Naveen Seth Hanig
a16511c2d9
With this, Standard library modules are always precompiled as the primary output of their `-cc1` invocation, instead of being produced as a byproduct of compiling the Standard library modules to object files. This also keeps Standard library module precompilation independent of the final phase specified on the command line, so importing them keep working under `-fsyntax-only` (and other command-line options that specify the final phase). This also makes the Standard library module precompilation independent of the `-o` flag, so that a command like `clang -std=c++23 -fmodules-driver main.cpp -o main` no longer redirects the Standard library module outputs to 'main', breaking the compilation.
134 lines
4.9 KiB
C++
134 lines
4.9 KiB
C++
// Checks that -fmodules-driver correctly handles the import of Standard library
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// modules.
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// REQUIRES: x86-registered-target
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// The standard library modules manifest (libc++.modules.json) is discovered
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// relative to the installed C++ standard library runtime libraries
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// We need to create them in order for Clang to find the manifest.
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// RUN: rm -rf %t && split-file %s %t
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// RUN: mkdir -p %t/FakeSysroot/usr/lib/x86_64-linux-gnu
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// RUN: touch %t/FakeSysroot/usr/lib/x86_64-linux-gnu/libc++.so
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// RUN: touch %t/FakeSysroot/usr/lib/x86_64-linux-gnu/libc++.a
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// RUN: sed "s|DIR|%/t|g" %t/libc++.modules.json.in > \
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// RUN: %t/FakeSysroot/usr/lib/x86_64-linux-gnu/libc++.modules.json
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// RUN: mkdir -p %t/FakeSysroot/usr/lib/share/libc++/v1
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// RUN: cat %t/std.cppm > %t/FakeSysroot/usr/lib/share/libc++/v1/std.cppm
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// RUN: cat %t/std.compat.cppm > %t/FakeSysroot/usr/lib/share/libc++/v1/std.compat.cppm
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//--- libc++.modules.json.in
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{
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"version": 1,
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"revision": 1,
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"modules": [
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{
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"logical-name": "std",
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"source-path": "../share/libc++/v1/std.cppm",
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"is-std-library": true
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},
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{
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"logical-name": "std.compat",
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"source-path": "../share/libc++/v1/std.compat.cppm",
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"is-std-library": true
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}
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]
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}
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//--- std.cppm
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export module std;
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//--- std.compat.cppm
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export module std.compat;
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import std;
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//--- main.cpp
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import std.compat;
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import std;
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int main() {}
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// RUN: %clang -std=c++23 -stdlib=libc++ \
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// RUN: -fmodules-driver -Rmodules-driver -Rmodule-import \
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// RUN: -resource-dir=%t/FakeSysroot/usr/lib/x86_64-linux-gnu \
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// RUN: --sysroot=%t/FakeSysroot \
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// RUN: -L%t/Inputs/usr/lib/x86_64-linux-gnu \
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// RUN: --target=x86_64-linux-gnu \
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// RUN: -c %t/main.cpp 2>&1 \
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// RUN: --verbose \
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// RUN: | sed 's:\\\\\?:/:g' \
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// RUN: | FileCheck -DPREFIX=%/t %s
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// Skip past diagnostics omitted during the dependency scan.
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// CHECK: clang: remark: printing module dependency graph [-Rmodules-driver]
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// Checks that the standard library modules are primary outputs.
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// TODO: Test the same for -fno-modules-reduced-bmi when supported by
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// -fmodules-driver.
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// CHECK: -o {{.*std-[^ ]*\.pcm}}
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// CHECK-SAME: -emit-reduced-module-interface
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// CHECK-SAME: -main-file-name std.cppm
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// CHECK: -o {{.*std\.compat-[^ ]*\.pcm}}
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// CHECK-SAME: -emit-reduced-module-interface
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// CHECK-SAME: -main-file-name std.compat.cppm
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// Checks that the object file is generated for the main TU.
