1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
2 ; RUN: llc -mtriple aarch64-none-linux-gnu < %s | FileCheck %s
4 define void @foo(i32 noundef %limit, ptr %out, ptr %y) {
6 ; CHECK: // %bb.0: // %entry
7 ; CHECK-NEXT: // kill: def $w0 killed $w0 def $x0
8 ; CHECK-NEXT: cmp w0, #1
9 ; CHECK-NEXT: b.lt .LBB0_10
10 ; CHECK-NEXT: // %bb.1: // %for.cond1.preheader.us.preheader
11 ; CHECK-NEXT: mov w10, w0
12 ; CHECK-NEXT: ubfiz x11, x0, #2, #32
13 ; CHECK-NEXT: mov x8, xzr
14 ; CHECK-NEXT: mov x9, xzr
15 ; CHECK-NEXT: and x12, x10, #0xfffffff0
16 ; CHECK-NEXT: add x13, x1, #32
17 ; CHECK-NEXT: add x14, x2, #16
18 ; CHECK-NEXT: b .LBB0_3
19 ; CHECK-NEXT: .LBB0_2: // %for.cond1.for.cond.cleanup3_crit_edge.us
20 ; CHECK-NEXT: // in Loop: Header=BB0_3 Depth=1
21 ; CHECK-NEXT: add x9, x9, #1
22 ; CHECK-NEXT: add x13, x13, x11
23 ; CHECK-NEXT: add x8, x8, x10
24 ; CHECK-NEXT: cmp x9, x10
25 ; CHECK-NEXT: b.eq .LBB0_10
26 ; CHECK-NEXT: .LBB0_3: // %for.cond1.preheader.us
27 ; CHECK-NEXT: // =>This Loop Header: Depth=1
28 ; CHECK-NEXT: // Child Loop BB0_6 Depth 2
29 ; CHECK-NEXT: // Child Loop BB0_9 Depth 2
30 ; CHECK-NEXT: ldrsh w15, [x2, x9, lsl #1]
31 ; CHECK-NEXT: cmp w0, #16
32 ; CHECK-NEXT: b.hs .LBB0_5
33 ; CHECK-NEXT: // %bb.4: // in Loop: Header=BB0_3 Depth=1
34 ; CHECK-NEXT: mov x18, xzr
35 ; CHECK-NEXT: b .LBB0_8
36 ; CHECK-NEXT: .LBB0_5: // %vector.ph
37 ; CHECK-NEXT: // in Loop: Header=BB0_3 Depth=1
38 ; CHECK-NEXT: dup v0.8h, w15
39 ; CHECK-NEXT: mov x16, x14
40 ; CHECK-NEXT: mov x17, x13
41 ; CHECK-NEXT: mov x18, x12
42 ; CHECK-NEXT: .LBB0_6: // %vector.body
43 ; CHECK-NEXT: // Parent Loop BB0_3 Depth=1
44 ; CHECK-NEXT: // => This Inner Loop Header: Depth=2
45 ; CHECK-NEXT: ldp q1, q4, [x16, #-16]
46 ; CHECK-NEXT: subs x18, x18, #16
47 ; CHECK-NEXT: ldp q3, q2, [x17, #-32]
48 ; CHECK-NEXT: add x16, x16, #32
49 ; CHECK-NEXT: ldp q6, q5, [x17]
50 ; CHECK-NEXT: smlal2 v2.4s, v0.8h, v1.8h
51 ; CHECK-NEXT: smlal v3.4s, v0.4h, v1.4h
52 ; CHECK-NEXT: smlal2 v5.4s, v0.8h, v4.8h
53 ; CHECK-NEXT: smlal v6.4s, v0.4h, v4.4h
54 ; CHECK-NEXT: stp q3, q2, [x17, #-32]
55 ; CHECK-NEXT: stp q6, q5, [x17], #64
56 ; CHECK-NEXT: b.ne .LBB0_6
57 ; CHECK-NEXT: // %bb.7: // %middle.block
58 ; CHECK-NEXT: // in Loop: Header=BB0_3 Depth=1
59 ; CHECK-NEXT: cmp x12, x10
60 ; CHECK-NEXT: mov x18, x12
61 ; CHECK-NEXT: b.eq .LBB0_2
62 ; CHECK-NEXT: .LBB0_8: // %for.body4.us.preheader
63 ; CHECK-NEXT: // in Loop: Header=BB0_3 Depth=1
64 ; CHECK-NEXT: add x16, x18, x8
65 ; CHECK-NEXT: add x17, x2, x18, lsl #1
66 ; CHECK-NEXT: sub x18, x10, x18
67 ; CHECK-NEXT: add x16, x1, x16, lsl #2
68 ; CHECK-NEXT: .LBB0_9: // %for.body4.us
69 ; CHECK-NEXT: // Parent Loop BB0_3 Depth=1
70 ; CHECK-NEXT: // => This Inner Loop Header: Depth=2
71 ; CHECK-NEXT: ldrsh w3, [x17], #2
72 ; CHECK-NEXT: ldr w4, [x16]
73 ; CHECK-NEXT: subs x18, x18, #1
74 ; CHECK-NEXT: madd w3, w3, w15, w4
75 ; CHECK-NEXT: str w3, [x16], #4
76 ; CHECK-NEXT: b.ne .LBB0_9
77 ; CHECK-NEXT: b .LBB0_2
78 ; CHECK-NEXT: .LBB0_10: // %for.cond.cleanup
81 %cmp26 = icmp sgt i32 %limit, 0
82 br i1 %cmp26, label %for.cond1.preheader.us.preheader, label %for.cond.cleanup
84 for.cond1.preheader.us.preheader: ; preds = %entry
85 %0 = zext i32 %limit to i64
86 %wide.trip.count34 = zext i32 %limit to i64
87 %min.iters.check = icmp ult i32 %limit, 16
88 %n.vec = and i64 %wide.trip.count34, 4294967280
89 %cmp.n = icmp eq i64 %n.vec, %wide.trip.count34
90 br label %for.cond1.preheader.us
92 for.cond1.preheader.us: ; preds = %for.cond1.preheader.us.preheader, %for.cond1.for.cond.cleanup3_crit_edge.us
