1// RUN: %clang_profgen -O2 -o %t %s
2// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
3// RUN: llvm-profdata merge -o %t.profdata %t.profraw
4// RUN: llvm-profdata show --all-functions -ic-targets %t.profdata > %t.out
5// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-1 < %t.out
6// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-2 < %t.out
7// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-3 < %t.out
8// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-4 < %t.out
9// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-5 < %t.out
10// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-6 < %t.out
11
12#include <stdint.h>
13#include <stdio.h>
14#include <stdlib.h>
15typedef struct __llvm_profile_data __llvm_profile_data;
16const __llvm_profile_data *__llvm_profile_begin_data(void);
17const __llvm_profile_data *__llvm_profile_end_data(void);
18void __llvm_profile_set_num_value_sites(__llvm_profile_data *Data,
19 uint32_t ValueKind,
20 uint16_t NumValueSites);
21__llvm_profile_data *
22__llvm_profile_iterate_data(const __llvm_profile_data *Data);
23void *__llvm_get_function_addr(const __llvm_profile_data *Data);
24void __llvm_profile_instrument_target(uint64_t TargetValue, void *Data,
25 uint32_t CounterIndex);
26void callee1() {}
27void callee2() {}
28
29void caller_without_value_site1() {}
30void caller_with_value_site_never_called1() {}
31void caller_with_vp1() {}
32void caller_with_value_site_never_called2() {}
33void caller_without_value_site2() {}
34void caller_with_vp2() {}
35
36void (*callee1Ptr)();
37void (*callee2Ptr)();
38
39void __attribute__ ((noinline)) setFunctionPointers () {
40 callee1Ptr = callee1;
41 callee2Ptr = callee2;
42}
43
44int main(int argc, const char *argv[]) {
45 unsigned S, NS = 10, V;
46 const __llvm_profile_data *Data, *DataEnd;
47
48 setFunctionPointers();
49 Data = __llvm_profile_begin_data();
50 DataEnd = __llvm_profile_end_data();
51 for (; Data < DataEnd; Data = __llvm_profile_iterate_data(Data)) {
52 void *func = __llvm_get_function_addr(Data);
53 if (func == caller_without_value_site1 ||
54 func == caller_without_value_site2 ||
55 func == callee1 || func == callee2 || func == main)
56 continue;
57
58 __llvm_profile_set_num_value_sites((__llvm_profile_data *)Data,
59 0 /*IPVK_IndirectCallTarget */, 10);
60
61 if (func == caller_with_value_site_never_called1 ||
62 func == caller_with_value_site_never_called2)
63 continue;
64 for (S = 0; S < NS; S++) {
65 unsigned C;
66 for (C = 0; C < S + 1; C++) {
67 __llvm_profile_instrument_target((uint64_t)callee1Ptr, (void *)Data, S);
68 if (C % 2 == 0)
69 __llvm_profile_instrument_target((uint64_t)callee2Ptr, (void *)Data, S);
70 }
71 }
72 }
73}
74
75// CHECK: Counters:
76// CHECK-1-LABEL: caller_with_value_site_never_called2:
77// CHECK-1-NEXT: Hash: 0x0000000000000000
78// CHECK-1-NEXT: Counters:
