1// REQUIRES: osx-ld64-live_support
2// REQUIRES: lto
3
4// RUN: %clang_profgen=%t.profraw -fcoverage-mapping -mllvm -enable-name-compression=false -DCODE=1 -Wl,-dead_strip -o %t %s
5// RUN: %run %t
6// RUN: llvm-profdata merge -o %t.profdata %t.profraw
7// RUN: llvm-profdata show --all-functions %t.profdata | FileCheck %s -check-prefix=PROF
8// RUN: llvm-cov show %t -instr-profile %t.profdata | FileCheck %s -check-prefix=COV
9// RUN: nm %t | FileCheck %s -check-prefix=NM
10// RUN: otool -s __DATA __llvm_prf_names %t | FileCheck %s -check-prefix=PRF_NAMES
11// RUN: otool -s __DATA __llvm_prf_cnts %t | FileCheck %s -check-prefix=PRF_CNTS
12
13// RUN: %clang_lto_profgen=%t.lto.profraw -fcoverage-mapping -mllvm -enable-name-compression=false -DCODE=1 -Wl,-dead_strip -flto -o %t.lto %s
14// RUN: %run %t.lto
15// RUN: llvm-profdata merge -o %t.lto.profdata %t.lto.profraw
16// RUN: llvm-profdata show --all-functions %t.lto.profdata | FileCheck %s -check-prefix=PROF
17// RUN: llvm-cov show %t.lto -instr-profile %t.lto.profdata | FileCheck %s -check-prefix=COV
18// RUN: nm %t.lto | FileCheck %s -check-prefix=NM
19// RUN: otool -s __DATA __llvm_prf_names %t.lto | FileCheck %s -check-prefix=PRF_NAMES
20// RUN: otool -s __DATA __llvm_prf_cnts %t.lto | FileCheck %s -check-prefix=PRF_CNTS
21
22// Note: We expect foo() and some of the profiling data associated with it to
23// be dead-stripped.
24
25// Note: When there is no code in a program, we expect to see the exact same
26// set of external functions provided by the profile runtime.
27
28// RUN: %clang_profgen -fcoverage-mapping -Wl,-dead_strip -dynamiclib -o %t.nocode.dylib %s
29// RUN: nm -jgU %t.nocode.dylib > %t.nocode.syms
30// RUN: nm -jgU %t | grep -vE "main|foo|mh_execute_header" > %t.code.syms
31// RUN: diff %t.nocode.syms %t.code.syms
32
33#ifdef CODE
34
35// COV: [[@LINE+1]]{{ *}}|{{ *}}0|void foo()
36void foo() {}
37
38// COV: [[@LINE+1]]{{ *}}|{{ *}}1|int main
39int main() { return 0; }
40
41#endif // CODE
42
43// NM-NOT: foo
44
45// PROF: Counters:
46// PROF-NEXT: main:
47// PROF-NEXT: Hash:
48// PROF-NEXT: Counters: 1
49// PROF-NEXT: Function count: 1
50// PROF-NEXT: Instrumentation level: Front-end
51// PROF-NEXT: Functions shown: 1
52// PROF-NEXT: Total functions: 1
53// PROF-NEXT: Maximum function count: 1
54// PROF-NEXT: Maximum internal block count: 0
55
56// Note: We don't expect the names of dead-stripped functions to disappear from
57// __llvm_prf_names, because collectPGOFuncNameStrings() glues the names
58// together.
59
60// PRF_NAMES: Contents of (__DATA,__llvm_prf_names) section
61// PRF_NAMES-NEXT: {{.*}} 08 00 66 6f 6f 01 6d 61 69 6e{{ +$}}
62// | | f o o # m a i n
63// | |___________|
64// | |
65// UncompressedLen = 8 |
66// |
67// CompressedLen = 0
68
69// Note: We expect the profile counters for dead-stripped functions to also be
70// dead-stripped.
71
72// PRF_CNTS: Contents of (__DATA,__llvm_prf_cnts) section
73// PRF_CNTS-NEXT: {{.*}} 00 00 00 00 00 00 00 00{{ +$}}
74