1 ; RUN: opt -basicaa -loop-versioning -S < %s | FileCheck %s
3 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
5 ; Version this loop with overlap checks between a, c and b, c.
7 define void @f(i32* %a, i32* %b, i32* %c) {
11 ; CHECK: for.body.lver.check:
17 ; CHECK: br i1 %memcheck.conflict, label %for.body.ph.lver.orig, label %for.body.ph
19 ; CHECK: for.body.ph.lver.orig:
20 ; CHECK: for.body.lver.orig:
21 ; CHECK: br i1 %exitcond.lver.orig, label %for.end, label %for.body.lver.orig
24 ; CHECK: br i1 %exitcond, label %for.end, label %for.body
27 for.body: ; preds = %for.body, %entry
28 %ind = phi i64 [ 0, %entry ], [ %add, %for.body ]
30 %arrayidxA = getelementptr inbounds i32, i32* %a, i64 %ind
31 %loadA = load i32, i32* %arrayidxA, align 4
33 %arrayidxB = getelementptr inbounds i32, i32* %b, i64 %ind
34 %loadB = load i32, i32* %arrayidxB, align 4
36 %mulC = mul i32 %loadA, %loadB
38 %arrayidxC = getelementptr inbounds i32, i32* %c, i64 %ind
39 store i32 %mulC, i32* %arrayidxC, align 4
41 %add = add nuw nsw i64 %ind, 1
42 %exitcond = icmp eq i64 %add, 20
43 br i1 %exitcond, label %for.end, label %for.body
45 for.end: ; preds = %for.body