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      1 ; RUN: opt < %s  -loop-vectorize -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx -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 ;CHECK-LABEL: @read_mod_write_single_ptr(
      7 ;CHECK: load <8 x float>
      8 ;CHECK: ret i32
      9 define i32 @read_mod_write_single_ptr(float* nocapture %a, i32 %n) nounwind uwtable ssp {
     10   %1 = icmp sgt i32 %n, 0
     11   br i1 %1, label %.lr.ph, label %._crit_edge
     12 
     13 .lr.ph:                                           ; preds = %0, %.lr.ph
     14   %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
     15   %2 = getelementptr inbounds float, float* %a, i64 %indvars.iv
     16   %3 = load float, float* %2, align 4
     17   %4 = fmul float %3, 3.000000e+00
     18   store float %4, float* %2, align 4
     19   %indvars.iv.next = add i64 %indvars.iv, 1
     20   %lftr.wideiv = trunc i64 %indvars.iv.next to i32
     21   %exitcond = icmp eq i32 %lftr.wideiv, %n
     22   br i1 %exitcond, label %._crit_edge, label %.lr.ph
     23 
     24 ._crit_edge:                                      ; preds = %.lr.ph, %0
     25   ret i32 undef
     26 }
     27 
     28 
     29 ;CHECK-LABEL: @read_mod_i64(
     30 ;CHECK: load <2 x i64>
     31 ;CHECK: ret i32
     32 define i32 @read_mod_i64(i64* nocapture %a, i32 %n) nounwind uwtable ssp {
     33   %1 = icmp sgt i32 %n, 0
     34   br i1 %1, label %.lr.ph, label %._crit_edge
     35 
     36 .lr.ph:                                           ; preds = %0, %.lr.ph
     37   %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
     38   %2 = getelementptr inbounds i64, i64* %a, i64 %indvars.iv
     39   %3 = load i64, i64* %2, align 4
     40   %4 = add i64 %3, 3
     41   store i64 %4, i64* %2, align 4
     42   %indvars.iv.next = add i64 %indvars.iv, 1
     43   %lftr.wideiv = trunc i64 %indvars.iv.next to i32
     44   %exitcond = icmp eq i32 %lftr.wideiv, %n
     45   br i1 %exitcond, label %._crit_edge, label %.lr.ph
     46 
     47 ._crit_edge:                                      ; preds = %.lr.ph, %0
     48   ret i32 undef
     49 }
     50