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
|
// RUN: %clang_cc1 -triple %itanium_abi_triple %s -o - -emit-llvm -fprofile-instrument=clang -fcoverage-mapping -fcoverage-mcdc | FileCheck %s -check-prefix=MCDC
// RUN: %clang_cc1 -triple %itanium_abi_triple %s -o - -emit-llvm -fprofile-instrument=clang -fcoverage-mapping | FileCheck %s -check-prefix=NOMCDC
int test(int a, int b, int c, int d, int e, int f) {
return ((!a && b) || ((!c && d) || (e && !f)));
}
// NOMCDC-NOT: %mcdc.addr
// NOMCDC-NOT: __profbm_test
// MCDC BOOKKEEPING.
// MCDC: @__profbm_test = private global [8 x i8] zeroinitializer
// MCDC: @__profc_test = private global [9 x i64] zeroinitializer
// ALLOCATE MCDC TEMP AND ZERO IT.
// MCDC-LABEL: @test(
// MCDC: %mcdc.addr = alloca i32, align 4
// MCDC: store i32 0, ptr %mcdc.addr, align 4
// SHIFT FIRST CONDITION WITH ID = 0.
// MCDC: %[[LAB1:[0-9]+]] = load i32, ptr %a.addr, align 4
// MCDC-DAG: %[[BOOL:tobool[0-9]*]] = icmp ne i32 %[[LAB1]], 0
// MCDC-DAG: %[[LNOT:lnot[0-9]*]] = xor i1 %[[BOOL]]
// MCDC-DAG: %[[TEMP:mcdc.temp[0-9]*]] = load i32, ptr %mcdc.addr, align 4
// MCDC-DAG: %[[LAB2:[0-9]+]] = zext i1 %[[LNOT]] to i32
// MCDC-DAG: %[[LAB3:[0-9]+]] = shl i32 %[[LAB2]], 0
// MCDC-DAG: %[[LAB4:[0-9]+]] = or i32 %[[TEMP]], %[[LAB3]]
// MCDC-DAG: store i32 %[[LAB4]], ptr %mcdc.addr, align 4
// SHIFT SECOND CONDITION WITH ID = 2.
// MCDC: %[[LAB1:[0-9]+]] = load i32, ptr %b.addr, align 4
// MCDC-DAG: %[[BOOL:tobool[0-9]*]] = icmp ne i32 %[[LAB1]], 0
// MCDC-DAG: %[[TEMP:mcdc.temp[0-9]*]] = load i32, ptr %mcdc.addr, align 4
// MCDC-DAG: %[[LAB2:[0-9]+]] = zext i1 %[[BOOL]] to i32
// MCDC-DAG: %[[LAB3:[0-9]+]] = shl i32 %[[LAB2]], 2
// MCDC-DAG: %[[LAB4:[0-9]+]] = or i32 %[[TEMP]], %[[LAB3]]
// MCDC-DAG: store i32 %[[LAB4]], ptr %mcdc.addr, align 4
// SHIFT THIRD CONDITION WITH ID = 1.
// MCDC: %[[LAB1:[0-9]+]] = load i32, ptr %c.addr, align 4
// MCDC-DAG: %[[BOOL:tobool[0-9]*]] = icmp ne i32 %[[LAB1]], 0
// MCDC-DAG: %[[LNOT:lnot[0-9]*]] = xor i1 %[[BOOL]]
// MCDC-DAG: %[[TEMP:mcdc.temp[0-9]*]] = load i32, ptr %mcdc.addr, align 4
// MCDC-DAG: %[[LAB2:[0-9]+]] = zext i1 %[[LNOT]] to i32
// MCDC-DAG: %[[LAB3:[0-9]+]] = shl i32 %[[LAB2]], 1
// MCDC-DAG: %[[LAB4:[0-9]+]] = or i32 %[[TEMP]], %[[LAB3]]
// MCDC-DAG: store i32 %[[LAB4]], ptr %mcdc.addr, align 4
// SHIFT FOURTH CONDITION WITH ID = 4.
