clang/test/PCH/headersearch.cpp

   1 // Test reading of PCH with changed location of original input files,
   2 // i.e. invoking header search.
   3
   4 // Generate the original files:
   5 // RUN: rm -rf %t_orig %t_moved
   6 // RUN: mkdir -p %t_orig/sub %t_orig/sub2
   7 // RUN: echo 'struct orig_sub{char c; int i; };' > %t_orig/sub/orig_sub.h
   8 // RUN: echo 'void orig_sub2_1();' > %t_orig/sub2/orig_sub2_1.h
   9 // RUN: echo '#include "orig_sub2_1.h"' > %t_orig/sub2/orig_sub2.h
  10 // RUN: echo 'template <typename T> void tf() { orig_sub2_1(); T::foo(); }' >> %t_orig/sub2/orig_sub2.h
  11 // RUN: echo 'void foo() {}' > %t_orig/tmp2.h
  12 // RUN: echo '#include "tmp2.h"' > %t_orig/all.h
  13 // RUN: echo '#include "sub/orig_sub.h"' >> %t_orig/all.h
  14 // RUN: echo '#include "orig_sub2.h"' >> %t_orig/all.h
  15 // RUN: echo 'int all();' >> %t_orig/all.h
  16
  17 // This test relies on -Wpadded, which is only implemented for Itanium record
  18 // layout.
  19
  20 // Generate the PCH:
  21 // RUN: cd %t_orig && %clang_cc1 -triple %itanium_abi_triple -x c++ -emit-pch -o all.h.pch -Isub2 all.h
  22 // RUN: cp -R %t_orig %t_moved
  23
  24 // Check diagnostic with location in original source:
  25 // RUN: %clang_cc1 -triple %itanium_abi_triple -include-pch all.h.pch -I%t_moved -I%t_moved/sub2 -Wpadded -emit-llvm-only %s 2> %t.stderr
  26 // RUN: grep 'struct orig_sub' %t.stderr
  27
  28 // Check diagnostic with 2nd location in original source:
  29 // RUN: not %clang_cc1 -triple %itanium_abi_triple -DREDECL -include-pch all.h.pch -I%t_moved -I%t_moved/sub2 -emit-llvm-only %s 2> %t.stderr
  30 // RUN: grep 'void foo' %t.stderr
  31
  32 // Check diagnostic with instantiation location in original source:
  33 // RUN: not %clang_cc1 -triple %itanium_abi_triple -DINSTANTIATION -include-pch all.h.pch -I%t_moved -I%t_moved/sub2 -emit-llvm-only %s 2> %t.stderr
  34 // RUN: grep 'orig_sub2_1' %t.stderr
  35
  36 void qq(orig_sub) {all();}
  37
  38 #ifdef REDECL
  39 float foo() {return 0;}
  40 #endif
  41
  42 #ifdef INSTANTIATION
  43 void f() {
  44   tf<int>();
  45 }
  46 #endif