1// Test that outdated data is ignored.
2
3// FIXME: It would be nice to use -verify here instead of FileCheck, but -verify
4// doesn't play well with warnings that have no line number.
5
6// RUN: llvm-profdata merge %S/Inputs/c-outdated-data.proftext -o %t.profdata
7// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-outdated-data.c %s -o /dev/null -emit-llvm -fprofile-instr-use=%t.profdata -Wprofile-instr-dropped 2>&1 | FileCheck %s
8// CHECK: warning: profile data may be out of date: of 3 functions, 1 has no data and 1 has mismatched data that will be ignored
9
10void no_usable_data() {
11  int i = 0;
12
13  if (i) {}
14
15#ifdef GENERATE_OUTDATED_DATA
16  if (i) {}
17#endif
18}
19
20#ifndef GENERATE_OUTDATED_DATA
21void no_data() {
22}
23#endif
24
25int main(int argc, const char *argv[]) {
26  no_usable_data();
27  return 0;
28}
29