1 ; RUN: opt < %s -analyze -delinearize | FileCheck %s
3 ; We do not recognize anymore variable size arrays.
5 ; extern void bar(long n, long m, double A[n][m]);
7 ; void foo(long a, long b) {
8 ; for (long n = 1; n < a; ++n)
9 ; for (long m = 1; m < b; ++m) {
11 ; for (long i = 0; i < n; i++)
12 ; for (long j = 0; j < m; j++)
18 ; AddRec: {{%vla.us,+,{8,+,8}<%for.cond7.preheader.lr.ph.split.us.us>}<%for.body9.lr.ph.us.us>,+,8}<%for.body9.us.us>
19 ; CHECK: Base offset: %vla.us
20 ; CHECK: ArrayDecl[UnknownSize][{1,+,1}<%for.cond7.preheader.lr.ph.split.us.us>] with elements of sizeof(double) bytes.
21 ; CHECK: ArrayRef[{0,+,1}<nuw><nsw><%for.body9.lr.ph.us.us>][{0,+,1}<nuw><nsw><%for.body9.us.us>]
23 define void @foo(i64 %a, i64 %b) nounwind uwtable {
25 %cmp43 = icmp sgt i64 %a, 1
26 br i1 %cmp43, label %for.cond1.preheader.lr.ph, label %for.end19
28 for.cond1.preheader.lr.ph: ; preds = %entry
29 %cmp224 = icmp sgt i64 %b, 1
30 br label %for.cond1.preheader
32 for.cond1.preheader: ; preds = %for.inc17, %for.cond1.preheader.lr.ph
33 %indvars.iv51 = phi i64 [ 1, %for.cond1.preheader.lr.ph ], [ %indvars.iv.next52, %for.inc17 ]
34 br i1 %cmp224, label %for.cond7.preheader.lr.ph.split.us.us, label %for.inc17
36 for.end13.us: ; preds = %for.inc11.us.us
37 call void @bar(i64 %indvars.iv51, i64 %indvars.iv48, double* %vla.us) nounwind
38 call void @llvm.stackrestore(i8* %1)
39 %indvars.iv.next49 = add i64 %indvars.iv48, 1
40 %exitcond54 = icmp eq i64 %indvars.iv.next49, %b
41 br i1 %exitcond54, label %for.inc17, label %for.cond7.preheader.lr.ph.split.us.us
43 for.inc11.us.us: ; preds = %for.body9.us.us
44 %inc12.us.us = add nsw i64 %i.023.us.us, 1
45 %exitcond53 = icmp eq i64 %inc12.us.us, %indvars.iv51
46 br i1 %exitcond53, label %for.end13.us, label %for.body9.lr.ph.us.us
48 for.body9.lr.ph.us.us: ; preds = %for.cond7.preheader.lr.ph.split.us.us, %for.inc11.us.us
49 %i.023.us.us = phi i64 [ 0, %for.cond7.preheader.lr.ph.split.us.us ], [ %inc12.us.us, %for.inc11.us.us ]
50 %0 = mul nsw i64 %i.023.us.us, %indvars.iv48
51 br label %for.body9.us.us
53 for.body9.us.us: ; preds = %for.body9.us.us, %for.body9.lr.ph.us.us
54 %j.021.us.us = phi i64 [ 0, %for.body9.lr.ph.us.us ], [ %inc.us.us, %for.body9.us.us ]
55 %arrayidx.sum.us.us = add i64 %j.021.us.us, %0
56 %arrayidx10.us.us = getelementptr inbounds double, double* %vla.us, i64 %arrayidx.sum.us.us
57 store double 1.000000e+00, double* %arrayidx10.us.us, align 8
58 %inc.us.us = add nsw i64 %j.021.us.us, 1
59 %exitcond50 = icmp eq i64 %inc.us.us, %indvars.iv48
60 br i1 %exitcond50, label %for.inc11.us.us, label %for.body9.us.us
62 for.cond7.preheader.lr.ph.split.us.us: ; preds = %for.cond1.preheader, %for.end13.us
63 %indvars.iv48 = phi i64 [ %indvars.iv.next49, %for.end13.us ], [ 1, %for.cond1.preheader ]
64 %1 = call i8* @llvm.stacksave()
65 %2 = mul nuw i64 %indvars.iv48, %indvars.iv51
66 %vla.us = alloca double, i64 %2, align 16
67 br label %for.body9.lr.ph.us.us
69 for.inc17: ; preds = %for.end13.us, %for.cond1.preheader
70 %indvars.iv.next52 = add i64 %indvars.iv51, 1
71 %exitcond55 = icmp eq i64 %indvars.iv.next52, %a
72 br i1 %exitcond55, label %for.end19, label %for.cond1.preheader
74 for.end19: ; preds = %for.inc17, %entry
78 declare i8* @llvm.stacksave() nounwind
79 declare void @bar(i64, i64, double*)
80 declare void @llvm.stackrestore(i8*) nounwind