1 ; RUN: opt %loadNPMPolly '-passes=print<polly-detect>' -disable-output < %s 2>&1 | FileCheck %s
3 ; CHECK: Valid Region for Scop: bb11 => bb25
5 ; Ensure that this test case does not trigger an assertion. At some point,
6 ; we asserted on scops containing accesses where the access function contained
7 ; an AddRec expression with a non-constant step expression. This got missed, as
8 ; this very specific pattern does not seem too common. Even in this test case,
9 ; it disappears as soon as we turn the infinite loop into a finite loop.
11 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
12 target triple = "x86_64-unknown-linux-gnu"
14 define void @hoge() local_unnamed_addr {
16 %tmp = alloca [18 x [16 x i32]]
17 %tmp1 = alloca [17 x i32]
21 %tmp3 = phi i64 [ 0, %bb ], [ %tmp5, %bb2 ]
22 %tmp4 = add nuw nsw i64 %tmp3, 2
23 %tmp5 = add nuw nsw i64 %tmp3, 1
24 br i1 undef, label %bb2, label %bb11
27 %tmp12 = phi i64 [ %tmp23, %bb24 ], [ 1, %bb2 ]
28 %tmp14 = getelementptr inbounds [17 x i32], ptr %tmp1, i64 0, i64 1
32 %tmp16 = sub nsw i64 %tmp12, 1
33 %tmp17 = shl i64 %tmp16, 32
34 %tmp18 = ashr exact i64 %tmp17, 32
35 %tmp19 = getelementptr inbounds [18 x [16 x i32]], ptr %tmp, i64 0, i64 %tmp4, i64 %tmp18
36 %tmp20 = load i32, ptr %tmp19, align 4
37 store i32 4, ptr %tmp19
41 %tmp23 = add nuw nsw i64 %tmp12, 1
42 br i1 true, label %bb24, label %bb25