1 ; RUN: opt %loadPolly -polly-detect -\
2 ; RUN: -analyze < %s | FileCheck %s
4 ; CHECK: Valid Region for Scop: bb11 => bb25
6 ; Ensure that this test case does not trigger an assertion. At some point,
7 ; we asserted on scops containing accesses where the access function contained
8 ; an AddRec expression with a non-constant step expression. This got missed, as
9 ; this very specific pattern does not seem too common. Even in this test case,
10 ; it disappears as soon as we turn the infinite loop into a finite loop.
12 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
13 target triple = "x86_64-unknown-linux-gnu"
15 define void @hoge() local_unnamed_addr {
17 %tmp = alloca [18 x [16 x i32]]
18 %tmp1 = alloca [17 x i32]
22 %tmp3 = phi i64 [ 0, %bb ], [ %tmp5, %bb2 ]
23 %tmp4 = add nuw nsw i64 %tmp3, 2
24 %tmp5 = add nuw nsw i64 %tmp3, 1
25 br i1 undef, label %bb2, label %bb11
28 %tmp12 = phi i64 [ %tmp23, %bb24 ], [ 1, %bb2 ]
29 %tmp14 = getelementptr inbounds [17 x i32], [17 x i32]* %tmp1, i64 0, i64 1
33 %tmp16 = sub nsw i64 %tmp12, 1
34 %tmp17 = shl i64 %tmp16, 32
35 %tmp18 = ashr exact i64 %tmp17, 32
36 %tmp19 = getelementptr inbounds [18 x [16 x i32]], [18 x [16 x i32]]* %tmp, i64 0, i64 %tmp4, i64 %tmp18
37 %tmp20 = load i32, i32* %tmp19, align 4
38 store i32 4, i32* %tmp19
42 %tmp23 = add nuw nsw i64 %tmp12, 1
43 br i1 true, label %bb24, label %bb25