1; RUN: opt < %s -loop-rotate -S | FileCheck %s
2
3; Test alloca in -loop-rotate.
4
5; We expect a different value for %ptr each iteration (according to the
6; definition of alloca). I.e. each @use must be paired with an alloca.
7
8; CHECK: call void @use(i8* %
9; CHECK: %ptr = alloca i8
10
11@e = global i16 10
12
13declare void @use(i8*)
14
15define void @test() {
16entry:
17  %end = load i16* @e
18  br label %loop
19
20loop:
21  %n.phi = phi i16 [ %n, %loop.fin ], [ 0, %entry ]
22  %ptr = alloca i8
23  %cond = icmp eq i16 %n.phi, %end
24  br i1 %cond, label %exit, label %loop.fin
25
26loop.fin:
27  %n = add i16 %n.phi, 1
28  call void @use(i8* %ptr)
29  br label %loop
30
31exit:
32  ret void
33}
34