1; PR28705
2; RUN: opt < %s -indvars -S | FileCheck %s
3
4; Check IndVarSimplify replaces the exitval use of the induction var "%inc.i.i"
5; with "%.sroa.speculated + 1".
6;
7; CHECK-LABEL: @foo(
8; CHECK: %[[EXIT:.+]] = sub i32 %.sroa.speculated, -1
9; CHECK: %DB.sroa.9.0.lcssa = phi i32 [ 1, %entry ], [ %[[EXIT]], %loopexit ]
10;
11define void @foo(i32 %sub.ptr.div.i, i8* %ref.i1174) local_unnamed_addr {
12entry:
13  %cmp.i1137 = icmp ugt i32 %sub.ptr.div.i, 3
14  %.sroa.speculated = select i1 %cmp.i1137, i32 3, i32 %sub.ptr.div.i
15  %cmp6483126 = icmp eq i32 %.sroa.speculated, 0
16  br i1 %cmp6483126, label %XZ.exit, label %for.body650.lr.ph
17
18for.body650.lr.ph:
19  br label %for.body650
20
21loopexit:
22  %inc.i.i.lcssa = phi i32 [ %inc.i.i, %for.body650 ]
23  br label %XZ.exit
24
25XZ.exit:
26  %DB.sroa.9.0.lcssa = phi i32 [ 1, %entry ], [ %inc.i.i.lcssa, %loopexit ]
27  br label %end
28
29for.body650:
30  %iv = phi i32 [ 0, %for.body650.lr.ph ], [ %inc655, %for.body650 ]
31  %iv2 = phi i32 [ 1, %for.body650.lr.ph ], [ %inc.i.i, %for.body650 ]
32  %arrayidx.i.i1105 = getelementptr inbounds i8, i8* %ref.i1174, i32 %iv2
33  store i8 7, i8* %arrayidx.i.i1105, align 1
34  %inc.i.i = add i32 %iv2, 1
35  %inc655 = add i32 %iv, 1
36  %cmp648 = icmp eq i32 %inc655, %.sroa.speculated
37  br i1 %cmp648, label %loopexit, label %for.body650
38
39end:
40  ret void
41}
42