clang/test/Profile/c-collision.c

   1 // Test that a slight change in the code leads to a different hash.
   2 // RUN: %clang_cc1 -UEXTRA -triple x86_64-unknown-linux-gnu -main-file-name c-collision.c %s -o - -emit-llvm -fprofile-instrument=clang | FileCheck %s --check-prefix=CHECK-NOEXTRA
   3 // RUN: %clang_cc1 -DEXTRA -triple x86_64-unknown-linux-gnu -main-file-name c-collision.c %s -o - -emit-llvm -fprofile-instrument=clang | FileCheck %s --check-prefix=CHECK-EXTRA
   4
   5 // CHECK-NOEXTRA: @__profd_foo = private global { {{.*}} } { i64 6699318081062747564, i64 7156072912471487002,
   6 // CHECK-EXTRA:   @__profd_foo = private global { {{.*}} } { i64 6699318081062747564, i64 -4383447408116050035,
   7
   8 extern int bar;
   9 void foo(void) {
  10   if (bar) {
  11   }
  12   if (bar) {
  13   }
  14   if (bar) {
  15     if (bar) {
  16 #ifdef EXTRA
  17       if (bar) {
  18       }
  19 #endif
  20     }
  21   }
  22 }