xref: /llvm-project/llvm/test/Analysis/DependenceAnalysis/MIVCheckConst.ll (revision 46f9cddfd7e40998422d1e34a3f1193210ee2fb8) 
1; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 5
2; RUN: opt < %s -disable-output -passes="print<da>" 2>&1 | FileCheck %s
3
4; Test that the dependence analysis pass does seg-fault due to a null pointer
5; dereference. The code in gcdMIVTest requires a null check for the result of
6; getConstantPart.
7
8target datalayout = "e-m:e-p:32:32-i1:32-i64:64-a:0-v32:32-n16:32"
9
10%0 = type { i32 }
11%1 = type { [2 x [512 x %0]], [512 x %0], %2, [144 x i8], %9, %10, %11, %12, %17, [12 x i8], %18, %19, %21, [128 x i8] }
12%2 = type { [64 x i16], [64 x i16], [64 x %0], [64 x %0], [128 x %0], [128 x %0], [256 x %0], [256 x %0], [32 x %0], [32 x %0], [64 x i16], [64 x i16], [64 x i16], [64 x i16], [64 x i16], %3, %4, %5, [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], %6, %7, [32 x i32], [32 x i32], [32 x i32], [64 x i16], %8, [8 x i64], [4 x i64], [2 x i64], [256 x i8], [256 x i32], [64 x i16], [64 x i16] }
13%3 = type { [64 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [64 x i32], [64 x i32], [64 x i32], [64 x i32], [64 x i32], [64 x i32], [64 x i32], [64 x i32], [64 x i32], [64 x i16], [64 x i16], [64 x i16], [64 x i16], [64 x i16], [64 x i16], [64 x i16], [64 x i16], [64 x i16], [64 x i16], [64 x i16], [64 x i16], [32 x %0], [32 x %0], [128 x i8] }
14%4 = type { [64 x i16], [64 x i16], [64 x i16], [64 x i16], [64 x i16], [64 x i16], [64 x i16], [64 x i16] }
15%5 = type { [128 x i8], [256 x i8], [256 x i8] }
16%6 = type { [64 x i32], [128 x i16], [64 x i16], [64 x i16], [64 x i16] }
17%7 = type { [192 x %0], [192 x %0], [384 x %0], [1984 x %0] }
18%8 = type { [128 x i8], [128 x i8], [64 x i16], [64 x i16], [64 x i16], [64 x i16], [64 x i16], [64 x i16] }
19%9 = type { [32 x %0], [32 x %0], [64 x i32], [64 x i32], [64 x i32], [64 x i32] }
20%10 = type { [1536 x %0], [2048 x %0], [512 x i32], [256 x i32], [32 x %0], [64 x i32], [128 x i8], [512 x i32], [1024 x %0] }
21%11 = type { [512 x i32], [512 x i32], [1024 x %0], [512 x i32], [512 x %0] }
22%12 = type { %13, [2048 x %0], [2048 x %0], [256 x i32], [1024 x i32], %14, [512 x %0], [256 x i32], %15, [4 x [256 x %0]], [4 x [256 x %0]], [256 x i32], [8 x [32 x i32]], [8 x [32 x %0]], [384 x %0], [256 x i32], %16 }
23%13 = type { [2048 x %0] }
24%14 = type { [1024 x %0], [1024 x %0] }
25%15 = type { [256 x %0], [256 x %0] }
26%16 = type { [128 x %0], [128 x %0] }
27%17 = type { [32 x %0], [32 x i32], [32 x i32], [32 x i32], [32 x i32], [2 x [8 x [32 x %0]]], [512 x %0], [512 x %0], [58 x i16] }
28%18 = type { [512 x i8] }
29%19 = type { [2048 x %0], [2560 x i16], %20, [512 x i32], [256 x i32], [512 x i8] }
30%20 = type { [768 x i32] }
31%21 = type { [416 x i32] }
32
33define void @test(ptr %A, ptr %B, i1 %arg, i32 %n, i32 %m) #0 align 2 {
34; CHECK-LABEL: 'test'
35; CHECK-NEXT:  Src: %v1 = load i32, ptr %B, align 4 --> Dst: %v1 = load i32, ptr %B, align 4
36; CHECK-NEXT:    da analyze - none!
37; CHECK-NEXT:  Src: %v1 = load i32, ptr %B, align 4 --> Dst: %v27 = load <32 x i32>, ptr %v25, align 256
38; CHECK-NEXT:    da analyze - confused!
39; CHECK-NEXT:  Src: %v1 = load i32, ptr %B, align 4 --> Dst: %v32 = load <32 x i32>, ptr %v30, align 128
40; CHECK-NEXT:    da analyze - confused!
41; CHECK-NEXT:  Src: %v27 = load <32 x i32>, ptr %v25, align 256 --> Dst: %v27 = load <32 x i32>, ptr %v25, align 256
42; CHECK-NEXT:    da analyze - consistent input [0 S S]!
43; CHECK-NEXT:  Src: %v27 = load <32 x i32>, ptr %v25, align 256 --> Dst: %v32 = load <32 x i32>, ptr %v30, align 128
44; CHECK-NEXT:    da analyze - input [* S S|<]!
45; CHECK-NEXT:  Src: %v32 = load <32 x i32>, ptr %v30, align 128 --> Dst: %v32 = load <32 x i32>, ptr %v30, align 128
46; CHECK-NEXT:    da analyze - consistent input [0 S S]!
47;
48entry:
49  %v1 = load i32, ptr %B, align 4
50  br label %bb13
51
52bb13:
53  %v2 = phi i32 [ 0, %entry ], [ %v39, %bb38 ]
54  br i1 %arg, label %bb15, label %bb38
55
56bb15:
57  %v3 = mul nsw i32 %v2, 2
58  br label %bb17
59
60bb17:
61  br i1 %arg, label %bb21, label %bb37
62
63bb21:
64  %v22 = add nsw i32 %n, 1
65  %v23 = add i32 %v22, %v3
66  %v24 = mul nsw i32 %v23, %v1
67  %v25 = getelementptr inbounds %1, ptr %A, i32 0, i32 7, i32 1, i32 %v24
68  %v27 = load <32 x i32>, ptr %v25, align 256
69  %v28 = add i32 %m, %v3
70  %v29 = mul nsw i32 %v28, 32
71  %v30 = getelementptr inbounds %1, ptr %A, i32 0, i32 7, i32 14, i32 %v29
72  %v32 = load <32 x i32>, ptr %v30, align 128
73  br i1 %arg, label %bb21, label %bb37
74
75bb37:
76  br i1 %arg, label %bb17, label %bb38
77
78bb38:
79  %v39 = add nsw i32 %v2, 1
80  br label %bb13
81
82bb40:
83  ret void
84}
85
86attributes #0 = { "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
87