| Sanjay Patel | b653de1 | 2014-09-10 17:58:16 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s |
| Nadav Rotem | d189b82 | 2012-10-20 08:26:33 +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" |
| Nadav Rotem | d189b82 | 2012-10-20 08:26:33 +0000 | [diff] [blame] | 4 | |
| Stephen Lin | c1c7a13 | 2013-07-14 01:42:54 +0000 | [diff] [blame] | 5 | ;CHECK-LABEL: @read_only_func( |
| Nadav Rotem | d189b82 | 2012-10-20 08:26:33 +0000 | [diff] [blame] | 6 | ;CHECK: load <4 x i32> |
| 7 | ;CHECK: ret i32 |
| 8 | define i32 @read_only_func(i32* nocapture %A, i32* nocapture %B, i32 %n) nounwind uwtable readonly ssp { |
| 9 | %1 = icmp sgt i32 %n, 0 |
| 10 | br i1 %1, label %.lr.ph, label %._crit_edge |
| 11 | |
| 12 | .lr.ph: ; preds = %0, %.lr.ph |
| 13 | %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ] |
| 14 | %sum.02 = phi i32 [ %9, %.lr.ph ], [ 0, %0 ] |
| David Blaikie | 79e6c74 | 2015-02-27 19:29:02 +0000 | [diff] [blame] | 15 | %2 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv |
| David Blaikie | a79ac14 | 2015-02-27 21:17:42 +0000 | [diff] [blame] | 16 | %3 = load i32, i32* %2, align 4 |
| Nadav Rotem | d189b82 | 2012-10-20 08:26:33 +0000 | [diff] [blame] | 17 | %4 = add nsw i64 %indvars.iv, 13 |
| David Blaikie | 79e6c74 | 2015-02-27 19:29:02 +0000 | [diff] [blame] | 18 | %5 = getelementptr inbounds i32, i32* %B, i64 %4 |
| David Blaikie | a79ac14 | 2015-02-27 21:17:42 +0000 | [diff] [blame] | 19 | %6 = load i32, i32* %5, align 4 |
| Nadav Rotem | d189b82 | 2012-10-20 08:26:33 +0000 | [diff] [blame] | 20 | %7 = shl i32 %6, 1 |
| 21 | %8 = add i32 %3, %sum.02 |
| 22 | %9 = add i32 %8, %7 |
| 23 | %indvars.iv.next = add i64 %indvars.iv, 1 |
| 24 | %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| 25 | %exitcond = icmp eq i32 %lftr.wideiv, %n |
| 26 | br i1 %exitcond, label %._crit_edge, label %.lr.ph |
| 27 | |
| 28 | ._crit_edge: ; preds = %.lr.ph, %0 |
| 29 | %sum.0.lcssa = phi i32 [ 0, %0 ], [ %9, %.lr.ph ] |
| 30 | ret i32 %sum.0.lcssa |
| 31 | } |