1 // Test that outdated data is ignored.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6 // RUN: llvm-profdata merge %S/Inputs/c-outdated-data.proftext -o %t.profdata
7 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-outdated-data.c %s -o /dev/null -emit-llvm -fprofile-instrument-use-path=%t.profdata 2>&1 | FileCheck %s -check-prefix=NO_MISSING
8 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-outdated-data.c %s -o /dev/null -emit-llvm -Wprofile-instr-missing -fprofile-instrument-use-path=%t.profdata 2>&1 | FileCheck %s -check-prefix=WITH_MISSING
9 
10 // NO_MISSING: warning: profile data may be out of date: of 3 functions, 1 has mismatched data that will be ignored
11 // NO_MISSING-NOT: 1 has no data
12 
13 // WITH_MISSING: warning: profile data may be out of date: of 3 functions, 1 has mismatched data that will be ignored
14 // WITH_MISSING: warning: profile data may be incomplete: of 3 functions, 1 has no data
15 
16 void no_usable_data() {
17   int i = 0;
18 
19   if (i) {}
20 }
21 
22 void no_data() {
23 }
24 
25 int main(int argc, const char *argv[]) {
26   no_usable_data();
27   return 0;
28 }
29