1 ; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -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 @array = common global [1024 x i32] zeroinitializer, align 16 7 8 ;CHECK: @array_at_plus_one 9 ;CHECK: trunc i64 10 ;CHECK: add i64 %index, 12 11 ;CHECK: ret i32 12 define i32 @array_at_plus_one(i32 %n) nounwind uwtable ssp { 13 %1 = icmp sgt i32 %n, 0 14 br i1 %1, label %.lr.ph, label %._crit_edge 15 16 .lr.ph: ; preds = %0, %.lr.ph 17 %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ] 18 %2 = add nsw i64 %indvars.iv, 12 19 %3 = getelementptr inbounds [1024 x i32]* @array, i64 0, i64 %2 20 %4 = trunc i64 %indvars.iv to i32 21 store i32 %4, i32* %3, align 4 22 %indvars.iv.next = add i64 %indvars.iv, 1 23 %lftr.wideiv = trunc i64 %indvars.iv.next to i32 24 %exitcond = icmp eq i32 %lftr.wideiv, %n 25 br i1 %exitcond, label %._crit_edge, label %.lr.ph 26 27 ._crit_edge: ; preds = %.lr.ph, %0 28 ret i32 undef 29 } 30