// MCDC: %[[LAB1:[0-9]+]] = load i32, ptr %d.addr, align 4
// MCDC-DAG: %[[BOOL:tobool[0-9]*]] = icmp ne i32 %[[LAB1]], 0
// MCDC-DAG: %[[TEMP:mcdc.temp[0-9]*]] = load i32, ptr %mcdc.addr, align 4
// MCDC-DAG: %[[LAB2:[0-9]+]] = zext i1 %[[BOOL]] to i32
// MCDC-DAG: %[[LAB3:[0-9]+]] = shl i32 %[[LAB2]], 4
// MCDC-DAG: %[[LAB4:[0-9]+]] = or i32 %[[TEMP]], %[[LAB3]]
// MCDC-DAG: store i32 %[[LAB4]], ptr %mcdc.addr, align 4
// SHIFT FIFTH CONDITION WITH ID = 3.
// MCDC: %[[LAB1:[0-9]+]] = load i32, ptr %e.addr, align 4
// MCDC-DAG: %[[BOOL:tobool[0-9]*]] = icmp ne i32 %[[LAB1]], 0
// MCDC-DAG: %[[TEMP:mcdc.temp[0-9]*]] = load i32, ptr %mcdc.addr, align 4
// MCDC-DAG: %[[LAB2:[0-9]+]] = zext i1 %[[BOOL]] to i32
// MCDC-DAG: %[[LAB3:[0-9]+]] = shl i32 %[[LAB2]], 3
// MCDC-DAG: %[[LAB4:[0-9]+]] = or i32 %[[TEMP]], %[[LAB3]]
// MCDC-DAG: store i32 %[[LAB4]], ptr %mcdc.addr, align 4
// SHIFT SIXTH CONDITION WITH ID = 5.
// MCDC: %[[LAB1:[0-9]+]] = load i32, ptr %f.addr, align 4
// MCDC-DAG: %[[BOOL:tobool[0-9]*]] = icmp ne i32 %[[LAB1]], 0
// MCDC-DAG: %[[LNOT:lnot[0-9]*]] = xor i1 %[[BOOL]]
// MCDC-DAG: %[[TEMP:mcdc.temp[0-9]*]] = load i32, ptr %mcdc.addr, align 4
// MCDC-DAG: %[[LAB2:[0-9]+]] = zext i1 %[[LNOT]] to i32
// MCDC-DAG: %[[LAB3:[0-9]+]] = shl i32 %[[LAB2]], 5
// MCDC-DAG: %[[LAB4:[0-9]+]] = or i32 %[[TEMP]], %[[LAB3]]
// MCDC-DAG: store i32 %[[LAB4]], ptr %mcdc.addr, align 4
// UPDATE FINAL BITMASK WITH RESULT.
// MCDC-DAG: %[[TEMP:mcdc.temp[0-9]*]] = load i32, ptr %mcdc.addr, align 4
// MCDC: %[[LAB1:[0-9]+]] = lshr i32 %[[TEMP]], 3
// MCDC: %[[LAB2:[0-9]+]] = zext i32 %[[LAB1]] to i64
// MCDC: %[[LAB3:[0-9]+]] = add i64 ptrtoint (ptr @__profbm_test to i64), %[[LAB2]]
// MCDC: %[[LAB4:[0-9]+]] = inttoptr i64 %[[LAB3]] to ptr
// MCDC: %[[LAB5:[0-9]+]] = and i32 %[[TEMP]], 7
// MCDC: %[[LAB6:[0-9]+]] = trunc i32 %[[LAB5]] to i8
// MCDC: %[[LAB7:[0-9]+]] = shl i8 1, %[[LAB6]]
// MCDC: %mcdc.bits = load i8, ptr %[[LAB4]], align 1
// MCDC: %[[LAB8:[0-9]+]] = or i8 %mcdc.bits, %[[LAB7]]
// MCDC: store i8 %[[LAB8]], ptr %[[LAB4]], align 1
|