93 %indvars.iv30 = phi i64 [ 0, %for.cond1.preheader.us.preheader ], [ %indvars.iv.next31, %for.cond1.for.cond.cleanup3_crit_edge.us ]
94 %arrayidx.us = getelementptr inbounds i16, ptr %y, i64 %indvars.iv30
95 %1 = load i16, ptr %arrayidx.us, align 2
96 %conv.us = sext i16 %1 to i32
97 %2 = mul nsw i64 %indvars.iv30, %0
98 br i1 %min.iters.check, label %for.body4.us.preheader, label %vector.ph
100 vector.ph: ; preds = %for.cond1.preheader.us
101 %broadcast.splatinsert = insertelement <8 x i32> poison, i32 %conv.us, i64 0
102 %broadcast.splat = shufflevector <8 x i32> %broadcast.splatinsert, <8 x i32> poison, <8 x i32> zeroinitializer
103 %broadcast.splatinsert37 = insertelement <8 x i32> poison, i32 %conv.us, i64 0
104 %broadcast.splat38 = shufflevector <8 x i32> %broadcast.splatinsert37, <8 x i32> poison, <8 x i32> zeroinitializer
105 br label %vector.body
107 vector.body: ; preds = %vector.body, %vector.ph
108 %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
109 %3 = getelementptr inbounds i16, ptr %y, i64 %index
110 %wide.load = load <8 x i16>, ptr %3, align 2
111 %4 = getelementptr inbounds i16, ptr %3, i64 8
112 %wide.load36 = load <8 x i16>, ptr %4, align 2
113 %5 = sext <8 x i16> %wide.load to <8 x i32>
114 %6 = sext <8 x i16> %wide.load36 to <8 x i32>
115 %7 = mul nsw <8 x i32> %broadcast.splat, %5
116 %8 = mul nsw <8 x i32> %broadcast.splat38, %6
117 %9 = add nuw nsw i64 %index, %2
118 %10 = getelementptr inbounds i32, ptr %out, i64 %9
119 %wide.load39 = load <8 x i32>, ptr %10, align 4
120 %11 = getelementptr inbounds i32, ptr %10, i64 8
121 %wide.load40 = load <8 x i32>, ptr %11, align 4
122 %12 = add nsw <8 x i32> %7, %wide.load39
123 %13 = add nsw <8 x i32> %8, %wide.load40
124 store <8 x i32> %12, ptr %10, align 4
125 store <8 x i32> %13, ptr %11, align 4
126 %index.next = add nuw i64 %index, 16
127 %14 = icmp eq i64 %index.next, %n.vec
128 br i1 %14, label %middle.block, label %vector.body
130 middle.block: ; preds = %vector.body
131 br i1 %cmp.n, label %for.cond1.for.cond.cleanup3_crit_edge.us, label %for.body4.us.preheader
133 for.body4.us.preheader: ; preds = %for.cond1.preheader.us, %middle.block
134 %indvars.iv.ph = phi i64 [ 0, %for.cond1.preheader.us ], [ %n.vec, %middle.block ]
135 br label %for.body4.us
137 for.body4.us: ; preds = %for.body4.us.preheader, %for.body4.us
138 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body4.us ], [ %indvars.iv.ph, %for.body4.us.preheader ]
139 %arrayidx6.us = getelementptr inbounds i16, ptr %y, i64 %indvars.iv
140 %15 = load i16, ptr %arrayidx6.us, align 2
141 %conv7.us = sext i16 %15 to i32
142 %mul.us = mul nsw i32 %conv7.us, %conv.us
143 %16 = add nuw nsw i64 %indvars.iv, %2
144 %arrayidx10.us = getelementptr inbounds i32, ptr %out, i64 %16
145 %17 = load i32, ptr %arrayidx10.us, align 4
146 %add11.us = add nsw i32 %mul.us, %17
147 store i32 %add11.us, ptr %arrayidx10.us, align 4
148 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
149 %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count34
150 br i1 %exitcond.not, label %for.cond1.for.cond.cleanup3_crit_edge.us, label %for.body4.us
152 for.cond1.for.cond.cleanup3_crit_edge.us: ; preds = %for.body4.us, %middle.block
153 %indvars.iv.next31 = add nuw nsw i64 %indvars.iv30, 1
154 %exitcond35.not = icmp eq i64 %indvars.iv.next31, %wide.trip.count34
155 br i1 %exitcond35.not, label %for.cond.cleanup, label %for.cond1.preheader.us
157 for.cond.cleanup: ; preds = %for.cond1.for.cond.cleanup3_crit_edge.us, %entry