1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt < %s -S -passes='msan' -msan-poison-undef-vectors=true 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-PRECISE
; RUN: opt < %s -S -passes='msan' -msan-poison-undef-vectors=false 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-IMPRECISE
;
; Regression test case for computing shadows of partially poisoned vectors.
; Partially poisoned structs and arrays are not correctly implemented.
target 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"
target triple = "x86_64-unknown-linux-gnu"
define <2 x i64> @left_poison(ptr %add.ptr) sanitize_memory {
; CHECK-LABEL: define <2 x i64> @left_poison(
; CHECK-SAME: ptr [[ADD_PTR:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: call void @llvm.donothing()
; CHECK-PRECISE: store <2 x i64> <i64 -1, i64 0>, ptr @__msan_retval_tls, align 8
; CHECK-IMPRECISE: store <2 x i64> zeroinitializer, ptr @__msan_retval_tls, align 8
; CHECK-NEXT: ret <2 x i64> <i64 poison, i64 42>
;
ret <2 x i64> <i64 poison, i64 42>
}
define <2 x i64> @right_poison(ptr %add.ptr) sanitize_memory {
; CHECK-LABEL: define <2 x i64> @right_poison(
; CHECK-SAME: ptr [[ADD_PTR:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: call void @llvm.donothing()
; CHECK-PRECISE: store <2 x i64> <i64 0, i64 -1>, ptr @__msan_retval_tls, align 8
; CHECK-IMPRECISE: store <2 x i64> zeroinitializer, ptr @__msan_retval_tls, align 8
; CHECK-NEXT: ret <2 x i64> <i64 42, i64 poison>
;
ret <2 x i64> <i64 42, i64 poison>
}
define <2 x i64> @full_poison(ptr %add.ptr) sanitize_memory {
; CHECK-LABEL: define <2 x i64> @full_poison(
; CHECK-SAME: ptr [[ADD_PTR:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: call void @llvm.donothing()
; CHECK-NEXT: store <2 x i64> splat (i64 -1), ptr @__msan_retval_tls, align 8
; CHECK-NEXT: ret <2 x i64> poison
;
ret <2 x i64> <i64 poison, i64 poison>
}
define <2 x i64> @no_poison_or_undef(ptr %add.ptr) sanitize_memory {
; CHECK-LABEL: define <2 x i64> @no_poison_or_undef(
; CHECK-SAME: ptr [[ADD_PTR:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: call void @llvm.donothing()
; CHECK-NEXT: store <2 x i64> zeroinitializer, ptr @__msan_retval_tls, align 8
; CHECK-NEXT: ret <2 x i64> splat (i64 42)
;
ret <2 x i64> <i64 42, i64 42>
}
define <2 x i64> @left_undef(ptr %add.ptr) sanitize_memory {
; CHECK-LABEL: define <2 x i64> @left_undef(
; CHECK-SAME: ptr [[ADD_PTR:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: call void @llvm.donothing()
; CHECK-PRECISE: store <2 x i64> <i64 -1, i64 0>, ptr @__msan_retval_tls, align 8
; CHECK-IMPRECISE: store <2 x i64> zeroinitializer, ptr @__msan_retval_tls, align 8
; CHECK-NEXT: ret <2 x i64> <i64 undef, i64 42>
;
ret <2 x i64> <i64 undef, i64 42>
}
define <2 x i64> @right_undef(ptr %add.ptr) sanitize_memory {
; CHECK-LABEL: define <2 x i64> @right_undef(
; CHECK-SAME: ptr [[ADD_PTR:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: call void @llvm.donothing()
; CHECK-PRECISE: store <2 x i64> <i64 0, i64 -1>, ptr @__msan_retval_tls, align 8
; CHECK-IMPRECISE: store <2 x i64> zeroinitializer, ptr @__msan_retval_tls, align 8
; CHECK-NEXT: ret <2 x i64> <i64 42, i64 undef>
;
ret <2 x i64> <i64 42, i64 undef>
}
define <2 x i64> @full_undef(ptr %add.ptr) sanitize_memory {
; CHECK-LABEL: define <2 x i64> @full_undef(
; CHECK-SAME: ptr [[ADD_PTR:%.*]]) #[[ATTR0]] {
; CHECK-NEXT: call void @llvm.donothing()
; CHECK-NEXT: store <2 x i64> splat (i64 -1), ptr @__msan_retval_tls, align 8
; CHECK-NEXT: ret <2 x i64> undef
;
ret <2 x i64> <i64 undef, i64 undef>
}
define {i64, i64} @struct_left_undef() sanitize_memory {
; CHECK-LABEL: define { i64, i64 } @struct_left_undef(
; CHECK-SAME: ) #[[ATTR0]] {
; CHECK-NEXT: call void @llvm.donothing()
; CHECK-NEXT: store { i64, i64 } zeroinitializer, ptr @__msan_retval_tls, align 8
; CHECK-NEXT: ret { i64, i64 } { i64 undef, i64 42 }
;
ret {i64, i64} { i64 undef, i64 42 }
}
define [2x i64] @array_right_undef() sanitize_memory {
; CHECK-LABEL: define [2 x i64] @array_right_undef(
; CHECK-SAME: ) #[[ATTR0]] {
; CHECK-NEXT: call void @llvm.donothing()
; CHECK-NEXT: store [2 x i64] zeroinitializer, ptr @__msan_retval_tls, align 8
; CHECK-NEXT: ret [2 x i64] [i64 42, i64 undef]
;
ret [2x i64] [ i64 42, i64 undef ]
}
|
