1 ; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s 2 3 target 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 target triple = "x86_64-apple-macosx10.8.0" 5 6 @b = common global [2048 x i32] zeroinitializer, align 16 7 @c = common global [2048 x i32] zeroinitializer, align 16 8 @a = common global [2048 x i32] zeroinitializer, align 16 9 10 ;CHECK-LABEL: @example1( 11 ;CHECK: shl i32 12 ;CHECK: zext i32 13 ;CHECK: load <4 x i32> 14 ;CHECK: add nsw <4 x i32> 15 ;CHECK: store <4 x i32> 16 ;CHECK: ret void 17 define void @example1(i32 %n) nounwind uwtable ssp { 18 %n4 = shl i32 %n, 2 19 br label %1 20 21 ; <label>:1 ; preds = %1, %0 22 %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ] 23 %2 = getelementptr inbounds [2048 x i32], [2048 x i32]* @b, i64 0, i64 %indvars.iv 24 %3 = load i32, i32* %2, align 4 25 %4 = getelementptr inbounds [2048 x i32], [2048 x i32]* @c, i64 0, i64 %indvars.iv 26 %5 = load i32, i32* %4, align 4 27 %6 = add nsw i32 %5, %3 28 %7 = getelementptr inbounds [2048 x i32], [2048 x i32]* @a, i64 0, i64 %indvars.iv 29 store i32 %6, i32* %7, align 4 30 %indvars.iv.next = add i64 %indvars.iv, 1 31 %lftr.wideiv = trunc i64 %indvars.iv.next to i32 32 %exitcond = icmp eq i32 %lftr.wideiv, %n4 33 br i1 %exitcond, label %8, label %1 34 35 ; <label>:8 ; preds = %1 36 ret void 37 } 38 39
