1 // Test that outdated data is ignored.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6 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-outdated-data.c %s -o /dev/null -emit-llvm -fprofile-instr-use=%S/Inputs/c-outdated-data.profdata -Wprofile-instr-dropped 2>&1 | FileCheck %s
7 // CHECK: warning: profile data may be out of date: of 3 functions, 1 has no data and 1 has mismatched data that will be ignored
8 
9 void no_usable_data() {
10   int i = 0;
11 
12   if (i) {}
13 
14 #ifdef GENERATE_OUTDATED_DATA
15   if (i) {}
16 #endif
17 }
18 
19 #ifndef GENERATE_OUTDATED_DATA
20 void no_data() {
21 }
22 #endif
23 
24 int main(int argc, const char *argv[]) {
25   no_usable_data();
26   return 0;
27 }
28