72c29fa9e2
We required the file name of an 'importable module unit' should end with .cppm (or .ccm, .cxxm, .c++m). But the driver can accept '-fmodule-output' for files with normal suffixes (e.g., .cpp). This is somewhat inconsistency. In this patch, we only claim the option `-fmodule-output` is used if the type of the input file is modules related. Then now the compiler will emit 'unused argument' warnings if the input file is not modules related.
66 lines
3.5 KiB
C++
66 lines
3.5 KiB
C++
// It is annoying to handle different slash direction
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// in Windows and Linux. So we disable the test on Windows
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// here.
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// REQUIRES: !system-windows
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// On AIX, the default output for `-c` may be `.s` instead of `.o`,
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// which makes the test fail. So disable the test on AIX.
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// REQUIRES: !system-aix
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//
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// RUN: rm -rf %t
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// RUN: mkdir %t
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// RUN: split-file %s %t
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//
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// Tests that the .pcm file will be generated in the same directory with the specified
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// output and the name of the .pcm file should be the same with the input file.
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// RUN: %clang -std=c++20 %t/Hello.cppm -fmodule-output -c -o %t/output/Hello.o \
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// RUN: -### 2>&1 | FileCheck %t/Hello.cppm
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//
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// Tests that the output file will be generated in the input directory if the output
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// file is not the corresponding object file.
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// RUN: %clang -std=c++20 %t/Hello.cppm %t/AnotherModule.cppm -fmodule-output -o \
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// RUN: %t/output/a.out -### 2>&1 | FileCheck %t/AnotherModule.cppm
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//
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// Tests that clang will reject the command line if it specifies -fmodule-output with
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// multiple archs.
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// RUN: not %clang %t/Hello.cppm -fmodule-output -arch i386 -arch x86_64 -### -target \
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// RUN: x86_64-apple-darwin 2>&1 | FileCheck %t/Hello.cppm -check-prefix=MULTIPLE-ARCH
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// Tests that the .pcm file will be generated in the same path with the specified one
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// in the comamnd line.
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// RUN: %clang -std=c++20 %t/Hello.cppm -fmodule-output=%t/pcm/Hello.pcm -o %t/Hello.o \
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// RUN: -c -### 2>&1 | FileCheck %t/Hello.cppm --check-prefix=CHECK-SPECIFIED
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//
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// RUN: %clang -std=c++20 %t/Hello.cppm -fmodule-output=%t/Hello.pcm -fmodule-output -c -fsyntax-only \
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// RUN: -### 2>&1 | FileCheck %t/Hello.cppm --check-prefix=CHECK-NOT-USED
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// Test that we can emit a warning if the type of the input file is not a module interface unit.
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// RUN: %clang -std=c++20 %t/a.cpp -fmodule-output -c -o %t/a.o -### 2>&1 | FileCheck %t/a.cpp
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//--- Hello.cppm
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export module Hello;
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// CHECK: "-emit-module-interface" {{.*}}"-main-file-name" "Hello.cppm" {{.*}}"-o" "{{.*}}/output/Hello.pcm" "-x" "c++" "{{.*}}/Hello.cppm"
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// CHECK: "-emit-obj" {{.*}}"-main-file-name" "Hello.cppm" {{.*}}"-o" "{{.*}}/output/Hello.o" "-x" "pcm" "{{.*}}/output/Hello.pcm"
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// MULTIPLE-ARCH: option '-fmodule-output' can't be used with multiple arch options
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// CHECK-SPECIFIED: "-emit-module-interface" {{.*}}"-main-file-name" "Hello.cppm" {{.*}}"-o" "{{.*}}/pcm/Hello.pcm" "-x" "c++" "{{.*}}/Hello.cppm"
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// CHECK-SPECIFIED: "-emit-obj" {{.*}}"-main-file-name" "Hello.cppm" {{.*}}"-o" "{{.*}}/Hello.o" "-x" "pcm" "{{.*}}/pcm/Hello.pcm"
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// CHECK-NOT-USED-NOT: warning: argument unused during compilation: '-fmodule-output'
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// CHECK-NOT-USED-NOT: warning: argument unused during compilation: '-fmodule-output=Hello.pcm'
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// CHECK-NOT-USED-NOT: "-fmodule-output"
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// CHECK-NOT-USED-NOT: "-fmodule-output="
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//--- AnotherModule.cppm
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export module AnotherModule;
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// CHECK: "-emit-module-interface" {{.*}}"-main-file-name" "Hello.cppm" {{.*}}"-o" "{{.*}}/Hello.pcm" "-x" "c++" "{{.*}}/Hello.cppm"
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// CHECK: "-emit-obj" {{.*}}"-main-file-name" "Hello.cppm" {{.*}}"-o" "{{.*}}/Hello-{{.*}}.o" "-x" "pcm" "{{.*}}/Hello.pcm"
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// CHECK: "-emit-module-interface" {{.*}}"-main-file-name" "AnotherModule.cppm" {{.*}}"-o" "{{.*}}/AnotherModule.pcm" "-x" "c++" "{{.*}}/AnotherModule.cppm"
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// CHECK: "-emit-obj" {{.*}}"-main-file-name" "AnotherModule.cppm" {{.*}}"-o" "{{.*}}/AnotherModule-{{.*}}.o" "-x" "pcm" "{{.*}}/AnotherModule.pcm"
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//--- a.cpp
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export module a;
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// CHECK: warning: argument unused during compilation: '-fmodule-output'
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