1; RUN: opt < %s -scalar-evolution -analyze | FileCheck %s
2
3; CHECK: Loop %bb3: backedge-taken count is (-1 + %n)
4
5; We don't want to use a max in the trip count expression in
6; this testcase.
7
8define void @foo(i32 %n, i32* %p, i32* %q) nounwind {
9entry:
10	icmp sgt i32 %n, 0
11	br i1 %0, label %bb, label %return
12
13bb:
14	load i32, i32* %q, align 4
15	icmp eq i32 %1, 0
16	br i1 %2, label %return, label %bb3.preheader
17
18bb3.preheader:
19	br label %bb3
20
21bb3:
22	%i.0 = phi i32 [ %7, %bb3 ], [ 0, %bb3.preheader ]
23	getelementptr i32, i32* %p, i32 %i.0
24	load i32, i32* %3, align 4
25	add i32 %4, 1
26	getelementptr i32, i32* %p, i32 %i.0
27	store i32 %5, i32* %6, align 4
28	add i32 %i.0, 1
29	icmp slt i32 %7, %n
30	br i1 %8, label %bb3, label %return.loopexit
31
32return.loopexit:
33	br label %return
34
35return:
36	ret void
37}
38