clang/test/CodeGen/pgo-cold-function-coverage.c

   1 // Test -fprofile-generate-cold-function-coverage
   2
   3 // RUN: rm -rf %t && split-file %s %t
   4 // RUN: %clang --target=x86_64 -O2 -fprofile-generate-cold-function-coverage=/xxx/yyy/ -fprofile-sample-accurate -fprofile-sample-use=%t/pgo-cold-func.prof  -S -emit-llvm -o - %t/pgo-cold-func.c | FileCheck %s
   5
   6 // CHECK: @__llvm_profile_filename = {{.*}} c"/xxx/yyy/default_%m.profraw\00"
   7
   8 // CHECK: store i8 0, ptr @__profc_bar, align 1
   9 // CHECK-NOT: @__profc_foo
  10
  11 //--- pgo-cold-func.prof
  12 foo:1:1
  13  1: 1
  14
  15 //--- pgo-cold-func.c
  16 int bar(int x) { return x;}
  17 int foo(int x) {
  18     return x;
  19 }