1; RUN: opt < %s -dfsan -dfsan-combine-pointer-labels-on-store=1 -S | FileCheck %s --check-prefixes=CHECK,COMBINE_PTR_LABEL
2; RUN: opt < %s -dfsan -dfsan-combine-pointer-labels-on-store=0 -S | FileCheck %s --check-prefixes=CHECK,NO_COMBINE_PTR_LABEL
3target 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"
4target triple = "x86_64-unknown-linux-gnu"
5
6; CHECK: @__dfsan_shadow_width_bits = weak_odr constant i32 [[#SBITS:]]
7; CHECK: @__dfsan_shadow_width_bytes = weak_odr constant i32 [[#SBYTES:]]
8
9define void @store0({} %v, {}* %p) {
10  ; CHECK-LABEL: @store0.dfsan
11  ; CHECK:       store {} %v, {}* %p
12  ; CHECK-NOT:   store
13  ; CHECK:       ret void
14
15  store {} %v, {}* %p
16  ret void
17}
18
19define void @store8(i8 %v, i8* %p) {
20  ; CHECK-LABEL:       @store8.dfsan
21  ; CHECK:             load i[[#SBITS]], i[[#SBITS]]* {{.*}} @__dfsan_arg_tls
22  ; COMBINE_PTR_LABEL: load i[[#SBITS]], i[[#SBITS]]* {{.*}} @__dfsan_arg_tls
23  ; COMBINE_PTR_LABEL: or i[[#SBITS]]
24  ; CHECK:             ptrtoint i8* {{.*}} i64
25  ; CHECK-NEXT:        xor i64
26  ; CHECK-NEXT:        inttoptr i64 {{.*}} i[[#SBITS]]*
27  ; CHECK-NEXT:        getelementptr i[[#SBITS]], i[[#SBITS]]*
28  ; CHECK-NEXT:        store i[[#SBITS]]
29  ; CHECK-NEXT:        store i8 %v, i8* %p
30  ; CHECK-NEXT:        ret void
31
32  store i8 %v, i8* %p
33  ret void
34}
35
36define void @store16(i16 %v, i16* %p) {
37  ; CHECK-LABEL:       @store16.dfsan
38  ; CHECK:             load i[[#SBITS]], i[[#SBITS]]* {{.*}} @__dfsan_arg_tls
39  ; COMBINE_PTR_LABEL: load i[[#SBITS]], i[[#SBITS]]* {{.*}} @__dfsan_arg_tls
40  ; COMBINE_PTR_LABEL: or i[[#SBITS]]
41  ; CHECK:             ptrtoint i16* {{.*}} i64
42  ; CHECK-NEXT:        xor i64
43  ; CHECK-NEXT:        inttoptr i64 {{.*}} i[[#SBITS]]*
44  ; CHECK-NEXT:        getelementptr i[[#SBITS]], i[[#SBITS]]*
45  ; CHECK-NEXT:        store i[[#SBITS]]
46  ; CHECK-NEXT:        getelementptr i[[#SBITS]], i[[#SBITS]]*
47  ; CHECK-NEXT:        store i[[#SBITS]]
48  ; CHECK-NEXT:        store i16 %v, i16* %p
49  ; CHECK-NEXT:        ret void
50
51  store i16 %v, i16* %p
52  ret void
53}
54
55define void @store32(i32 %v, i32* %p) {
56  ; CHECK-LABEL:       @store32.dfsan
57  ; CHECK:             load i[[#SBITS]], i[[#SBITS]]* {{.*}} @__dfsan_arg_tls
58  ; COMBINE_PTR_LABEL: load i[[#SBITS]], i[[#SBITS]]* {{.*}} @__dfsan_arg_tls
59  ; COMBINE_PTR_LABEL: or i[[#SBITS]]
60  ; CHECK:             ptrtoint i32* {{.*}} i64
61  ; CHECK-NEXT:        xor i64
62  ; CHECK-NEXT:        inttoptr i64 {{.*}} i[[#SBITS]]*
63  ; CHECK-NEXT:        getelementptr i[[#SBITS]], i[[#SBITS]]*
64  ; CHECK-NEXT:        store i[[#SBITS]]
65  ; CHECK-NEXT:        getelementptr i[[#SBITS]], i[[#SBITS]]*
66  ; CHECK-NEXT:        store i[[#SBITS]]
67  ; CHECK-NEXT:        getelementptr i[[#SBITS]], i[[#SBITS]]*
68  ; CHECK-NEXT:        store i[[#SBITS]]
69  ; CHECK-NEXT:        getelementptr i[[#SBITS]], i[[#SBITS]]*
70  ; CHECK-NEXT:        store i[[#SBITS]]
71  ; CHECK-NEXT:        store i32 %v, i32* %p
72  ; CHECK-NEXT:        ret void
73
74  store i32 %v, i32* %p
75  ret void
76}
77
78define void @store64(i64 %v, i64* %p) {
79  ; CHECK-LABEL:       @store64.dfsan
80  ; CHECK:             load i[[#SBITS]], i[[#SBITS]]* {{.*}} @__dfsan_arg_tls
81  ; COMBINE_PTR_LABEL: load i[[#SBITS]], i[[#SBITS]]* {{.*}} @__dfsan_arg_tls
82  ; COMBINE_PTR_LABEL: or i[[#SBITS]]
83  ; CHECK:             ptrtoint i64* {{.*}} i64
84  ; CHECK-NEXT:        xor i64
85  ; CHECK-NEXT:        inttoptr i64 {{.*}} i[[#SBITS]]*
86  ; CHECK-COUNT-8:     insertelement {{.*}} i[[#SBITS]]
87  ; CHECK-NEXT:        bitcast i[[#SBITS]]* {{.*}} <8 x i[[#SBITS]]>*
88  ; CHECK-NEXT:        getelementptr <8 x i[[#SBITS]]>
89  ; CHECK-NEXT:        store <8 x i[[#SBITS]]>
90  ; CHECK-NEXT:        store i64 %v, i64* %p
91  ; CHECK-NEXT:        ret void
92
93  store i64 %v, i64* %p
94  ret void
95}
96
97define void @store_zero(i32* %p) {
98  ; CHECK-LABEL:          @store_zero.dfsan
99  ; NO_COMBINE_PTR_LABEL: bitcast i[[#SBITS]]* {{.*}} to i[[#mul(4, SBITS)]]*
100  ; NO_COMBINE_PTR_LABEL: store i[[#mul(4, SBITS)]] 0, i[[#mul(4, SBITS)]]* {{.*}}
101  store i32 0, i32* %p
102  ret void
103}
104