1 ; extern int arr[8][8];
8 ; #pragma clang loop vectorize(enable) vectorize_width(4)
9 ; for (i1 = 0; i1 < 8; i1++) {
11 ; for (i2 = 0; i2 < 8; i2++)
12 ; arr[i2][i1] = i1 + n;
16 ; RUN: opt -S -passes=loop-vectorize -enable-vplan-native-path -verify-loop-info -verify-dom-info < %s | FileCheck %s
17 ; CHECK-LABEL: vector.ph:
18 ; CHECK: %[[SplatVal:.*]] = insertelement <4 x i32> poison, i32 %n, i64 0
19 ; CHECK: %[[Splat:.*]] = shufflevector <4 x i32> %[[SplatVal]], <4 x i32> poison, <4 x i32> zeroinitializer
21 ; CHECK-LABEL: vector.body:
22 ; CHECK: %[[Ind:.*]] = phi i64 [ 0, %vector.ph ], [ %[[IndNext:.*]], %[[ForInc:.*]] ]
23 ; CHECK: %[[VecInd:.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %vector.ph ], [ %[[VecIndNext:.*]], %[[ForInc]] ]
24 ; CHECK: %[[AAddr:.*]] = getelementptr inbounds [8 x i32], ptr @arr2, i64 0, <4 x i64> %[[VecInd]]
25 ; CHECK: %[[VecIndTr:.*]] = trunc <4 x i64> %[[VecInd]] to <4 x i32>
26 ; CHECK: call void @llvm.masked.scatter.v4i32.v4p0(<4 x i32> %[[VecIndTr]], <4 x ptr> %[[AAddr]], i32 4, <4 x i1> splat (i1 true))
27 ; CHECK: %[[VecIndTr2:.*]] = trunc <4 x i64> %[[VecInd]] to <4 x i32>
28 ; CHECK: %[[StoreVal:.*]] = add nsw <4 x i32> %[[VecIndTr2]], %[[Splat]]
29 ; CHECK: br label %[[InnerLoop:.+]]
31 ; CHECK: [[InnerLoop]]:
32 ; CHECK: %[[InnerPhi:.*]] = phi <4 x i64> [ zeroinitializer, %vector.body ], [ %[[InnerPhiNext:.*]], %[[InnerLoop]] ]
33 ; CHECK: %[[AAddr2:.*]] = getelementptr inbounds [8 x [8 x i32]], ptr @arr, i64 0, <4 x i64> %[[InnerPhi]], <4 x i64> %[[VecInd]]
34 ; CHECK: call void @llvm.masked.scatter.v4i32.v4p0(<4 x i32> %[[StoreVal]], <4 x ptr> %[[AAddr2]], i32 4, <4 x i1> splat (i1 true))
35 ; CHECK: %[[InnerPhiNext]] = add nuw nsw <4 x i64> %[[InnerPhi]], splat (i64 1)
36 ; CHECK: %[[VecCond:.*]] = icmp eq <4 x i64> %[[InnerPhiNext]], splat (i64 8)
37 ; CHECK: %[[InnerCond:.*]] = extractelement <4 x i1> %[[VecCond]], i32 0
38 ; CHECK: br i1 %[[InnerCond]], label %[[ForInc]], label %[[InnerLoop]]
41 ; CHECK: %[[IndNext]] = add nuw i64 %[[Ind]], 4
42 ; CHECK: %[[VecIndNext]] = add <4 x i64> %[[VecInd]], splat (i64 4)
43 ; CHECK: %[[Cmp:.*]] = icmp eq i64 %[[IndNext]], 8
44 ; CHECK: br i1 %[[Cmp]], label %middle.block, label %vector.body
46 @arr2 = external global [8 x i32], align 16
47 @arr = external global [8 x [8 x i32]], align 16
49 ; Function Attrs: norecurse nounwind uwtable
50 define void @foo(i32 %n) {
54 for.body: ; preds = %for.inc8, %entry
55 %indvars.iv21 = phi i64 [ 0, %entry ], [ %indvars.iv.next22, %for.inc8 ]
56 %arrayidx = getelementptr inbounds [8 x i32], ptr @arr2, i64 0, i64 %indvars.iv21
57 %0 = trunc i64 %indvars.iv21 to i32
58 store i32 %0, ptr %arrayidx, align 4
59 %1 = trunc i64 %indvars.iv21 to i32
60 %add = add nsw i32 %1, %n
63 for.body3: ; preds = %for.body3, %for.body
64 %indvars.iv = phi i64 [ 0, %for.body ], [ %indvars.iv.next, %for.body3 ]
65 %arrayidx7 = getelementptr inbounds [8 x [8 x i32]], ptr @arr, i64 0, i64 %indvars.iv, i64 %indvars.iv21
66 store i32 %add, ptr %arrayidx7, align 4
67 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
68 %exitcond = icmp eq i64 %indvars.iv.next, 8
69 br i1 %exitcond, label %for.inc8, label %for.body3
71 for.inc8: ; preds = %for.body3
72 %indvars.iv.next22 = add nuw nsw i64 %indvars.iv21, 1
73 %exitcond23 = icmp eq i64 %indvars.iv.next22, 8
74 br i1 %exitcond23, label %for.end10, label %for.body, !llvm.loop !1
76 for.end10: ; preds = %for.inc8
80 !1 = distinct !{!1, !2, !3}
81 !2 = !{!"llvm.loop.vectorize.width", i32 4}
82 !3 = !{!"llvm.loop.vectorize.enable", i1 true}