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.
102 lines
3.9 KiB
C++
102 lines
3.9 KiB
C++
// This test checks the on-demand scanning of system inputs, in particular:
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// 1. System inputs are scanned only when needed.
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// 2. Imports between system modules are supported.
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// RUN: split-file %s %t
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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 && cd %t
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// RUN: mkdir -p %t/Inputs/usr/lib/x86_64-linux-gnu
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// RUN: touch %t/Inputs/usr/lib/x86_64-linux-gnu/libc++.so
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// RUN: touch %t/Inputs/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/Inputs/usr/lib/x86_64-linux-gnu/libc++.modules.json
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// RUN: mkdir -p %t/Inputs/usr/lib/share/libc++/v1
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// RUN: cat %t/std.cppm > %t/Inputs/usr/lib/share/libc++/v1/std.cppm
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// RUN: cat %t/std.compat.cppm > %t/Inputs/usr/lib/share/libc++/v1/std.compat.cppm
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// RUN: cat %t/core.cppm > %t/Inputs/usr/lib/share/core.cppm
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// RUN: cat %t/unused.cppm > %t/Inputs/usr/lib/share/unused.cppm
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// RUN: %clang -std=c++20 \
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// RUN: -fmodules-driver -Rmodules-driver \
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// RUN: -stdlib=libc++ \
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// RUN: -resource-dir=%t/Inputs/usr/lib/x86_64-linux-gnu \
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// RUN: --target=x86_64-linux-gnu \
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// RUN: -fmodules-cache-path=%t/modules-cache \
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// RUN: %t/main.cpp %t/foo.cpp \
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// RUN: -### 2>&1 \
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// RUN: | sed 's:\\\\\?:/:g' \
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// RUN: | FileCheck %s -DPREFIX=%/t
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// CHECK: digraph "Module Dependency Graph" {
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//
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// CHECK-DAG: "[[PREFIX]]/main.cpp-x86_64-unknown-linux-gnu" [fillcolor=3, label="{ Filename: [[PREFIX]]/main.cpp | Triple: x86_64-unknown-linux-gnu }"];
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// CHECK-DAG: "[[PREFIX]]/foo.cpp-x86_64-unknown-linux-gnu" [fillcolor=3, label="{ Filename: [[PREFIX]]/foo.cpp | Triple: x86_64-unknown-linux-gnu }"];
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// CHECK-DAG: "std-x86_64-unknown-linux-gnu" [fillcolor=2, label="{ Filename: {{.*}} | Module type: Named module | Module name: std | Triple: x86_64-unknown-linux-gnu }"];
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// CHECK-DAG: "std.compat-x86_64-unknown-linux-gnu" [fillcolor=2, label="{ Filename: {{.*}} | Module type: Named module | Module name: std.compat | Triple: x86_64-unknown-linux-gnu }"];
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// CHECK-DAG: "core-x86_64-unknown-linux-gnu" [fillcolor=2, label="{ Filename: {{.*}} | Module type: Named module | Module name: core | Triple: x86_64-unknown-linux-gnu }"];
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//
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// CHECK-DAG: "std-x86_64-unknown-linux-gnu" -> "[[PREFIX]]/main.cpp-x86_64-unknown-linux-gnu";
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// CHECK-DAG: "std-x86_64-unknown-linux-gnu" -> "[[PREFIX]]/foo.cpp-x86_64-unknown-linux-gnu";
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// CHECK-DAG: "std-x86_64-unknown-linux-gnu" -> "std.compat-x86_64-unknown-linux-gnu";
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// CHECK-DAG: "std.compat-x86_64-unknown-linux-gnu" -> "[[PREFIX]]/main.cpp-x86_64-unknown-linux-gnu";
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// CHECK-DAG: "core-x86_64-unknown-linux-gnu" -> "[[PREFIX]]/foo.cpp-x86_64-unknown-linux-gnu";
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// CHECK: }
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//--- main.cpp
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import std;
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import std.compat;
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//--- foo.cpp
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import std;
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import core;
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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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// The module 'core' is isn't really a system module in libc++ or libstdc++.
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// This is only to test that any module marked with '"is-std-library": true' can
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// be imported on demand.
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//--- core.cppm
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export module core;
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//--- unused.cppm
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export module unused;
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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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"logical-name": "core",
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"source-path": "../share/core.cppm",
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"is-std-library": true
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},
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{
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"logical-name": "unused",
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"source-path": "../share/unused.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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