1 ; RUN: opt -loop-idiom -S <%s | FileCheck %s
3 define void @memcpy_fixed_vec(i64* noalias %a, i64* noalias %b) local_unnamed_addr #1 {
4 ; CHECK-LABEL: @memcpy_fixed_vec(
11 vector.body: ; preds = %vector.body, %entry
12 %index = phi i64 [ 0, %entry ], [ %index.next, %vector.body ]
13 %0 = getelementptr inbounds i64, i64* %a, i64 %index
14 %1 = bitcast i64* %0 to <2 x i64>*
15 %wide.load = load <2 x i64>, <2 x i64>* %1, align 8
16 %2 = getelementptr inbounds i64, i64* %b, i64 %index
17 %3 = bitcast i64* %2 to <2 x i64>*
18 store <2 x i64> %wide.load, <2 x i64>* %3, align 8
19 %index.next = add nuw nsw i64 %index, 2
20 %4 = icmp eq i64 %index.next, 1024
21 br i1 %4, label %for.cond.cleanup, label %vector.body
23 for.cond.cleanup: ; preds = %vector.body
27 define void @memcpy_scalable_vec(i64* noalias %a, i64* noalias %b) local_unnamed_addr #1 {
28 ; CHECK-LABEL: @memcpy_scalable_vec(
35 vector.body: ; preds = %vector.body, %entry
36 %index = phi i64 [ 0, %entry ], [ %index.next, %vector.body ]
37 %0 = bitcast i64* %a to <vscale x 2 x i64>*
38 %1 = getelementptr inbounds <vscale x 2 x i64>, <vscale x 2 x i64>* %0, i64 %index
39 %wide.load = load <vscale x 2 x i64>, <vscale x 2 x i64>* %1, align 16
40 %2 = bitcast i64* %b to <vscale x 2 x i64>*
41 %3 = getelementptr inbounds <vscale x 2 x i64>, <vscale x 2 x i64>* %2, i64 %index
42 store <vscale x 2 x i64> %wide.load, <vscale x 2 x i64>* %3, align 16
43 %index.next = add nuw nsw i64 %index, 1
44 %4 = icmp eq i64 %index.next, 1024
45 br i1 %4, label %for.cond.cleanup, label %vector.body
47 for.cond.cleanup: ; preds = %vector.body