1; RUN: opt %loadPolly -S -polly-codegen < %s | FileCheck %s
2;
3; This test case has a inner SCEV sdiv that will escape the SCoP. Just check we
4; do not crash and generate valid code.
5;
6; CHECK:    polly.split_new_and_old:
7;
8target triple = "x86_64-unknown-linux-gnu"
9
10define i64 @_vorbis_apply_window(float* %d, i64 %param) {
11entry:
12  %0 = load float*, float** undef, align 8
13  %div23.neg = sdiv i64 0, -4
14  %sub24 = add i64 0, %div23.neg
15  br label %for.cond.30.preheader
16
17for.cond.30.preheader:                            ; preds = %for.body, %entry
18  %sext = shl i64 %sub24, 32
19  %conv48.74 = ashr exact i64 %sext, 32
20  %div43 = sdiv i64 %param, 2
21  %cmp49.75 = icmp slt i64 %conv48.74, 0
22  br i1 %cmp49.75, label %for.body.51.lr.ph, label %for.cond.60.preheader
23
24for.body.51.lr.ph:                                ; preds = %for.cond.30.preheader
25  %div44 = sdiv i64 %div43, 2
26  %sub45 = add nsw i64 %div44, 4294967295
27  %1 = trunc i64 %sub45 to i32
28  %2 = sext i32 %1 to i64
29  br label %for.body.51
30
31for.cond.60.preheader:                            ; preds = %for.body.51, %for.cond.30.preheader
32  %div44.m = phi i64 [%div44, %for.body.51], [ 0, %for.cond.30.preheader]
33  br i1 true, label %end, label %for.cond.30.preheader
34
35end:
36  ret i64 %div44.m
37
38for.body.51:                                      ; preds = %for.body.51, %for.body.51.lr.ph
39  %indvars.iv86 = phi i64 [ %2, %for.body.51.lr.ph ], [ undef, %for.body.51 ]
40  %arrayidx53 = getelementptr inbounds float, float* %0, i64 %indvars.iv86
41  %3 = load float, float* %arrayidx53, align 4
42  %arrayidx55 = getelementptr inbounds float, float* %d, i64 0
43  %mul56 = fmul float %3, undef
44  store float %mul56, float* %arrayidx55, align 4
45  br i1 false, label %for.body.51, label %for.cond.60.preheader
46}
47