src/test/codegen/pgo-instrumentation.rs

   1 // Test that `-Cprofile-generate` creates expected instrumentation artifacts in LLVM IR.
   2 // Compiling with `-Cpanic=abort` because PGO+unwinding isn't supported on all platforms.
   3
   4 // needs-profiler-support
   5 // compile-flags: -Cprofile-generate -Ccodegen-units=1 -Cpanic=abort
   6
   7 // CHECK: @__llvm_profile_raw_version =
   8 // CHECK-DAG: @__profc_{{.*}}pgo_instrumentation{{.*}}some_function{{.*}} = {{.*}}global
   9 // CHECK-DAG: @__profd_{{.*}}pgo_instrumentation{{.*}}some_function{{.*}} = {{.*}}global
  10 // CHECK-DAG: @__profc_{{.*}}pgo_instrumentation{{.*}}some_other_function{{.*}} = {{.*}}global
  11 // CHECK-DAG: @__profd_{{.*}}pgo_instrumentation{{.*}}some_other_function{{.*}} = {{.*}}global
  12 // CHECK: @__llvm_profile_filename = {{.*}}"default_%m.profraw\00"{{.*}}
  13
  14 #![crate_type="lib"]
  15
  16 #[inline(never)]
  17 fn some_function() {
  18
  19 }
  20
  21 pub fn some_other_function() {
  22     some_function();
  23 }