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; REQUIRES: asserts
; RUN: opt < %s -force-vector-width=2 -force-vector-interleave=1 -passes=loop-vectorize -S --debug-only=loop-vectorize 2>&1 | FileCheck %s
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
target triple = "aarch64--linux-gnu"
%pair = type { i8, i8 }
; CHECK-LABEL: test
; CHECK: Found an estimated cost of 16 for VF 2 For instruction: {{.*}} load i8
; CHECK: Found an estimated cost of 0 for VF 2 For instruction: {{.*}} load i8
; CHECK-LABEL: entry:
; CHECK-LABEL: vector.body:
; CHECK: [[LOAD1:%.*]] = load i8
; CHECK: [[LOAD2:%.*]] = load i8
; CHECK: [[INSERT:%.*]] = insertelement <2 x i8> poison, i8 [[LOAD1]], i32 0
; CHECK: insertelement <2 x i8> [[INSERT]], i8 [[LOAD2]], i32 1
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
define void @test(ptr %p, ptr %q, i64 %n) {
entry:
br label %for.body
for.body:
%i = phi i64 [ 0, %entry ], [ %i.next, %for.body ]
%tmp0 = getelementptr %pair, ptr %p, i64 %i, i32 0
%tmp1 = load i8, ptr %tmp0, align 1
%tmp2 = getelementptr %pair, ptr %p, i64 %i, i32 1
%tmp3 = load i8, ptr %tmp2, align 1
%add = add i8 %tmp1, %tmp3
%qi = getelementptr i8, ptr %q, i64 %i
store i8 %add, ptr %qi, align 1
%i.next = add nuw nsw i64 %i, 1
%cond = icmp eq i64 %i.next, %n
br i1 %cond, label %for.end, label %for.body
for.end:
ret void
}
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