1 ; RUN: opt < %s -loop-vectorize -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7 -dce -instcombine -licm -S | FileCheck %s
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"
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
12 ;CHECK: load <4 x i32>
13 ;CHECK: add nsw <4 x i32>
14 ;CHECK: store <4 x i32>
16 define void @example1() nounwind uwtable ssp {
19 ; <label>:1 ; preds = %1, %0
20 %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]
21 %2 = getelementptr inbounds [2048 x i32]* @b, i64 0, i64 %indvars.iv
22 %3 = load i32* %2, align 4
23 %4 = getelementptr inbounds [2048 x i32]* @c, i64 0, i64 %indvars.iv
24 %5 = load i32* %4, align 4
25 %6 = add nsw i32 %5, %3
26 %7 = getelementptr inbounds [2048 x i32]* @a, i64 0, i64 %indvars.iv
27 store i32 %6, i32* %7, align 4
28 %indvars.iv.next = add i64 %indvars.iv, 1
29 %lftr.wideiv = trunc i64 %indvars.iv.next to i32
30 %exitcond = icmp eq i32 %lftr.wideiv, 256
31 br i1 %exitcond, label %8, label %1
33 ; <label>:8 ; preds = %1
38 ; Select VF=4 because sext <8 x i1> to <8 x i32> is expensive.
40 ;CHECK: load <4 x i16>
41 ;CHECK: sext <4 x i16>
42 ;CHECK: store <4 x i32>
44 define void @example10b(i16* noalias nocapture %sa, i16* noalias nocapture %sb, i16* noalias nocapture %sc, i32* noalias nocapture %ia, i32* noalias nocapture %ib, i32* noalias nocapture %ic) nounwind uwtable ssp {
47 ; <label>:1 ; preds = %1, %0
48 %indvars.iv = phi i64 [ 0, %0 ], [ %indvars.iv.next, %1 ]
49 %2 = getelementptr inbounds i16* %sb, i64 %indvars.iv
50 %3 = load i16* %2, align 2
51 %4 = sext i16 %3 to i32
52 %5 = getelementptr inbounds i32* %ia, i64 %indvars.iv
53 store i32 %4, i32* %5, align 4
54 %indvars.iv.next = add i64 %indvars.iv, 1
55 %lftr.wideiv = trunc i64 %indvars.iv.next to i32
56 %exitcond = icmp eq i32 %lftr.wideiv, 1024
57 br i1 %exitcond, label %6, label %1
59 ; <label>:6 ; preds = %1