4a7be42d92
Currently there is a -emit-header-module mode, which can combine several headers together as a module interface. However, this breaks our assumption (for standard c++ modules) about module interface. The module interface should come from a module interface unit. And if it is a header, it should be a header unit. And currently we have no ideas to combine several headers together. So I think this mode is an experimental one and it is not maintained and it is not used. So it will be better to remove them. Reviewed By: Bigcheese, dblaikie, bruno Differential Revision: https://reviews.llvm.org/D137609
43 lines
1.6 KiB
C++
43 lines
1.6 KiB
C++
// RUN: rm -rf %t
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// RUN: mkdir %t
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// Check compiling a module interface to a .pcm file.
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//
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// RUN: %clang -std=c++2a -x c++-module --precompile %s -o %t/module.pcm -v 2>&1 | FileCheck %s --check-prefix=CHECK-PRECOMPILE
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//
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// CHECK-PRECOMPILE: -cc1 {{.*}} -emit-module-interface
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// CHECK-PRECOMPILE-SAME: -o {{.*}}.pcm
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// CHECK-PRECOMPILE-SAME: -x c++
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// CHECK-PRECOMPILE-SAME: modules.cpp
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// Check compiling a .pcm file to a .o file.
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//
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// RUN: %clang -std=c++2a %t/module.pcm -S -o %t/module.pcm.o -v 2>&1 | FileCheck %s --check-prefix=CHECK-COMPILE
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//
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// CHECK-COMPILE: -cc1 {{.*}} {{-emit-obj|-S}}
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// CHECK-COMPILE-SAME: -o {{.*}}module{{2*}}.pcm.o
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// CHECK-COMPILE-SAME: -x pcm
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// CHECK-COMPILE-SAME: {{.*}}.pcm
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// Check use of a .pcm file in another compilation.
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//
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// RUN: %clang -std=c++2a -fmodule-file=%t/module.pcm -Dexport= %s -S -o %t/module.o -v 2>&1 | FileCheck %s --check-prefix=CHECK-USE
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// RUN: %clang -std=c++20 -fmodule-file=%t/module.pcm -Dexport= %s -S -o %t/module.o -v 2>&1 | FileCheck %s --check-prefix=CHECK-USE
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//
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// CHECK-USE: -cc1
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// CHECK-USE-SAME: {{-emit-obj|-S}}
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// CHECK-USE-SAME: -fmodule-file={{.*}}.pcm
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// CHECK-USE-SAME: -o {{.*}}.{{o|s}}{{"?}} {{.*}}-x c++
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// CHECK-USE-SAME: modules.cpp
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// Check combining precompile and compile steps works.
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//
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// RUN: %clang -std=c++2a -x c++-module %s -S -o %t/module2.pcm.o -v 2>&1 | FileCheck %s --check-prefix=CHECK-PRECOMPILE --check-prefix=CHECK-COMPILE
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// Check that .cppm is treated as a module implicitly.
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//
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// RUN: cp %s %t/module.cppm
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// RUN: %clang -std=c++2a --precompile %t/module.cppm -o %t/module.pcm -v 2>&1 | FileCheck %s --check-prefix=CHECK-PRECOMPILE
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export module foo;
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