1 // RUN: rm -rf %t
2 
3 // First, build two modules that both re-export the same header.
4 // RUN: %clang_cc1 -x c++ -std=c++11 -fmodules -fimplicit-module-maps -fmodule-name=b -o %t/b.pcm \
5 // RUN:     -emit-module %S/Inputs/merge-vtable-codegen/merge-vtable-codegen.modulemap \
6 // RUN:     -I %S/Inputs/merge-vtable-codegen
7 // RUN: %clang_cc1 -x c++ -std=c++11 -fmodules -fimplicit-module-maps -fmodule-name=c -o %t/c.pcm \
8 // RUN:     -emit-module %S/Inputs/merge-vtable-codegen/merge-vtable-codegen.modulemap \
9 // RUN:     -I %S/Inputs/merge-vtable-codegen
10 
11 // Use the two modules in a single compile.
12 // RUN: %clang_cc1 -x c++ -std=c++11 -fmodules -fimplicit-module-maps -fmodule-file=%t/b.pcm -fmodule-file=%t/c.pcm \
13 // RUN:     -fmodule-map-file=%S/Inputs/merge-vtable-codegen/merge-vtable-codegen.modulemap \
14 // RUN:     -emit-llvm -o %t/test.o %s
15 
16 // Note that order is important:
17 // Module 'c' just reexports A, while module 'b' defines a method that uses a
18 // virtual method of A.
19 #include "Inputs/merge-vtable-codegen/c.h"
20 #include "Inputs/merge-vtable-codegen/b.h"
21 
t()22 void t() {
23   b(nullptr);
24 }
25