1 // Test reading of PCH without original input files.
2 
3 // Generate the PCH, removing the original file:
4 // RUN: echo 'struct S{char c; int i; }; void foo() {}' > %t.h
5 // RUN: echo 'template <typename T> void tf() { T::foo(); }' >> %t.h
6 // RUN: %clang_cc1 -x c++ -emit-pch -o %t.h.pch %t.h
7 
8 // %t.h might be touched by scanners as a hot file on Windows,
9 // to fail to remove %.h with single run.
10 // RUN: rm %t.h || rm %t.h || rm %t.h
11 
12 // Check diagnostic with location in original source:
13 // RUN: %clang_cc1 -include-pch %t.h.pch -Wpadded -emit-obj -o %t.o %s 2> %t.stderr
14 // RUN: grep 'bytes to align' %t.stderr
15 
16 // Check diagnostic with 2nd location in original source:
17 // RUN: not %clang_cc1 -DREDECL -include-pch %t.h.pch -emit-obj -o %t.o %s 2> %t.stderr
18 // RUN: grep 'previous definition is here' %t.stderr
19 
20 // Check diagnostic with instantiation location in original source:
21 // RUN: not %clang_cc1 -DINSTANTIATION -include-pch %t.h.pch -emit-obj -o %t.o %s 2> %t.stderr
22 // RUN: grep 'cannot be used prior to' %t.stderr
23 
24 void qq(S*) {}
25 
26 #ifdef REDECL
27 float foo() {return 0f;}
28 #endif
29 
30 #ifdef INSTANTIATION
31 void f() {
32   tf<int>();
33 }
34 #endif
35