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// CHECK: -emit-obj
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// CHECK-SAME: -main-file-name main.cpp
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// Checks that the standard library modules are successfully imported.
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// CHECK: [[PREFIX]]/main.cpp:1:1: remark: importing module 'std.compat' from
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// CHECK: [[PREFIX]]/main.cpp:1:1: remark: importing module 'std' into 'std.compat' from
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// CHECK: [[PREFIX]]/main.cpp:2:1: remark: importing module 'std' from
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// Checks that standard library modules are still precompiled with -emit-llvm.
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// RUN: %clang -std=c++23 -stdlib=libc++ \
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// RUN: -fmodules-driver -Rmodules-driver -Rmodule-import \
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// RUN: -resource-dir=%t/FakeSysroot/usr/lib/x86_64-linux-gnu \
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// RUN: --sysroot=%t/FakeSysroot \
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// RUN: -L%t/Inputs/usr/lib/x86_64-linux-gnu \
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// RUN: --target=x86_64-linux-gnu \
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// RUN: %t/main.cpp -S -emit-llvm -o out.ll \
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// RUN: --verbose 2>&1 \
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// RUN: | sed 's:\\\\\?:/:g' \
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// RUN: | FileCheck -DPREFIX=%/t --check-prefix=CHECK-EMIT-LLVM %s
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// Skip past diagnostics omitted during the dependency scan.
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// CHECK-EMIT-LLVM: clang: remark: printing module dependency graph [-Rmodules-driver]
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// CHECK-EMIT-LLVM: -o {{.*std-[^ ]*\.pcm}}
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// CHECK-EMIT-LLVM-SAME: -emit-reduced-module-interface
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// CHECK-EMIT-LLVM-SAME: -main-file-name std.cppm
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// CHECK-EMIT-LLVM: -o {{.*std\.compat-[^ ]*\.pcm}}
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// CHECK-EMIT-LLVM-SAME: -emit-reduced-module-interface
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// CHECK-EMIT-LLVM-SAME: -main-file-name std.compat.cppm
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// CHECK-EMIT-LLVM: -emit-llvm
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// CHECK-EMIT-LLVM-SAME: -main-file-name main.cpp
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// Checks that standard library modules are still precompiled with -fsyntax-only.
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// RUN: %clang -std=c++23 -stdlib=libc++ \
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// RUN: -fmodules-driver -Rmodules-driver -Rmodule-import \
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// RUN: -resource-dir=%t/FakeSysroot/usr/lib/x86_64-linux-gnu \
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// RUN: --sysroot=%t/FakeSysroot \
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// RUN: -L%t/Inputs/usr/lib/x86_64-linux-gnu \
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// RUN: --target=x86_64-linux-gnu \
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// RUN: -fsyntax-only \
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// RUN: %t/main.cpp \
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// RUN: --verbose 2>&1 \
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// RUN: | sed 's:\\\\\?:/:g' \
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// RUN: | FileCheck -DPREFIX=%/t --check-prefix=CHECK-SYNTAX-ONLY %s
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// Skip past diagnostics omitted during the dependency scan.
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// CHECK-SYNTAX-ONLY: clang: remark: printing module dependency graph [-Rmodules-driver]
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// CHECK-SYNTAX-ONLY: -o {{.*std-[^ ]*\.pcm}}
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// CHECK-SYNTAX-ONLY-SAME: -emit-reduced-module-interface
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// CHECK-SYNTAX-ONLY-SAME: -main-file-name std.cppm
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// CHECK-SYNTAX-ONLY: -o {{.*std\.compat-[^ ]*\.pcm}}
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// CHECK-SYNTAX-ONLY-SAME: -emit-reduced-module-interface
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// CHECK-SYNTAX-ONLY-SAME: -main-file-name std.compat.cppm
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// CHECK-SYNTAX-ONLY: -cc1 {{.*}} -Rmodules-driver
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// CHECK-SYNTAX-ONLY-NOT: {{ -o }}
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