1; RUN: opt < %s -disable-output "-passes=print<da>" -aa-pipeline=basic-aa 2>&1 \
2; RUN: | FileCheck %s -check-prefix=DELIN
3
4target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
5target triple = "x86_64-apple-macosx10.6.0"
6
7; for (int i = 0; i < 100; ++i) {
8;   int t0 = a[i][i];
9;   int t1 = t0 + 1;
10;   a[i][5] = t1;
11; }
12; The subscript 5 in a[i][5] is deliberately an i32, mismatching the types of
13; other subscript. DependenceAnalysis before the fix crashed due to this
14; mismatch.
15define void @i32_subscript([100 x [100 x i32]]* %a, i32* %b) {
16; DELIN-LABEL: 'Dependence Analysis' for function 'i32_subscript'
17entry:
18  br label %for.body
19
20for.body:
21; DELIN: da analyze - none!
22; DELIN: da analyze - anti [=|<]!
23; DELIN: da analyze - none!
24  %i = phi i64 [ 0, %entry ], [ %i.inc, %for.body ]
25  %a.addr = getelementptr [100 x [100 x i32]], [100 x [100 x i32]]* %a, i64 0, i64 %i, i64 %i
26  %a.addr.2 = getelementptr [100 x [100 x i32]], [100 x [100 x i32]]* %a, i64 0, i64 %i, i32 5
27  %0 = load i32, i32* %a.addr, align 4
28  %1 = add i32 %0, 1
29  store i32 %1, i32* %a.addr.2, align 4
30  %i.inc = add nsw i64 %i, 1
31  %exitcond = icmp ne i64 %i.inc, 100
32  br i1 %exitcond, label %for.body, label %for.end
33
34for.end:
35  ret void
36}
37
38;  unsigned i, j;
39;  for (i = 1; i < SIZE; i++) {
40;    for (j = i; j < SIZE; j++) {
41;      a[i][j] = a[i+1][j-1] + 2;
42;    }
43;  }
44;  Extends the previous example to coupled MIV subscripts.
45
46
47@a = global [10004 x [10004 x i32]] zeroinitializer, align 16
48
49; Function Attrs: nounwind uwtable
50define void @coupled_miv_type_mismatch(i32 %n) #0 {
51; DELIN-LABEL: 'Dependence Analysis' for function 'coupled_miv_type_mismatch'
52entry:
53  br label %for.cond
54
55; DELIN: da analyze - input [* *]!
56; DELIN: da analyze - anti [* *|<]!
57; DELIN: da analyze - none!
58for.cond:                                         ; preds = %for.inc11, %entry
59  %indvars.iv11 = phi i64 [ %indvars.iv.next12, %for.inc11 ], [ 1, %entry ]
60  %exitcond14 = icmp ne i64 %indvars.iv11, 10000
61  br i1 %exitcond14, label %for.cond1.preheader, label %for.end13
62
63for.cond1.preheader:                              ; preds = %for.cond
64  %0 = trunc i64 %indvars.iv11 to i32
65  br label %for.cond1
66
67for.cond1:                                        ; preds = %for.cond1.preheader, %for.body3
68  %indvars.iv8 = phi i64 [ %indvars.iv11, %for.cond1.preheader ], [ %indvars.iv.next9, %for.body3 ]
69  %j.0 = phi i32 [ %inc, %for.body3 ], [ %0, %for.cond1.preheader ]
70  %lftr.wideiv = trunc i64 %indvars.iv8 to i32
71  %exitcond = icmp ne i32 %lftr.wideiv, 10000
72  br i1 %exitcond, label %for.body3, label %for.inc11
73
74for.body3:                                        ; preds = %for.cond1
75  %sub = add nsw i32 %j.0, -1
76  %idxprom = zext i32 %sub to i64
77  %1 = add nuw nsw i64 %indvars.iv11, 1
78  %arrayidx5 = getelementptr inbounds [10004 x [10004 x i32]], [10004 x [10004 x i32]]* @a, i64 0, i64 %1, i64 %idxprom
79  %2 = load i32, i32* %arrayidx5, align 4
80  %add6 = add nsw i32 %2, 2
81  %arrayidx10 = getelementptr inbounds [10004 x [10004 x i32]], [10004 x [10004 x i32]]* @a, i64 0, i64 %indvars.iv11, i64 %indvars.iv8
82  store i32 %add6, i32* %arrayidx10, align 4
83  %indvars.iv.next9 = add nuw nsw i64 %indvars.iv8, 1
84  %inc = add nuw nsw i32 %j.0, 1
85  br label %for.cond1
86
87for.inc11:                                        ; preds = %for.cond1
88  %indvars.iv.next12 = add nuw nsw i64 %indvars.iv11, 1
89  br label %for.cond
90
91for.end13:                                        ; preds = %for.cond
92  ret void
93}
94
95attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
96
97!llvm.ident = !{!0}
98
99!0 = !{!"clang version 3.7.0"}
100