body.preheader, label %for.cond.cleanup
97 for.cond.cleanup.loopexit:
98 br label %for.cond.cleanup
101 %sum.0.lcssa = phi i32 [ 0, %entry ], [ %add16, %for.cond.cleanup.loopexit ]
105 %indvars.iv = phi i32 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
106 %sum.032 = phi i32 [ 0, %for.body.preheader ], [ %add16, %for.body ]
107 %t4 = shl nsw i32 %indvars.iv, 1
108 %t5 = add nsw i32 %t4, 0
109 %arrayidx = getelementptr inbounds i32, ptr %g, i32 %t5
110 %t6 = load i32, ptr %arrayidx, align 4
111 %add1 = add nsw i32 %t6, %sum.032
112 %t7 = add nsw i32 %t4, %x
113 %arrayidx5 = getelementptr inbounds i32, ptr %g, i32 %t7
114 %t8 = load i32, ptr %arrayidx5, align 4
115 %add6 = add nsw i32 %add1, %t8
116 %t9 = add nsw i32 %t4, %y
117 %arrayidx10 = getelementptr inbounds i32, ptr %g, i32 %t9
118 %t10 = load i32, ptr %arrayidx10, align 4
119 %add11 = add nsw i32 %add6, %t10
120 %t11 = add nsw i32 %t4, %z
121 %arrayidx15 = getelementptr inbounds i32, ptr %g, i32 %t11
122 %t12 = load i32, ptr %arrayidx15, align 4
123 %add16 = add nsw i32 %add11, %t12
124 %indvars.iv.next = add nuw nsw i32 %indvars.iv, 1
125 %exitcond = icmp eq i32 %indvars.iv.next , %n
126 br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body
129 ; YAML-LABEL: Function: getelementptr_2x32
131 ; YAML: Pass: slp-vectorizer
132 ; YAML: Name: VectorizedList
133 ; YAML: Function: getelementptr_2x32
135 ; YAML: - String: 'SLP vectorized with cost '
137 ; YAML-NEXT: - String: ' and with tree size '
138 ; YAML-NEXT: - TreeSize: '3'
140 define i32 @getelementptr_2x32(ptr nocapture readonly %g, i32 %n, i32 %x, i32 %y, i32 %z) {
141 ; CHECK-LABEL: @getelementptr_2x32(
143 ; CHECK-NEXT: [[CMP31:%.*]] = icmp sgt i32 [[N:%.*]], 0
144 ; CHECK-NEXT: br i1 [[CMP31]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_COND_CLEANUP:%.*]]
145 ; CHECK: for.body.preheader:
146 ; CHECK-NEXT: [[TMP0:%.*]] = insertelement <2 x i32> <i32 0, i32 poison>, i32 [[Y:%.*]], i64 1
147 ; CHECK-NEXT: br label [[FOR_BODY:%.*]]
148 ; CHECK: for.cond.cleanup.loopexit:
149 ; CHECK-NEXT: br label [[FOR_COND_CLEANUP]]
150 ; CHECK: for.cond.cleanup:
151 ; CHECK-NEXT: [[SUM_0_LCSSA:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[OP_RDX:%.*]], [[FOR_COND_CLEANUP_LOOPEXIT:%.*]] ]
152 ; CHECK-NEXT: ret i32 [[SUM_0_LCSSA]]
154 ; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i32 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
155 ; CHECK-NEXT: [[SUM_032:%.*]] = phi i32 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[OP_RDX]], [[FOR_BODY]] ]
156 ; CHECK-NEXT: [[T4:%.*]] = shl nuw nsw i32 [[INDVARS_IV]], 1
157 ; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x i32> poison, i32 [[T4]], i64 0
158 ; CHECK-NEXT: [[TMP2:%.*]] = shufflevector <2 x i32> [[TMP1]], <2 x i32> poison, <2 x i32> zeroinitializer
159 ; CHECK-NEXT: [[TMP3:%.*]] = add nsw <2 x i32> [[TMP2]], [[TMP0]]
160 ; CHECK-NEXT: [[TMP4:%.*]] = extractelement <2 x i32> [[TMP3]], i64 0
