clang/test/Profile/func-entry.c

   1 // Test that function entry counts are set correctly.
   2
   3 // RUN: llvm-profdata merge %S/Inputs/func-entry.proftext -o %t.profdata
   4 // RUN: %clang_cc1 %s -o - -disable-llvm-passes -emit-llvm -fprofile-instrument-use-path=%t.profdata | FileCheck %s
   5
   6 void foo(void);
   7
   8 // CHECK: @foo() #{{[0-9]}} !prof [[FOO:![0-9]+]]
   9 void foo() { return; }
  10
  11 // CHECK: @main() #{{[0-9]}} !prof [[MAIN:![0-9]+]]
  12 int main() {
  13   int i;
  14   for (i = 0; i < 10000; i++) foo();
  15   return 0;
  16 }
  17
  18 // CHECK: [[FOO]] = !{!"function_entry_count", i64 1000}
  19 // CHECK: [[MAIN]] = !{!"function_entry_count", i64 1}