clang/test/Modules/pch-with-module-name-import-twice.c

   1 // RUN: rm -rf %t
   2 // RUN: split-file %s %t
   3
   4 // This test checks that headers that are part of a module named by
   5 // -fmodule-name= don't get included again if previously included from a PCH.
   6
   7 //--- include/module.modulemap
   8 module Mod { header "Mod.h" }
   9 //--- include/Mod.h
  10 struct Symbol {};
  11 //--- pch.h
  12 #import "Mod.h"
  13 //--- tu.c
  14 #import "Mod.h" // expected-no-diagnostics
  15
  16 // RUN: %clang_cc1 -fmodules -fmodules-cache-path=%t/cache -fimplicit-module-maps -fmodule-name=Mod -I %t/include \
  17 // RUN:   -emit-pch -x c-header %t/pch.h -o %t/pch.pch
  18 // RUN: %clang_cc1 -fmodules -fmodules-cache-path=%t/cache -fimplicit-module-maps -fmodule-name=Mod -I %t/include \
  19 // RUN:   -fsyntax-only %t/tu.c -include-pch %t/pch.pch -verify