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; RUN: opt < %s -force-vector-width=4 -force-vector-interleave=2 -passes=loop-vectorize,instcombine -S | FileCheck %s
; RUN: opt < %s -force-vector-width=4 -force-vector-interleave=2 -passes=loop-vectorize -S | FileCheck %s --check-prefix=NO-IC
target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
; CHECK-LABEL: @scalar_after_vectorization_0
;
; CHECK: vector.body:
; CHECK: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
; CHECK: %offset.idx = or disjoint i64 %index, 1
; CHECK: %[[T2:.+]] = add nuw nsw i64 %offset.idx, %tmp0
; CHECK: %[[T3:.+]] = sub nsw i64 %[[T2]], %x
; CHECK: %[[T4:.+]] = getelementptr inbounds i32, ptr %a, i64 %[[T3]]
; CHECK: %[[T6:.+]] = getelementptr inbounds i8, ptr %[[T4]], i64 16
; CHECK: load <4 x i32>, ptr %[[T4]], align 4
; CHECK: load <4 x i32>, ptr %[[T6]], align 4
; CHECK: br {{.*}}, label %middle.block, label %vector.body
;
; NO-IC-LABEL: @scalar_after_vectorization_0
;
; NO-IC: vector.body:
; NO-IC: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
; NO-IC: %offset.idx = add i64 1, %index
; NO-IC: %[[T2:.+]] = add i64 %offset.idx, 0
; NO-IC: %[[T3:.+]] = add i64 %offset.idx, 4
; NO-IC: %[[T4:.+]] = add nuw nsw i64 %[[T2]], %tmp0
; NO-IC: %[[T5:.+]] = add nuw nsw i64 %[[T3]], %tmp0
; NO-IC: %[[T6:.+]] = sub nsw i64 %[[T4]], %x
; NO-IC: %[[T7:.+]] = sub nsw i64 %[[T5]], %x
; NO-IC: %[[T8:.+]] = getelementptr inbounds i32, ptr %a, i64 %[[T6]]
; NO-IC: %[[T9:.+]] = getelementptr inbounds i32, ptr %a, i64 %[[T7]]
; NO-IC: %[[T10:.+]] = getelementptr inbounds i32, ptr %[[T8]], i32 0
; NO-IC: %[[T12:.+]] = getelementptr inbounds i32, ptr %[[T8]], i32 4
; NO-IC: load <4 x i32>, ptr %[[T10]], align 4
; NO-IC: load <4 x i32>, ptr %[[T12]], align 4
; NO-IC: br {{.*}}, label %middle.block, label %vector.body
;
define void @scalar_after_vectorization_0(ptr noalias %a, ptr noalias %b, i64 %x, i64 %y) {
outer.ph:
br label %outer.body
outer.body:
%i = phi i64 [ 1, %outer.ph ], [ %i.next, %inner.end ]
%tmp0 = mul nuw nsw i64 %i, %x
br label %inner.ph
inner.ph:
br label %inner.body
inner.body:
%j = phi i64 [ 1, %inner.ph ], [ %j.next, %inner.body ]
%tmp1 = add nuw nsw i64 %j, %tmp0
%tmp2 = sub nsw i64 %tmp1, %x
%tmp3 = getelementptr inbounds i32, ptr %a, i64 %tmp2
%tmp4 = load i32, ptr %tmp3, align 4
%tmp5 = getelementptr inbounds i32, ptr %b, i64 %tmp1
store i32 %tmp4, ptr %tmp5, align 4
%j.next = add i64 %j, 1
%cond.j = icmp slt i64 %j.next, %y
br i1 %cond.j, label %inner.body, label %inner.end
inner.end:
%i.next = add i64 %i, 1
%cond.i = icmp slt i64 %i.next, %y
br i1 %cond.i, label %outer.body, label %outer.end
outer.end:
ret void
}
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