1; RUN: opt < %s -passes=loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -S | FileCheck %s 2 3target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 4 5@array = common global [1024 x i32] zeroinitializer, align 16 6 7define void @array_at_plus_one(i32 %n) { 8; CHECK-LABEL: @array_at_plus_one( 9; CHECK: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ] 10; CHECK: [[VEC_IV_TRUNC:%.+]] = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, %vector.ph ], [ [[VEC_IV_TRUNC_NEXT:%.+]], %vector.body ] 11; CHECK: [[T1:%.+]] = add i64 %index, 0 12; CHECK: [[T2:%.+]] = add nsw i64 [[T1]], 12 13; CHECK-NEXT: [[GEP:%.+]] = getelementptr inbounds [1024 x i32], ptr @array, i64 0, i64 [[T2]] 14; CHECK-NEXT: [[GEP0:%.+]] = getelementptr inbounds i32, ptr [[GEP]], i32 0 15; CHECK-NEXT: store <4 x i32> [[VEC_IV_TRUNC]], ptr [[GEP0]] 16; CHECK: [[VEC_IV_TRUNC_NEXT]] = add <4 x i32> [[VEC_IV_TRUNC]], splat (i32 4) 17; CHECK: ret void 18; 19entry: 20 br label %loop 21 22loop: 23 %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ] 24 %iv.plus.12 = add nsw i64 %iv, 12 25 %gep = getelementptr inbounds [1024 x i32], ptr @array, i64 0, i64 %iv.plus.12 26 %iv.trunc = trunc i64 %iv to i32 27 store i32 %iv.trunc, ptr %gep, align 4 28 %iv.next = add i64 %iv, 1 29 %lftr.wideiv = trunc i64 %iv.next to i32 30 %exitcond = icmp eq i32 %lftr.wideiv, %n 31 br i1 %exitcond, label %exit, label %loop 32 33exit: 34 ret void 35} 36