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; RUN: opt < %s -loop-vectorize -force-target-instruction-cost=0 -force-vector-width=2 -force-vector-interleave=1 -instcombine -S | FileCheck %s
; CHECK-LABEL: @copy(
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i64, i64* %a, i64 [[INDEX]]
; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds i64, i64* %b, i64 [[INDEX]]
; CHECK-NEXT: [[TMP4:%.*]] = bitcast i64* [[TMP3]] to <2 x i64>*
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <2 x i64>, <2 x i64>* [[TMP4]], align 8
; CHECK-NEXT: [[TMP5:%.*]] = bitcast i64* [[TMP2]] to <2 x i64>*
; CHECK-NEXT: store <2 x i64> [[WIDE_LOAD]], <2 x i64>* [[TMP5]], align 8
; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 2
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
;
define void @copy(i64* %a, i64* %b, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
%tmp0 = getelementptr inbounds i64, i64* %a, i64 %i
%tmp1 = getelementptr inbounds i64, i64* %b, i64 %i
%tmp3 = load i64, i64* %tmp1, align 8
store i64 %tmp3, i64* %tmp0, align 8
%i.next = add nuw nsw i64 %i, 1
%cond = icmp slt i64 %i.next, %n
br i1 %cond, label %for.body, label %for.end
for.end:
ret void
}
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