1// RUN: rm -f %t.profraw
2// RUN: %clang_profgen -o %t -O3 %s
3// RUN: %run %t %t.profraw
4// RUN: llvm-profdata merge -o %t.profdata %t.profraw
5// RUN: %clang_profuse=%t.profdata -o - -S -emit-llvm %s | FileCheck %s
6
7int __llvm_profile_runtime = 0;
8int __llvm_profile_register_write_file_atexit(void);
9void __llvm_profile_set_filename(const char *);
10int main(int argc, const char *argv[]) {
11 __llvm_profile_register_write_file_atexit();
12 // CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD1:[0-9]+]]
13 if (argc < 2)
14 return 1;
15 __llvm_profile_set_filename(argv[1]);
16 return 0;
17}
18// CHECK: ![[PD1]] = !{!"branch_weights", i32 1, i32 2}
19

source code of compiler-rt/test/profile/instrprof-write-file-atexit-explicitly.c