clang/test/Interpreter/delayed-template-parsing-pch.cpp

   1 // Test the setup without incremental extensions first
   2 // RUN: %clang_cc1 -std=c++17 -fdelayed-template-parsing -fpch-instantiate-templates %s -emit-pch -o %t.pch -verify
   3 // RUN: %clang_cc1 -std=c++17 -fdelayed-template-parsing -include-pch %t.pch %s -verify
   4
   5 // RUN: %clang_cc1 -std=c++17 -fdelayed-template-parsing -fincremental-extensions -fpch-instantiate-templates %s -emit-pch -o %t.incremental.pch -verify
   6 // RUN: %clang_cc1 -std=c++17 -fdelayed-template-parsing -fincremental-extensions -include-pch %t.incremental.pch %s -verify
   7
   8 // expected-no-diagnostics
   9
  10 #ifndef PCH
  11 #define PCH
  12
  13 // Have one template that is instantiated in the PCH (via the passed option
  14 // -fpch-instantiate-templates) and then serialized
  15 template <typename T> T ft1() { return 0; }
  16 inline int f1() { return ft1<int>(); }
  17
  18 // Have a second late-parsed template that needs to be deserialized
  19 template <typename T> T ft2() { return 0; }
  20
  21 #else
  22
  23 int f2() { return ft2<int>(); }
  24
  25 #endif