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1; RUN: opt < %s -passes=loop-vectorize,dce,instcombine -force-vector-interleave=1 -force-vector-width=4 -S | FileCheck %s2 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@a = common global [2048 x i32] zeroinitializer, align 166@b = common global [2048 x i32] zeroinitializer, align 167@c = common global [2048 x i32] zeroinitializer, align 168 9;CHECK-LABEL: @example1(10;CHECK: load <4 x i32>11;CHECK: ret void12define void @example1() nounwind uwtable ssp {13 br label %114 15; <label>:1 ; preds = %1, %016 %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]17 %2 = getelementptr inbounds [2048 x i32], ptr @b, i64 0, i64 %indvars.iv18 %3 = load i32, ptr %2, align 419 %4 = getelementptr inbounds [2048 x i32], ptr @c, i64 0, i64 %indvars.iv20 %5 = load i32, ptr %4, align 421 %6 = add nsw i32 %5, %322 %7 = getelementptr inbounds [2048 x i32], ptr @a, i64 0, i64 %indvars.iv23 store i32 %6, ptr %7, align 424 %indvars.iv.next = add i64 %indvars.iv, 125 %lftr.wideiv = trunc i64 %indvars.iv.next to i3226 %exitcond = icmp eq i32 %lftr.wideiv, 8 ; <----- A really small trip count27 br i1 %exitcond, label %8, label %1 ; w/o scalar iteration overhead.28 29; <label>:8 ; preds = %130 ret void31}32 33;CHECK-LABEL: @bound1(34;CHECK-NOT: load <4 x i32>35;CHECK: ret void36define void @bound1(i32 %k) nounwind uwtable ssp {37 br label %138 39; <label>:1 ; preds = %1, %040 %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]41 %2 = getelementptr inbounds [2048 x i32], ptr @b, i64 0, i64 %indvars.iv42 %3 = load i32, ptr %2, align 443 %4 = getelementptr inbounds [2048 x i32], ptr @c, i64 0, i64 %indvars.iv44 %5 = load i32, ptr %4, align 445 %6 = add nsw i32 %5, %346 %7 = getelementptr inbounds [2048 x i32], ptr @a, i64 0, i64 %indvars.iv47 store i32 %6, ptr %7, align 448 %indvars.iv.next = add i64 %indvars.iv, 149 %lftr.wideiv = trunc i64 %indvars.iv.next to i3250 %large = icmp sge i32 %lftr.wideiv, 851 %exitcond = icmp eq i32 %lftr.wideiv, %k52 %realexit = or i1 %large, %exitcond53 br i1 %realexit, label %8, label %154 55; <label>:8 ; preds = %156 ret void57}58