1; RUN: opt %loadPolly -polly-scops -analyze < %s
2;
3; This crased at some point as we place %1 and %4 in the same equivalence class
4; for invariant loads and when we remap SCEVs to use %4 instead of %1 AddRec SCEVs
5; for the for.body.10 loop caused a crash as their operands were not invariant
6; in the loop. While we know they are, ScalarEvolution does not. However, we can simply
7; rewrite the AddRecs to hoist everything from the "start" out of the AddRec.
8;
9; Check we do not crash.
10target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
11
12%struct.codebook.48.118.748.1882.2972 = type { i64, i64, i64, %struct.static_codebook.19.89.719.1853.2971*, float*, i32*, i32*, i8*, i32*, i32, i32 }
13%struct.static_codebook.19.89.719.1853.2971 = type { i64, i64, i64*, i32, i64, i64, i32, i32, i64*, %struct.encode_aux_nearestmatch.16.86.716.1850.2968*, %struct.encode_aux_threshmatch.17.87.717.1851.2969*, %struct.encode_aux_pigeonhole.18.88.718.1852.2970*, i32 }
14%struct.encode_aux_nearestmatch.16.86.716.1850.2968 = type { i64*, i64*, i64*, i64*, i64, i64 }
15%struct.encode_aux_threshmatch.17.87.717.1851.2969 = type { float*, i64*, i32, i32 }
16%struct.encode_aux_pigeonhole.18.88.718.1852.2970 = type { float, float, i32, i32, i64*, i64, i64*, i64*, i64* }
17
18; Function Attrs: inlinehint nounwind uwtable
19declare i64 @decode_packed_entry_number() #0
20
21; Function Attrs: nounwind uwtable
22define void @vorbis_book_decodev_set(%struct.codebook.48.118.748.1882.2972* %book) #1 {
23entry:
24  br i1 undef, label %for.body, label %return
25
26for.cond.loopexit:                                ; preds = %for.body.10, %if.end
27  br i1 undef, label %for.body, label %return
28
29for.body:                                         ; preds = %for.cond.loopexit, %entry
30  %call = tail call i64 @decode_packed_entry_number()
31  br i1 undef, label %return, label %if.end
32
33if.end:                                           ; preds = %for.body
34  %valuelist = getelementptr inbounds %struct.codebook.48.118.748.1882.2972, %struct.codebook.48.118.748.1882.2972* %book, i64 0, i32 4
35  %0 = load float*, float** %valuelist, align 8
36  %sext = shl i64 %call, 32
37  %conv4 = ashr exact i64 %sext, 32
38  %dim = getelementptr inbounds %struct.codebook.48.118.748.1882.2972, %struct.codebook.48.118.748.1882.2972* %book, i64 0, i32 0
39  %1 = load i64, i64* %dim, align 8
40  %mul = mul nsw i64 %1, %conv4
41  %add.ptr = getelementptr inbounds float, float* %0, i64 %mul
42  %cmp8.7 = icmp sgt i64 %1, 0
43  br i1 %cmp8.7, label %for.body.10, label %for.cond.loopexit
44
45for.body.10:                                      ; preds = %for.body.10, %if.end
46  %indvars.iv15 = phi i64 [ %indvars.iv.next16, %for.body.10 ], [ 0, %if.end ]
47  %indvars.iv.next16 = add nuw nsw i64 %indvars.iv15, 1
48  %arrayidx = getelementptr inbounds float, float* %add.ptr, i64 %indvars.iv15
49  %2 = bitcast float* %arrayidx to i32*
50  %3 = load i32, i32* %2, align 4
51  %4 = load i64, i64* %dim, align 8
52  %cmp8 = icmp slt i64 %indvars.iv.next16, %4
53  br i1 %cmp8, label %for.body.10, label %for.cond.loopexit
54
55return:                                           ; preds = %for.body, %for.cond.loopexit, %entry
56  ret void
57}
58