source: icGREP/icgrep-devel/llvm-3.8.0.src/test/Analysis/Delinearization/multidim_only_ivs_2d_nested.ll @ 5027

Last change on this file since 5027 was 5027, checked in by cameron, 3 years ago

Upgrade to llvm 3.8

File size: 3.6 KB
Line 
1; RUN: opt < %s -analyze -delinearize | FileCheck %s
2; XFAIL: *
3; We do not recognize anymore variable size arrays.
4
5; extern void bar(long n, long m, double A[n][m]);
6;
7; void foo(long a, long b) {
8;   for (long n = 1; n < a; ++n)
9;   for (long m = 1; m < b; ++m) {
10;     double A[n][m];
11;     for (long i = 0; i < n; i++)
12;       for (long j = 0; j < m; j++)
13;         A[i][j] = 1.0;
14;     bar(n, m, A);
15;   }
16; }
17
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>]
22
23define void @foo(i64 %a, i64 %b) nounwind uwtable {
24entry:
25  %cmp43 = icmp sgt i64 %a, 1
26  br i1 %cmp43, label %for.cond1.preheader.lr.ph, label %for.end19
27
28for.cond1.preheader.lr.ph:                        ; preds = %entry
29  %cmp224 = icmp sgt i64 %b, 1
30  br label %for.cond1.preheader
31
32for.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
35
36for.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
42
43for.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
47
48for.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
52
53for.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
61
62for.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
68
69for.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
73
74for.end19:                                        ; preds = %for.inc17, %entry
75  ret void
76}
77
78declare i8* @llvm.stacksave() nounwind
79declare void @bar(i64, i64, double*)
80declare void @llvm.stackrestore(i8*) nounwind
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