1; RUN: opt -S -loop-vectorize -mcpu=prescott < %s | FileCheck %s
2
3target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S128"
4target triple = "i386-apple-darwin"
5
6; PR15344
7define void @test1(float* nocapture %arg, i32 %arg1) nounwind {
8; CHECK-LABEL: @test1(
9; CHECK: preheader
10; CHECK: insertelement <2 x double> zeroinitializer, double %tmp, i32 0
11; CHECK: vector.memcheck
12
13bb:
14  br label %bb2
15
16bb2:                                              ; preds = %bb
17  %tmp = load double* null, align 8
18  br i1 undef, label %bb3, label %bb12
19
20bb3:                                              ; preds = %bb3, %bb2
21  %tmp4 = phi double [ %tmp9, %bb3 ], [ %tmp, %bb2 ]
22  %tmp5 = phi i32 [ %tmp8, %bb3 ], [ 0, %bb2 ]
23  %tmp6 = getelementptr inbounds [16 x double]* undef, i32 0, i32 %tmp5
24  %tmp7 = load double* %tmp6, align 4
25  %tmp8 = add nsw i32 %tmp5, 1
26  %tmp9 = fadd fast double %tmp4, undef
27  %tmp10 = getelementptr inbounds float* %arg, i32 %tmp5
28  store float undef, float* %tmp10, align 4
29  %tmp11 = icmp eq i32 %tmp8, %arg1
30  br i1 %tmp11, label %bb12, label %bb3
31
32bb12:                                             ; preds = %bb3, %bb2
33  %tmp13 = phi double [ %tmp, %bb2 ], [ %tmp9, %bb3 ]
34  ret void
35}
36