1; RUN: opt < %s -loop-reduce -S | FileCheck %s
2
3target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
4
5declare void @foo(i8)
6
7define void @not_addressing_mode(i8* %input, i64 %n) {
8; CHECK-LABEL: @not_addressing_mode(
9entry:
10  br label %loop
11
12loop:
13; CHECK: loop:
14; CHECK: %lsr.iv = phi i8* [ {{%[^,]+}}, %loop ], [ %input, %entry ]
15  %i = phi i64 [ 0, %entry ], [ %i.next, %loop ]
16  %i.next = add i64 %i, 1
17  %j = mul i64 %i, -2
18  ; (%input - 2 * %j) is not foldable. Worth another indvar.
19  %p = getelementptr i8, i8* %input, i64 %j
20  %v = load i8, i8* %p
21; CHECK: %v = load i8, i8* %lsr.iv
22  call void @foo(i8 %v)
23  %exitcond = icmp slt i64 %i.next, %n
24  br i1 %exitcond, label %exit, label %loop
25
26exit:
27  ret void
28}
29