| Nadav Rotem | 30a65bc | 2013-01-09 01:20:59 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s |
| Nadav Rotem | bc21ace | 2012-10-30 18:36:45 +0000 | [diff] [blame] | 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 | |
| Stephen Lin | c1c7a13 | 2013-07-14 01:42:54 +0000 | [diff] [blame] | 6 | ;CHECK-LABEL: @read_mod_write_single_ptr( |
| Nadav Rotem | bc21ace | 2012-10-30 18:36:45 +0000 | [diff] [blame] | 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 | } |