79// CHECK-1-NEXT: Function count
80// CHECK-1-NEXT: Indirect Call Site Count: 10
81// CHECK-1-NEXT: Indirect Target Results:
82// CHECK-2-LABEL: caller_with_vp2:
83// CHECK-2-NEXT: Hash: 0x0000000000000000
84// CHECK-2-NEXT: Counters:
85// CHECK-2-NEXT: Function count:
86// CHECK-2-NEXT: Indirect Call Site Count: 10
87// CHECK-2-NEXT: Indirect Target Results:
88// CHECK-2-NEXT: [ 0, callee1, 1 ]
89// CHECK-2-NEXT: [ 0, callee2, 1 ]
90// CHECK-2-NEXT: [ 1, callee1, 2 ]
91// CHECK-2-NEXT: [ 1, callee2, 1 ]
92// CHECK-2-NEXT: [ 2, callee1, 3 ]
93// CHECK-2-NEXT: [ 2, callee2, 2 ]
94// CHECK-2-NEXT: [ 3, callee1, 4 ]
95// CHECK-2-NEXT: [ 3, callee2, 2 ]
96// CHECK-2-NEXT: [ 4, callee1, 5 ]
97// CHECK-2-NEXT: [ 4, callee2, 3 ]
98// CHECK-2-NEXT: [ 5, callee1, 6 ]
99// CHECK-2-NEXT: [ 5, callee2, 3 ]
100// CHECK-2-NEXT: [ 6, callee1, 7 ]
101// CHECK-2-NEXT: [ 6, callee2, 4 ]
102// CHECK-2-NEXT: [ 7, callee1, 8 ]
103// CHECK-2-NEXT: [ 7, callee2, 4 ]
104// CHECK-2-NEXT: [ 8, callee1, 9 ]
105// CHECK-2-NEXT: [ 8, callee2, 5 ]
106// CHECK-2-NEXT: [ 9, callee1, 10 ]
107// CHECK-2-NEXT: [ 9, callee2, 5 ]
108// CHECK-3-LABEL: caller_with_vp1:
109// CHECK-3-NEXT: Hash: 0x0000000000000000
110// CHECK-3-NEXT: Counters:
111// CHECK-3-NEXT: Function count
112// CHECK-3-NEXT: Indirect Call Site Count: 10
113// CHECK-3-NEXT: Indirect Target Results:
114// CHECK-3-NEXT: [ 0, callee1, 1 ]
115// CHECK-3-NEXT: [ 0, callee2, 1 ]
116// CHECK-3-NEXT: [ 1, callee1, 2 ]
117// CHECK-3-NEXT: [ 1, callee2, 1 ]
118// CHECK-3-NEXT: [ 2, callee1, 3 ]
119// CHECK-3-NEXT: [ 2, callee2, 2 ]
120// CHECK-3-NEXT: [ 3, callee1, 4 ]
121// CHECK-3-NEXT: [ 3, callee2, 2 ]
122// CHECK-3-NEXT: [ 4, callee1, 5 ]
123// CHECK-3-NEXT: [ 4, callee2, 3 ]
124// CHECK-3-NEXT: [ 5, callee1, 6 ]
125// CHECK-3-NEXT: [ 5, callee2, 3 ]
126// CHECK-3-NEXT: [ 6, callee1, 7 ]
127// CHECK-3-NEXT: [ 6, callee2, 4 ]
128// CHECK-3-NEXT: [ 7, callee1, 8 ]
129// CHECK-3-NEXT: [ 7, callee2, 4 ]
130// CHECK-3-NEXT: [ 8, callee1, 9 ]
131// CHECK-3-NEXT: [ 8, callee2, 5 ]
132// CHECK-3-NEXT: [ 9, callee1, 10 ]
133// CHECK-3-NEXT: [ 9, callee2, 5 ]
134// CHECK-4-LABEL: caller_with_value_site_never_called1:
135// CHECK-4-NEXT: Hash: 0x0000000000000000
136// CHECK-4-NEXT: Counters:
137// CHECK-4-NEXT: Function count:
138// CHECK-4-NEXT: Indirect Call Site Count: 10
139// CHECK-4-NEXT: Indirect Target Results:
140// CHECK-5-LABEL: caller_without_value_site2:
141// CHECK-5-NEXT: Hash: 0x0000000000000000
142// CHECK-5-NEXT: Counters:
143// CHECK-5-NEXT: Function count:
144// CHECK-5-NEXT: Indirect Call Site Count: 0
145// CHECK-5-NEXT: Indirect Target Results:
146// CHECK-6-LABEL: caller_without_value_site1:
147// CHECK-6-NEXT: Hash: 0x0000000000000000
148// CHECK-6-NEXT: Counters:
149// CHECK-6-NEXT: Function count:
150// CHECK-6-NEXT: Indirect Call Site Count: 0
151// CHECK-6-NEXT: Indirect Target Results:
152