1 ; RUN: opt < %s -analyze -enable-new-pm=0 -delinearize | FileCheck %s
2 ; RUN: opt < %s -passes='print<delinearization>' -disable-output 2>&1 | FileCheck %s
4 ; We do not recognize anymore variable size arrays.
6 ; extern void bar(long n, long m, double A[n][m]);
8 ; void foo(long a, long b) {
9 ; for (long n = 1; n < a; ++n)
10 ; for (long m = 1; m < b; ++m) {
12 ; for (long i = 0; i < n; i++)
13 ; for (long j = 0; j < m; j++)
19 ; AddRec: {{%vla.us,+,{8,+,8}<%for.cond7.preheader.lr.ph.split.us.us>}<%for.body9.lr.ph.us.us>,+,8}<%for.body9.us.us>
20 ; CHECK: Base offset: %vla.us
21 ; CHECK: ArrayDecl[UnknownSize][{1,+,1}<%for.cond7.preheader.lr.ph.split.us.us>] with elements of sizeof(double) bytes.
22 ; CHECK: ArrayRef[{0,+,1}<nuw><nsw><%for.body9.lr.ph.us.us>][{0,+,1}<nuw><nsw><%for.body9.us.us>]
24 define void @foo(i64 %a, i64 %b) nounwind uwtable {
26 %cmp43 = icmp sgt i64 %a, 1
27 br i1 %cmp43, label %for.cond1.preheader.lr.ph, label %for.end19
29 for.cond1.preheader.lr.ph: ; preds = %entry
30 %cmp224 = icmp sgt i64 %b, 1
31 br label %for.cond1.preheader
33 for.cond1.preheader: ; preds = %for.inc17, %for.cond1.preheader.lr.ph
34 %indvars.iv51 = phi i64 [ 1, %for.cond1.preheader.lr.ph ], [ %indvars.iv.next52, %for.inc17 ]
35 br i1 %cmp224, label %for.cond7.preheader.lr.ph.split.us.us, label %for.inc17
37 for.end13.us: ; preds = %for.inc11.us.us
38 call void @bar(i64 %indvars.iv51, i64 %indvars.iv48, double* %vla.us) nounwind
39 call void @llvm.stackrestore(i8* %1)
40 %indvars.iv.next49 = add i64 %indvars.iv48, 1
41 %exitcond54 = icmp eq i64 %indvars.iv.next49, %b
42 br i1 %exitcond54, label %for.inc17, label %for.cond7.preheader.lr.ph.split.us.us
44 for.inc11.us.us: ; preds = %for.body9.us.us
45 %inc12.us.us = add nsw i64 %i.023.us.us, 1
46 %exitcond53 = icmp eq i64 %inc12.us.us, %indvars.iv51
47 br i1 %exitcond53, label %for.end13.us, label %for.body9.lr.ph.us.us
49 for.body9.lr.ph.us.us: ; preds = %for.cond7.preheader.lr.ph.split.us.us, %for.inc11.us.us
50 %i.023.us.us = phi i64 [ 0, %for.cond7.preheader.lr.ph.split.us.us ], [ %inc12.us.us, %for.inc11.us.us ]
51 %0 = mul nsw i64 %i.023.us.us, %indvars.iv48
52 br label %for.body9.us.us
54 for.body9.us.us: ; preds = %for.body9.us.us, %for.body9.lr.ph.us.us
55 %j.021.us.us = phi i64 [ 0, %for.body9.lr.ph.us.us ], [ %inc.us.us, %for.body9.us.us ]
56 %arrayidx.sum.us.us = add i64 %j.021.us.us, %0
57 %arrayidx10.us.us = getelementptr inbounds double, double* %vla.us, i64 %arrayidx.sum.us.us
58 store double 1.000000e+00, double* %arrayidx10.us.us, align 8
59 %inc.us.us = add nsw i64 %j.021.us.us, 1
60 %exitcond50 = icmp eq i64 %inc.us.us, %indvars.iv48
61 br i1 %exitcond50, label %for.inc11.us.us, label %for.body9.us.us
63 for.cond7.preheader.lr.ph.split.us.us: ; preds = %for.cond1.preheader, %for.end13.us
64 %indvars.iv48 = phi i64 [ %indvars.iv.next49, %for.end13.us ], [ 1, %for.cond1.preheader ]
65 %1 = call i8* @llvm.stacksave()
66 %2 = mul nuw i64 %indvars.iv48, %indvars.iv51
67 %vla.us = alloca double, i64 %2, align 16
68 br label %for.body9.lr.ph.us.us
70 for.inc17: ; preds = %for.end13.us, %for.cond1.preheader
71 %indvars.iv.next52 = add i64 %indvars.iv51, 1
72 %exitcond55 = icmp eq i64 %indvars.iv.next52, %a
73 br i1 %exitcond55, label %for.end19, label %for.cond1.preheader
75 for.end19: ; preds = %for.inc17, %entry
79 declare i8* @llvm.stacksave() nounwind
80 declare void @bar(i64, i64, double*)
81 declare void @llvm.stackrestore(i8*) nounwind