clang/test/Profile/c-unprofiled.c

   1 // Test that unprofiled files are recognized. Here, we have two functions in the
   2 // profile, main() and function_in_header, but we use the profile on a file that
   3 // has the profile-less some_unprofiled_function so that the only profiled code
   4 // in #included in a header.
   5
   6 // FIXME: It would be nice to use -verify here instead of FileCheck, but -verify
   7 // doesn't play well with warnings that have no line number.
   8
   9 // RUN: llvm-profdata merge %S/Inputs/c-unprofiled.proftext -o %t.profdata
  10 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.9 -main-file-name c-unprofiled.c -I %S/Inputs/ %s -o /dev/null -emit-llvm -fprofile-instrument-use-path=%t.profdata -Wprofile-instr-unprofiled 2>&1 | FileCheck %s
  11
  12 // CHECK: warning: no profile data available for file "c-unprofiled.c"
  13
  14 #include "profiled_header.h"
  15
  16 #ifdef GENERATE_OUTDATED_DATA
  17 int main(int argc, const char *argv[]) {
  18   function_in_header(0);
  19   return 0;
  20 }
  21 #else
  22 void some_unprofiled_function(int i) {
  23   if (i)
  24     function_in_header(i);
  25 }
  26 #endif