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; RUN: opt -passes=loop-idiom -S <%s | FileCheck %s
define void @memcpy_fixed_vec(ptr noalias %a, ptr noalias %b) local_unnamed_addr #1 {
; CHECK-LABEL: @memcpy_fixed_vec(
; CHECK: entry:
; CHECK: memcpy
; CHECK: vector.body
entry:
br label %vector.body
vector.body: ; preds = %vector.body, %entry
%index = phi i64 [ 0, %entry ], [ %index.next, %vector.body ]
%0 = getelementptr inbounds i64, ptr %a, i64 %index
%wide.load = load <2 x i64>, ptr %0, align 8
%1 = getelementptr inbounds i64, ptr %b, i64 %index
store <2 x i64> %wide.load, ptr %1, align 8
%index.next = add nuw nsw i64 %index, 2
%2 = icmp eq i64 %index.next, 1024
br i1 %2, label %for.cond.cleanup, label %vector.body
for.cond.cleanup: ; preds = %vector.body
ret void
}
define void @memcpy_scalable_vec(ptr noalias %a, ptr noalias %b) local_unnamed_addr #1 {
; CHECK-LABEL: @memcpy_scalable_vec(
; CHECK: entry:
; CHECK-NOT: memcpy
; CHECK: vector.body
entry:
br label %vector.body
vector.body: ; preds = %vector.body, %entry
%index = phi i64 [ 0, %entry ], [ %index.next, %vector.body ]
%0 = getelementptr inbounds <vscale x 2 x i64>, ptr %a, i64 %index
%wide.load = load <vscale x 2 x i64>, ptr %0, align 16
%1 = getelementptr inbounds <vscale x 2 x i64>, ptr %b, i64 %index
store <vscale x 2 x i64> %wide.load, ptr %1, align 16
%index.next = add nuw nsw i64 %index, 1
%2 = icmp eq i64 %index.next, 1024
br i1 %2, label %for.cond.cleanup, label %vector.body
for.cond.cleanup: ; preds = %vector.body
ret void
}
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