| Sanjay Patel | 5ad239e | 2014-09-01 18:44:57 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -loop-vectorize -force-vector-width=4 -S | FileCheck %s |
| 2 | |
| 3 | target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| 4 | target triple = "x86_64-apple-macosx10.9.0" |
| 5 | |
| 6 | ; CHECK-LABEL: @lshr_exact( |
| 7 | ; CHECK: lshr exact <4 x i32> |
| 8 | define void @lshr_exact(i32* %x) { |
| 9 | entry: |
| 10 | br label %for.body |
| 11 | |
| 12 | for.body: |
| 13 | %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ] |
| David Blaikie | 79e6c74 | 2015-02-27 19:29:02 +0000 | [diff] [blame] | 14 | %arrayidx = getelementptr inbounds i32, i32* %x, i64 %iv |
| Sanjay Patel | 5ad239e | 2014-09-01 18:44:57 +0000 | [diff] [blame] | 15 | %0 = load i32* %arrayidx, align 4 |
| 16 | %conv1 = lshr exact i32 %0, 1 |
| 17 | store i32 %conv1, i32* %arrayidx, align 4 |
| 18 | %iv.next = add nuw nsw i64 %iv, 1 |
| 19 | %exitcond = icmp eq i64 %iv.next, 256 |
| 20 | br i1 %exitcond, label %for.end, label %for.body |
| 21 | |
| 22 | for.end: |
| 23 | ret void |
| 24 | } |