161 ; CHECK-NEXT: [[TMP5:%.*]] = zext nneg i32 [[TMP4]] to i64
162 ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw i32, ptr [[G:%.*]], i64 [[TMP5]]
163 ; CHECK-NEXT: [[TMP6:%.*]] = load <2 x i32>, ptr [[ARRAYIDX]], align 4
164 ; CHECK-NEXT: [[TMP7:%.*]] = extractelement <2 x i32> [[TMP3]], i64 1
165 ; CHECK-NEXT: [[TMP8:%.*]] = sext i32 [[TMP7]] to i64
166 ; CHECK-NEXT: [[ARRAYIDX10:%.*]] = getelementptr inbounds i32, ptr [[G]], i64 [[TMP8]]
167 ; CHECK-NEXT: [[T10:%.*]] = load i32, ptr [[ARRAYIDX10]], align 4
168 ; CHECK-NEXT: [[T11:%.*]] = add nsw i32 [[T4]], [[Z:%.*]]
169 ; CHECK-NEXT: [[TMP9:%.*]] = sext i32 [[T11]] to i64
170 ; CHECK-NEXT: [[ARRAYIDX15:%.*]] = getelementptr inbounds i32, ptr [[G]], i64 [[TMP9]]
171 ; CHECK-NEXT: [[T12:%.*]] = load i32, ptr [[ARRAYIDX15]], align 4
172 ; CHECK-NEXT: [[TMP10:%.*]] = insertelement <4 x i32> poison, i32 [[T10]], i64 2
173 ; CHECK-NEXT: [[TMP11:%.*]] = insertelement <4 x i32> [[TMP10]], i32 [[T12]], i64 3
174 ; CHECK-NEXT: [[TMP12:%.*]] = shufflevector <2 x i32> [[TMP6]], <2 x i32> poison, <4 x i32> <i32 0, i32 1, i32 poison, i32 poison>
175 ; CHECK-NEXT: [[TMP13:%.*]] = shufflevector <4 x i32> [[TMP12]], <4 x i32> [[TMP11]], <4 x i32> <i32 0, i32 1, i32 6, i32 7>
176 ; CHECK-NEXT: [[TMP14:%.*]] = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> [[TMP13]])
177 ; CHECK-NEXT: [[OP_RDX]] = add i32 [[TMP14]], [[SUM_032]]
178 ; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i32 [[INDVARS_IV]], 1
179 ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i32 [[INDVARS_IV_NEXT]], [[N]]
180 ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_COND_CLEANUP_LOOPEXIT]], label [[FOR_BODY]]
183 %cmp31 = icmp sgt i32 %n, 0
184 br i1 %cmp31, label %for.body.preheader, label %for.cond.cleanup
189 for.cond.cleanup.loopexit:
190 br label %for.cond.cleanup
193 %sum.0.lcssa = phi i32 [ 0, %entry ], [ %add16, %for.cond.cleanup.loopexit ]
197 %indvars.iv = phi i32 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
198 %sum.032 = phi i32 [ 0, %for.body.preheader ], [ %add16, %for.body ]
199 %t4 = shl nsw i32 %indvars.iv, 1
200 %t5 = add nsw i32 %t4, 0
201 %arrayidx = getelementptr inbounds i32, ptr %g, i32 %t5
202 %t6 = load i32, ptr %arrayidx, align 4
203 %add1 = add nsw i32 %t6, %sum.032
204 %t7 = add nsw i32 %t4, 1
205 %arrayidx5 = getelementptr inbounds i32, ptr %g, i32 %t7
206 %t8 = load i32, ptr %arrayidx5, align 4
207 %add6 = add nsw i32 %add1, %t8
208 %t9 = add nsw i32 %t4, %y
209 %arrayidx10 = getelementptr inbounds i32, ptr %g, i32 %t9
210 %t10 = load i32, ptr %arrayidx10, align 4
211 %add11 = add nsw i32 %add6, %t10
212 %t11 = add nsw i32 %t4, %z
213 %arrayidx15 = getelementptr inbounds i32, ptr %g, i32 %t11
214 %t12 = load i32, ptr %arrayidx15, align 4
215 %add16 = add nsw i32 %add11, %t12
216 %indvars.iv.next = add nuw nsw i32 %indvars.iv, 1
217 %exitcond = icmp eq i32 %indvars.iv.next , %n
218 br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body