1 // Test generation and import of simple C++20 Header Units. 2 3 // RUN: rm -rf %t 4 // RUN: mkdir -p %t 5 // RUN: split-file %s %t 6 // RUN: cd %t 7 8 // RUN: not %clang_cc1 -std=c++20 -emit-header-unit \ 9 // RUN: -xc++-header-unit-header hu-01.hh \ 10 // RUN: -xc++-header-unit-header hu-02.hh \ 11 // RUN: -o hu-01.pcm -verify 2>&1 | FileCheck %s 12 13 // CHECK: (frontend): multiple inputs are not valid for header units (first extra 'hu-02.hh') 14 15 //--- hu-01.hh 16 int foo(int); 17 18 //--- hu-02.hh 19 int bar(int); 20