1 ; RUN: opt < %s -loop-vectorize -force-vector-unroll=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 ;CHECK-LABEL: @read_mod_write_single_ptr( 7 ;CHECK: load <4 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* %a, i64 %indvars.iv 16 %3 = load 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
